Model BSM-2300 A, K Service Manual Rev B

BSM- 2301A BSM- 2301K BSM- 2303K BSM- 2304A WS- 231P QI- 231P QI- 236P

BEDSIDE MONITOR BSM-2300A/K

0634-001878B

Model: BSM-2300A/K Manual code no.: 0634-001878B

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CONTENTS

Contents EMC Related Caution ... i Conventions Used in this Manual and Instrument ... iii Warnings, Cautions and Notes ... iii Explanations of the Symbols in this Manual and Instrument ... iv On panels ... iv On screen ... v Others ... v

Section 1

General...1C.1 Introduction ... 1.1 General Information on Servicing ... 1.2 Service Policy, Service Parts and Patient Safety Checks ... 1.4 Service Policy ... 1.4 Service Parts ... 1.4 Patient Safety Checks ... 1.5 Specifications ... 1.6 Display ... 1.6 Sound ... 1.6 Alarm ... 1.6 ECG ... 1.6 Respiration (Transthoracic impedance pneumography) ... 1.7 SpO2 on BSM-2301A/K and BSM-2303K ... 1.8 SpO2 on BSM-2304A ... 1.8 Non Invasive Blood pressure, NIBP ... 1.8 Temperature ... 1.9 Multi-parameter Amplifier ... 1.9 Invasive Blood Pressure, IBP ... 1.9 Respiration (Thermistor method) ... 1.9 Expired Carbon Dioxide Tension, CO2 ... 1.10 Trendgraph ... 1.10 Vital Signs List ... 1.10 Recorder Module (optional, WS-231P) ...1.10 Interface (optional, QI-231P) ... 1.11 Interface (optional, QI-236P) ... 1.11 External Output ...1.11 Power Requirement ...1.11 Clock Accuracy ...1.12 Environment ...1.12 Dimensions and Weight (approximate) ...1.12 Electromagnetic Compatibility ... 1.12 Safety Standard ...1.12 Composition ...1.13 Panel Descriptions ...1.14

Service Manual BSM-2300

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CONTENTS Front Panel ... 1.14 Left Side Panel ... 1.16 BSM-2301A/K and BSM-2303K ... 1.16 BSM-2304A ... 1.17 Right Side Panel ... 1.18 Storage and Transport ... 1.19 Storage ... 1.19 Transport ... 1.19 Hard Keys and Soft Keys ...1.20 Hard Keys ... 1.20 Soft Keys ... 1.20 Upgrading the System Software and Changing Language on the Screen ... 1.21 Procedure ... 1.21 Block Diagram ... 1.22 BSM-2300 ... 1.22 WS-231P Recorder Module ... 1.23 QI-231P Interface ... 1.24 QI-236P Interface ... 1.25

Section 2

Troubleshooting ...2C.1 General ... 2.1 Power-Related Problems ... 2.2 Display Problems ... 2.3 Sound Problems ... 2.4 Key Operation Problems ... 2.4 ECG and Respiration by Impedance Method Problems ... 2.5 SpO2 Problems ... 2.6 Non-invasive Blood Pressure Problems ... 2.7 Temperature Problems ... 2.8 Other Vital Sign Input Problems ... 2.9 Option Problems ... 2.10 Recording Problems ... 2.11 QI-231P Interface Problems ... 2.13 QI-236P Interface Problems ... 2.13

Section 3

Diagnostic Check ...3C.1 Introduction ... 3.1 Power On Self Check ... 3.2 Calling Up the DIAGNOSTIC CHECK Screen ... 3.4 Calling Up the Error History ... 3.5 Error Codes ... 3.5 System Errors ... 3.6 Initializing the System ... 3.7 Performing Manual Check and Other Checks ... 3.8 Calling Up the MANUAL CHECK MENU Screen ... 3.9 CPU Check Menu Items ... 3.10 ROM Check ... 3.10

