M Series Service Manual Rev R March 2013.pdf
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M Series® Service Manual
9650-0450-01 Rev R
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The issue date for the M Series Service Manual (REF 9650-0450-01 Rev. R) is March, 2013.
If more than 3 years have elapsed since the issue date, contact ZOLL Medical Corporation to determine if additional product information updates
are available.
Copyright © 2013 ZOLL Medical Corporation. All rights reserved. Rectilinear Biphasic, M Series, and ZOLL are trademarks or registered
trademarks of ZOLL Medical Corporation in the United States and/or other countries.
Masimo is a trademark or registered trademark of Masimo Corporation in the United States
and/or other countries.
ZOLL Medical Corporation
269 Mill Road
Chelmsford, MA USA
01824-4105
ZOLL International Holding B.V.
Newtonweg 18
6662 PV ELST
The Netherlands
0123
9650-0450-01 Rev R
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M Series Service Manual
TABLE
OF
CONTENTS
PREFACE ....................................................................................................................................................................................... V
Overview ..............................................................................................................................................................................................v
Safety Considerations ...........................................................................................................................................................................v
Additional Reference Material ........................................................................................................................................................... vi
Conventions ....................................................................................................................................................................................... vii
Service Policy Warranty .................................................................................................................................................................... vii
Technical Service .............................................................................................................................................................................. vii
Technical Service for International Customers ................................................................................................................................ viii
CHAPTER 1 MAINTENANCE TESTS ..............................................................................................................................................1
Overview ..............................................................................................................................................................................................1
Before You Begin the Maintenance Tests ............................................................................................................................................2
Equipment that You Need to Perform the M Series Maintenance Tests ..............................................................................................3
Equipment You Need for the M Series Options Maintenance Tests ...................................................................................................4
1.0 Physical Inspection of the Unit...................................................................................................................................................... 5
2.0 Front Panel Button Test................................................................................................................................................................. 7
3.0 3, 5, and 12 Leads Test ................................................................................................................................................................ 10
4.0 Power Supply Test (Optional) ..................................................................................................................................................... 11
5.0 Leakage Current Test................................................................................................................................................................... 15
6.0 Paddles Test (If applicable) ......................................................................................................................................................... 16
7.0 Heart Rate Display Test............................................................................................................................................................... 18
8.0 Calibrating Pulses on Strip Chart Test ........................................................................................................................................ 19
9.0 Notch Filter Test.......................................................................................................................................................................... 20
10.0 Heart Rate Alarm Test............................................................................................................................................................... 21
11.0 Defibrillator Self Test................................................................................................................................................................ 23
12.0 Synchronized Cardioversion Test.............................................................................................................................................. 25
13.0 Shock Test ................................................................................................................................................................................. 26
14.0 Summary Report Test................................................................................................................................................................ 29
15.0 Advisory Message Test ............................................................................................................................................................. 30
16.0 Pacer Test .................................................................................................................................................................................. 31
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17.0 SpO2 Monitor Test for SpO2 Option ........................................................................................................................................ 33
18.0 EtCO2 Monitor Test (for EtCO2 Option).................................................................................................................................. 36
19.0 Temperature Test........................................................................................................................................................................ 38
20.0 IBP Monitoring Test................................................................................................................................................................. 39
21.0 NIBP Transducer Calibration Test ............................................................................................................................................. 44
22.0 NIBP Monitor Test ..................................................................................................................................................................... 47
23.0 NIBP Volume Leak Test with Fluke Biomedical NIBP Analyzer............................................................................................. 49
24.0 Bluetooth Test............................................................................................................................................................................ 51
CHAPTER 2 TROUBLESHOOTING ................................................................................................................................................53
Overview ............................................................................................................................................................................................53
Troubleshooting ..................................................................................................................................................................................54
Zoll M Series Error Messages ............................................................................................................................................................58
CHAPTER 3 DISASSEMBLY PROCEDURES ..................................................................................................................................75
Overview ............................................................................................................................................................................................75
Required Equipment ...........................................................................................................................................................................76
Parts That May Need Replacing After Disassembly ..........................................................................................................................76
Safety Precautions ..............................................................................................................................................................................77
Overview of Modules .........................................................................................................................................................................78
1. Removing the ZIF Keeper ............................................................................................................................................81
2. Removing the Front Panel ............................................................................................................................................82
2A.Removing the Display .................................................................................................................................................83
2B.Removing the Control Board ......................................................................................................................................84
3. Removing the Upper Housing Assembly .....................................................................................................................86
4. Removing the System Board Assembly .......................................................................................................................87
5. Removing the Battery Interconnect Board Assembly ..................................................................................................90
6. Removing the High Voltage/Charger Assembly .........................................................................................................91
7. Removing the High Voltage Module Assembly ..........................................................................................................94
8. Removing the High Voltage Capacitor Assembly .......................................................................................................96
9. Removing the System Interconnect Board ...................................................................................................................98
10.Removing the Printer/Recorder Motor ......................................................................................................................100
11.Removing the Lower Housing Assembly ..................................................................................................................102
12.Removing the Print Head Assembly ..........................................................................................................................103
13.Removing the PCMCIA Card Slot Assembly ...........................................................................................................104
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14.Removing the Paddle Release Latch .........................................................................................................................105
CHAPTER 4 REPLACEMENT PARTS .........................................................................................................................................107
Overview ..........................................................................................................................................................................................107
Replacement Parts ............................................................................................................................................................................108
Field Replacement Parts ...................................................................................................................................................................112
CHAPTER 5 FUNCTIONAL DESCRIPTION .................................................................................................................................115
Overview ..........................................................................................................................................................................................115
Main System Board ..........................................................................................................................................................................116
Main System Board Functions .........................................................................................................................................................118
Power Supply ....................................................................................................................................................................................120
ECG Front End .................................................................................................................................................................................121
Multifunction Electrode (MFE)/PADS (System Board and High Voltage Module) .......................................................................121
CPU and EPU ...................................................................................................................................................................................121
High Voltage Module .......................................................................................................................................................................122
Defibrillator Charging and Discharging ...........................................................................................................................................123
High Voltage Capacitor Monitor ......................................................................................................................................................124
Pacer/Defibrillator Control Signals ..................................................................................................................................................125
Internal Discharge Resistor Module .................................................................................................................................................127
AC/DC Charger Module ...................................................................................................................................................................127
System Interconnect Module ............................................................................................................................................................127
Stripchart Recorder ...........................................................................................................................................................................128
PCMCIA Slots ..................................................................................................................................................................................128
Front Panel and Controls PWBA ......................................................................................................................................................128
M Series Options ..............................................................................................................................................................................128
Isolated Power Supply Module .........................................................................................................................................................129
12 Lead Option .................................................................................................................................................................................129
Pulse Oximetry (SpO2) ....................................................................................................................................................................130
End Tidal Carbon Dioxide (EtCO2) .................................................................................................................................................130
Biphasic Waveform ..........................................................................................................................................................................131
APPENDIX ...................................................................................................................................................................................135
Overview ..........................................................................................................................................................................................135
Interconnect Diagram for the M Series Monophasic Unit ...............................................................................................................136
Interconnect Diagram for the M Series Biphasic Unit .....................................................................................................................137
Interconnect Diagram for the M Series CCT Biphasic Unit ............................................................................................................138
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INDEX ..........................................................................................................................................................................................139
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M Series Service Manual
Preface
Overview
ZOLL Medical Corporation’s M Series Service Manual is intended for the service technician whose responsibility
is to identify malfunctions and/or make repairs at the subassembly level. The Zoll M Series Service Manual has five
main sections and one appendix.
Preface—Contains safety warnings and an overview of the manual’s contents. Be sure to review this section
thoroughly before attempting to use or service the M Series unit.
Chapter 1—Maintenance Tests explains how to check the defibrillator’s performance using a series of recommended
checkout procedures to be conducted every six months.
Chapter 2—Troubleshooting provides a listing of the procedures and error messages to help the service technician
detect faults and repair them.
Chapter 3—Disassembly Procedures describes step-by-step procedures for removing subassemblies from the
M Series unit.
Chapter 4—Replacement Parts List displays a complete list of ZOLL part numbers for field replaceable parts
available for the M Series unit, allowing the service person to identify and order replacement parts from ZOLL.
Chapter 5—Functional Description provides technical descriptions for the M Series major subassembly modules.
Appendix A—M Series Operator’s Manual.
Safety Considerations
The following section describes general warnings and safety considerations for operators and patients. Service
technicians should review the safety considerations prior to servicing any equipment and read the manual carefully
before attempting to disassemble the unit. Only qualified personnel should service the M Series unit.
Federal (U.S.A.) law restricts this unit for use by or on the order of a physician.
Safety and effectiveness data submitted by ZOLL Medical Corporation to the Food and Drug Administration (FDA)
under section 510(K) of the Medical Device Act to obtain approval to market is based upon the use of ZOLL
accessories such as disposable electrodes, patient cables and batteries. The use of external pacing/defibrillation
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electrodes and adapter units from sources other than ZOLL is not recommended. ZOLL makes no representations or
warranties regarding the performance or effectiveness of its products when used in conjunction with pacing/
defibrillation electrodes and adapter units from other sources. If unit failure is attributable to pacing/defibrillation
electrodes or adapter units not manufactured by ZOLL, this may void ZOLL's warranty.
Only qualified personnel should disassemble the M Series unit.
WARNING!
This unit can generate up to 4500 volts with sufficient current to cause lethal shocks.
All persons near the equipment must be warned to “STAND CLEAR” prior to discharging the defibrillator.
Do not discharge the unit’s internal energy more than three times in one minute or damage to the unit may result.
Do not discharge a battery pack except in a Base PowerCharger4x4 or compatible ZOLL Battery Charging/Testing unit.
Do not use the M Series in the presence of flammable agents (such as gasoline), oxygen-rich atmospheres, or
flammable anesthetics. Using the unit near the site of a gasoline spill may cause an explosion.
Do not use the unit near or within puddles of water.
NOTE
The M Series is protected against interference from radio frequency emissions typical of two-way radios and cellular
phones (digital and analog) used in emergency service/public safety activities. Users of the M Series should assess the
unit’s performance in their typical environment of use for the possibility of radio frequency interference from
high-power sources. Radio Frequency Interference (RFI) may be observed as shifts in monitor baseline, trace
compression, or transient spikes on the display.
Additional Reference Material
In addition to this guide, there are several other components to the Zoll M Series documentation. They include:
• Operator’s Guide - A comprehensive reference work that describes all the user tasks needed to operate the M Series.
• Configuration Guide - Describes the M Series features and functions whose operation can be customized by
authorized users.
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Conventions
WARNING!
Warning statements describe conditions or actions that can result in personal injury or death.
CAUTION
Caution statements describe conditions or actions that can result in damage to the unit.
NOTE
Notes contain additional information on using the defibrillator.
Service Policy Warranty
In North America: Consult your purchasing agreement for terms and conditions associated with your warranty. Outside
of North America, consult ZOLL authorized representative.
In order to maintain this warranty, the instructions and procedures contained in this manual must be strictly followed.
For additional information, please call the ZOLL Technical Service Department 1-800-348-9011 in North America.
Technical Service
If the ZOLL M Series unit requires service, contact the ZOLL Technical Service Department:
Telephone: 1-978-421-9655; 1-800-348-9011
Fax 1-978-421-0010
Have the following information available for the Technical Service representative:
• Unit serial number.
• Description of the problem.
• Department where equipment is used.
• Sample chart recorder strips documenting the problem, if applicable.
• Purchase Order to allow tracking of loan equipment.
• Purchase Order for a unit with an expired warranty.
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If the unit needs to be sent to ZOLL Medical Corporation, obtain a service order request number from the Technical
Service representative. Return the unit in its original container to:
ZOLL Medical Corporation
269 Mill Road
Chelmsford, Massachusetts 01824-4105
Attn: Technical Service Department
Telephone: 1-800-348-9011; 1-978-421-9655 FAX: 978-421-0010
Technical Service for International Customers
International customers should return the unit in its original container to the nearest authorized ZOLL Medical
Corporation Service Center. To locate an authorized service center, contact the International Sales Department at
ZOLL Medical at the above address.
Units are available on loan while your unit is being repaired.
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Chapter 1
Maintenance Tests
Overview
The M Series has two checkout procedures: the operator’s shift checklist and the extensive six-month maintenance
tests checkout procedures.
Because the M Series units must be maintained ready for immediate use, it is important for users to conduct the
Operator’s Shift Checklist procedure at the beginning of every shift. This procedure can be completed in a few minutes
and requires no additional test equipment. (See the ZOLL M Series Operator’s Guide for the Operator’s Shift
Checklist.)
A qualified biomedical technician must perform a more thorough maintenance test checkout every six months to
ensure that the functions of the M Series unit work properly. This chapter describes the step by step procedures for
performing the six month maintenance test checkout. Use the checklist at the back of this document (ZOLL M Series
Maintenance Tests Checklist) to record your results of the maintenance tests.
This chapter describes the following M Series maintenance tests:
1. Physical Inspection of the Unit
2. Front Panel Button
3. 3, 5, and 12 Leads
4. Power Supply
5. Leakage Current
6. Paddles
7. Heart Rate Display
8. Calibrating Pulses on Strip Chart
9. Notch Filter
10. Heart Rate Alarm
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11. Defibrillator Self Test
12. Synchronized Cardioversion
13. Shock
14. Summary Report
15. Advisory Message
16. Pacer
17. SpO2 Monitor
18. EtCO2 Monitor
19. Temperature Test
20. IBP Monitoring Test
21. NIBP Transducer Calibration Test
22. NIBP Monitor Test
23. NIBP Volume Leak Test with Fluke Biomedical NIBP Analyzer
24. Bluetooth Test
Before You Begin the Maintenance Tests
• Assemble the tools or specialized testing equipment listed in the “Equipment You Need to Perform the Maintenance
Tests” section shown below.
• Keep an extra fully charged ZOLL M Series compatible battery available.
• Schedule an hour to conduct the entire maintenance test.
• Photocopy the checklist at the back of this document and use the copy to record your results. As you conduct each
step of a procedure, mark the
Pass/Fail/NA check boxes on your checklist and then save it for your maintenance file.
• Perform the tests in the order presented.
• Perform all the steps of each test procedure.
• Complete all the steps of the procedure before evaluating the test results.
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M Series Service Manual
Equipment that You Need to Perform the M Series Maintenance
Tests
This section lists equipment that we use to perform the maintenance tests that we describe in this chapter. You can
substitute an equivalent device for a listed device; however, not all simulators and analyzers will produce the same
results. Be sure to follow the manufacturer’s recommendations for conducting the maintenance tests.
We recommend the use of the following equipment when performing M Series Maintenance Tests:
• ZOLL Medical Electrode Adapter from Fluke Biomedical (ZOLL Part Number 3010-0378).
• QED 6 Defibrillator Analyzer
• MFC Test Port Connector, 1004-0053-99
• Fluke Biomedical 601 Pro Series International Safety Analyzer.
• ECG Simulator; 12 Lead Simulator for 12 Lead test (e.g., Symbio CS1201).
• Stop watch.
• Standard series II PC flash memory cards.
• 1 red miniature alligator to miniature alligator test lead.
• 1 black miniature alligator to miniature alligator test lead.
• DC power supply (15 amp minimum).
• 0.1 ohm 1% resistor (1/4 watt or greater).
• 1000 ohm 1% resistor (1/4 watt or greater).
• Fluke 75 Multimeter or equivalent.
• Printer Paper.
• Battery.
• AC line cord.
• 3 lead, 5 lead and 12 lead ECG cables. (12 lead cable needed if 12 lead option is installed.
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M Series Service Manual
Equipment You Need for the M Series Options Maintenance
Tests
• Fluke Biomedical Index 2 SpO2 Simulator or equivalent. (For SpO2 units only.)
• SpO2 cable and sensor (if option is installed).
• EtCO2 cable, and CAPNOSTAT 3 Mainstream cable with airway adapter, or CAPNOSTAT 3 Sidestream cable with
cannula (if option is installed).
• Novametrix Capnostat Simulator Yb 1265/7100
• Paddles (if used).
• )
• Fluke Biomedical BP Pump 2 NIBP Monitor Analyzer (For NIBP units only) with NIBP cable and cuff (if NIBP
option is installed), or
• Fluke Biomedical Cufflink Analyzer (if NIBP option is installed)
• IBP Temperature Simulator 9100-0402-TF
• DNI Nevada 214B Patient SImulator, with M Series interface cable
NOTE The Fluke Biomedical BP Pump NIBP Monitor Analyzer and the Fluke Biomedical BP Pump NIBP Analyzer
use different technologies for testing NIBP monitors and therefore, the manual provides two different procedures for
performing the NIBP Volume Leak test with each of these types of test equipment.
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M Series Service Manual
1.0 Physical Inspection of the Unit
Tools Needed
Battery.
Test Setup
None.
Observe this...
1.1
Pass/Fail/NA
Housing
o o
Is the unit clean and undamaged?
1.2
Does the unit show signs of excessive wear?
o o
1.3
Does the handle work properly?
o o
1.4
Does the recorder door open and close properly?
o o
1.5
Are input connectors clean and undamaged?
o o
1.6
Are there any cracks in the housing?
o o
1.7
Do the front panel or selector switches have any damage or cracks?
o o
1.8
Are there any loose housing parts?
o o
1.9
Cables
o o
Are all cables free of cracks, cuts, exposed or broken wires?
1.10
Are all cable bend/strain reliefs undamaged and free of excessive cable
wear?
o o
1.11
Paddles
o o o
Do the adult and pedi plates have major scratches or show signs of damage?
1.12
Do the adult shoes slide on and off easily to expose the covered pedi plates?
o o o
1.13
Are the paddles clean (e.g., free of gel) and undamaged? (if applicable)
o o o
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Observe this...
1.14
Pass/Fail/NA
Battery
o o
Place battery in battery well.
1.15
Is the battery seated in the battery well correctly?
Record your results on the Maintenance Test Checklist.
6
o o
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M Series Service Manual
2.0 Front Panel Button Test
Tools Needed
Test Setup
QED 6 Defibrillator Analyzer
• Install strip chart paper into the recorder tray.
• Install the battery in the unit or connect the A/C power cord to the unit and then plug the cord into an electrical outlet.
• Connect the universal cable and ECG cable (3 lead, 5 lead, or 12 lead) to the QED 6 Analyzer (or equivalent).
Do this...
Verify that...
Turn the selector switch to
MONITOR.
The unit sounds 4 beep tones. PADS and MONITOR
display on the monitor.
(For AED units, turn the selector
switch to ON and select Manual
mode.)
Note: PADS is a factory default setting.
2.2
Set the QED 6 analyzer to NSR
of 120 BPM. To check the size of
the ECG waveform, press the
SIZE button.
As you press the SIZE button five times (0.5, 1.0, 1.5,
2.0, 3.0), the size of the ECG waveform appropriately
changes on the display.
o o
2.3
Press the ALARM SUSPEND
button.
Alarm symbol changes from disabled to enabled. If the
alarm sounds, press the ALARM SUSPEND button to
turn it off. The alarm will only be suspended for 90
seconds at this point. Press and hold the ALARM
SUSPEND button for 3 seconds to disable alarms.
o o o
2.4
Press the RECORDER button.
The strip chart paper moves out of the unit from the
paper tray. Check that the correct time, date, ECG
lead annotation and waveform are recorded on the
paper. (Set Time and Date, if necessary.)
o o o
2.5
Open the paper compartment
door, then press the
RECORDER button.
The CHECK RECORDER message appears on the
monitor.
o o o
2.6
Close the paper compartment
door, then press the
RECORDER button.
The strip chart paper flows out of paper tray and the
monitor no longer displays the CHECK RECORDER
message.
o o o
2.1
7
Pass/Fail/
NA
o o
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M Series Service Manual
Do this...
Verify that...
Pass/Fail/
NA
2.7
Press the RECORDER button.
The strip chart paper stops flowing out of the paper
tray.
o o o
2.8
Press the VOLUME softkey.
The volume bar graph displays.
o
o
o
o
o
o
o
Note: The QRS tone is on or off. There is no gradual
change in volume. If equipped, voice prompts
are gradual. Note: The voice volume has 5
settings. Setting 3 is in the mid-range.
2.9
Press the INC softkey.
The bar graph appears on the display, indicating an
increase in volume.
Note: This action does not increase the volume of the
unit’s audio prompts.
2.10
Press the DEC softkey.
The bar graph appears on the display, indicating a
decrease in volume.
Verify that pressing the DEC softkey until only the last
bar appears silences the unit’s audio prompts,
otherwise the volume of the audio prompts does not
decrease.
2.11
Press the CONTRAST button.
The monitor screen displays the Contrast Menu.
o
2.12
Press the INC softkey.
The screen contrast and bar graph increases on the
display.
o o o
2.13
Press the DEC softkey.
