Service Manual
124 Pages
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ECG- 9010K ECG- 9020K
SERVICE MANUAL
cardiofax GEM ELECTROCARDIOGRAPH ECG-9010K ECG-9020K
0634-001307A
CONTENTS
Contents Conventions Used in this Manual and Instrument ... i Warnings, Cautions and Notes ... i Explanations of the Symbols in this Manual and Instrument ... i
Section 1
General ...1C.1 Introduction ... 1.1 Service Policy ... 1.2 Specifications ... 1.3 Panel Description ... 1.5 ECG-9010K Electrocardiograph ... 1.5 Top View ... 1.5 Operation Panel ... 1.6 Right Side Panel ... 1.7 ECG-9020K Electrocardiograph ... 1.8 Top View ... 1.8 Operation Panel ... 1.9 Right Side Panel ... 1.10 Composition ... 1.11 ECG-9010K Electrocardiograph ... 1.11 ECG-9020K Electrocardiograph ... 1.12 Location ... 1.13 Block Diagram ... 1.14 Connection Diagram ... 1.15
Section 2
Maintenance ...2C.1 Replacement ... 2.1 Periodic Replacement Schedule ... 2.1 Cleaning ... 2.2 Cleaning and Greasing Schedules ... 2.2 Cleaning the Paper Mark Sensor and Paper Empty Sensor ... 2.2 Cleaning the Motor Rotation Sensor and Greasing the Motor Gear and Gear Meshed with Motor Gear ... 2.3
Section 3
Troubleshooting and System Error Message ...3C.1 Troubleshooting Flowchart ... 3.1 Troubleshooting Table ... 3.4 Troubleshooting General Operation Problem ... 3.4 Troubleshooting Recording Problem ... 3.6 System Error Message ... 3.7
Service Manual ECG-9010/9020 Rev A
C.1
CONTENTS
Section 4
System Test, Adjustment and Setting ...4C.1 System Test ... 4.1 Overall ... 4.1 Calling up the Test Level 1 ... 4.2 Calling up the Test Level 2 ... 4.3 Entering the System Test Number ... 4.4 Executing the System Test ... 4.5 Quitting the System Test ... 4.6 Exiting the System Test Mode ... 4.6 Demonstration ... 4.7 Recorder ... 4.8 Thermal Head ... 4.11 Key ... 4.12 Memory ... 4.13 Single Memory Test Mode ... 4.14 Continuous Memory Test Mode ... 4.14 LCD/LED ... 4.15 Input Unit ... 4.17 Calibration ... 4.18 Communication ... 4.19 CRO/EXT1 ... 4.21 System Setup Initialization ... 4.23 ECG Findings List Recording ... 4.24 Recording Resolution Setting ... 4.25 Cue Mark Adjustment ... 4.26 Date and Time Setting ... 4.28 Setting the Date and Time ... 4.28
Section 5
Board/Unit Description ...5C.1 Block Diagram ... 5.1 Power Unit ... 5.2 ECG Control Board ... 5.2 Flash ROM Board ... 5.3 Inverter Board ... 5.3
Section 6
Disassembly and Assembly ...6C.1 Before You Begin ... 6.1 Warnings and Cautions ... 6.1 Required Tools ... 6.1 Board and Unit Location ... 6.2 Cable Connection ... 6.3 Removing the Top Casing ... 6.4 Removing the LCD Assy ... 6.5 Removing the Thermal Head Assy ... 6.6 Removing the Motor Assy ... 6.8 Removing the Speaker Assy ... 6.9
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Service Manual ECG-9010/9020 Rev A
CONTENTS Removing the Inverter Board ... 6.10 Removing the ECG Control Board ... 6.11 Removing the Power Unit ... 6.12 Replacing the Thermistor and Termistor Cable ... 6.14 Removing the Battery Terminal Assy ... 6.15 Removing the Magazine Assy ... 6.16 Removing the Bottom Casing ... 6.17 Replacing the Fuse on the Power Board ... 6.18 Replacing the Lithium Battery on the ECG Control Board ... 6.19
Section 7
Replaceable Parts List ...7C.1 General Parts List ... 7.2 Top Casing Assy ... 7.4 Top Casing Assy, RK-0007 for ECG-9010K ... 7.4 Top Casing Assy, RK-0009 for ECG-9020K ... 7.5 Thermal Head Assy, YZ-011H8 ... 7.6 Motor Assy, GC-0011 ... 7.7 Speaker Assy, RK-0005 ... 7.8 Magazine Assy, RH-0001 ... 7.9 Battery Terminal Assy, RK-0006 ... 7.10 LCD Assy, VL-0001 ... 7.11 Cart and Fixing Plate ... 7.12 Patient Cable Hanger ... 7.14
Section 8
Connector Pin Assignment ...8C.1 Power Unit ... 8.1 CN11 (to AC Inlet) ... 8.1 CN21 (to ECG control board) ... 8.1 CN31 (to Thermal Head) ... 8.1 CN51 (to Battery) ... 8.1 ECG Control Board ... 8.2 CNJ011 (to Thermal Head) ... 8.2 CNJ012 (to Inverter Board) ... 8.2 CNJ013 (to LCD) ... 8.3 CNJ021 (to Flash ROM Board) ... 8.3 CNJ031 (to SIO Connector) ... 8.5 CNJ032 (to Key Connector) ... 8.5 CNJ033 (to Speaker) ... 8.6 CNJ035 (to Power Unit) ... 8.7 CNJ036 (to Motor) ... 8.8 CNJ041 (to CRO Connector) ... 8.8 CNJ043 (to EXT INPUT Connector) ... 8.8 CNJ091 (to ECG Connector) ... 8.9 Flash ROM Board ... 8.10 CNJ021 (to ECG Control Board) ... 8.10