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Service Manual BSM-2300

CONTENTS RAM Check ...3.11 Hard Key Check ...3.12 Touch Key Check ...3.13 Sound Check ... 3.14 ALARM INDICATOR Check ...3.15 OTHER Check ...3.16 MEMORY CARD Check ...3.17 Backlight Check ...3.18 CRTC Check Menu Items ...3.19 GRAPHIC MEMORY Check and CHARACTER MEMORY Check ...3.19 GRAPHIC DRAW Check ... 3.20 CHARACTER DRAW Check ... 3.22 IMAGE DRAW Check ...3.24 DPU Check Menu Items ...3.25 D/A ADJUST ... 3.25 AD TEST ... 3.26 ZB I/F Check ... 3.27 NIBP Check ...3.28 DPU ROM Check ...3.38 DPU RAM Check ...3.39 Power FREQ ... 3.40 APU Check Menu Items ...3.41 APU ROM Check ...3.41 APU RAM Check ... 3.42 COM Check Menu Items ...3.43 WS RECORDER Check ...3.43 SERIAL I/F Check ...3.44 NETWORK CARD Check ...3.45 BATTERY Check ... 3.47 MULTI PARAMETER UNIT Check ...3.48 ECG Check ...3.49 OUTPUT Check ...3.49 Recorder and Control Block Checks ... 3.50 SELF-TEST-PRO No.1 ... 3.50 SELF-TEST-PRO No.2 ... 3.51 SELF-TEST-PRO No.3 ... 3.52 Calibration of Touch Screen ...3.53

Section 4

Board/Unit Description ...4C.1 MAIN Board ... 4.1 Analog Board ... 4.5 ECG/RESP Block ... 4.5 SpO2 and MP Blocks ... 4.6 SpO2 Block ... 4.6 MP Block ... 4.7 IBP Board ... 4.8 NIBP Board ... 4.9 Power Supply Block ...4.10

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C.3

CONTENTS LCD Unit ... 4.11 Recorder Module (Option) ... 4.12 REC MAIN Board ... 4.12 Recorder Unit ... 4.13 Interface (Option, QI-231P) ... 4.14 ECG, QRS Synch or Alarm Trigger Signal Output Block ... 4.15 Serial Data Communication Relay Block ... 4.15 RGB Relay Block ... 4.15 Interface (Option, QI-236P) ... 4.16 ECG and QRS Synch Trigger Signal Output Block ... 4.17 RGB Relay Block ... 4.17

Section 5

Disassembly and Assembly ...5C.1 Removing the Chassis Block ... 5.1 Replacing the MAIN Board ... 5.6 Replacing the Analog Board ... 5.10 Replacing the NIBP Board ... 5.12 Replacing the IBP Board ... 5.13 Replacing the Inverter Board ... 5.14 Replacing the LCD Unit ... 5.16 Replacing the Lithium Battery ... 5.18 Replacing the Backlight Lamp Unit ... 5.19 Replacing the Battery Pack ... 5.22 When the Recorder Module is Not Attached to the Instrument ... 5.22 When the Recorder Module is Attached to the Instrument ... 5.24 Replacing the IO ANALOG OUT or IO CT OUT Board of the Optional Interface ... 5.26

Section 6

Maintenance ...6C.1 To Be Replaced Periodically ... 6.1 Required Tools ... 6.1 Measuring and Test Equipment ... 6.2 Maintenance Check Items and Schedule ... 6.3 External ... 6.3 Input Conditions ... 6.3 Operation ... 6.4 Display ... 6.4 Recorder ... 6.4 Interface ... 6.5 Vital Sign Parameters ... 6.5 Power ... 6.6 Data Backup ... 6.6 Safety ... 6.7 Others ... 6.7

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Service Manual BSM-2300

CONTENTS

Section 7

Adjustment ...7C.1 Sensors in the Recorder Unit ... 7.1 Adjusting the Output Voltages with Digital or Analog Multimeter ... 7.1

Section 8

Replaceable Parts List ...8C.1 Bedside Monitor BSM-2300 ... 8.2 Optional Recorder Module WS-231P ... 8.8 RG-922P Recorder Unit ... 8.10 QI-231P Interface ...8.12 QI-236P Interface ...8.13