The screen contrast and bar graph decreases on the
display.
o
2.14
Press the SUMMARY button.
The monitor screen displays the Summary menu,
showing the summary report options.
o o o
2.15
Press the CODEMARKER
button.
The monitor screen displays the Code marker menu.
o o o
2.16
Connect to AC or DC current
and install the battery. Turn the
unit off.
The CHARGER ON indicator lights (either the Green
or Amber indicator lights).
o o o
8
o
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M Series Service Manual
Do this...
Verify that...
Pass/Fail/
NA
2.17
Remove the battery.
The charger light alternately flashes green and amber.
o
o
2.18
Replace the battery and the turn
unit on.
The amber charger light illuminates.
o
o
2.19
Press the ANALYZE button.
The SELECT DEFIB MODE message appears on the
monitor (for manual devices).
o o o
2.20
Connect the universal cable to
the QED 6. Move the selector
switch to DEFIB. Select 2J.
Press the CHARGE button.
The display shows that the unit is charging. The
SHOCK button lights when the unit is charged, and
the Ready tone for DEFIB sounds.
o o o
2.21
Press and hold the ENERGY
SELECT down arrow.
The unit discharges internally and selected energy
decrements to 1J.
o o o
2.22
Press and release the ENERGY
SELECT up arrow 19 times.
The following selections appear: Verify the following
energy amounts display incrementally:
o o o
Biphasic:2-10, 15, 20,30, 50, 75, 100,120, 150, 200J
Monophasic(DSW): 2-10, 15,20,30,50,75, 100, 150,
200, 300, 360J
2.23
Press the CHARGE button.
The display shows the unit charged up to 200J (360J
monophasic) and the SHOCK button lights.
o o o
2.24
Press the SHOCK button.
The unit discharges and the SHOCK button is no
longer illuminated.
A 15 second strip chart automatically prints, displaying
the number of joules delivered (if equipped with
recorder and configured to print event).
o o o
Record your results on the Maintenance Test Checklist.
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M Series Service Manual
3.0 3, 5, and 12 Leads Test
Tools Needed:
Test Setup:
3 lead, 5 lead, and 12 lead cables. Test each cable separately. QED 6 Defibrillator Analyzer.
The M Series unit must be configured to display ECG LEAD OFF message.
Connect the lead wires appropriate to each test to the QED 6 Defibrillator Analyzer.
Do this...
Observe this...
3.1
Turn the selector switch to
MONITOR. Select leads.
The monitor displays the NO ECG LEADS OFF
message.
o o o
3.2
Disconnect one lead from the
simulator.
The monitor displays the ECG LEAD OFF message
within 3 seconds (if configured).
o o o
3.3
Reconnect the lead. Repeat
step 3.2 with the remaining
leads.
The ECG LEAD OFF message appears when the
lead is disconnected and clears the lead is
reconnected.
o o o
3.4
Repeat 3.2 and 3.3 for 5 lead
and 12 lead cables.
Note: If heart rate alarm sounds, press and hold the
o o o
Note:
ALARM SUSPEND button for 4 seconds to
disable the alarms.
When testing the 12 lead cable, the ECG
LEAD OFF message displays when you pull
off a limb lead. When you pull off a V lead, the
ECG VX LEAD OFF message displays, where
“X” is the number between 1 and 6.
Record your results on the Maintenance Tests Checklist.
10
Pass/Fail/
NA
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M Series Service Manual
4.0 Power Supply Test (Optional)
Tools Needed:
• 1 red miniature alligator to miniature alligator test lead.
• 1 black miniature alligator to miniature alligator test lead.
• DC power supply (15 Amp minimum).
• 0.1 ohmresistor (¼W or greater).
• 1000 ohm 1% resistor (¼W or greater).
• Fluke 75 multimeter or equivalent.
Test Setup:
Make sure the unit and power supply are turned off.
Connect one end of the black lead to the “-” terminal in the battery well.
Connect the other end of the black lead to the “-” terminal of the power supply.
Connect the red lead to “+” terminal socket of the battery well. Use the middle pin with the plastic guard around it.
Connect the other end of the red lead to the “+” terminal of the power supply.
Set the power supply voltage to 7V.
CAUTION
Be sure to connect the power supply properly to the M Series battery well terminals or damage to the unit may result. Do NOT raise
the power supply voltage above 12V.
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M Series Service Manual
Red
Battery Well
?
?
15 Amp
Supply
Black
4.1
Do this...
Verify that...
Pass/
Fall
Turn the selector switch to
MONITOR.
The unit does not turn on.
o o
(For AED units, turn the selector
switch to ON and select Manual
mode.)
4.2
Turn the selector switch to the
OFF position.
4.3
Adjust the power supply voltage to
10.3V and turn the selector switch
to MONITOR (for AED units, turn
the selector switch to the ON
position).
The unit turns on.
o o
4.4
Low Battery Test
The unit does not display the LOW BATTERY message.
o o
Set voltage to 9.8V.
4.5
Set voltage to 9.4V.
The unit displays the LOW BATTERY message within 30
seconds.
o o
4.6
Shut Down Voltage Test
The unit shuts off within 30 seconds.
o o
Set voltage to 8.5V.
Record your results on the Maintenance Tests Checklist.
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M Series Service Manual
Test Setup
Remove red lead from power supply and connect to 0.1ohm resistor.
Connect other end of resistor to “+” terminal of power supply using a second red label.
Connect multimeter across the resistor.
Set voltage scale (if DVM is not autoranging) to 220mV.
_
Red
DMM
+
+
Battery Well
_
+
Black
Do this....
4.7
_
Observe this...
System Current Test
Set power supply to 10.3V.
13
15 Amp
Supply
Pass/
Fail/
Page 24
M Series Service Manual
4.8
Do this....
Observe this...
Turn the selector switch to
MONITOR. (For AED units, turn
the selector switch to ON and
select Manual mode.
Voltage across resistor should be 80 mV or less (<800
mA of ON current). Note: Without optional parameters.
Pass/
Fail/
o
o
o
o
o
o
a) With green screen or LCD and no options <80mV.
b) With yellow screen and no options <81mV.
c) With yellow screen and SpO2 <104mV.
d) With yellow screen and voice recording <91mV.
e) With yellow screen, voice recording, and SpO2
<114mV.
f) All devices with EtCO2 <121mV.
4.9
Turn unit off.
Record your results on the Maintenance Test Checklist
Off Current Test
Test Setup
Remove 0.1 ohm resistor and replace with 1K
Connect DMM across resistor.
Set voltage scale to DCV.
Measure voltage across resistor.
4.10
Measure across resistor with unit
turned off.
Voltage should be less than 450mV (<450uA of current).
Record your results on the Maintenance Test Checklist
14
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M Series Service Manual
5.0 Leakage Current Test
Tools Needed:
See the manufacturer’s instructions or supplied specifications for the leakage tester you use.
Test Setup:
See the manufacturer’s instructions or supplied specifications for the leakage tester you use. Repeat leakage test with
accessories: MFC, external paddles, and anterior/posterior paddles.
Table 1:
Maximum Leakage Acceptance Limits
Normal Condition
Single Fault Condition*
ECG
10
50
Universal
100
100
Earth
500
1000
*Single fault considered AC mains on applied part.
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M Series Service Manual
6.0 Paddles Test (If applicable)
Tools Needed:
QED 6 Defibrillator Analyzer.
Test Setup:
If applicable, connect the universal cable to the paddles and place the paddles in paddle wells.
Do this...
Verify that...
Pass/Fail/
NA
6.1
Turn the selector switch to
DEFIB (For AED units,turn the
selector switch to ON and
select Manual mode.) Press
and hold the ENERGY DOWN
button on the sternum paddle.
The energy selection decreases to 1J.
o
o
6.2
Press and release the ENERGY
UP button on the sternum paddle
for each setting.
The joules selection increases as follows: Biphasic 110, 15, 20, 30, 50, 75, 100, 120, 150, 200J.
o
o
6.3
Press and release the
RECORDER button on the
sternum paddle.
The recorder starts printing.
o
o
6.4
Press and release the
RECORDER button again.
The recorder stops printing.
o
o
6.5
Select 30J using the paddle
ENERGY button. Press the
CHARGE button on the Apex
paddle.
The unit charges to 30J, then the red LED charge
indicator illuminates and the charge tone sounds.
o
o
6.6
Press and release the APEX
SHOCK button.
The unit does not discharge.
o
o
6.7
Press and release the
STERNUM SHOCK button.
The unit does not discharge.
o
o
6.8
Press and hold both paddles
SHOCK buttons.
The unit discharges. The TEST OK message displays
and the red LED turns off. If configured, the recorder
prints a strip chart.
o
o
Monophasic (DSW): 1-10,15, 20, 30, 50, 75, 100, 150,
200, 300, 360.
Note: The front panel shock button does not
illuminate.
16
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M Series Service Manual
Do this...
Verify that...
Record your results on the Maintenance Tests Checklist.
17
Pass/Fail/
NA
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M Series Service Manual
7.0 Heart Rate Display Test
Tools Needed:
• ECG Cable (3, 5 or 12 leads).
• QED 6 Defibrillator Analyzer.
Test Setup:
Turn the selector switch to MONITOR (For AED units, turn the selector switch to ON and select Manual override.)
Press LEAD button until “I” displays.
Connect the ECG leads to the QED 6 Defibrillator Analyzer.
Connect the ECG cable to the unit.
7.1
Do this...
Verify that...
Set the QED 6 Defibrillator
Analyzer to 120BPM.
The Heart Rate displays as 120 +/- 2 bpm.
Record your results on the Maintenance Tests Checklist.
18
Pass/Fail/
NA
o o o
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M Series Service Manual
8.0 Calibrating Pulses on Strip Chart Test
Tools Needed:
Test Setup:
None
None.
Do this...
8.1
Press the RECORDER button.
8.2
Press and hold SIZE button to
activate the calibration signal.
Verify that...
The strip chart displays a signal of 300 ppm with an
amplitude of 10 mm +/- 1 mm. The signal also appears
on the video display.
Record your results on the Maintenance Tests Checklist.
19
Pass/Fail/
NA
o
o
o
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M Series Service Manual
9.0 Notch Filter Test
Tools Needed:
QED 6 Defibrillator Analyzer.
Test Setup:
Connect the ECG cable to the QED 6 Defibrillator Analyzer.
Connect the ECG cable to the unit.
Do this...
9.1
Verify that...
Pass/Fail/
NA
Turn the selector switch to
MONITOR mode.
(For AED units, turn the selector
switch to ON and select Manual
mode.)
9.2
Select lead I, size 3x.
Select 60Hz (or 50 Hz for a 50Hz
unit) on
the QED 6 Defibrillator Analyzer.
9.3
Press RECORDER button.
9.4
Press RECORDER button to
stop printing.
Verify that the waveform amplitude on the strip chart is
less than 1.5 mm.
Record your results on the Maintenance Tests Checklist.
20
o
o
o
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M Series Service Manual
10.0 Heart Rate Alarm Test
Tools Needed:
QED 6 Defibrillator Analyzer
10.1
Do this...
Verify that...
Turn the selector switch to
MONITOR mode.
The monitor screen displays the Lead II message and
the waveform for NSR ECG at 120 BPM +/- 2
.
o
o
o
(For AED units, turn the selector
switch to ON and select Manual
mode.)
Pass Fail/
NA
Connect the ECG leads to the
QED 6 Defibrillator Analyzer. Set
the QED 6 Analyzer to 120 BPM
and the defibrillator to lead II.
10.2
Press ALARMS button.
The monitor displays the alarm menu.
o
o
o
10.3
Press SELECT PARAM softkey
until ECG HR displays.
The cursor scrolls through parameters.
o
o
o
10.4
Press INC> for state.
The cursor scrolls through ENABLE, AUTO and
DISABLE.
o
o
o
10.5
Press DEC>for state.
The cursor scrolls through ENABLE, DISABLE, AND
AUTO.
o
o
o
10.6
Press INC> until ENABLE
displays.
ENABLE appears.
o
o
o
10.7
Press ENTER softkey, then press
the NEXT FIELD softkey to
select the heart rate limit.
The cursor scrolls to Low field. Press RETURN softkey
to exit out of Alarm Menu.
o
o
o
10.8
Press ALARM SUSPEND
button.
No alarm sounds.
o
o
o
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M Series Service Manual
Do this...
Verify that...
Pass Fail/
NA
10.9
Remove an EEG lead wire from
the QED 6 analyzer.
The alarm symbol flashes and the heart symbol stops
flashing. The ECG LEAD OFF alarm tone sounds.
Recorder prints a stripchart showing a low heart rate, if
enabled.
o
o
o
10.10
Reattach ECG Lead wire to the
QED 6 Analyzer and hold the
ALARM SUSPEND button on
unit for 4 seconds.
The unit displays the alarm symbol with an “X” through
it.
o
o
o
10.11
Press the ALARM SUSPEND
button to enable the alarms.
The alarm symbol does not have an “X” through it.
o
o
o
10.12
Set QED 6 Analyzer to 160 BPM
or higher.
The Heart Rate Value is highlighted, the alarm tone
sounds, and the alarm and the heart symbol both flash.
o
o
o
10.13
Press the ALARM SUSPEND
button on the M Series unit.
The alarm is suspended for 90 seconds. The unit
displays the alarm symbol with an “X” through it, and
the heart symbol flashes with each QRS wave.
o
o
o
o
o
o
The heart symbol flashes with each QRS wave.
Note: Software version 35.00-36.XX, the alarm is
suspended until the alarm button is press again, or the
fault is cleared.
10.14
Press and hold ALARM
SUSPEND for 4 seconds to
disable alarms.
Record your results on the Maintenance Tests Checklist.
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M Series Service Manual
11.0 Defibrillator Self Test
WARNING!
SHOCK HAZARD!
TAKE THE NECESSARY PRECAUTIONS TO GUARD AGAINST SHOCK OR INJURY
BEFORE YOU START CONDUCTING THE DEFIBRILLATOR TESTS.
Keep hands and all other objects clear of the multi-function cable connections and defibrillator
analyzer when discharging the defibrillator.
Before you discharge the defibrillator, warn everyone near the equipment to STAND CLEAR.
CAUTION
Tools Needed:
Do NOT internally discharge the unit more than 3 times in 1 minute. Note that the rapid repetition of internal discharges at
more than 30 Joules may damage the unit.
• MFC Test Port Connector 1004-0053-99 with universal cable.
• MFC Test Adaptor Connector (Fluke Biomedical Part Number 3010-0378 or equivalent).
• QED 6 Defibrillator Analyzer.
• ECG Cable.
• Stop watch.
Test Setup:
Ensure the unit is turned off
Ensure the ECG cable is connected to the unit and analyzer.
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M Series Service Manual
NOTE: The universal cable should not be connected to any equipment at the beginning of this test.
11.1
Do this...
Verify that...
Pass/
Fail
Turn the selector switch to DEFIB
mode.
The unit displays the CHECK PADS/POOR PAD
CONTACT message.
o
o
(For AED units, turn the selector
switch to ON and select Manual
mode.)
Set leads to PADS.
11.2
Connect the universal cable to the
MFC test port.
DEFIB PAD SHORT message displays.
o
o
11.3
Select energy level of 100J and
press the CHARGE button.
The charge time is greater than 2 seconds and less than
10 seconds and the unit displays the message, SELECT
30J FOR TEST.
o
o
11.4
Press the SHOCK button.
The unit does not discharge. The unit displays the
message, DEFIB PAD SHORT.
o
o
11.5
Set energy level to 30J.
The unit discharges internally.
o
o
11.6
Press the CHARGE button.
The unit charges to 30J and displays message, DEFIB
30J READY. The charge ready tone sounds.
o
o
11.7
Press and hold SHOCK button.
The unit discharges and displays the number of joules
delivered and the TEST OK message. For example, the
message at the top of the printed strip chart would read
as follows: 30 JOULES TEST OK. TEST_CUR=10-14A
DEFIB_IMPED=0.
o
o
The impedance value may range from 0 to 5 ohms.
If configured, the recorder prints a strip chart.
Record your results on the Maintenance Tests Checklist.
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M Series Service Manual
12.0 Synchronized Cardioversion Test
Tools Needed:
QED 6 Defibrillator Analyzer.
Test Setup:
Connect the universal cable via the adapter (D.N.I #3010-0378) to the defibrillator analyzer.
Select Sync on analyzer and set ECG on analyzer to 60 -120 BPM.
Do this...
Verify that...
12.1
Press LEAD button to select
PADS and Size X1.
12.2
Press the SYNC softkey on the
defibrillator. Enter synchronized
cardioversion timing test mode on
the defibrillator analyzer.
Sync markers appear on display.
Select 200J (360J for Monophasic
units), and then press the
CHARGE button. When the
SHOCK button lights, press and
hold the SHOCK button.
On the analyzer display, the R-wave to shock delay is
less than60 milliseconds.
12.3
Pass/
Fail
o
o
Note: Sync markers display on the monitor. The sync
marker appears as a down arrow over the ECG
R-wave peaks on strip chart and display.
Record your results on the Maintenance Tests Checklist.
25
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o
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M Series Service Manual
13.0 Shock Test
Tools Needed:
QED 6 Defibrillator Analyzer, Stop Watch.
Test Setup:
Connect the universal cable via the adapter (D.N.I #3010-0378) to the defibrillator analyzer.
Ensure that a fully charged battery is installed in the unit.
NOTE If your M Series AED does not have manual override capability, do not perform this test.
Do this...
13.1
Verify that...
Pass/Fail/
NA
Turn the selector switch to
DEFIB mode.
(For AED units, turn the selector
switch to ON and select Manual
mode.)
13.2
Press the ENERGY SELECT
down arrow until 5J displays.
The unit displays DEFIB 5J SEL.
o
o
o
13.3
Press the CHARGE button. Wait
for the SHOCK button to
illuminate.
The unit displays DEFIB 5J RDY.
o
o
o
13.4
Press the SHOCK button.
The unit discharges 3J-5J into the simulator.
o
o
o
Note: The displayed rhythm may change shape for 30
seconds before it returns to an original rhythm.
This is caused by the operation of the adaptive
bandwidth defibrillator recovery circuit.)
13.5
Press the ENERGY SELECT up
arrow until the unit displays 50J.
The unit displays the message, DEFIB 50J SEL.
o
o
o
13.6
Press the CHARGE button. Wait
for the SHOCK button to
illuminate.
The unit displays the message, DEFIB 50J RDY.
o
o
o
13.7
Press the SHOCK button.
The unit discharges 41J-55J (monophasic 43J-57J)
into the simulator.
o
o
o
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M Series Service Manual
Do this...
Verify that...
13.8
Press the ENERGY SELECT up
arrow until the unit displays 100J.
The unit displays the message, DEFIB 100J SEL.
o
o
o
13.9
Press the CHARGE button. Wait
for the SHOCK button to
illuminate.
The unit displays the message, DEFIB 100J RDY.
o
o
o
13.10
Press the SHOCK button.
The unit discharges 83J-122J (monophasic 85J-115J)
into the simulator.
o
o
o
13.11
Press the ENERGY SELECT up
arrow until the unit displays 200J.
The unit displays the message, DEFIB 200J SEL.
o
o
o
13.12
Press the CHARGE button. Wait
for the SHOCK button to
illuminate.
The unit displays the message, DEFIB 200J RDY.
o
o
o
13.13
Press the SHOCK button.
The unit discharges 182J-247J (monophasic 170J230J) into the simulator.
o
o
o
13.14
(Monophasic Units) Press the
ENERGY SELECT up arrow unit
the unit displays 300J.
The unit displays the message, DEFIB 300J SEL.
o
o
o
13.15
Press the CHARGE button. Wait
for the SHOCK button to
illuminate.
The unit displays the message, DEFIB 300J RDY.
o
o
o
13.16
Press the SHOCK button.
The unit discharges 255J-345J into the simulator.
o
o
o
13.17
(Monophasic Units) Press the
ENERGY SELECT up arrow unit
the unit displays 360J.
The unit displays the message, DEFIB 360J SEL.
o
o
o
13.18
Press the CHARGE button. Wait
for the SHOCK button to
illuminate.
The unit displays the message, DEFIB 360J RDY.
o
o
o
13.19
Press the SHOCK button.
The unit discharges 306J-414J into the simulator.
o
o
o
27
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NA
Page 38
M Series Service Manual
Do this...
Verify that...
Pass/Fail/
NA
13.20
(Biphasic Units) Press the
CHARGE button and start timing
with a stopwatch. Stop timing
when the SHOCK button lights.
The charge time is between 3-6 seconds.
o
o
o
13.21
Press the SHOCK button.
On the strip chart, the Patient Current is between 20-24
Amps, and the Defib Impedance is between 46-54
Ohms.
o
o
o
Note: This will occur if configured to Auto-Generate
Strips on event.
13.22
(Monophasic Units) Press the
CHARGE button and start timing
with a stopwatch. Stop timing
when the SHOCK button
illuminates.