Service Manual ECG-9010/9020 Rev A
C.3
CONTENTS Inverter Board ... 8.12 CN1 (to ECG Control Borad) ... 8.12 CN2 (to LCD module) ... 8.12 External Input/Output Socket ... 8.13 SIO Socket ... 8.13 EXT Input and CRO Output ... 8.13
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Service Manual ECG-9010/9020 Rev A
Conventions Used in this Manual and Instrument Warnings, Cautions and Notes Warnings, cautions and notes are used in this manual to alert or signal the reader to specific information.
WARNING A warning alerts the user to the possible injury or death associated with the use or misuse of the instrument.
CAUTION A caution alerts the user to possible injury or problems with the instrument associated with its use or misuse such as instrument malfunction, instrument failure, damage to the instrument, or damage to other property.
NOTE A note provides specific information, in the form of recommendations, prerequirements, alternative methods or supplemental information.
Explanations of the Symbols in this Manual and Instrument The following symbols found in this manual/instrument bear the respective descriptions as given.
Cardiograph
Attention, consult operator’s manual
Input terminal for analog signal
Type CF applied part
Equipotential terminal
Output terminal for analog signal
Serial input/output terminal
Eject (magazine release button)
The CE mark is a protected conformity mark of European Community. The products herewith comply with the requirements of the Medical Device Directive 93/42/EEC.
Service Manual ECG-9010/9020 Rev A
i
Operation panel (for ECG-9010K onlly)
Alternating current
Age
Filter
“On” only for a part of equipment
REST/PERIODIC recording
Copy
“Off” only for a part of equipment
Paper speed
Calibration
Battery charging (lamp/on screen)
Gain
START/STOP recording
Battery check (lamp/on screen)
Paper feed
Automatic control
QRS sync lamp
Mark
Manual control
Alternating current
Age
Filter
“On” only for a part of equipment
Sex
Copy
“Off” only for a part of equipment
Mode
Battery charging (lamp/on screen)
Rhythm
Battery check (lamp/on screen)
Paper feed
Automatic control
Mark
Manual control
Operation panel (for ECG-9020K only)
ii
Calibration
START/STOP recording
Service Manual ECG-9010/9020 Rev A
Display (for ECG-9020K only)
QRS sync lamp
Patient cable
Attention, consult operator’s manual
Service Manual ECG-9010/9020 Rev A
Defibrillation-proof Type CF applied part
iii
Section 1 General
Introduction ... 1.1 Service Policy ... 1.2 Specifications ... 1.3 Panel Description ... 1.5 ECG-9010K Electrocardiograph ... 1.5 Top View ... 1.5 Operation Panel ... 1.6 Right Side Panel ... 1.7 ECG-9020K Electrocardiograph ... 1.8 Top View ... 1.8 Operation Panel ... 1.9 Right Side Panel ... 1.10 Composition ... 1.11 ECG-9010K Electrocardiograph ... 1.11 ECG-9020K Electrocardiograph ... 1.12 Location ... 1.13 Block Diagram ... 1.14 Connection Diagram ... 1.15
Service Manual ECG-9010/9020 Rev A
1C.1
1. GENERAL
Introduction This service manual provides useful information to qualified service personnel to understand, troubleshoot, service, maintain and repair the ECG-9010K/9020K Electrocardiograph (referred to as “the instrument” in this service manual). All replaceable parts or units of this instrument and its optional units are clearly listed with exploded illustration to help you locate the parts quickly. The System test, Adjustment and Setting section in this service manual describes the maintenance that should be performed by qualified service personnel. The Maintenance section in the operator’s manual describes the maintenance that can be performed by the user. The information in the operator’s manual is primarily for the user. However, it is important for service personnel to thoroughly read the operator’s manual and service manual before starting to troubleshoot, service, maintain or repair this instrument. This is because service personnel needs to understand the operation of the instrument in order to effectively use the information in the service manual.