The charge time is between 4-8 seconds.
o
o
o
13.23
Press the SHOCK button.
On the strip chart, the Patient Current is between 20-24
Amps, and the Defib Impedance is between 46-54
Ohms.
o
o
o
o
o
o
Note: This will occur if configured to Auto-Generate
Strips on event.
13.24
(AED units only.) Disconnect the
universal cable from the
analyzer.
The unit will display CHECK PADS, and give anaudio
prompt.if configured for audio.
Record your results on the Maintenance Tests Checklist.
28
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M Series Service Manual
14.0 Summary Report Test
Tools Needed:
QED 6 Defibrillator Analyzer.
Test Setup:
Connect the universal cable to the QED 6 analyzer.
If you are using paddles, place the paddles on the analyzer’s discharge plates.
Do this...
Verify that...
14.1
Press and hold the SUMMARY
softkey for 4 to 8 seconds to
display erase options. Press the
ERASE SUMMARY softkey to
erase any previously stored data
erase any previously stored data.
The unit displays the message, ERASING REPORT.
o
o
14.2
Set selector switch to DEFIB.
Select 200J (360J for
Monophasic) using the ENERGY
SELECT button, and press the
CHARGE button. When charged,
press the SHOCK button to
discharge into the defibrillator
analyzer.
The unit successfully discharges and prints a strip chart.
o
o
14.3
Wait 18 seconds, then press the
Code Marker softkey. Press the
CPR softkey.
The Code Markers appear.
o
o
14.4
Turn the unit off. Wait 10 seconds
and then turn the unit on. Press
the SUMMARY softkey, then
press the PRINT CHART softkey,
then press PRINT ALL.
The summary report prints. The report displays the
correct date, time, 1 shock delivered and Code Marker
event.
o
o
Record your results on the Maintenance Tests Checklist.
29
Pass/
Fail
Page 40
M Series Service Manual
15.0 Advisory Message Test
Tools Needed:
QED 6 Defibrillator Analyzer.
Test Setup:
Connect the universal cable via the adapter (D.N.I #3010-0378).
Attach the M Series to the QED 6 Defibrillator Analyzer.
Do this...
15.1
Verify that...
Pass/
Fail
Turn the selector switch to DEFIB
mode.
(For AED units, turn the selector
switch to ON.)
15.2
Select VF (ventricular fibrillation)
on the QED 6, then press the
ANALYZE button.
The unit displays the following messages:
o
o
ANALYZING ECG.
STAND CLEAR.*
SHOCK ADVISED.*
PRESS SHOCK.*+
*AED’s audio prompts are standard. Advisory audio
prompts are user configurable.
+If configured for auto charge.
15.3
Press the SHOCK button.
The unit discharges.
o
o
15.4
Select the NSR (normal sinus
rhythm) on the simulator, then
press the ANALYZE button.
The unit displays the following messages:
o
o
ANALYZING ECG.
STAND CLEAR.*
NO SHOCK ADVISED.*
*AED’s audio prompts are standard.
Record your results on the Maintenance Tests Checklist.
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M Series Service Manual
16.0 Pacer Test
Tools Needed:
QED 6 Defibrillator Analyzer.
?
NOTE The following tests are to be performed only on M Series units equipped with the optional pacing function.
The pacer output can be measured using an oscilloscope set to DC coupling connected across a load resistor. (See
diagram in column for universal cable connector polarity.) The load resistor is a 100 ohm, 5 watt or greater. The pacer
output is a positive going pulse, 40 +/- 2 ms duration with an amplitude of 0.1 volt per milliamp of selected output
(e.g., 40 milliamps of selected output has an amplitude of 4 +/- 0.5 volts the specified tolerance displayed on the
oscilloscope).
If an external non-invasive pacer analyzer is being used, then follow the manufacturer’s guidelines for measuring the
frequency (ppm), output (mA) and the pulse width measured in milliseconds. Note that the analyzer pace load resistor
must be less than 250 ohms.
Test Setup:
Connect the universal cable from the M Series to the QED 6 Defibrillator Analyzer.
Do this...
Verify that...
16.1
Turn the Main Selector knob of
the unit to Pacer Mode.Set the
PACER OUTPUT to 14 mA and
disconnect MFC connector from
the QED 6 analyzer.
The unit displays the CHECK PADS and POOR PAD
CONTACT messages displays, and the pace alarm is
active.
o
o
16.2
Reconnect the universal cable to
the QED 6 analyzer. Press Clear
Pace Alarm softkey.
CHECK PADS and POOR PAD CONTACT message
disappears. The pace alarm is cleared.
o
o
16.3
Set rate to 180 ppm; output to
0mA.
No output appears on the QED 6 analyzer.
o
o
16.4
Increase the output to 40mA.
Output on the QED 6 analyzer is 40mA +/- 5mA.
o
o
16.5
Increase the output to 120mA.
Output on the QED 6 analyzer is 120mA +/- 6mA.
o
o
31
Pass/
Fail
Page 42
M Series Service Manual
Do this...
Verify that...
Pass/
Fail
16.6
Increase the output to 140mA.
Output on the QED 6 analyzer is 140mA +/- 7 mA.
o
o
16.7
Check the pulse width.
Pulse width is 40mS +/-2mS.
o
o
16.8
Decrease the output to 60mA.
Pacer rate on QED 6 analyzer is 29-31 ppm.
o
o
Decrease the rate to 30ppm.
16.9
Increase the rate to 180ppm.
Pacer rate on QED 6 analyzer is 177-183 ppm.
o
o
16.10
Connect the ECG cable to the
M Series and QED 6 analyzer.
Select the ECG at 60 BPM on the
QED 6 analyzer.
The unit displays ECG at 60 BPM with no stimulus
markers.
o
o
16.11
Press the Async Pace softkey.
The unit displays ECG at 60 BPM with stimulus markers,
and displays the Async pace message.
o
o
16.12
Turn off the QED 6 analyzer. Set
Pacer Rate to 100ppm. Press the
RECORDER ON button.
The unit displays pace stimulus markers every 15mm +/1mm.
o
o
16.13
Press and hold 4:1 button.
The unit displays pace stimulus markers every 60 mm+/1.5 mm.
o
o
Record your results on the Maintenance Tests Checklist.
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M Series Service Manual
17.0 SpO 2 Monitor Test for SpO 2 Option
Tools Needed:
• MasimoReusable Sensor.
• Masimo Patient Cable
• Fluke Index Series 2 SpO2 Simulator.
Test Setup:
Connect the universal cable to the MFC test plug.
DO NOT connect the ECG cable to the simulator.
Connect the Masimo Patient Cable and attach the Masimo sensor to the patient cable.
Connect the Masimo sensor to the finger simulation post.
Place a fully charged battery into the battery well or connect to ac power (dc power, if equipped).
Ensure that the SpO2 Simulator is off.
17.1
Do this...
Verify that...
Pass/
Fail
Turn the selector switch to
MONITOR.
The SpO2 saturation percentage appears as a dashed
line on the monitor.
o
o
The unit displays the SpO2 PULSE SEARCH message.
o
o
The SpO2 reading of 98 +/- 1% appears on the E Series
monitor.
o
o
(For AED units, turn the selector
switch to ON and select Manual
mode.)
17.2
Wait ten seconds.
Turn on the SpO2 simulator.
Press the SIM softkey on the
Index SpO2 Simulator, then press
the MAN softkey.
17.3
Press the 02+ or 02- softkey of
the simulator until the SpO2
output is at 98%.
Note: You may need to wait up to 2 minutes for the
information to appear on the ZOLL display.
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M Series Service Manual
17.4
Do this...
Verify that...
Using the Index SpO2 Simulator,
press the BPM+ or BPM- softkey
until the heart rate is 230 BPM.
The SpO2 simulator screen displays an SpO2 rate of 230
BPM.
Pass/
Fail
o
o
o
o
o
o
o
o
o
o
Note that you may need to wait up to 2 minutes for the
information to appear on the ZOLL display.
The M Series monitor displays an SpO2 saturation of 96100%.
The M Series monitor displays a heart rate of 226-234
BPM.
17.5
17.6
17.7
Using the Index SpO2 Simulator,
press the BPM- softkey until the
heart rate is 50 BPM.
The SpO2 simulator screen displays an SpO2 saturation
of 96-100%.
The M Series monitor displays a heart rate of 46-54
BPM.
Using the Index SpO2 Simulator,
press the 02+ softkey until the
SpO2 output is at 72%.
The SpO2 simulator screen displays an SpO2 saturation
of 70-74%.
Press Wave 2 softkey.
Plethysmographic waveform appears on the ZOLL
display.
o
o
Select the SpO2 waveform.
The M Series monitor displays a heart rate of 46-54
BPM.
For CCT units: Press the Traces
softkey, and then select SET
TRACE 2, and press Enter.
Select SPO2, press Enter.
17.8
Press RECORDER.
The plethysmographic waveform prints on the strip chart
paper.
o
o
17.9
Using the Index SpO2 Simulator,
press the BPM- softkey until the
heart rate is at 230 BPM.
The SpO2 simulator screen displays an SpO2 saturation
o
o
17.10
rate of 70-74%.
The M Series monitor displays a heart rate in the heart
position of
226-234 BPM.
Remove the Masimo patient
cable.
34
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M Series Service Manual
Do this...
Verify that...
Record your results on the Maintenance Tests Checklist.
35
Pass/
Fail
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M Series Service Manual
18.0 EtCO 2 Monitor Test (for EtCO 2 Option)
Tools Needed:
Novametrix Capnostat Simulator Tb 1265/7100.
Test Setup:
Install the battery
On the Novatrix Simulator, set the folling
Set inspired CO2 to OFF
Set% CO2 to 0
Set Sensor Location to ZERO CELL
Set Source Current to NORMAL
Set CO2 mode to CONTINUOUS. Set Temperature to NORMAL
Attach simulator to the unit.
Do this...
18.1
Turn the selector switch to
MONITOR mode (For AED units,
turn the selector switch to ON,
and select Manual mode.) Attach
the EtCO2 simulator to the M
Series input connection.
Verify that...
Pass/
Fail
CO2 SENSO WARMUP message displays.
o o
Note: You may need to wait up to 5 minutes for the
warm-up message to disappear.
18.2
Perfom manual zeroing. Press
PARAM softkey, select EtCO2,
press ENTER, and then press
ZERO softkey, then Enter.
Verify “ZEROING CO2” Adapter” is displayed, then
changes to “ZERO DONE” when complete.
o o
18.3
On the Novametrix SImulator, set
SENSOR LOCATION to AA
CELL, set% CO2 to 10% CO2
mode to RESPIRATION.
Verify the EtCO2 reading of 74-84mmHg appears on the
M Series display.
o o
Note that you may need to wait up to 10 seconds for the
unit to stabilize.
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M Series Service Manual
18.4
Do this...
Verify that...
Pass/
Fail
On the Novametrix simulator,
set% CO2 to 5%.
The EtCO2 reading of 34-42mmHg displays on the M
Series monitor. The Respiration Rate (RR) of 22-24
displays on the M Series monitor.
o o
Note that you may need to wait up to 10 seconds for the
unit to stabilize.
18.5
Press WAVE 2 softkey
Verify the EtCO2 waveform displays.
o o
Verify the EtCO2 waveform prints
o o
For CCT units: Press the Trace
softkey, select SET TRACE 2,
and press Enter. Select EtCO2,
press Enter.
18.6
Press the RECORDER button.
Note that the CO2 waveform is displayed and printed at
12.5 millimeters per second scale.
Record your results on the Maintenance Tests Checklist.
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19.0 Temperature Test
Tools Needed:
Test Setup:
IBP Temp Simulator 9100-0402-TF (or equivalent1)
None
Do this...
Verify that...
Pass/Fail/
NA
19.1
Connect the 2-channel Y adapter
to the temperature connector
(T1/T2) on the M Series CCT
Unit.
19.2
Connectt the Temperature Probe
Simulator cables to the 2-channel
Y adapter.
19.3
On the Temperature Simulator,
set the T1 temperature channel
to 59.2 degrees F(15 degrees C).
Verify that the value displayed for the T1 temperature
channel betwwen 59.0 degrees to 59.4 degrees F (14.9
to 15.1 degrees C).
o o o
19.4
On the Temperature Simulator,
set the T1 temperature channel
to 112.8 degrees F (45 degrees
C).
Verify that the value displayed for the T1 temperature
channel betwwen 112.6 degrees to 112.8 degrees F
(44.9 to 45.1 degrees C).
o o o
19.5
On the Temperature Simulator,
set the T2 temperature channel
to 59.2 degrees F(15 degrees C).
Verify that the value displayed for the T2 temperature
channel betwwen 59.0 degrees to 59.4 degrees F(14.9
to 15.1 degrees C).
o o o
19.6
On the Temperature Simulator,
set the T2 temperature channel
to 112.8 degrees F (45 degrees
C).
Verify that the value displayed for the T2 temperature
channel betwwen 112.6 degrees to 112.8 degrees F
(44.9 to 45.1 degrees C).
o o o
Record your results on the Maintenance Test Checklist.
1.
If you are using a Temperature Simulator that does have the same setting above, use the closest value available. Verify the
display temperature value is within 0.2 F or 0.1 C of the simulator setting
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20.0 IBP Monitoring Test
Tools Needed:
DNI Nevada 214B Patient Simulator with M Series interface cables, FOGG Transducer Simulator
Test Setup:
Set the BP output sensitivity scale to 5 uV/V/mmHg on the Patient Simulator
Connect the Patient Simulator to the IBP connector on the M Series CCT unit
Do this...
Verify that...
Pass/Fail/
NA
20.1
Set the selector switch on the M
Series CCT unit to MONITOR and
press the PARAM softkey on the
front panel to display the
Parameters menu.
Verify the parameter menu displayed.
o
o
o
20.2
Select the IBP option and press the
Enter softkey.
Verify the unit displays the IBP menu.
o
o
o
20.3
Press the Label softkey to display
the IBP Label menu.
Verify the unit displays the IBP label menu.
o
o
o
20.4
Select the Label P1 option and
press the Enter softkey.
Verify the M Series CCT unit displays the Label Options
menu.
o
o
o
20.5
Select the P1 option and press the
Enter softkey.
Verify the unit assigns the P1 label to the first pressure
channel (P1) and returns to the IBP menu.
o
o
o
20.6
Press the Label softkey to display
the IBP Label menu.
Verify the unit displays the IBP Label menu.
o
o
o
20.7
Select the Label P2 option and
press the Enter softkey.
Verify the M Series CCT unit display the Label Options
menu.
o
o
o
20.8
Select the ART option and press
the Enter sofkey.
Verify the unit assigns the ART label to the second
pressure channel (P2) and return to the IBP menu.
Verify that the M Series CCT unit displays advisory
messages to zero the pressure channels.
o
o
o
o
o
o
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Do this...
20.9
On the Patient Simulator, set BP
channel 1 to an atmospheric
pressure of 0 mmHg (waveform
10) and press EXECUTE. Set BP
channel 2 to duplicate BP channel
1 (waveform 22) and press
EXECUTE.
20.10
On the unit go to the IBP menu
(press the Param softkey and
select the IBP option), then press
the Zero softkey to display the Zero
menu, select the Zero Both option
and press the Enter softkey.
Verify that...
Pass/Fail/
NA
Verify the unit zeroes both pressure channels and
displays the P1 ZEROED and P2 ZEROED messages
within 15 seconds.
o
o
o
Verify that the values displayed for the P1 and ART
pressure channels are accurate within ±3 mmHg of
atmospheric pressure (that is, 0 mmHg):
o
o
o
o
o
o
systolic pressure: -3 to 3 mmHg
diastolic pressure: -3 to 3 mmHg
mean pressure: -3 to 3 mmHg
Note: The unit displays pressure values for each pressure
channel within 15 seconds.
20.11
On the Patient Simulator, set to an
arterial pressure of 120/80 mmHg
(waveform 00) and press
EXECUTE.
Verify the values displayed for the P1 and ART pressure
channels:
systolic pressure: 116 - 124 mmHg
diastolic pressure: 77 - 83 mmHg
mean pressure: 90 - 98 mmHg
Note: The unit displays pressure values for each pressure
channel within 15 seconds.
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Do this...
Verify that...
Pass/Fail/
NA
20.12
Zero the IBP channels (see step
20.9).
20.13
Press the Traces softkey.
Verify the unit displays the Traces menu.
o
o
o
20.14
Select the Set Trace 2 option and
press the Enter softkey.
Verify the M Series CCT unit displays the Trace Options
menu.
o
o
o
20.15
Verify the M Series CCT unit
displays the Trace Options menu.
Verify the unit assigns the P1 waveform to the second
trace display area and returns to the main menu.
o
o
o
20.16
Press the Traces softkey.
Verify the unit displays the Traces menu.
o
o
o
20.17
Select the Set Trace 3 option and
press the Enter softkey.
Verify the unit displays the Trace Options menu.
o
o
o
20.18
Select the ART option and press
the Enter softkey.
Verify the unit assigns the ART waveform to the third trace
display area and returns to the main menu.
o
o
o
20.19
Go to the IBP menu (press the
Param softkey and select the IBP
option).
Verify the unit displays the IBP menu.
o
o
o
20.20
Press the Range softkey.
Verify the unit displays the IBP Range menu.
o
o
o
20.21
Select the P1 Range option and
press the Enter softkey.
Verify the unit displays the Range Options menu.
o
o
o
20.22
Select the 0-30 mmHg option and
press the Enter softkey.
Verify the unit displays the P1 waveform on a 0-30 mmHg
scale and returns to the IBP menu.
o
o
o
20.23
Press the Range softkey.
Verify the unit displays the IBP Range menu.
o
o
o
20.24
Select the ART option and press
the Enter softkey.
Verify the unit displays the Range Options menu.
o
o
o
20.25
Select the 0-30 mmHg option and
press the Enter softkey.
Verify the unit displays the ART waveform on a 0-30
mmHg scale and returns to the IBP menu.
o
o
o
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Do this...
20.26
On the Patient Simulator, set BP
channel 1 to a static pressure of 20
mmHg (waveform 11) and press
EXECUTE.
20.27
Press the RECORDER button.
20.28
Set the input and output resistance
to 350 ohms on the Transducer
Simulator, and set the gain to x10.
Verify that...
Pass/Fail/
NA
Verify that there is no deviation from the baseline greater
than 1 mm for the waveforms printed on stripchart and the
unit displays the waveforms for 20mmHg on the monitor
screen, and prints a stripchart of the traces.
o
o
o
Connect the Transducer Simulator
cable to the P1 connector on the
unit and on the Pressure
Transducer Simulator, set the
pressure polarity to positive, and
select a pressure of 200 mmHg.
20.29
Zero pressure channel 1.
Verify the unit calibrates pressure channel 1 against a
positive pressure of 200 mmHg and displays the P1
ZEROED message.
o
o
o
20.30
On the Pressure Transducer
Simulator, set the pressure polarity
to positive, and select a pressure
of 500 mmHg.
Verify that the value displayed for the P1 pressure
channel is in the range of 291 - 300 mmHg. (Note: value
will be displayed within 15 seconds.)
o
o
o
20.31
Connect the simulator cable to the
P2 connector on the unit. On the
Pressure Transducer Simulator, set
the pressure polarity to positive,
and select a pressure of 200
mmHg.
20.32
Zero ART channel.
Verify the unit calibrates pressure channel 1 against a
positive pressure of 200 mmHg and displays the ART
ZEROED message.
o
o
o
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Do this...
Verify that...
Pass/Fail/
NA
20.33
On the Pressure Transducer
Simulator, set the pressure polarity
to positive, and select a pressure
of 500 mmHg.
On the unit, verify that the value displayed for the ART P2
pressure channel is in the range of 291 - 300 mmHg.
(Note: value will be displayed within 15 seconds.)
o
o
o
20.34
Connect the Pressure Transducer
Simulator to the first IBP channel
connector (P1). On the Pressure
Transducer Simulator, set the
pressure polarity to negative, and
select a pressure of -200 mmHg.
20.35
Zero the pressure channel.
The unit calibrates the pressure channel against a
negative pressure of -200 mmHg and displays the P1
ZEROED message.
o
o
o
20.36
On the Pressure Transducer
Simulator, select a negative
pressure of -250 mmHg.
On the unit, verify that the value displayed for the P1
pressure channel is in the range of -47 to -50 mmHg.
(Note: value will be displayed within 15 seconds.)
o
o
o
20.37
Connect the Pressure Transducer
Simulator to the second IBP
channel connector (P2). On the
Pressure Transducer Simulator, set
the pressure polarity to negative,
and select a pressure of -200
mmHg.
20.38
Zero the pressure channel.
The M Series CCT unit calibrates the pressure channel
against a negative pressure of -200 mmHg and displays
the P2 ZEROED message.
o
o
o
20.39
On the Pressure Transducer
Simulator, select a negative
pressure of -250 mmHg.
Verify that the value displayed for the P2 pressure
channel is in the range of -47 to -50 mmHg. Note: Value
will be displayed within 15 seconds.
o
o
o
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21.0 NIBP Transducer Calibration Test
The NIBP module’s pressure transducers are factory-calibrated prior to shipment. However, you can perform a twopoint calibration procedure periodically to ensure accurate pressure measurements.
This procedure is optional at 6 months, but should be performed annually or every 10,000 readings, whichever comes
first.
Tools Needed:
Fluke NIBP simulator (the values and procedure that we provide are specific to the BP Pump 2).
Test Setup:
Connect the Analyzer’s simulator hose to the NIBP connector on the M Series unit.
Configure the NIBP Analyzer to simulate cuff pressure. For example, on the Fluke Biomedical BP Pump:
Press the MODE button three (3) times to go into Tests mode.
Press the SELECT button once to access the Pressure Simulator screen.
These instructions apply to the Fluke Biomedical BP Pump; for equivalent devices, follow the manufacturer’s
instructions.
Make sure the ECG cable is not connected to the M Series unit.
If the SpO2 option is installed, make sure that the Masimo cable is NOT connected to the M Series unit.
21.1
Do this...
Verify that...
Pass/
Fail
Turn the Selector Switch to OFF.
The M Series unit powers on in the NIBP Service Mode.
o o
After 10 seconds, press and hold
the fourth softkey from the left and
turn the Selector Switch to
MONITOR (for AED units, turn the
Selector switch to ON).
.
21.2
Press the NIBP Calib softkey.
The M Series unit displays the NIBP Transducer
Calibration Screen.
o
o
21.3
On the NIBP simulator set the
pressure parameter to 0 mmHg.
The NIBP Simulator displays a pressure reading of 0
mmHg.
o
o
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21.4
Do this...
Verify that...
On the M Series unit, press the
Set Low softkey to calibrate the
transducer to a 0 mmHg pressure
reading.
The NIBP pressure transducer registers its voltage
output at a known pressure of 0 mmHg. The field
adjacent to the 0 mmHg value changes to PASS.
Pass/
Fail
o
o
Note: If the M Series unit displays a FAIL reading,
verify the NIBP simulator’s pressure setting and
connection to the M Series and repeat the step.
21.5
On the NIBP Simulator, set the
pressure parameter to
250 mmHg, and then press Start
on the NIBP simulator.
The NIBP Simulator displays a pressure reading of 250
mmHg.
o
o
21.6
On the M Series unit, press the
Set High softkey to calibrate the
transducer to a 250 mmHg
pressure reading.
The NIBP pressure transducer registers its voltage
output at a known pressure of 250 mmHg. The field
adjacent to the 250 mmHg value changes to PASS.
o
o
Note: If the M Series unit displays a FAIL reading,
verify the NIBP Analyzer’s pressure setting and
connection to the M Series and repeat the step.
21.7
On the NIBP simulator, set the
pressure parameter to stimulate a
different cuff pressure (for
example, 205 mmHg).
The NIBP simulator displays the specified pressure
reading.
o
o
21.8
On the M Series unit, press the
Read Cuff softkey when the
simulator’s Measured screen
reaches 205.
The value that the M Series unit displays is accurate
within +/- 3mmHg of the pressure parameter value set on
the NIBP simulator.
o
o
21.9
On the M Series unit, press the
EXIT softkey twice.
The M Series returns to the main NIBP Service Mode
screen, then to normal Monitor mode operation.
o
o
Record your results on the Maintenance Tests Checklist.
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Warning!
NIBP transducer calibration can affect clinical readings of the NIBP parameter. Ensure that the NIBP Transducer Calibration
procedure is performed correctly, followed by an NIBP Monitor Test for verify proper operation.
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22.0 NIBP Monitor Test
The NIBP monitor test verifies the repeatability of the systolic, diastolic, and mean blood pressure measurements, as
well as the patient pulse rate calculation.
Tools Needed:
Fluke NIBP simulator (the values and procedure that we provide are specific to the BP Pump 2).
Note: The primary propose of an NIBP simulator is to reproduce a pressure profile similar to a live patient to be
used for testing t h e repeatability and functionality of the system. There are many different NIBP simulators on
the market, each manufacturer uses a different method to develop their algorithm. Consequently, readings from
different simulators may vary. To test for repeatability, you should first establish the offset1 of your simulator. The
offset value should then be used to determine the expected values. NIBP simulators cannot be used as a source for
testing the accuracy of the non-invasive blood pressure measurements of devices such as the ZOLL M Series
monitor/defibrillator.
Test Setup:
Connect the Analyzer’s simulator hose to the NIBP connector on the M Series unit.
Set the following parameters on the NIBP Analyzer:2
Table 1-1:
Parameter
Value
Systolic pressure
120 mmHg
Diastolic pressure
80 mmHg
Mean pressure
93 mmHg3
Heart pressure
80 bpm
Make sure the ECG cable is not connected to the M Series unit.
If the SpO2 option is installed, make sure that the Masimo cable is NOT connected to the M Series unit.
1
NIBP Simulators may produce a reading on the NIBP monitor that is shifted from the simulator's setting. The offset value must be
established based on a statistical sample of monitors and readings. Please contact ZOLL Technical Support if you require assistance establishing the offset of the simulator and test set-up that you are utilizing.
2
If you are using the Fluke® BiomedicalCuftlink, you must change the shift value of the Blood Pressure Envelope to +3 on the Pressure Curve Adjust Menu.
3
Not all simulators have a setting of 93mmHg. Check the simulators user's manual for recommendations.
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Do this...
22.1
Verify that...
Pass/
Fail
Turn the selector switch to
MONITOR mode.
(For AED units, turn the selector
switch to ON and select Manual
mode.)
22.2
Ensure that the LEADS
parameters is set to PADS
(default).
The M Series unit displays PADS in the Lead selection
field on the monitor.
o
o
Press the NIBP button on the
E Series front panel.
The M Series displays the following measurements:
o
o
Press the SUMMARY softkey,
then press the TREND softkey,
followed by the NIBP Trend
softkey.
The M Series unit displays a summary of the NIBP
measurements, including the pulse rate reading (in the
range of 77 - 83 bpm).
o
o
If necessary, press the LEADS
button to cycle through the values
to select PADS.
22.3
22.4
• Systolic pressure (115 - 125 mmHg)
• Diastolic pressure (75 - 85 mmHg)
• Mean pressure (88 - 98 mmHg).
Record your results on the Maintenance Tests Checklist.
4
These values only apply for test set-ups utilizing the BP Pump 2 Simulator. Variations of the test set-up or different simulators may
produce readings outside the provided values and will require end-user facility to establish the appropriate offset and tolerances.
Please contact ZOLL Technical Support i f you require assistance establishing the offset o f y o u r simulator and test set-up.
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23.0 NIBP Volume Leak Test with Fluke Biomedical NIBP Analyzer
The volume leak test verifies the integrity of the pneumatic system on the NIBP module. This test is optional at 6
months, but should be performed annually or every 10,000 readings, whichever comes first.
Tools Needed:
Fluke NIBP simulator (the values and procedure that we provide are specific to the BP Pump 2).
Test Setup:
Connect the Analyzer’s simulator hose to the NIBP connector on the M Series unit.
Configure the NIBP Analyzer for the volume leak test. For example, on the Fluke Biomedical BP Pump:
• Press the MODE button three times to go into Tests mode.
• Press the SELECT button twice to access the volume leak test.
Make sure the ECG cable is not connected to the M Series unit.
If the SpO2 option is installed, make sure that the Masimo cable is NOT connected to the M Series unit.
23.1
Do this...
Verify that...
Turn the Selector Switch to OFF.
The M Series unit powers on in the NIBP Service Mode.
Pass/
Fail
o o
After 10 seconds, press and hold
the fourth softkey from the left and
turn the Selector Switch to
MONITOR (For AED units, turn
the selector switch to ON).
23.2
Press the Leak Test softkey.
The M Series unit displays the NIBP Leak Test Screen.
o
o
23.3
On the NIBP simulator, set the
pressure parameter to 200
mmHg.
The NIBP simulator displays a pressure reading of 200
mmHg.
o
o
23.4
On the M Series unit, press the
Close Valves softkey.
The Valves status changes from OPEN to CLOSED.
o
o
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23.5
Do this...
Verify that...
Press the START TEST softkey
within 30 seconds after closing
the valve.
After approximately 1 minutes, a number appears in the
upper middle area of the NIBP simulator display.
Note: This test takes
• Displays a Volume Leak reading <5,5 then the M
Series unit has passed the test.
• Displays a Volume Leak reading >5,6 then the M
Series unit has failed the test.
• Displays no Volume Leak reading, but maintains a
stable pressure reading at or above 200 mmHg, then
the M Series unit has passed the test; there is no
volume leak.
approximately 3 minutes.
Pass/
Fail
o
o
If the simulator:
In addition, the M Series unit displays the simulator’s
pressure reading in the “Cuff Pressure” field.
After approximately 3 minutes, the valves open on the M
Series unit.
23.6
On the NIBP Analyzer, press the
STOP TEST softkey.
The NIBP simulator terminates the Volume Leak Test.
o
o
23.7
On the M Series unit, press the
EXIT softkey twice.
The M Series unit returns to the main NIBP Service
Mode screen, then to normal Monitor mode operation.
o
o
Record your results on the Maintenance Tests Checklist.
5
If you are using the Fluke® BiomedicalCuftllnk Simulator,the volume leak reading should be <10.
6
If you are using the Fluke® BiomedicalCuftllnk Simulator,the volume leak reading for a failure should be >10.
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24.0 Bluetooth Test
Tools Needed:
Test Setup:
USB Bluetooth dongle with driver CD, Bluetooth application software BlueSoleil.
Verify that the M Series unit is configured as follows: Bluetooth INSTALLED, and Baud Rate set to 115200 or 38400.
Do this...
Verify that...
24.1
Power up the M Series unit while
pressing in and holding the leftmost softkey.
The M Series unit displays the System Utilities Menu.
o
o
24.2
Insert a PCMCIA card containing
data into the card reader.
24.3
Press the UPLOAD CARD
softkey, then press the softkey
UPLOAD CARD.
Verify that the Bluetooth LED is on and displays a green
light.
o
o
24.4
Press the SEND softkey.
24.5
Double click on the HyperTerminal
shortcut (BT115200) from the
desktop.
Note: If setting up Hyperterminal
for the first time set COM
PORT programmed for
Bluetooth adapter,
115200bps, 8, N, 1, N
24.6
Start Bluetooth Utility software
(Blue Soleil) on the computer.
24.7
In the IVT Corporation Blue Soleil
window under “View”, select
refresh devices.
51
Pass/
Fail
Page 62
M Series Service Manual
Do this...
24.8
Find the unit under test Serial
Number and double click on it.
24.9
Click on the Serial Port Icon that is
highlighted at the bottom of the
window
Verify that...
Pass/
Fail
Verify the following:
At the bottom of the window it states Connected,
The file transfer window pops up and the file upload
progress bar goes to 100%.
The unit displays the file upload message, Card
Uploaded.
Record your results on the Maintenance Tests Checklist.
52
o
o
o
o
o
o
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M Series Service Manual
•
Chapter 2
Troubleshooting
Overview
This chapter describes the most common technical problems that biomedical technicians experience when checking
the M Series during routine maintenance or when there is a malfunction of the unit. It also contains a list of error
messages that users may see if the unit is not operating properly.
This chapter contains the following:
• Troubleshooting tables for ECG Leads Off Messages and Monitor Displays
• Zoll M Series Error Messages
If the problems you encounter are not listed below, call ZOLL Medical Corporation’s Technical Service Department
for further assistance. (See page vii for contact information.)
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Troubleshooting
The following tables show the most common troubleshooting issues and their solutions.
First, attempt to solve the problem with “Recommended User Action.” If these steps do not solve the problem, follow
the steps listed in the “Recommended Technical Action” column.
Reported Problem
Recommended User Action
Recommended Technical Action
ECG LEAD OFF message
displays.
(3, 5, 12 lead cable)
• Check preparation of ECG electrode site by
• Try to reproduce the problem using
•
•
•
•
cleaning the site, lightly abrading the patient’s skin
and/or clipping the patient’s hair at the electrode
site.
If electrode gels are dry, replace electrodes with
new ones from a freshly opened package.
Verify that all leads are attached.
Set monitor to another lead.
Verify that the electrodes have not exceeded their
expiration date.
•
•
•
•
•
•
•
54
a simulator.
Inspect the ECG cables looking for
corrosion or broken connector pins.
Check the cable for intermittent
connections by flexing the cable at
the yoke and snap connectors.
Check the cable connection to the
defibrillator.
Inspect the ECG input connector
and its pins. Replace it, if
necessary.
Inspect the ECG cable connection
to the system board.
Inspect the system board ECG
shielding.
Remove and replace the system
board.
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M Series Service Manual
Reported Problem
Recommended User Action
V LEADS OFF message
displays.
• If the user is not using V leads, attach V lead
CHECK PADS/POOR PAD
CONTACT message
displays.
• Remove and reinsert PADS connector into the
Recommended Technical Action
connector terminator plug to the cable’s V lead
connector.
• If a V1 lead wire metal snap comes in contact with
the patient’s skin, then the system will show all V
leads as OFF.
• Remove V1 leads and others away from the
patient. Turn off the unit and wait ten seconds
before turning it back on.
•
•
•
•
•
•
universal cable.
Check for damaged defibrillator pads, wires and or
connector.
Check for dried out or expired defibrillator pads.
Clip (not shave) the patient’s hair and wipe pad
contact area dry.
Connect the cable to the test plug. The DEFIB PAD
SHORT message displays to indicate that the cable
is functioning properly.
If the DEFIB PAD SHORT message displays, then
check the connections of the pads to the patient and
to the defibrillator cable.
If the DEFIB PAD SHORT message does not
display, remove the defibrillator from service.
• Connect universal cable to the
•
•
•
•
•
•
55
shorting plug. The DEFIB PAD
SHORT message should display,
when you SELECT PADS. If the
message does not display, then:
Try another universal cable.
Check the cable from the universal
cable connector to the High
Voltage Module.
Check the cable from the High
Voltage Module to the system
board.
Remove and replace the High
Voltage Module.
Remove and replace the system
board.
Call ZOLL Technical Support for
assistance.
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M Series Service Manual
Reported Problem
Recommended User Action
Recommended Technical Action
Flash or arcing under
defibrillator pad.
• Avoiding using alcohol and betadine in and around
• Ensure that wet gel pads are stored
•
•
•
•
•
•
•
Displayed HR not accurate.
No artifact present.
the treatment area because these skin preparations
may lead to increased conductivity and/or bonding
between the electrode’s adhesive and skin.
Check for gel droop. If the gel has leaked out of the
gel treatment area, replace the electrode.
Ensure pads are coupling to the patient’s skin and
connected to the universal cable.
Check for dried out gel on the defibrillator pad.
Clip patient’s excessive hair. Do not shave hair.
Check expiration date. Replace pad if date has
expired.
Do not conduct chest compression through the
pads because the pads could be damaged leading to
the possibility of arcing and skin burns.
Apply the back electrode first. If the front electrode
is already in place when the patient is being
maneuvered for placement on the back, the front
may become partially lifted, possibly causing
arching and skin burns.
Verify heart rate flashes with each QRS on display.
• Change lead selection.
• Change ECG size.
• Reposition ECG electrodes.
56
flat.
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M Series Service Manual
Reported Problem
Displayed HR not accurate;
artifact present.
Recommended User Action
• Reduce or eliminate ECG artifact due to
•
•
•
•
•
•
•
•
electrode or patient cable movement. Route
cables so that they don’t pull on electrodes or
swing excessively.
Ensure patient is motionless.
Check for possible excessive radio frequency
interference.
Verify a good connection of electrodes to the
patient.
Prepare the patient’s skin prior to the electrode
attachment.
Move patient cables away from other electrical
equipment, especially any RFI source.
Ensure ECG cable fits snugly in unit.
Change ECG cable.
Replace/reposition ECG electrodes.
Recommended Technical Action
• Check for contamination on snaps.
Ensure springs are intact.
• Check for intermittent ECG patient
cable or connector wiring.
• Replace ECG input connector.
• Replace ECG connector to the
system board cable.
• Replace system board.
Wandering baseline.
See “Displayed HR not accurate.” above. Note that
in 90% of electrode issues, size and lead changes
don’t help.
Same as above example.
Electronic interference.
Check for possible excessive radio frequency
interference.
Move patient cables away from other electrical
equipment.
• Turn off sources of excessive RFI.
• Move M Series unit away from
57
RFI source.
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M Series Service Manual
Zoll M Series Error Messages
The following is a list of Zoll M Series error messages that may appear on your display. The “User Advisory” column
informs you about an action in progress or provides feedback on a user correctable situation that typically does not
require further technical support. The “Technical Action” column describes what you as a technician can do to correct
the situation. Note that these messages will sometimes overlap part of the waveform display.
First, attempt to clear the message by turning the Selector Switch to OFF for ten seconds, then back to the desired
operating mode. If the fault persists, call ZOLL Technical Service.
User
Advisory
Error Message
Explanation
200J MAX BIPHASIC
User attempted to set defibrillation energy >200J on
Biphasic Unit. No higher energy is available.
50J MAX
Energy < 50J for internal paddles. No higher energy
is available.
ADJUST ECG
Unit is in sync mode and heart rate is < 20 BPM.
Or, QRS size set too small for proper
synchronization.
ANALYSIS HALTED
• ECG analysis halted due to user interaction such
•
•
•
•
ANALYSIS RESTARTED
as:
Lead/size change
Analyze button was pressed again
Impedance fault
Charging error detected in auto defib mode
This is a user prompt issued simultaneously with
ECG TOO LARGE or ECG TOO SMALL. Device
detected ECG signals out of range, automatically
adjusted ECG size and is now restarting its
shockable rhythm analysis sequence.
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Technical Action
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M Series Service Manual
User
Advisory
Error Message
Explanation
AUDIO FAULT 136
Audio DSP hardware error.
Replace audio board.
Replace system
board.Turn unit off and
back on again.
AUDIO NOT
RECORDING
Audio is not recording.
Install PCMCIA card.
Replace system board.
AUDIO QUEUE FULL
Indicates that the audio output queue is full.
Additional voice prompts can't be queued at this
time.
None.
BATT HIGH CURRENT
Battery is charged and battery current is >.1 A or:
Battery is not charged and battery current is > 1.6 A.
Unplug from A/C.
Remove the battery for
20 seconds. Reconnect
all above. If the
problem persists,
replace battery and or
charger.
BATT HIGH VOLTAGE
Battery voltage > 15.5 v.
Replace battery and or
charger
BATT LOW CURRENT
Battery is not charged and battery current is <.35 A.
Replace battery and or
charger.
BATT LOW VOLTAGE
Battery voltage < 9.5 v.
Replace battery and or
charger.
BATT OVERCHARGE
Charger on for > 4 hours.
Replace battery and or
charger.
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Technical Action
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M Series Service Manual
Error Message
Explanation
BRIDGE SHORT
Current higher than expected was detected during the
Biphasic bridge test or immediately following a
discharge.
User
Advisory
Technical Action
Ensure pads/paddles
are used properly.
Attempt to clear the
message by turning the
Selector switch to off
then back to the desired
operating modes.
Replace bridge or high
voltage module.
BRIDGE TEST FAILED
Biphasic module not operating properly while
charging.
Charge again.
Attempt to clear the
message by turning the
Selector switch to OFF,
then back to the desired
operating mode.
Replace bridge or high
voltage module.
CABLE FAULT
(Auto defib mode only.)
Incorrect A/D reading for paddle ID (similar to
PADDLE FAULT).
CANNOT CHARGE
Cannot charge when charge button pressed.
REPLACE CARD
Write errors during manual or semi-automated
modes.
60
Replace paddle set,
universal cable and/or
system board.
Replace high voltage
module or capacitor.
May have configuration
card installed or write
protection on.
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M Series Service Manual
Error Message
Explanation
User
Advisory
CARD FULL
Memory Card Full.
CHECK CO2 SENSOR
EtCO2 Sensor is unplugged or defective.
Check that sensor cable
is plugged in and seated
properly. Check that
sensor is not exposed to
excessive heat. If
problem persists,
replace the sensor.
CHECK CO2 ADAPTER
Airway adapter is removed, occluded or adapter
zeroing needs to be performed or was performed
incorrectly.
Replace/Clean airway
adapter. Zeroing
performed
automatically.
CHECK MEMORY CARD
No card detected during manual or semi-automated
modes.
CHECK PADS
Message displayed in conjunction with either POOR
PAD CONTACT or DEFIB PAD SHORT.
CHECK PATIENT
Background ECG analysis detects shockable rhythm.