Service Manual ECG-9010/9020 Rev A
1.1
1. GENERAL
Service Policy Nihon Kohden Corporation’s basic policy for technical service is to replace faulty units, printed circuit boards or parts. We do not support component-level repair of boards and units outside the factory for the following reasons: • A special facility is necessary to repair multi-layer boards because most of the components on the board are SMD (surface mount devices) and most of the circuits employ a gate array method. • To fulfill safety certification requirements, a special facility is necessary to verify safety as medical equipment after the power unit is repaired.
NOTE • When ordering parts or accessories from your nearest Nihon Kohden Corporation’s distributor, please quote the NK code number and part name which is listed in this service manual, and the name or model of the unit in which the required part is located. This will help us to promptly attend to your needs. • Always use parts and accessories recommended or supplied by Nihon Kohden Corporation to assure maximum performance from your instrument.
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Service Manual ECG-9010/9020 Rev A
1. GENERAL
Specifications ECG input Input impedance Electrode offset tolerance Input unit protection Standard sensitivity Common mode rejection ratio Frequency response Waveform data processor Sample rate AC line filter High-cut filter EMG filter Time constant Waveform status detection Sensitivity selection
10 MΩ or more ±500 mV or more Isolated and defibrillator protected 10 mm /mV ±2% 100 dB or more 0.05 to 150 Hz (– 3 dB or more)
500 samples/s (input unit: 8,000 samples/s) 50/60 Hz, OFF 75, 100, 150 Hz 25/35 Hz 3.2 s or more Electrode detachment (polarization voltage), Noise (high frequency) 5, 10 , 20 mm/mV
LCD (monochrome with CCFT backlight) (for ECG-9020K only) Size 5.6 inch Number of dots 320 × 240 ECG waveform 3 channel:Real time 12 ECG lead complexes 6 channel: 2.5 s Rhythm lead: 10 s Displayed data Waveform, patient information, recording settings, operation mode, heart rate, QRS sync mark, error message, electrode detachment, noise Recorder Printing method Printing density Scanning line density Recording width Number of recording channels Paper speed Printed data
Mechanical noise External input/output External input Signal output Serial I/O
Service Manual ECG-9010/9020 Rev A
High resolution thermal printer head 200 dpi (8 dots/mm) 1 ms 104 mm 2, 3, 4, 6 10, 12.5, 25, 50 mm/s (10 and 12.5 mm/s available for ECG-9020K only) Program type, version, date and time, paper speed, sensitivity, lead name, filter, hospital name, patient information, timing mark, event mark, electrode detachment, noise 48 dB or less at paper speed 25 mm/s
10 mm/0.5 V ±5%, input impedance 100 kΩ or more 0.5 V/1 mV ±5%, output impedance 100 Ω or less Communication method: RS-232C Baud rate: 2400, 4800, 9600, 19200, 38400, 57600, 115200 1.3
1. GENERAL Power requirement Line voltage Line frequency Power input Power consumption Built-in battery) (LCT-1912ANK)
100 to 127 VAC, 220 to 240 VAC ±10% 50 or 60 Hz Up to 120 VA 49 W or less Voltage: 12 V Current consumption:
Environment Operating temperature Operating humidity Operating atmospheric pressure Storage duration and temperature (Depends on the battery)
6A or less
10 to 40°C 25 to 90% RH 70 to 106 kPa
Storage humidity Storage atmospheric pressure
2 weeks or less: Between 2 weeks and One year: Over one year: 10 to 95% RH (non condensing) 70 to 106 kPa
Recording paper storage temperature Recording paper storage humidity Electromagnetic compatibility Other
−20 to 50°C 25 to 90% RH Class B Indoor portable
−20 to 65°C −15 to 40°C −15 to 25°C