CHECK PULSE
Alternate message for NO SHOCK ADVISED
message.Message also shown after delivering third
shock when auto analyze 3 times option is enabled.
CHECK RECORDER
Produced when paper tray is empty, paper jams or
recorder door is opened.
61
Technical Action
Ensure pads are
coupled to patient.
Check /replace pads
and universal cable.
Replace system board.
Replace paper sensor
board, system
interconnect board,
and/or system board.
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M Series Service Manual
Error Message
Explanation
User
Advisory
CHECK SPO2 SITE
Low or no perfusion in monitored finger or toe.
CHECK SPO2 SENSOR
Reposition SpO2 sensor on patient.
CLOCK FAULT 11
Real time clock oscillator failure.
Replace system board.
CLOCK FAULT 12
Real time clock back-up power supply failure. Found
oscillator stopped at power-up, but oscillator now
running when the system is running. (Oscillator only
runs when main power is applied).
Replace system board.
CLOCK FAULT 13
One of the set time units (seconds, minutes, year,
etc.) is out of range.
Replace system board.
CO2 COMM ERROR
No or invalid communication from the EtCO2
Replace EtCO2 module
module.
and or system board.
Technical Action
CO2 SENSOR WARM UP
EtCO2 Sensor warming up.
CONFIRM MANUAL
MODE
Displayed when manual mode is entered. Alerts user
to confirm that manual mode is desired.
DEFIB DISABLED
User prompt issued simultaneously with other faults
if defib is disabled.
Possible configuration
problem. Replace high
voltage module. Call
ZOLL Technical
Support.
DEFIB FAULT 71
More than 50 internal dumps occurred in less than 20
minutes.
Turn the unit to OFF
and back on. If fault
persists, replace high
voltage module.
62
Wait for sensor to warm
up. This process takes
up to approximately
one minute.
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M Series Service Manual
User
Advisory
Error Message
Explanation
DEFIB FAULT 72
General defib error.
Turn the unit to OFF
and back on. If fault
persists, replace high
voltage module.
DEFIB FAULT 76
Capacitor voltage too high for selected energy.
Replace high voltage
module or capacitor.
DEFIB FAULT 77
Capacitor voltage > than absolute rated max.
Replace high voltage
module or capacitor.
DEFIB FAULT 78
Unable to charge defib cap.
Replace high voltage
module or capacitor.
DEFIB FAULT 79
Defibrillator charging too slowly.
Replace high voltage
module or capacitor.
DEFIB FAULT 80
4 defibrillator faults detected within 20 second
period.
Replace high voltage
module or capacitor.
DEFIB FAULT 81
Discharge switch in undefined state.
Replace high voltage
module or capacitor.
DEFIB FAULT 84
“Upper” discharge transistor shorted (measured via
applicable A/D channel).
Replace high voltage
module.
DEFIB FAULT 85
“Lower” discharge transistor shorted (measured via
applicable A/D channel).
Replace high voltage
module.
DEFIB FAULT 86
One discharge switch closed during power up test.
Replace paddles,
control board or system
board.
DEFIB FAULT 87
Both discharge switches closed during power up test.
Replace paddles,
control board or system
board.
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Technical Action
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M Series Service Manual
User
Advisory
Error Message
Explanation
DEFIB FAULT 94
Processor fault causing safety monitor port to be
non-functional.
Replace system board,
high voltage module or
capacitor.
DEFIB FAULT 95
Safe or shutdown line is not functional.
Replace high voltage
module.
DEFIB FAULT 96
XPATREL or XPAT_ENABLE is faulted or one of
the discharge transistors has shorted.
Replace high voltage
module.
DEFIB FAULT 108
VMON voltage is less than the target energy during
charging.
Replace high voltage
module or capacitor.
DEFIB FAULT 109
Defib capacitor voltage is greater than selected
energy when defibrillator is charging or ready.
Replace high voltage
module or capacitor.
DEFIB FAULT 111
Defib capacitor voltage has exceeded the absolute
maximum acceptable voltage.
Replace high voltage
module, capacitor, and
or system board.
DEFIB NOT CHARGED
Discharge button is pressed but the unit is not
charged.
DEFIB PAD SHORT
Measured impedance between high voltage leads of
MFC.
DISABLE SYNC
Sync mode active when analyze pressed in defib.
DISCHARGE FAULT
Defib capacitor voltage is not decreasing.
64
Technical Action
Ensure pads are
coupled to patient.
Check /replace pads or
universal cable.
Replace system board.
Replace high voltage
module, capacitor, and/
or system board.
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M Series Service Manual
User
Advisory
Error Message
Explanation
ECG FAULT 4
Communication fault between ECG processor and
main processor.
Turn off unit and then
turn on to reset. If fault
persists, replace system
board.
ECG FAULT 5
ECU RAM test failure, or ROM checksum test
failure.
Turn off unit and then
turn on to reset. If fault
persists, replace system
board.
ECG LEAD OFF
One or more ECG leads are not properly connected
when leads are selected as input.
Check cable and patient
connection. Change
electrodes. Prepare
patient’s skin.
ECG TOO LARGE
ECG signal too large for accurate shockable rhythm
analysis.
Reduce ECG size.
ECG TOO SMALL
ECG signal too small for accurate shockable rhythm
analysis.
Increase ECG size.
ECG V1 LEAD OFF
Chest lead V1 is not properly attached to patient.
Reattach V lead. Check
cable.
ECG V2 LEAD OFF
Chest lead V2 is not properly attached to patient.
Reattach V lead.
Check cable.
ECG V3 LEAD OFF
Chest lead V3 is not properly attached to patient.
Reattach V lead.
Check cable.
ECG V4 LEAD OFF
Chest lead V4 is not properly attached to patient.
Reattach V lead.
Check cable.
ECG V5 LEAD OFF
Chest lead V5 is not properly attached to patient.
Reattach V lead.
Check cable.
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Technical Action
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M Series Service Manual
Error Message
Explanation
User
Advisory
ECG V6 LEAD OFF
Chest lead V6 is not properly attached to patient.
Reattach V lead. Check
cable.
ENTER ACCESS CODE
Manual mode access code needed.
Enter access code to
enter manual mode
with AED.
ERASING REPORT
Summary report being erased.
ECU CRC FAULT
Invalid ECG samples detected over a one second
period.
Turn off unit and then
turn on to reset. If fault
persists, replace system
board.
EtCO2 COM ERROR
No or invalid communication from EtCO2 module.
Return unit for service
to ZOLL Technical
Service Department.
FAX DIALING
Preparation for sending fax.
FAX DONE
Transmission complete.
FAX PREPARING
Preparing fax for transmission.
FAX SENDING
Transmitting fax.
INSERT CARD
Check memory card
No card installed in unit during manual or semiautomated modes.
LOW BATTERY
Low battery.
Replace battery or plug
into AC power. Replace
charger.
NO QRS DETECT
Unit is in sync mode and heart rate is < 20 BPM or
QRS amplitude is too low for proper
synchronization.
Increase ECG size and/
or change lead.
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Technical Action
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M Series Service Manual
User
Advisory
Error Message
Explanation
NO SHOCK ADV
No shock advised. Advisory message when analysis
finds non-shockable rhythm.
NOISY ECG
Number of noisy analysis intervals exceeds
threshold.
OPEN AIR DISCHARGE
Cap voltage too high after discharge attempt, e.g.,
full energy discharge did not occur.
Replace paddles, and,
or high voltage module
and system board.
PACER DISABLED
User prompt issued simultaneously with other pace
faults if pacing is disabled.
Replace high voltage
module or system
board.
PACER FAULT 115
Flyback pulse width control circuit is not under
proper control of the processor and gate array.
Replace high voltage
module, capacitor, or
system board.
PACER FAULT 116
Failure to detect XPACE_ON.
Replace high voltage
module, capacitor, and/
or system board.
PACER FAULT 117
Pace relay is stuck closed.
Replace high voltage
module, capacitor, and/
or system board.
PACER FAULT 121
During pace, the pace pulse width <30ms or >50ms.
Replace high voltage
module, or system
board.
PACER FAULT 122
Pace current is more than 15mA above and below
selected value.
Replace high voltage
module, or system
board.
67
Technical Action
Stop all patient
movement. Check
connections. Press
Analyze button again.
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M Series Service Manual
User
Advisory
Error Message
Explanation
PACER FAULT 123
Measured pace rate is too fast compared to selected
rate.
Replace high voltage
module or system
board.
PACER FAULT 126
Issued in conjunction with message 122. Pace
current is more than 15mA and below selected value.
Replace high voltage
module.
PADDLE FAULT
Cannot detect type of accessory attached to the
universal cable.
Replace paddles,
internal paddles, system
board, high voltage
module and/or
universal cable.
PERFORM CPR
Advisory message in AED auto defib mode.
PLACE ON ZERO CELL
EtCO2 sensor cable plugged into unit for the first
time. Zeroing error or probe drift error detected.
Technical Action
Zero sensor. Replace
sensor. Return to ZOLL
for service.
POOR LEAD CONTACT
One or more ECG leads are poorly connected or not
connected to patient. (User configurable.)
Check electrode
attachment to patient,
cable connector to
electrode, cable to unit
connector. Broken unit.
POOR PAD CONTACT
Electrode impedance exceeds threshold.
Ensure pads are
coupled to patient.
Check /replace pads or
universal cable.
Check impedance
circuit calibration.
Replace system board.
PRESS ANALYZE
Alternate message for check patient prompt.
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M Series Service Manual
User
Advisory
Error Message
Explanation
PRESS CHARGE
Advisory message in conjunction with shock
advised.
PRESS SHOCK
Prompt issued in AED auto defib mode when defib is
charged (ready).
RECORDER FAULT 142
Strip chart system error.
Check paper tray and
paper path. Replace the
print head, system
interconnect board and
or the system board.
RECORDER FAULT 143
Strip chart failed power-up echo test.
Communications error.
Check paper tray and
paper path. Replace the
system interconnect
board and/or the system
board. Turn unit off and
back on again.
RECORDER FAULT 147
Strip chart printhead over temperature.
Check paper tray and
paper path. Replace the
print head, system
interconnect board and/
or the system board.
RELEASE BUTTONS
Simultaneous external paddle button presses
detected before unit reached full defib charge (ready
state).
Release buttons.
RELEASE SHOCK
Discharge switch(es) closed when pressing charge
button. Discharge button pressed before defib
reached ready state.
Release shock button.
Check paddles.
Replace controls board.
REPLACE BATTERY
Battery voltage is less than absolute minimum.
Shutdown imminent.
Replace with charged
battery.
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Technical Action
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M Series Service Manual
Error Message
Explanation
User
Advisory
Technical Action
REPLACE EtCO2
EtC02 SENSOR WARM UP message displays for
Replace sensor cable.
SENSOR
more than five minutes. Sensor defective.
REPORT FULL
Summary report memory full.
Erase summary report.
REPORT HALTED
Summary report stops printing unexpectedly.
Turn unit off and then
back on again. Print
Summary again. If fault
persists, replace system
board.
RESERVED 1
The watchdog timer is not functional in the unit.
Turn off unit and then
turn on to reset. If fault
persists, replace system
board.
RETRY ANALYSIS
Advisory message in conjunction with noisy ECG.
Analysis halted.
SELECT 30J FOR TEST
Attempt to run a self test at an energy other than 30J.
SELECT DEFIB MODE
Analyze button pressed in pace or monitor mode.
SELECT LIMB LEADS
Paddles or augmented ECG leads selected when
continuous analysis active or started.
SELECT PADS
Lead I, II, or III selected when analyze pressed.
SET CLOCK
Real time clock failure: invalid date or time.
SET PACE mA
Multiple copy errors are the product of intended
software or memory errors. If error reoccurs other
than on entering pace the first time or after more than
10 minutes in other mode, the unit could be broken.
70
Select limb leads I, II,
III or MFE
Set date and time and/
or replace system
board.
Set pace current. If
broken, replace system
board.
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M Series Service Manual
User
Advisory
Error Message
Explanation
SET PACE RATE
Multiple copy errors are the product of intended
software or memory errors. Multiple copies of pace
rate don't match. If error persists, unit could be
broken
SHOCK ADVISED
Advisory message when analysis finds a shockable
rhythm.
SpO2 AMBIENT LIGHT
Ambient light is too bright.
Technical Action
Set pace rate. If broken,
replace system board.
Shield sensor from
ambient light. Replace
Sp02 sensor. Replace
Sp02 module
SpO2 COMM ERR
No transmissions from SpO2unit received.
Replace Sp02 module
Communication error or no communication from
Sp02 module.
and/or system board.
SpO2 PULSE SEARCH
Pulse search in progress.
SpO2 SENSOR FAULT 1
Defective sensor.
Replace Sp02 sensor.
SpO2 SENSOR FAULT 5
Unrecognized sensor.
Replace Sp02 sensor.
STAND CLEAR
(Auto defib mode only.) Single analysis mode just
turned on and defib idle. Patient rhythm is being
analyzed.
SYSTEM FAULT 2
MCU ROM checksum test failure or MCU RAM test
failure.
71
Turn off unit and then
turn on to reset. If fault
persists, replace system
board.
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M Series Service Manual
User
Advisory
Error Message
Explanation
SYSTEM FAULT 5
ECU RAM test failure or ROM checksum test
failure.
Turn off unit and then
turn on to reset. If fault
persists, replace system
board.
SYSTEM FAULT 6
No communications received from ECU for 4
seconds.
Turn off unit and then
turn on to reset. If fault
persists, replace system
board.
SYSTEM FAULT 7
The A/D converter is not performing conversions in
a timely manner.
Replace system board.
SYSTEM FAULT 36
P1MON is less than 412 counts or greater than 612
A/D counts. Pace/defib is disabled as long as
condition exits.
Replace system board.
SYSTEM FAULT 37
Disable pace/defib and MFE monitoring.
Replace system board.
SYSTEM FAULT 38
Failure to shutdown after “shutdown order” is
written to the RTC.
Replace system board.
TEST FAILED
MCU performed ipeak test (defib peak current) and
unit failed during 30J self test.
TEST OK
MCU performed ipeak test (defib peak current) and
unit passed 30J self test.
USE PADDLE DISCHG
Front Panel discharge button is pressed when either
external paddles or internal spoons with discharge
buttons are connected.
72
Technical Action
Replace universal
cable, paddles or high
voltage module,
capacitor, or system
board.
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M Series Service Manual
User
Advisory
Error Message
Explanation
USE PADS
(AUTO DEFIB MODE ONLY.)
Attempt to defib with paddles in auto defib (AED)
mode. Defib only allowed using PADS in AED
modes.
USE PADS TO PACE
External paddles detected in pace mode.
USE ROOM AIR
ADAPTER
Adapter zeroing started with EtCO2 in the adapter or
USER SETUP REQ
Both copies of stored cal/config data are bad or have
never been programmed.
VF ALARMS OFF
VF alarms disabled in pace mode or when paddles
are selected as leads.
VX LEADS OFF
V lead not properly attached to patient. “X” denotes
lead number.
Reattach V lead.
ZERO CO2 SENSOR
New EtCO2 sensor needs to be zero calibrated.
Zero EtCO2 sensor.
ZERO CO2 ADAPTER
New EtCO2 airway adapter needs to be zero
Zero EtCO2 adapter.
the adapter is on the REF or “0” cell.
calibrated.
73
Technical Action
Place CO2 sensor on
adapter in room air.
Perform configuration
setup.
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Chapter 3
Disassembly Procedures
Overview
This chapter provides instructions on how to disassemble and reassemble the M Series unit, and includes the following
sections:
• Required Equipment
• Parts That May Need Replacing After Disassembly
• Safety Precautions
• Overview of Modules
• 1. Removing the ZIF Keeper
• 2. Removing the Front Panel
• 2A. Removing the Display
• 2B. Removing the Control Board
• 3. Removing the Upper Housing Assembly
• 4. Removing the System Board Assembly
• 5. Removing the Battery Interconnect Board Assembly
• 6. Removing the High Voltage/Charger Assembly
• 7. Removing the High Voltage Module Assembly
• 8. Removing the High Voltage Capacitor Assembly
• 9. Removing the System Interconnect Board
• 10. Removing the Printer/Recorder Motor
• 11. Removing the Lower Housing Assembly
• 12. Removing the Print Head Assembly
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• 13. Removing the PCMCIA Card Slot Assembly
• 14. Removing the Paddle Release Latch
Required Equipment
• No. 1 Phillips screwdriver.
• No. 2 Phillips screwdriver.
• Exacto-knife.
• Orange wooden stick. (Available from H.A. Stiles: 1-800-447-8537)
• 90° dental pick.
• Needle nose pliers.
• Kapton tape.
• 3M copper adhesive tape, or equivalent.
• 1/2” nut driver.
• Large diagonal cutters.
• Strong glue, such as Loctite 420 or equivalent.
• Loctite needle tip dispenser.
Parts That May Need Replacing After Disassembly
If you are removing the Control Board from the Front Panel, you need to have:
• Main Selector knob replacement (ZOLL Part Number 9310-0521)
• Pacer/Output/Rate knob replacement (ZOLL Part Number 9310-0520)
If you are removing the Battery Interconnect Board, you may need to replace it with a new one, using ZOLL Part
Number 9301-0302, if connectors have been UV welded as in older M Series models.
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Safety Precautions
WARNING!
CAUTION
SHOCK HAZARD!
TAKE THE NECESSARY PRECAUTIONS TO GUARD AGAINST SHOCK OR INJURY BEFORE YOU CONDUCT
DEFIBRILLATOR TESTS OR REPAIRS.
• Only properly trained technicians should service the unit.
• The unit can contain deadly voltages even if the unit is turned off.
• Make sure to discharge the unit before working with it.
• Make sure you take the necessary precautions when working with static sensitive units. For example, you must wear
a conductive wrist strap (which touches your skin) connected to a grounding mat and to the earth ground. You must
remove the wrist strap when you discharge high voltage or when you are working on energized equipment.
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Overview of Modules
The M Series unit contains 14 modules, as shown below.
Isolated Power Supply with EtCO2
SpO2 module with bracket for EtCO2
System Board Assembly
System Interconnect Board
Battery Interconnect Board Assembly with 3 Battery
Pin Gaskets
AC Charger Assembly
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Control Board (from Front Panel)
High Voltage Module Assembly
High Voltage Capacitor Assembly
PCMCIA Card Slot
Recorder Motor
SpO2 Module (without bracket)
Isolated Power Supply for SpO2 Module
Biphasic Capacitor and Bridge Assembly
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1. Removing
the ZIF
Keeper
Step 1: The connector must be facing you as
shown in the diagram.
Tools Required
• Orange stick
Note: It is important to know this procedure
before you start disassembling the unit.
Removing the ZIF (Zero Insertion Force)
Keeper incorrectly can damage the unit’s
system board.
To reinstall the ZIF Keeper:
1. Place the ZIF Keeper over the laminate
cable and insert the flex cable into the
connector. Latch the connector.
Latch
Step 2: Angle and lift up the right end of the ZIF
Keeper from the connector and the board. Slide
the Keeper approximately 1 mm to the left, then
gently lift the left side to clear the connector.
2. Lower the left end of the ZIF Keeper over
the connector end until it touches the
printed wire assembly (PWBA). The other
end of the connector should be angled.
Step 3: Gently pull the ZIF (Zero Insertion
Force) Keeper over the laminate cable and rotate
the latch upwards.
Keeper
Lift here
3. Press the end of the ZIF Keeper down over
the end of the connector. Be careful that
the ZIF Keeper snaps over the end of the
connector.
Latch
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2. Removing
the Front
Panel
Step 1: Remove the battery from the battery well
and place it in front of the unit.
Step 2: Rotate unit on to its back side. Remove
the two Phillips head screws located on the left
and right sides on the bottom of the unit.
Step 3: Place your thumbs in the main selector
switch cup and push up on the front panel to
release the panel from the unit. After the front
panel is removed, use the battery as a support for
the panel. Do not use the main selector switch as
point of leverage.
Step 4: Disconnect the multi-wire cable from the
system board by gently pulling the beige
connector by its sides towards the front of the
unit. Remove the ZIF keeper from the laminated
ribbon cable and then disconnect it. Lift the right
side first with the unit facing you.
Tools Required
• No. 2 Phillips screwdriver
• Orange stick
To reinstall the Front Panel:
1. Reinstall the laminate cable first with the
black band facing up and towards the system
circuit board.
2. Reconnect the multi-wire cable from the
display.
3. Reverse steps 1, 2, and 3 above to reinstall
the front panel.
Multi-wire cable
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2A.
Removing
the
Display
Step 1: Remove the grounding copper tape from
the outer display shield.
video display
assembly
Tools Required
• No. 2 Phillips Screwdriver
• Exacto-Knife
• 3M Copper Adhesive Tape
Step 2: Remove the Video Display Assembly by
rotating the display upwards from the lower
portion of the display panel assembly.
Step 3: Remove the Video Display Assembly.
To reinstall the Display
Reverse steps 1 through 3.
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2B.
Removing
the
Control
Board
Step 1: (Caution: The knob will be damaged
during this step.) Gently insert the cutters at the
edge of the main selector knob and pry outward
until the knob is removed. Then carefully remove
the 1/2” nuts without damaging the Selector
Switch.
Step 2: Gently insert the cutters at the edge of the
pacer knobs and pry outward until the knobs are
removed. Then carefully remove the 1/2” nuts
without damaging the Pacer Switches and green
pace cups.
Step 3: Rock the foam packaging back and forth
from the control panel board to remove the foam.
Step 4: Remove the panel overlay circuit cable
from the control board by lifting the sides of the
lock lever located under the front of the control
board. (See 1. Removing the ZIF Keeper.)
Tools Required
• No. 2 Phillips Screwdriver
• Orange (Wooden) Stick
• 1/2” Nut Driver
• Large Diagonal Cutters
• Strong Glue, such as Loctite 420 or
equivalent
panel overlay circuit cable
Note: If you are removing the Control Board
from the Front Panel you may need to replace
the following parts:
• Main Selector knob replacement (ZOLL Part
Number 9310-0521)
wooden stick
foam packaging
• Pacer Output/Rate knob replacement (ZOLL
Part Number 9310-0520).
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2B.
Removing
the
Control
Board
(Continued )
Step 5: Disconnect the speaker microphone cable.
Remove the Control Panel Board from the Front
Panel Assembly. Important: Note the position of
the dip switches because they must be in the same
position for reinstallation.
Step 6: Remove the 50 pin laminate cable from
the control board. See 1.0 Removing the ZIF
Keeper.
50 pin laminate cable
To reinstall the Control Board
1. Set the dip switches and attach the SHOCK
button LED actuator.
2. Place a small amount of strong glue on the
end of the mode selector switch. Slide the
replacement knob on. After the glue dries,
rotate the selector knob to ensure that it is
properly glued in place.
3. Replace the Pacer Output/Rate knobs, if
applicable.
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3. Removing
the Upper
Housing
Assembly
Step 1: Remove two screws from the back side of
the Upper Housing Assembly and three screws
from the front.
Tool Required
• No. 1 and 2 Phillips screwdriver
Set-up
Remove Front Panel (See Step 2.)
1. Remove the two screws securing the
universal cable.
2. Do not lose the O-ring when removing the
universal cable.
Step 3: Make sure that the rubber gaskets are
covering the battery contact pins. If the gaskets
are still seated in the housing, remove and place
them onto the contact pins. Before installing the
Upper Housing ensure that the battery pin gaskets
are set properly.
battery pin gasket
3. Remove the three Phillips screws in the
front of the Upper Housing.
To reinstall the Upper Housing Assembly,
reverse the above steps.
Ensure the battery pin gaskets are properly set.
86
Step 2: Secure lower housing to the table by
pressing downward in the paddle well. Using the
carry handle, lift the Upper Housing upward.
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4. Removing
the
System
Board
Assembly
2. Remove the Front Panel Assembly.
3. Remove the Upper Housing Assembly.
To reinstall the System Board Assembly, reverse the steps.
Tools Required
• #1 and #2 Phillips Screwdriver
• Grounding Mat
• Grounding Wrist Strap
• Needle Nose Pliers
• Orange Stick
WARNING! You can damage the hardware of
the unit. You must use ESD grounding before
you handle any printed circuit boards on the
unit.
Setup
Before you begin this procedure, make sure you
are grounded.
1. Know or review 1.0 Removing the ZIF
Keeper procedure.
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Step 1: Using needle nose pliers, remove left and
right multi-wire cables on the back side of the
system board. To avoid damage to the cable, do
not pull the wires. Hold system board securely
with one hand. DO NOT let it fall forward to
prevent excess tension on the unit’s wires.
Step 2: Remove the two wire speaker cable (if
applicable).
Step 3: Lower the system board with one hand
and remove the battery interconnect laminate
cable from the center of the system board. (See 1.
Removing the ZIF Keeper.)
Step 4: Gently roll the system board forward and
rest it on the battery.
battery interconnect laminate cable
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Step 5: Remove the ZIF Keeper. (See 1.
Removing the ZIF Keeper.)
Step 6: For Biphasic M Series units only:
Remove the 20 pin power cable by lifting the slide
locking tab upwards.
Step 7: For M Series units with the SpO2 and/or
SpO2 with EtCO2 only: Remove the 20 pin power
cable by lifting the slide locking tab upwards.
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5. Removing
the
Battery
Interconn
ect Board
Assembly
Step 1: Identify the Battery Interconnect Board.
Step 2: Remove the wide laminate cable from the
high voltage module connector by lifting the
cable vertically.
Step 3: Remove the push pin and small insert
collar.
Step 4: Rotate the unit around so that the rear of
the unit faces you. Rotate the Battery Interconnect
Board upwards toward the front of the device.
Hold the board vertically while removing the 10pin laminate cable from connectors by lifting the
connector lock.
Tools Required
• Orange stick
Setup
charger cable
1. Remove the Front Panel Assembly.
10 pin laminate cable
2. Remove the Upper Housing Assembly
3. Remove the System Board Battery Cable.
To reinstall the Battery Interconnect Board,
reverse the steps.
NOTE For Step 4, remember to carefully remove
the cable from the Charger Assembly
when disassembling and reinstalling it.
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6. Removing
the High
Voltage/
Charger
Assembly
DO NOT SHORT THE TERMINAL ENDS OF THE CAPACITOR. Refer to Section 8, Step 2.
Tools Required
• #2 Phillips screwdriver
• Orange stick
• Small needle nose pliers
Setup
1. Remove the Front Panel Assembly.
2. Remove the Upper Housing Assembly.
3. Remove the System Board.
4. Remove the Battery Interconnect Board.
To reinstall the High Voltage Charger Assembly,
reverse the steps.
WARNING! This unit may contain lethal
voltages. You MUST completely discharge the
high voltage capacitor before removing from
unit.
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Step 1: Remove the High Voltage/Charger
Assembly from the main housing by lifting the
High Voltage/Charger Assembly upwards and
rotating it towards the back of the unit.
Step 2: Set the Assembly on the table. Pull apart
the High Voltage Module from the Charger
Assembly. These three components are referred to
as the “Module Cluster”.
High voltage
module
High voltage
capacitor
Charger assembly
Step 3: Depress the lever on the High Voltage
Cable to remove it from the mounting panel. Cut
the tie wrap attached to the mounting bracket that
secures the cables.
Step 4: (SpO2 units only) To remove the SpO2
module from the Isolated Power Supply, remove
the Mylar® tape. EtCO2 module and power
supply are one assembly at the same location.
high voltage cable
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Step 5: Lift the SpO2 module straight up from the
foam and disconnect the ribbon cable from the
Isolated Power Supply.
Step 6: (Biphasic units only) Disconnect the
biphasic defibrillator capacitor from the rear
panel connector.
Biphasic
defibrillator
capacitor
Step 7: (Biphasic units only) Disconnect the
Molex connector from the biphasic module.
Step 8: (EtCO2 units only) Remove the EtCO2
connector by gently lifting the connector away
from the back panel. To remove the EtCO2 and
isolated power supply, refer to Step 5.
Molex
connector
EtCO2
connector
Biphasic
module
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7. Removing
the High
Voltage
Module
Assembly
5. Remove the High Voltage/Charger Assembly.
To reinstall the High Voltage Module Assembly, reverse the steps.
Tools Required
• #2 Phillips screwdriver
• Exacto-Knife
WARNING! This unit may contain lethal voltages.
You must completely discharge the high voltage
capacitor by changing the energy selection during
the charge cycle of the defibrillator. Power off unit.
Wait three minutes before disassembly.
DO NOT SHORT THE TERMINAL ENDS OF
THE CAPACITOR. Refer to Section 8, Step 2.
Setup
1. Remove the Front Panel Assembly.
2. Remove the Upper Housing Assembly.
3. Remove the System Board.
4. Remove the Battery Interconnect Board.
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Step 1: Remove the signal cable from the High
Voltage module.
Step 2: Remove the Kapton tape on the bottom of
the foam surrounding the High Voltage Module.
Step 3: Separate the High Voltage Module from
the foam.
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8. Removing
the High
Voltage
Capacitor
Assembly
To reinstall the High Voltage Capacitor Assembly, reverse the steps.
WARNING! This unit may contain lethal voltages. You MUST completely discharge the high voltage
capacitor before removing from unit. DO NOT SHORT THE TERMINAL ENDS OF THE
CAPACITOR.
Step 1: Open the High Voltage Capacitor plastic
isolator by lifting the Mylar tape.
Tools Required
• #2 Phillips screwdriver
• Exacto-Knife
• Mylar tape
Setup
1. Remove the Front Panel Assembly.
Step 3: When the capacitor voltage is at 0 VDC,
disconnect the inductor wires and capacitor
terminal wires.
2. Remove the Upper Housing Assembly.
3. Remove the System Board.
4. Remove the Battery Interconnect Board.
5. Remove the High Voltage Charger
Assembly.
6. Lift the Capacitor Assembly upwards from
the chassis. (The Capacitor Assembly is still
connected to the High Voltage Module
Assembly.)
96
Step 2: Bleed the excess voltage using a resistor
with values of approximately 5 kohms, 25 watts
for 10-20 seconds. Measure the voltage on the
capacitor terminals.
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9. Removing
the
System
Interconn
ect Board
3. Install two screws.
4. Reconnect all the cables and reverse the steps.
Tools Required
• #2 Phillips screwdriver
Setup
1. Remove the Front Panel Assembly.
2. Remove the Upper Housing Assembly.
3. Remove the System Board.
4. Remove the Battery Interconnect Board.
5. Remove the High Voltage/Charger module.
6. Remove the clear plastic print head isolater.
7. Remove the motor cable, cable print head
and paper sensor cable.
To reinstall the System Interconnect Board:
1. Install the laminate cables and keepers.
2. Ensure that the PCMCIA slots with gaskets
are located to the right rear of the board and
seated properly.
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Step 1: Remove the clear plastic head isolater.
Step 2: Remove two screws from each side of the
System Interconnect Board.
Step 3: Disconnect the cables and lift the System
Interconnect Board out of the unit.
paper sensor
cable
cable print
head
motor cable
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10.Removing
the
Printer/
Recorder
Motor
To reinstall the Printer/Recorder Motor, reverse the steps.
Tools Required
• #2 Phillips screwdriver
• Exacto-Knife
• Kapton tape
Setup
1. Remove the paper tray, pull out and press
up on the locking tab at the rear of the tray.
2. Remove the Front Panel Assembly.
3. Remove the Upper Housing Assembly.
4. Remove the System Board.
5. Remove the Battery Interconnect Board.
6. Remove the High Voltage Module
Assembly.
7. Remove the sensor, printhead and motor
cables.
8. Remove the System Interconnect Board.
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Step 1: Using the needle nose pliers, carefully lift
the spacer block upwards.
cable
motor
Step 2: Remove the motor bracket mounting
screw.
spacer block
Step 3: Lift the motor upward by prying on the
motor bracket with the screwdriver.
motor bracket
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11.Removing
the Lower
Housing
Assembly
Step 1: Remove the paper tray by pulling it out
and pressing the locking tab upwards at the rear of
the tray.
Step 2: Remove the screw at the bottom of the
unit to remove the PCMCIA FAX/Modem card’s
plastic protector.
Step 3: Remove the remaining screws from the
bottom of the unit.
Step 4: Lift the lower housing assembly straight
up and out from the unit
Tools Required
• #2 Phillips screwdriver
Setup
• Remove all power sources, such as the
battery and power cord.
To reinstall the Lower House Assembly, reverse
the steps.
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12.Removing
the Print
Head
Assembly
Step 1: Remove two screws from the paper tray
guide and remove the paper tray guide.
print head
ribbon cable
Tools Required
• #1 Phillips screwdriver
Setup
• Remove the Lower Housing Assembly.
Step 2: Disconnect the ribbon cable from the
print head.
Step 3: Remove the pivot pin for re-use.
To reinstall the Print Head Assembly, reverse the
steps.
print head
pivot pin
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13.Removing
the
PCMCIA
Card Slot
Assembly
Step 1: Remove the two screws holding the card
slot retainer. Lift up card slot assembly.
Tools Required
• #2 Phillips screwdriver
Setup
• Remove the Lower Housing.
To reinstall the PCMCIA card slot, reverse the
step.
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14.Removing
the
Paddle
Release
Latch
Tools Required
• #2 Phillips screwdriver
Step 1: Using the Exacto Knife, remove the
adhesive seal on the unit’s chassis.
Step 2: Insert the screwdriver into the opening
under the adhesive seal.
Step 3: Gently push the screwdriver until the
Paddle Release Latch is dislodged.
Step 4: Pull Paddle Release button away from the
unit.
• Exacto-Knife
• Upper Latch Seal (9330-0304)
Setup
1. Remove the Front Panel Assembly.
2. Remove the Upper Housing Assembly.
To reinstall the Paddle Release Latch, reverse
the steps.
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M Series Service Manual
Chapter 4
Replacement Parts
Overview
This section contains a listing of the replacement parts available for the ZOLL M Series devices.
Replacement parts may be ordered through an authorized ZOLL distributor or directly from ZOLL Medical
Corporation. The prices for parts are available from ZOLL Medical Corporation’s Technical Service Department.
When ordering parts, please provide the following information:
• ZOLL M Series device model and serial number
• Field Replaceable unit part number
• Description of the replacement part
To order by mail from ZOLL Medical Corporation, address your request to:
ZOLL Medical Corporation
269 Mill Road
Chelmsford, MA. 01824-4105
Attention: Technical Service Department
1-978-421-9655; 1-800-348-9011; Fax: 1-978-421-0010
Note
ZOLL reserves the right to substitute different parts to reflect modifications and improvements in ZOLL M Series
circuitry and design.
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Replacement Parts
Description
Part Number
12 Lead ECG Cable
1001-0031-01
3M 12 Conductor Cable - LCD
0500-6000
4-40 x 1/4, System Interconnect Board, Mounting Screw
0163-0626
4-40 x 3/8 Modem Bezel Screw
0163-0153
6/32 x 3/8 Screws, Housings
0163-0912
AC Power cord with ferrite
1001-0195-01
AC Receptical Assembly
1001-0114
Access/Detect Cable
9500-0500
Adhesive Barrier, Speaker
9330-0324
AED Non-Pacing Membrane
1001-0187-01
Assembly Cable, EL (Yellow) Display
1001-0171
Assembly Cable, ECG out, Cable Sense
9500-0500
Assembly Capacitor & Choke (DSW)
1001-0134
Assembly Paddle Test Harness
1001-0102
B/W LCD Cable Assembly
1001-0173
Barrier, Isolation, Chassis, Print Head Cable
9330-0332
Barrier, Moisture, Speaker
9330-0305
Bezel, Modem, Center Open
9310-0512
Bracket, Speaker Mount
9320-0409
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Description
Part Number
Brush, Static Dissipation
9340-0102
Bumper, Chassis, High Voltage, Capacitor
9330-0205
Cable Flex CRT. 312 TO System Board
9500-0519
Cable Laminate, 50 Pin
9500-0501
Cable, Laminate, ECG Connector to System Board
9500-0506
Cable, Recorder Print Head
9500-0400
Configuration Manual
9650-0201-01
Connector Assembly SPO2 (din connector)
1001-0160
ECG Connector 12 Lead
1001-0232
ECG Input Connector Assembly
1001-0132
ECG Laminated Cable
9500-0506
EL (Yellow) Display only
9355-0505
EL Display
1011-0029
FED Display
0208-0011
Front Panel Membrane Switch Assembly
1001-0135-01
Front Panel Screw, 6-32x 1 3/4
0163-0211
Gasket, Battery Pin
9330-0317
Gasket, Die Cut, Printer Motor
9340-0101
Gasket, MPPM Port and Motor Support, Chassis
9330-0303
Gasket, PCMCIA Connector, System Interconnect Board
9330-0312
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Description
Part Number
Gasket, Print Head Cable
9330-0314
Handle (Part One)
9310-0545
Handle Insert (Part Two)
9310-0546
Isolator, High Voltage Module, Folded
1001-0146v
Isolator, Left Side Chassis
9310-0552
Keeper, 50 Pin Laminate Cable
9310-0573
Knob, Main Selector
9310-0521
Knob, Pace Control
9310-0520
Latch Paddle Release
9310-1514
Latch Spring
0190-0100
LCD Display
9355-0510-99
LCD Frame
9310-0595
Leafspring, Print Head
9320-0300
Lower Housing
1001-0124
Lower Latch, Paddle
9310-0511
Lower Latch, Pivot
9320-0065
Main Chassis
9310-2502-90
MFC Signal Cable
9500-0517
Motor Support (Teflon Piece)
9330-0355
M Series Main Label Set
9305-0527-01
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Description
Part Number
Noncharger Substitute Board
9301-0311
O-ring, MFC, M Series
0160-6950
Paddle Shoes
1001-0148
Paper Tray Assembly
1001-0103
PCMCIA Conn., Assembly
3001-0101
PCMCIA Stabilizer Board
9320-0304
Pivot Rod, Printhead
9320-0401
Print Head Assembly
1001-0101
Print Head Support/Paper Tray Guide
9310-0510
Recorder Motor Assembly
1001-0104
Retainer, Latch Paddle Release
9310-1515
Rubber Foot x 4
0310-0311
Seal, Pace and Main Selector Knobs
9310-0548
Snap Rivet, Battery Interconnect Board
0163-1709
Spacer, Lower Latch, Paddle well
9320-0315
Speaker Assembly
1001-0115
Spring, Recorder Tray
0190-0101
Tape, Copper Adhesive, Roll (54')
0550-0037
Tape, Kapton, Roll (108')
0550-0003
Tape, Yellow Mylar, Roll (108')
0550-0125
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Description
Part Number
Universal cable
1001-0196-01
Upper Housing
1001-0126
Upper Latch Seal
9330-0304
Field Replacement Parts
Description
Part Number
Battery Interconnect for units EtC02
9301-0303
HV Assembly Module (DSW) Defib Only
1001-0105-03
System Board 50 MHz 9301-0300-01
1001-0130-01
System Board 50 MHz (LCD only) 9301-0300-02
1001-0130-02
System Board 3/5 lead with audio 9301-0337-02
1001-0130-14
System Board 12 lead with audio 9301-0337-02 and 9301-0304
1001-0130-15
LCD Interface PWB for use with New Inverter
9301-0313
Biphasic Bridge Cap Assembly
1001-0182
Biphasic HV Module
1001-0181
AC Charger with EtCO2 Heatsink
1001-0108-02
HV Assembly Module (DSW) Pace/Defib
1001- 0105
Battery Interconnect for units EtC02
9301-0303
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Description
Part Number
HV Assembly Module (DSW) Defib Only
1001-0105-03
Battery Interconnect (pre EtCO2)
9301-0302
Paper Sensor Board
1001-0131
System Interconnect
9301-0306
AC Charger Board with Heatsink
1001-0108
Control Board with Pace
9301-0312
LCD Display Interface Board
9301-0308
SpO2 Board (Masimo)
1001-0158
Power Supply, Isolated, SpO2
1001-0159
DC Charger Board with Heatsink
1001-0107
100 Mhz AED/SpO2 non 12 Lead (901-0300-04)
1001-0130-04
System PCB. (Biphasic only 9301-0300-03)
1001-0130-03
100 Mhz 12 Lead/SpO2 (9301-0307)
1001-0130-05
System Interconnect 12 Lead Faxing
9301-030602
PCB Control with Pace Non-AED
9301-0312-05
Assy PCB Connector EtCO2
9301-0325
EtCO2 Isolated power supply
EtCO2 Isolated power supply (with EtCO2 PCB)
1001-0015
3001-0103
PCB control no pace
9301-0312-02
PCB control AED with pace
9301-0312-03
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Description
Part Number
PCB control AED no pace
9301-0312-04
12 Lead Based (9301-0337-01)
1001-0130-09
3/5 Lead With Audio 9301-03 37-02 and 9301-0304
1001-0130-10
12 Lead (9301-0307-01)
1001-0130-06
3/5 Lead/Biphasic (9301-0307-02)
1001-0130-07
System Interconnect Board with Faxing Capability
9301-0306-03
PCB control without pace non AED
9301-0312-06
PCB control with pace AED
9301-0312-07
PCB control without pace
9301-0312-08
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Chapter 5
Functional Description
Overview
This chapter provides functional descriptions of the components contained in the ZOLL M Series and the M Series
options. Refer to the interconnect diagram that delineates the different components of the defibrillator.