Dimensions and weight Dimensions 280 W × 52 H × 216 D mm (excluding protrusions) Weight ECG-9010K: approx. 2.5 kg (with battery), approx. 1.9 kg (without battery) ECG-9020K: approx. 2.9 kg (with battery), approx. 2.1 kg (without battery) Safety Safety standard: IEC601-1 Amendment 1,2 IEC601-2-25 Type of protection against electric shock: AC power: Class I Batty power: Internally powered equipment Degree of protection against electric shock: Defibrillator proof type CF applied part when patient cable BJ-901D, BJ-902D or BJ-903D is used Degree of protection against harmful ingress of water: Ordinary equipment Degree of safety of application in the presence of a flammable anaesthetic mixture with air, oxygen or nitrous oxide: Not suitable for use in the presence of a flammable anaesthetic mixture with air, oxygen or nitrous oxide Mode of operation: Continuous
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Service Manual ECG-9010/9020 Rev A
1. GENERAL
Panel Description ECG-9010K Electrocardiograph
Top View
3
2
1
Name 1. Operation panel 2. Magazine (recording paper container) 3. Magazine release button
Service Manual ECG-9010/9020 Rev A
1.5
1. GENERAL Operation Panel
14
13
18 4
5 6
7
15
16
17
8
9
10
11
12
Name 4. Battery charge lamp 5. Battery operation lamp 6. AC power lamp 7. POWER key/lamp 8. FEED/MARK key 9. FILTER key/lamp 10. COPY/CAL key/lamp 11. START/STOP key/lamp 12. AUTO/MANUAL key/lamp 13. REST/PERIODIC key/lamp 14. AGE key/lamp 15. SPEED key/lamp 16. GAIN key/lamp 17. LEAD keys/lamp 18. QRS sync lamp
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Service Manual ECG-9010/9020 Rev A
1. GENERAL Right Side Panel
mark, refer to the descriptions for the Right Side Panel in Section 1 For the “Panel Descriptions” of the ECG-9010K Operator’s Manual.
19
20
22
21
23
24 25
Name 19. Patient input connector 20. EXT-IN connector 21. CRO-OUT 22. SIO connector 23. AC power cord socket 24. Battery compartment 25. Equipotential ground terminal
Service Manual ECG-9010/9020 Rev A
1.7
1. GENERAL
ECG-9020K Electrocardiograph
Top View
3
2
4
1
1. 2. 3. 4.
1.8
Name Operation panel Magazine (recording paper container) Magazine release button LCD screen
Service Manual ECG-9010/9020 Rev A
1. GENERAL Operation Panel
16
17
18
5
6 7
8 9
10
11
12
13
14
15
Name 5. Battery charge lamp 6. Battery operation lamp 7. AC power lamp 8. POWER key/lamp 9. MODE key 10 RHYTHM key/lamp 11. FEED/MARK key 12. FILTER key/lamp 13. COPY/CAL key/lamp 14. START/STOP key/lamp 15. AUTO/MANUAL key/lamp 16. F1, F2, F3 function keys 17. AGE key 18. SEX key
Service Manual ECG-9010/9020 Rev A
1.9
1. GENERAL Right Side Panel
mark, refer to the descriptions for the Right Side Panel in Section 1 For the “Panel Descriptions” of the ECG-9020K Operator’s Manual.
19
20
22
21
23
24 25
Name 19. Patient input connector 20. EXT-IN connector 21. CRO-OUT 22. SIO connector 23. AC power cord socket 24. Battery compartment 25. Equipotential ground terminal
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Service Manual ECG-9010/9020 Rev A
1. GENERAL
Composition ECG-9010K Electrocardiograph
ECG-9010K
RK-0002
Bottom Casing Assy
RK-0003
Internal Parts GC-0011
Motor Assy
RH-0001
Magazine Assy
RK-0004
Thermal Head Assy
RK-0005
Speaker Assy
RK-0006
Battery Terminal Assy
RK-0007
ECG-9010K Top Casing Assy
SC-903D
Power Unit
UT-23561
ECG Control Board
UT-2357
Flash ROM Board
KD-103E
Cart
KH-801E
Patient Cable Hanger
DI-106D
Fixing Plate for Cart
YC-901D
Carrying Case
(Optional)
• •
Service Manual ECG-9010/9020 Rev A
To order a replacement assembly above, use the Code No. To order a replacement component inside an assembly, refer to “Section 7 Replaceablet Parts List”.
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