This chapter includes:
Main System Board
Main System Board Functions
Power Supply
User Interface
Audio I/O Module
ECG Front End
Multifunction (MFE) Paddles
Main CPU and EPU
High Voltage Module
Defibrillator Charging and Discharging
High Voltage Capacitor Module
Pacer and Defibrillator Control Signals
Internal Discharge Resistor Module
AC/DC Charger
AC/DC Charger Module
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System Interconnect Board
Stripchart Recorder
PCMCIA Slots
Front Panel and Display
M Series Options
12 Lead Monitoring
Pulse Oximetry (SpO2)
End Tidal Carbon Dioxide (EtCO2)
Biphasic Module
Main System Board
The M Series electrical circuitry consists of several functional modules. Each module is physically located on one or
more of the printed wiring board assemblies (PWBA). In some cases, a functional module is distributed across several
assemblies within the unit. The main components of the M Series include:
• Display
• Main System Board
• High Voltage Module
• AC/DC Charger
• Battery Interconnect Module
• System Interconnect Module
• High Voltage Capacitor
Some units are equipped with M Series options. These options include:
• 12 Lead ECG
• Pulse Oximetry (SpO2)
• End Tidal Carbon Dioxide (EtCO2)
• Biphasic Defibrillation Waveform
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Refer to the M Series Interconnect diagram to identify unit components described in this manual.
MODULE
LOCATION
Main Central Processing Unit (CPU) and ECU
Main System PWBA
Pacer/Defib Charging and High Voltage
Control (Defib/Pace)
High Voltage Module
Biphasic Bridge Module
Internal Discharge Resistor
HV Module
AC or DC Power Supply/Battery Charger
AC Charger PWBA
DC Charger PWBA
Main System PWBA
ECG Front End Signal Acquisition
Main System PWBA
Battery Pack or Smart Battery™
Battery Interconnect PWBA
User Interface and Controls
Controls PWBA
PCMCIA Interface
System Interconnect, Main System
Stripchart Recorder
System Interconnect, Main System
Audio I/O (optional)
Main System PWBA
Audio Display PWBA
Controls PWBA
SpO2 (optional)
Pulse Oximetry PWBA
Isolated Power Supply PWBA
EtCO2 (optional)
EtCO2 PWBA
Isolated Power Supply PWBA
12 Lead (optional)
Main System PWBA
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Main System Board Functions
The Main System Board contains the major computing and control elements for the M Series unit. The printed wiring
board assembly (PWBA) receives signals from the front panel control switches, ECG input connectors and functional
modules, such as the AC/DC charger, pacer/defibrillator modules, stripchart recorder and PCMCIA card interfaces,
and if applicable, the SpO2 and EtCO2 modules. The Main System Board monitors and processes these input signals
to produce other signals that: 1) control the operation of other modules within the system; 2) drive the unit’s front panel
display and audio outputs and; 3) store data for retrieval via Summary Reports, PCMCIA cards and/ or a modem.
The electronic circuitry and software contained on the main system board performs the following major M Series
functions:
1. Main CPU and memory.
2. ECG signal acquisition and processing for ECG leads including,
•A/D conversion.
•ECG signal filtering.
•QRS detection.
•Implanted pacemaker detection.
•Heart Rate counting.
•Shockable ECG rhythm analysis.
3. Data communications with and control over the SpO2 and EtCO2 modules.
4. Control over and safety monitoring of pacer and defibrillator functions performed by the High Voltage module and
Biphasic Bridge module.
5. Physiological alarm processing.
6. Control switch monitoring for the front panel, accessory connection monitoring and control over the system
response to switch activation or accessory connection to the M Series.
7. Format and updating of the front panel display.
8. Primary power supplies for the unit.
9. Audio output generation and control (e.g., alarms, voice prompts, warning tones).
10. Audio signal processing, data compression and storage of voice recording data.
11. Real time clock and other time keeping functions.
12. Summary Report, 12 Lead ECG Reports data storage.
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13. Monitoring of battery status and control over Battery Charging functions performed by the AC or DC Charger
PWBA.
14. Data transmission to and control over the System Interconnect PCB functions, including the stripchart recorder
and the PCMCIA slot functions.
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Power Supply
The power supply converts DC power from a removable battery or the AC/DC Battery Charger module to voltages
required by the M Series hardware.
The power supply circuit converts the raw battery or the Charger PWBA output voltages of +8.5 VDC to +16 VDC
into the voltages shown in the table below, including load and line regulation.
VOLTAGE
DESCRIPTION
VOLTAGE VDC
(Nominal)
FUSE_PWR
Fused Input Power from
Battery/Charger
12
SW_PWR
Switched Input Power
after Power Switch
12
3VDD
+ 3.3 VDC Power for
Digital circuits
3.3
Switching @ 300 kHz
5VDD
+ 5.0 VDC Power for
Digital circuits
5.0
Switching @ 300 kHz
-5VSS
- 5.0 VDC Power for
Analog circuits
-5.0
Linear
12VEE
+ 12.0 VDC Power for
Analog circuits
12.0
Linear
15VDD
+ 15.0 VDC Power for
VPP and 12VEE
15.0
Switching @ 300 kHz
LCD_BS
LCD BIAS Power for
LCD display
- 18
Switching @ 100 kHz
3_3REF
+ 3.3 VDC Reference
3.3
Linear
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ECG Front End
The ECG front end provides an electrically isolated serial interface between the main system board functions and
patient interface ECG connectors. It performs the following:
• Analog ECG amplification and signal conditioning.
• Pacemaker pulse detection.
• ECG signals acquisition and analog to digital conversion.
• ECG 3/5/12-lead detection.
• ECG leads off detection.
• Front-end defibrillator protection.
• Isolated power conditioning.
• Patient impedance measurement via MFE or paddles.
Multifunction Electrode (MFE)/PADS (System Board and High
Voltage Module)
Selected for optimal performance for the application, a dedicated ECG amplifier with a limited bandwidth processes
the signal. It is then chopper modulated and coupled to the system side via an isolation transformer. On the system side,
the signal is synchronously demodulated, converted by a 10 bit A/D at 250 samples per second and digitally processed
by the main control unit of the system board.
To measure thoracic impedance, a high frequency (HF) measuring current passes through the patient’s chest and
measures the resulting voltage across the electrodes. After amplification, the impedance signal is synchronously
demodulated. It is then converted to a stream of pulses with frequency proportional to the measured impedance.
CPU and EPU
The Main System Board contains two microprocessors. A Motorola HC-11 single chip microprocessor is used to
acquire, convert and process ECG signals, (ECU). An Hitachi SH-3 RISC microprocessor acts as the system’s main
CPU. The SH-3 CPU and has an integrated on-chip multiplier, a cache memory, a memory management unit as well
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as data protection and virtual memory functions. It also has a timer, a real time clock, an interrupt controller, a serial
communication interface (SCI), and other peripheral functions necessary for the system operation. The memory
circuitry includes Flash ROM, internal flash non-volatile memory and DRAM.
The EPU acquires ECG data and runs the A/D convertor that sends data in the form of a serial stream to the CPU.
High Voltage Module
The High Voltage (HV) module includes the high voltage circuitry required for pacing and defibrillation, including the
defib charge circuitry, solid state patient relay, safety relay, defib capacitor, defib choke and front end protection
circuitry for the MFC ECG. There are two different types of HV Modules: a damped sinusoidal waveform HV module
and a Biphasic (HV) module.
The following table describes the high voltage board components:
Component
Function
Solid State Patient Relay
Controls the delivery of therapeutic energy to patient.
Safety Relay
Discharges Defib capacitor into the internal discharge
resistor when defibrillator is not in use.
Defibrillator Capacitor
Stores energy for therapy.
Defibrillator Choke
Conditions waveform delivered to the patient.(DSW)
Front End Protection Circuitry for
the MFC ECG
Protects ECG front end against defibrillator pulses.
Monophasic HV
Provides damped sinusoidal waveform therapeutic
energy. (Monophasic units only.)
Biphasic HV
Provides biphasic waveform therapeutic energy.
(Biphasic units only.)
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Defibrillator Charging and Discharging
The defibrillator charges and discharges high voltage capacitor energy. A user can initiate a charge in three ways by 1)
pressing the charge button on the front panel; or (2) pressing the charge button on the paddles; or (3) configuring unit
to charge automatically when it detects a shockable rhythm following an ECG analysis. To initiate a discharge, a user
depresses both shock buttons on the paddles or depresses a single shock button on the front panel.
The defibrillator circuit charges the high voltage capacitor to the energy level the user specifies.This circuit also
provides feedback to the main system board on the high voltage capacitor's voltage level and discharges the high
voltage capacitor energy through paddles or the universal cable. The defibrillator portion of the high voltage circuitry
is active only when the front panel selector switch is set to DEFIB.
Charging
The charging process starts when the Main System Board detects a charge request. The defibrillator circuits begin
charging the high voltage capacitor to the target voltage or energy that the user selects on the front panel display. The
Main System Board continuously monitors the capacitor voltage signal to ensure that the high voltage capacitor
charges at the proper rate. When the target voltage is reached, the Main System Board initiates a continuous beeper
tone to indicate that defibrillator is ready to discharge. The target energy level displays on the display screen.
The defibrillator holds the energy for 60 seconds for manual units and 15 seconds for AED units, refreshing the energy
level as necessary. An intermittent beep tone sounds during the last ten seconds (five seconds for AED unit) of the hold
period. After the 60 second period, if the defibrillator has not been discharged, the energy is dissipated into the internal
discharge resistor by closing the safety relay (XSAFREL). The unit discharges internally and displays a warning
message if it is not functioning properly.
Unlike previous ZOLL designs that isolated the patient from defib circuitry via an electromechanical patient relay, the
M Series utilizes a bank of silicon-controlled rectifiers (SCRs). As the defibrillator capacitor is charged, the voltage is
monitored via R1 - R4, which drive differential amplifiers referred to the system ground. These resistor dividers split
the capacitor voltage more or less equally above and below ground in order that the positive capacitor terminal is
approximately 2500 volts above ground, and the negative capacitor terminal is approximately 2500 volts below ground
(at 360J setting). The voltage at the patient electrodes is set by the divider RN1 and RN2. These networks are each 5X
25 M (125 M total) whose total resistance is specified to be 125 M +\- 1%. As a result, the patient is nominally at
ground and the hot switch bank is split into a ‘positive’ side and a ‘negative’ side.
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Discharging
Initiating a discharge provides voltage to the solid state patient relay and notification to the Main System Board through
the PADMON signal. The Main System Board then controls activation of the solid state patient relay (for DSW only).
Energy delivered to the patient goes through a wave shaping inductor to create a defibrillation waveform compliant
with AAMI Standards. When the patient discharge SCRs are deactivated, the safety relay closes to internally dissipate
any remaining energy.
If the M Series is in the self test mode, the energy is delivered internally. The microprocessor calculates the actual
delivered energy from the current waveform and displays a TEST OK message on the display, if the self test meets the
appropriate criteria. If the criteria are not met, a TEST FAILED message displays.
High Voltage Capacitor Monitor
Before charging the defibrillator, the High Voltage Capacitor monitor runs a self test to check the pace relay. The pace
relay controls the high voltage circuitry configuration either for generating pace pulses or for charging the high voltage
defibrillation capacitor.
The defibrillator capacitor is shunted for safety reasons with a resistor and relay to internally dissipate any energy
remaining. When the Main System Board initiates a charge, this relay opens by providing a low level on signal
XSAFREL. The safety relay is a biased reed switch. The relay is driven by Q318.
The pace relay driver is a grounded source switch Q308 that is biased on by R593. It is held off by Q330 when
XPACEREL is '1' false. When XPACEREL comes true, Q330 is turned off, and Q308 is no longer clamped off.
The high voltage capacitor is charged by converting the system battery voltage to a pulsed high voltage by way of
transformer T1. The basic operating frequency signal that is used to switch transistor Q1 providing current in the
primary windings of the transformer T1 originates in the system board’s gate array.
When the high voltage capacitor is charging, the Main System Board independently monitors the capacitor voltage
through signal VMON. If the Main System Board detects an improper level, it halts operation by setting SAFE high.
This disables the SCR discharge circuitry and flyback transformer drive.
The solid state patient relay discharges via the signal PATREL_DRV generated by XPATREL and Q304, Q323, and
Q322. PATREL_DRV is disabled when XPACE_SEL is at a logic low.
When the solid state patient relay activation completes, the Main System Board releases the XPATREL signal. Several
hundred milliseconds later, the safety relay closes to ensure the high voltage capacitor energy is completely dissipated.
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The Pacer circuit produces and delivers user-controllable pace pulses to the pacing electrodes. To initiate pacing, the
front panel switch is turned to PACER and the OUTPUT and RATE controls are set. Pacing current amplitude is
constant during the pulse and is determined by the position of the front panel PACER OUTPUT dial. Pacing pulse rate
is determined by the position of the front panel PACER RATE dial. The pacing pulse duration is fixed at 40
milliseconds.
Pacer/Defibrillator Control Signals
The Pacer/Defibrillator Control charges the high voltage capacitor to a voltage requested by the main system board in
response to user energy selections. It delivers defibrillator energy to the patient through the patient connector to the
paddles and pacer electrodes or multi-function electrodes (PADS). This control also generates pacing pulses at rates
and amplitudes requested by the main system board in response to user selections, controls damped sinusoidal
waveform and biphasic waveform defibrillation, and measures pace current and high voltage capacitor voltage by two
independent channels.
The following signals control the operation of the Pacer/Defibrillator subsystem:
ANALOG VOLTAGE
OPERATION
COMMENT
VCAP
Analog voltage spanning 0 2.5 V for 0 - 5000V capacitor
voltage.
Used by the defib charging
controller.
VMON
Analog voltage spanning 0 2.5 V for 0 - 5000V capacitor
voltage.
Used by the defib monitor.
VSENS
Pace duty cycle voltage,
scaled as 0 - 2.5 V for 0 100% duty cycle.
When multiplied by the
pulse width (as read from
PW_READ) battery
voltage is proportional to
the actual pace current.
VCTL
Analog control voltage scaled
0 - 2.5 V for pace current of 0
- 140 ma.
Only active in pace mode.
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ANALOG VOLTAGE
OPERATION
COMMENT
FET_MON
Analog voltage monitors the
condition of the discharge
transistors.
Provides a signature
voltage in case of a fault.
PAT_CUR
Bound on the range of 0 - 2.5
V and accommodates defib
currents of -50 to +100 A
Analog signal representing
the patient current during a
defib discharge.
LOGIC CONTROL
SIGNAL
OPERATION
XPWR_ENABLE:
This logic signal from the gate array enables the charging circuit
when true, and inhibits the charging circuit when false.
SAFE:
This logic control signal is generated by the Main System Board
to halt the pace/defib function in the event of a detected fault.
SHUTDOWN:
This logic signal is true during reset and fault conditions. (VCC
error, watchdog error, etc.) and halts operation of the PD
generator.
XPACE_ON:
This logic signal is generated by an optocoupler, and indicates
that the pace output circuit is active. It is '0' true when pace
current is flowing.
XSAFREL:
Logic signal from the GA that operates the safety relay when '0'
true.
XPACEREL:
Logic signal from the GA that operates the pace relay when '0'
true. XPATREL: Logic signal from the GA that operates the solid
state patient relay when '0' true.
XPAT_ENABLE:
Logic signal from the processor controlled by the monitor that
grants operation of the solid state patient relay. It is false during
pacing.
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LOGIC CONTROL
SIGNAL
OPERATION
XPACE_SEL:
Hardware only signal from the front panel switch that is at '0'
during pace. Used as an additional safety interlock on the solid
state patient relay so that operation of the relay during pacing is
additionally disabled.
Internal Discharge Resistor Module
The Internal Discharge Resistor Module contains the internal discharge resistor, and a means for dissipating the heat
generated by the internal discharge.
AC/DC Charger Module
The AC/DC Power/Battery Charger provides a universal (IEC 320) connection to the AC mains or to a DC source,
input line filtering and double-pole fusing (for a mains input), AC-DC and DC-DC conversion and isolation barrier
between the M Series and power sources. This module also provides the power necessary to run the M Series in any
mode of operation, as well as providing additional charging current to the battery. When the M Series is turned off but
connected to an external AC or DC source, the charger module controls battery charging currents and voltages needed
to charge the M Series battery. These voltages and currents are controlled in response to the main CPU signals that
manage the battery charging process.
System Interconnect Module
The system interconnect PWBA receives signals from the Main System Board and in turn controls operation of the
stripchart recorder and PCMCIA functions.
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Stripchart Recorder
The Stripchart Recorder module includes a microprocessor, serial interface to the main system board and circuitry
which drive the stripchart recorder’s motor and printhead in response to the main CPU signals. Based upon signals sent
by the main CPU, the recorder’s main processor drives the recorder stripchart motor, formats data for printing on the
chart and drives the printhead. It also detects when the sensor drawer is not properly fitted into the unit, when the paper
supply is out and needs to be refilled and the print head temperature.
PCMCIA Slots
The PCMCIA interface module supports two PCMCIA slots which accept Type I and/or Type II PCMCIA cards. These
cards may be read or written to. Data sent by the main CPU is passed to the installed PCMCIA card via the system
interconnect PWBA.
Front Panel and Controls PWBA
User Interface Module provides several functions that enable the user to operate the unit. The user interface has a
display monitor and three rotary selector switches. One selector switch is for three modes: pacer, monitor and
defibrillation. The two other knobs are for pacer output and pacer rate. The unit interface also has specific buttons for
defibrillation, including the ENERGY SELECT button, the CHARGE button, the ANALYZE button and the SHOCK
button. The five softkeys underneath the display provide specific operations depending on the unit’s configuration. The
other push buttons (from left to right) are used for volume control, monitor illumination, summary report, and code
markers. The CHARGER ON indicator displays the status of the unit’s power supply.
This input module on the front panel and the Main System Board provides a beeper for the AC/DC Power/Battery
Charger.
The Controls PWBA is physically located in the front panel assembly. Units that are equipped for voice recording
include a microphone and audio signal conditioning circuitry on the Controls PWBA.
M Series Options
This section describes four options for the M Series unit.
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Isolated Power Supply Module
The Isolated Power Supply Module provides electrically isolated power to the EtCO2 and SpO2 modules. It also
provides the electrically isolated serial communications and isolated control signals between the EtCO2 and SpO2
modules and the main system PWBA.
12 Lead Option
The ZOLL M Series 12 lead option is used to acquire ECG data needed to assist in the diagnosis of myocardial
infarction (“heart attack”), often caused by a coronary artery occlusion. The 12 lead ECG can be viewed on the display
one lead at a time in monitoring and diagnostic bandwidths and printed in the standard 4x3 format with 12
simultaneously acquired leads.
The 12 lead option provides for the recording, printing and automated analysis of 12 lead ECG using GE Marquette
12SL Analysis and supports the transmission of these reports by fax to a remote location, such as a hospital. In the
pre-hospital environment, the 12 lead reports can be faxed to a physician as the patient is en route to the Emergency
Department. As a result, the physician can initiate hospital accommodations immediately, such as activating the staff
of the cardiac catheterization lab, prior to the patient’s arrival and subsequent treatment. Or the patient may be treated
in the pre-hospital environment with thrombolytic agents.
The 12 lead cable is required to produce 12 lead reports. M Series unit must have the 12 lead option installed. All limb
leads and at least one V-lead must be connected to initiate a 12 lead acquisition. Printed 12 Lead bandwidth is user
configurable to be either 0.05-150 Hz (per AAMI EC11) or 0.05-40 Hz. The 0.05-40 Hz bandwidth selection is used
to reduce noise artifact in the high end of the diagnostic frequency range. Reports can be printed in a standard 4x3 or
Cabrera format. Faxed reports can be configured in a 2x6 format in addition to 4x3 and Cabrera formats.
The GE Marquette 12SL Analysis algorithm provides measurements of the 12 lead waveforms along with
interpretive statements. The algorithm is interpretive, not “diagnostic.” (A physician should always confirm
interpretive statements. A diagnosis requires a complete clinical assessment including other modalities, such as a
physical examination.) 12SL produces global waveform measurements as well as a measurement matrix containing
measurements on each lead. Both the interpretive statements and measurement matrix are configurable to be printed
or not printed.
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The acquired 12 lead with 12SL may be faxed to a remote location using landline or cellular phone technology.
Several PCMCIA fax modems are supported and the modem determines the specific phone compatibility. Cellular
phone support includes analog AMPS phones (in the U.S.) and GSM phones (internationally). The M-Series supports
Group 3 facsimile, Class 1 and Class 2. 12 lead reports may be re-printed or re-transmitted using the Patient Records
capability. Individual patient records may be selected based on patient ID, date, and time.
Pulse Oximetry (S P O 2 )
The ZOLL M Series pulse oximetry option enables the user to continuously, noninvasively, and painlessly monitor the
percentage of oxygen saturation of arterial hemoglobin at a peripheral measurement site (i.e.foot, toe or finger.)
The oximetry sensor contains two light emitting diodes, or LEDs, that transmit red and infrared light through the
body’s extremities. A photodetector receives the transmitted light. Oxygen saturated blood absorbs light differently
than unsaturated blood. Thus the amount of red and infrared light absorbed by the blood flowing through a suitable
peripheral area of the body, such as the finger in adults and the foot in neonates, can be used to calculate the ratio of
oxygenated hemoglobin to total hemoglobin in the arterial blood. The monitor displays this ratio as percent SpO2.
Normal values typically range from 95% to 100% at sea level.
The M Series uses a Masimo Pulse Oximetry Circuit Board which features a fundamentally distinct method of
acquiring, processing and reporting arterial oxygen saturation and pulse rate. The M Series’ SpO2 module (Masimo
Circuit Board) connects to the Masimo sensors and reports monitoring results (oxygen saturation, pulse rate, pulse
waveform, etc.) via a serial digital interface to the M Series system board. The M Series system provides isolated DC
power and serial communication to the SpO2 Board via the Isolated Power Supply board.
End Tidal Carbon Dioxide (EtCO 2 )
The ZOLL M Series EtCO2 Novametrix technology and Capnostat sensor option continually and noninvasively
monitors the patient’s carbon dioxide in respiratory gases and from these measurements computes End Tidal CO2 and
respiration rate. The unit can display and print a recording of EtCO2 readings, respiration rates, and capnograph
waveforms. In addition, the unit can configure an alarm to sound when the unit detects EtCO2 values and respiration
rates that are above or below acceptable ranges as set by the user. This option is intended for use in all critical
monitoring environments including ventilator support, patient transport, and anesthesia and is intended for monitoring
all patient types, including adult, pediatric, and neonatal.
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The EtCO2 option incorporates, without modification, the Novametrix respiratory carbon dioxide technology,
including a printed circuit board, and a patented and proprietary mainstream CO2 sensor and reusable/disposable
airway adapters. Carbon dioxide measurements are monitored by using a solid-state infrared Capnostat sensor which
works on the principles of infrared absorption.
The M Series system board software transmits commands to the Novametrix board to set parameters (averaging mode,
oxygen, and nitrous oxide compensation) and retrieves CO2 waveform, EtCO2, and respiration rate data. The M Series
software formats the data for output to the display and strip chart recorder. In addition, the M Series software performs
range checking of the Novametrix data to determine the presence of low or high EtCO2 and respiration rate alarm limit
violations. If the limits have been violated, the software issues audio and visual alarms.
The Capnostat mainstream sensor is attached to an airway adapter that connects to an endotracheal tube, similar
airway, or disposable mouthpiece. The sensor generates infrared light and beams it through the airway adapter to a
detector on the opposite side of the airway. As a result of respiration, CO2 flowing through the airway adapter absorbs
some of this infrared energy. The monitor relates the amount of detected energy to the amount of CO2 in the airway
adapter. The CO2 display reflects the maximum concentration of CO2 detected during expiration. End-Tidal Carbon
Dioxide (EtCO2) displays as a numerical value in millimeters of mercury (mmHg), percent (%), or kilopascals (kPa)
on the unit. In addition, a capnogram waveform may display underneath the ECG waveform.
The EtCO2 option uses Non-Dispersive Infrared (NDIR) absorption and dual wavelength ratiometric-True Single
Beam Optics. The Capnostat sensor contains the NDIR light source. Carbon dioxide, flowing in the airway adapter
as a result of respiration, absorbs some of this light energy.
Biphasic Waveform
The M Series Biphasic Waveform Defibrillator produces a Rectilinear BiphasicTM waveform similar to the chart shown
at the end of this section. The electrical energy is delivered in two successive current phases of opposite polarity. As
compared to the monophasic waveform, the biphasic waveform typically defibrillates with substantially less current
than the earlier monophasic waveform used by most defibrillators.
The M Series Biphasic Defibrillator system consists of circuitry and software located on the following assemblies:
1. Main System PWBA.
2. High Voltage Module.
3) Biphasic Bridge PWBA Module.
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The High Voltage module controls the monitoring, charging, and internal discharges of the defibrillator capacitor. The
Bridge module controls capacitor discharge, including waveform polarity control, patient current and voltage
monitoring during discharge and real-time control over defibrillator internal impedance to create the rectilinear
waveshape. The main CPU controls the waveform timing and resistor switching performed by the Bridge Module
based upon measured patient transthoracic impedance.
The Biphasic Bridge Assembly is constructed as two printed wire board assemblies (PWBAs) containing the power
and isolation circuits required to deliver a biphasic defibrillation pulse. These boards produce a defibrillation pulse
consisting of a positive current pulse followed by a negative current pulse. The positive portion of the pulse is shaped
to be rectilinear by switching resistors in series with the patient to compensate for droop in the capacitor voltage as it
delivers energy to the patient load.
The ZOLL Biphasic units produce a rectilinear waveform whose shape remains essentially constant from patient to
patient. The rectilinear biphasic waveform consists of a 6 millisecond, essentially constant current first phase followed
by a 4 millisecond, truncated exponential second phase. The first and second phases of the defibrillation waveform are
of opposite polarity and their amplitudes vary based on the user selected therapeutic energy level. The initial amplitude
of this waveform’s second phase is approximately equal to the first phases’s final amplitude. This wavefrom has an
integrated patient impedance measurement sensing pulse at the beginning of the waveform. The positive and negative
phases are separated by 100 sec
Electronics and software control the shape of the waveform’s first phase and compensate for different transthoracic
impedances to maintain an essentially constant current throughout the first phase.When the highest energy setting is
selected and patient impedance exceeds 85 ohms, the first phase of the waveform will droop. All other waveform
parameters (phase duration, inter-phase delay and integrated impedance measurement sensing pulse) remain the same.
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The following Rectilinear Biphasic Waveform is produced when the M Series with Biphasic option is discharged into
a 50 ohm load at the default energy setting of 120 joules. The vertical axis is in amperes; the horizontal axis is in
milliseconds. (See following diagram.)
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Appendix
Overview
This appendix includes:
• Interconnect Diagram for the M Series Monophasic Unit
• Interconnect Diagram for the M Series Biphasic Unit
• Interconnect Diagram for the M Series CCT Biphasic Unit
This appendix also includes the ZOLL M Series Maintenance Tests Checklist. Photocopy the checklist and use the
copy to record the results of the maintenance tests performed on the M Series equipment.
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Interconnect Diagram for the M Series Monophasic Unit
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Interconnect Diagram for the M Series Biphasic Unit
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Interconnect Diagram for the M Series CCT Biphasic Unit
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Index
Numerics
200J MAX BIPHASIC message 58
2PFE SpO2 Simulator 4
50J MAX message 58
A
AC Charger
photograph 78
AC or DC Power Supply 117
AC/DC Charger module 127
ADJUST ECG message 58
Advisory message test 30
ANALYSIS 58
ANALYSIS HALTED message 58
ANALYSIS RESTARTED message 58
AUDIO FAULT 13 message 59
AUDIO FAULT 136 59
AUDIO FAULT 136 message 59
Audio I/O 117
AUDIO NOT RECORDING message 59
AUDIO QUEUE FULL message 59
B
BATT 59
BATT HIGH CURRENT message 59
BATT LOW CURRENT message 59
BATT LOW VOLTAGE 59
BATT LOW VOLTAGE message 59
BATT OVERCHARGE message 59
Battery Interconnect Board
removing and reinstalling 90
Battery Interconnect Board Assembly 78
Battery Pack 117
Biphasic Bridge Assembly 79
Biphasic Module 122
BRIDGE TEST FAILED message 60
C
CABLE FAULT 60
CABLE FAULT message 60
CANNOT CHARGE 60
CANNOT CHARGE message 60
CHECK 61
CHECK PADS/POOR PAD CONTACTmessage 55
CHECK PULSE 61
CHECK PULSE message 61
CHECK RECORDER message 61
CHECK SPO2 SENSOR message 62
CHECK SPO2 SITE message 62
CLOCK FAULT 11 message 62
CLOCK FAULT 12 message 62
CLOCK FAULT 13 62
CLOCK FAULT 13 message 62
CO2 COMM ERROR message 62
CO2 SENSOR WARM UP 62
CO2 SENSOR WARM UP Message 62
CO2 SENSOR WARM UP message 62
CONFIRM MANUAL MODE message 62
Contacting Technical Service vii
Control Board Panel 84, 85
Conventions vii
D
DEFIB 55
Defib Capacitor 122
DEFIB DISABLED message 62
DEFIB FAULT 108 message 64
DEFIB FAULT 109 message 64
DEFIB FAULT 111 message 64
DEFIB FAULT 71 message 63
DEFIB FAULT 72 message 63
DEFIB FAULT 76 message 63
DEFIB FAULT 77 message 63
DEFIB FAULT 78 message 63
DEFIB FAULT 79 message 63
DEFIB FAULT 80 message 63
DEFIB FAULT 81 message 63
DEFIB FAULT 84 message 63
DEFIB FAULT 85 message 63
DEFIB FAULT 86 message 64
DEFIB FAULT 87 message 64
DEFIB FAULT 94 message 64
139
DEFIB FAULT 95 message 64
DEFIB FAULT 96 message 64
DEFIB NOT CHARGED message 64
DEFIB PAD SHORT 55
DEFIB PAD SHORT message 64
Defibrillator
charging and discharging 123
energy levels 123
Defibrillator Choke 122
Defibrillator self test 23
DISABLE SYNC message 65
DISCHARGE FAULT message 65
Discharging 124
Display 83
Dissassembly procedures
modules to disassemble 78
E
ECG FAULT 4 message 65
ECG FAULT 5 message 65
ECG Front End 121
ECG Front End Signal Acquisition 117
ECG LEAD OFF message 65
ECG LEADS OFF message 54
ECG TOO LARGE message 65
ECG TOO SMALL message 65
ECG V LEADS OFF message 65
ECG V2 LEAD OFF message 65
ECG V3 LEAD OFF message 65
ECG V4 LEAD OFF message 66
ECG V5 LEAD OFF message 66
ECG V6 LEAD OFF message 66
ECU CRC FAULT message 66
ENTER ACCESS CODE message 66
ERASING REPORT message 66
Error Message
50J MAX 58
ANALYSIS HALTED 58
ANALYSIS RESTARTED 58
AUDIO FAULT 136 59
AUDIO NOT RECORDING 59
BATT HIGH CURRENT 59
BATT OVERCHARGE 59
BRIDGE TEST FAILED 60
CABLE FAULT 60
CANNOT CHARGE 60
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CHECK RECORDER 61
CLOCK FAULT 12 62
CLOCK FAULT 13 62
CONFIRM MANUAL MODE 62
DEFIB DISABLED 62
DEFIB FAULT 108 64
DEFIB FAULT 109 64
DEFIB FAULT 111 64
DEFIB FAULT 71 63
DEFIB FAULT 72 63
DEFIB FAULT 76 63
DEFIB FAULT 77 63
DEFIB FAULT 78 63
DEFIB FAULT 79 63
DEFIB FAULT 80 63
DEFIB FAULT 81 63
DEFIB FAULT 84 63
DEFIB FAULT 85 63
DEFIB FAULT 86 64
DEFIB FAULT 87 64
DEFIB FAULT 94 64
DEFIB FAULT 95 64
DEFIB FAULT 96 64
DEFIB NOT CHARGED 64
DEFIB PAD SHORT 64
DISABLE SYNC 65
DISCHARGE FAULT 65
ECG FAULT 5 65
ECG LEAD OFF 65
ECG TOO LARGE 65
ECG V2 LEAD OFF 65
ECG V3 LEAD OFF 65
ECG V4 LEAD OFF 66
ECG V6 LEAD OFF 66
ECU CRC FAULT 66
ENTER ACCESS CODE 66
ERASING REPORT 66
EtCO2 COM ERROR 66
FAX DIALING 66
FAX DONE 66
FAX PREPARING 66
FAX SENDING 66
INSERT CARD 66
LOW BATTERY 67
NO QRS DETECT 67
RETRY ANALYSIS 70
EtCO2
Isolated Power Supply Assembly 129
EtCO2 COM ERROR message 66
EtCO2 Isolated Power Supply Assembly 117
F
FAX DIALING message 66
FAX DONE message 66
FAX PREPARING message 66
FAX SENDING message 66
Front End Protection Circuitry
High Voltage Module 122
description 115
main components 116
Main Selector Knob 76
Main System Board 117
Maintenance Tests
equipment 4
Messages 55
Module types 78
Monitoring
User interface module 128
Monophasic
High Voltage Module 122
N
G
NO QRS DETECT message 67
NO SHOCK AD message 67
NOISY ECG message 67
Notch filter test 20
Gel droop 56
H
High Voltage Capacitor monitor 124
High Voltage Module 122
Reinstalling 91, 94, 96
High Voltage Module Assembly 122
removing 94
High Voltage/Charger Assembly
removing 91
HV 122
I
INSERT CARD message 66
Interference
radio and cell phone vi
Internal Discharge Resistor Module 127
Components of Charge 127
Isolated Power Supply
EtCO2 module 78
function 129
L
Logic Control Signal 126
LOW BATTERY message 67
M
M Series 78
140
O
Ordering Replacement Parts
part numbers 112
P
PACER 125
Pacer Defibrillator function 125
PACER OUTPUT knob
pacing 125
Pacer/Output/Rate knob 76
Paddle Release Latch
Reinstalling 105
Removing 105
PCMCIA card slot
removing and reinstalling 104
PCMCIA Interface 117
Power Supply
MCU 120
Power supply
function 120
Print Head Assembly 103
Printer/Recorder Motor
removing and reinstalling 100
Page 151
M Series Service Manual
R
Radio frequency emissions vi
Radio Frequency Interference vi
reinstall 91, 94, 96, 105
Reinstalling
Control Board 85
High Voltage Module 91, 94, 96
Paddle Release Latch 105
System Interconnect Board 98
Upper Housing Assembly 86
ZIF Keeper 82
remove 92
Removing 96, 98
Battery Interconnect Board 90
High Voltage Capacitor Assembly 96
High Voltage Module Assembly 94
High Voltage/Charger Assembly 91
Paddle Release Latch 105
Printer/Recorder Motor 100
System Interconnect Board 98
RETRY ANALYSIS message 70
S
Safety Consideration v
Safety Precautions 77
Safety Relay 122
Safety Warnings v
SELECT 30J FOR TEST message 70
SELECT DEFIB MODE message 70
SELECT LIMB LEADS message 70
SELECT PADS message 71
Service
Address viii
Service Policy Warranty vii
United States
Outsideof the United States vii
SET CLOCK message 71
SET PACE RATE message 71
SHOCK ADVISED message 71
Solid State Patient Relay
High Voltage Module 122
SpO2 and EtCO2 modules with bracket
photograph 78
SpO2 Isolated Power Supply Assembly
117
SpO2 Module (without bracket)
photograph 79
STAND 72
STAND CLEAR 72
Storing pads 56
Strip Chart Recorder 117
System Board Assembly 87
photograph 78
SYSTEM FAULT 2 message 72
SYSTEM FAULT 5 message 72
SYSTEM FAULT 6 message 72
SYSTEM FAULT 7 message 72
System Interconnect Board 98
photograph 78
removing and reinstalling 98
Notch Filter 20
Pacer 31
Paddles 16
Power Supply 11
Shock 26
SpO2 Monitor 33
Synchronized Cardioversion 25
Troubleshooting
Displayed HR not accurate 57
Electronic interference 57
Wandering baseline 57
U
User Interface Module 128
V
V LEADS OFF Messages 55
Voltage
Power supply 120
W
Warnings v
T
Technical Service Department
Address 107
Test
3, 5, and 12 Leads 10
Advisory Message 30
Calibrating Pulses on Strip Chart 19
Check Summary Report 29
Defibrillator Self Test 23
EtCO2 Monitor 36, 51
Front Panel Button 7
Heart Rate Alarm 21
Heart Rate Display 18
Leakage Current 15
141
Z
ZERO CO2 ADAPTER message 73
ZERO CO2 SENSOR message 73
Zoll M Series Text Messages 54
ZOLL Medical Corporation
Address
Ordering parts for M Series 107
Service request number viii
ZOLL Technical Service Department vii
Fax number vii
Telephone number vii
Page 152
M Series Service Manual
142
Page 153
ZOLL M Series
Maintenance Test Checklist
Use this checklist to
record the results of the
M Series maintenance
tests, and keep it for
your records.
1.0 Physical Inspection
Pass Fail
1.1
1.2
1.3
1.4
Result of Check:
1.5
o No action required
1.6
o Minor problems corrected
1.7
o Disposable supplies
replaced
1.8
o Major problems identified
(unit out of service)
1.9
1.10
1.11
Additional Remarks
1.12
1.13
1.14
1.15
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
Serial No.
Location
Tester
Signature
2.0 Front Panel Button
Test
Pass Fail
2.1
2.2
2.3s
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2.13
2.14
2.15
2.16
2.17
2.18
2.19
2.20
2.21
2.22
2.23
2.24
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
3.0 Leads Test.
Pass Fail
3.1
3.2
3.3
3.4
o
o
o
o
o
o
o
o
N/A
o
o
o
o
4.0 Power Supply Test
Pass Fail
4.1
4.3
4.4
4.5
4.6
4.8
4.9
4.10
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
7.0 Heart Rate Display
Test
Pass Fail
7.1
o
o
o
o
o
o
o
o
o
o
Pass Fail
6.2
6.3
6.4
6.5
6.6
6.7
6.8
(Sheet 1 of 2)
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
8.0 Calibrating Pulses
Test
Pass Fail
8.2
o
11.4
o
11.5
o
Pass Fail
9.3
o
Pass Fail
10.1
10.2
10.3
10.5
10.6
10.7
10.8
o
o
o
o
o
o
o
o
11.6
N/A
10.9
10.10
10.11
10.12
10.13
10.14
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
11.7
o
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
o
10.0 Heart Rate Alarm
Test
o
N/A
o
11.3
N/A
9.0 Notch Filter Test
N/A
6.0 Paddles Test
6.1
o
Pass Fail
11.1
11.2
10.4
Pass Fail
o
11.0 Defibrillator
Self Test
N/A
N/A
5.0 Leakage Current
Test
5.1
Date
N/A
o
o
o
o
o
o
o
o
o
o
o
o
o
o
12.0 Synchronized
Cardioversion Test
Pass Fail
12.2
12.3
o
o
o
o
N/A
o
o
Page 154
ZOLL M Series
Maintenance Test Checklist
13.0 Shock Test
Pass Fail
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
13.10
13.11
13.12
13.13
13.14
13.15
13.16
13.17
13.18
13.19
13.20
13.21
13.22
13.23
13.24
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
14.0 Summary Report
Test
Pass Fail
14.1
14.2
14.3
14.4
o
o
o
o
o
o
o
o
N/A
o
o
o
o
15.0 Advisory Message
Test
Pass Fail
15.2
15.3
15.4
o
o
o
o
o
o
Location
Tester
Signature
17.0 SpO2 Monitor Test
Pass Fail
17.1
17.2
17.3
17.4
17.5a
17.5b
17.6a
N/A
o
o
o
Serial No.
17.6b
17.7
17.8
17.9
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
16.0 Pacer Test
16.2
16.3
16.4
16.5
16.6
16.7
16.8
16.9
16.10
16.11
16.12
16.13
o
o
o
o
o
o
o
o
o
o
o
o
o
Pass Fail
20.1
20.2
20.3
20.4
20.5
20.6
20.7
20.8a
20.8b
20.10a
20.10b
20.11
Pass Fail
16.1
20.0 IBP Monitoring Test
N/A
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
o
o
o
o
o
o
18.0 EtCO2 Monitor Test
Pass Fail
18.1
18.2
18.3
18.4
18.5
18.6
o
o
o
o
o
o
o
o
o
o
o
o
20.13
N/A
o
o
o
o
o
o
20.14
20.15
20.16
20.17
20.18
20.19
20.20
19.0 Temperature Test
Pass Fail
19.3
19.4
19.5
19.6
o
o
o
o
o
o
o
o
20.21
N/A
o
o
o
o
20.22
20.23
20.24
20.25
20.27
20.29
20.30
(Sheet 2 of 2)
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
20.32
20.33
20.35
20.36
20.38
20.39
Date
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
22.0 NIBP Monitor Test
Pass Fail
22.2
22.3
22.4
o
o
o
o
o
o
Pass Fail
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
o
o
o
o
o
23.0 NIBP Leak Test
Pass Fail
21.0 NIBP Transducer
Calibration
N/A
23.1
23.2
23.3
23.4
23.5
23.6
23.7
o
o
o
o
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o
o
o
24.0 Bluetooth Test
Pass Fail
24.1
24.3
24.9a
24.9b
24.9c
o
o
o
o
o
o
o
o
o
o
N/A
o
o
o
o
o