Section 9

Connector Pin Assignment ...9C.1 MAIN Board ... 9.1 CN0201 (for Alarm Indicator board) ... 9.1 CN0202 (for CN101 on Operation board) ... 9.1 CN0204 (for CN001 on REC MAIN board of optional recorder module) ... 9.2 CN0205 (for CN002 on REC MAIN board of optional recorder module) ... 9.3 CN401 (for power supply unit) ... 9.3 CN0601 (for program card or network card) ... 9.4 CN0701 (for touch screen) ... 9.5 CN0801 (AUX socket) ... 9.5 CN0802 (for Inverter board) ... 9.6 CN1001 (for LCD unit) ... 9.7 CN1401 (for rechargeable battery pack) ... 9.8 CN1501 (for CN901 on Analog board) ... 9.8 CN1502 (for CN0101 on NIBP board) ... 9.9 Alarm Indicator Board ... 9.10 CN0101 (for CN0201 on MAIN board) ... 9.10 Analog Board ...9.11 CN502 ...9.11 CN601 (for CN001 on IBP board) ...9.11 CN602 ...9.12 CN901 (for CN1501 on MAIN board) ...9.12 CN902 (for ZB-900P transmitter) ...9.12 NIBP Board ...9.13 CN0101 (for CN1502 on MAIN board) ... 9.13 CN0102 (for Hall Sensor board) ...9.13 CN0103 (for line frequency detection coil wire) ... 9.13 CN0104 (for pediatric valve) ... 9.13 CN0105 (for safety circiut valve) ...9.13 CN0106 (for pump) ... 9.14 CN0107 (for speaker) ...9.14 CN0108 (for adult valve) ... 9.14 IBP Board ...9.14 CN001 (for CN601 on Analog board) ...9.14 Operation Board ... 9.15 CN101 (for CN0202 on MAIN board) ...9.15 CN102 (for CN103 on Power SW board) ...9.15

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CONTENTS Power SW Board ... 9.16 CN0103 (for CN102 on Operation board) ... 9.16 Inverter Board ... 9.16 CN1 (for CN0802 on MAIN board) ... 9.16 CN2 (for backlight) ... 9.16 Hall Sensor Board ... 9.17 CN101 (for CN102 on NIBP board) ... 9.17 REC MAIN Board ... 9.17 CN001 (for CN0204 on MAIN board) ... 9.17 CN002 (for CN0205 on MAIN board) ... 9.17 CN003 (for CN103 on REC Power board) ... 9.17 REC Key Board ... 9.18 CN201 (for CN104 on REC Power board) ... 9.18 REC Power Board ... 9.18 CN101 (for recorder unit) ... 9.18 CN102 (for recorder unit) ... 9.19 CN103 (for CN003 on REC MAIN board) ... 9.19 CN104 (for CN201 on REC Key board) ... 9.19 IO ANALOG OUT Board ... 9.20 CN001 ... 9.20 CN002 ... 9.20 CN005 ... 9.20 CN003 ... 9.21 CN004 ... 9.21 IO CT OUT Board ... 9.22 CN002 ... 9.22 CN003 ... 9.22

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Service Manual BSM-2300

EMC RELATED CAUTION This equipment and/or system complies with the International Standard IEC60601-1-2 for electromagnetic compatibility for medical electrical equipment and/or system. However, an electromagnetic environment that exceeds the limits or levels stipulated in the IEC60601-1-2, can cause harmful interference to the equipment and/or system or cause the equipment and/or system to fail to perform its intended function or degrade its intended performance. Therefore, during the operation of the equipment and/or system, if there is any undesired deviation from its intended operational performance, you must avoid, identify and resolve the adverse electromagnetic effect before continuing to use the equipment and/or system. The following describes some common interference sources and remedial actions: 1. Strong electromagnetic interference from a nearby emitter source such as an authorized radio station or cellular phone: Install the equipment and/or system at another location if it is interfered with by an emitter source such as an authorized radio station. Keep the emitter source such as cellular phone away from the equipment and/or system. 2. Radio-frequency interference from other equipment through the AC power supply of the equipment and/ or system: Identify the cause of this interference and if possible remove this interference source. If this is not possible, use a different power supply. 3. Effect of direct or indirect electrostatic discharge: Make sure all users and patients in contact with the equipment and/or system are free from direct or indirect electrostatic energy before using it. A humid room can help lessen this problem. 4. Electromagnetic interference with any radio wave receiver such as radio or television: If the equipment and/or system interferes with any radio wave receiver, locate the equipment and/or system as far as possible from the radio wave receiver. If the above suggested remedial actions do not solve the problem, consult your Nihon Kohden Corporation subsidiary or distributor for additional suggestions.

The CE mark is a protected conformity mark of the European Community. The products herewith comply with the requirements of the Medical Device Directive 93/42/EEC. The CE mark only applies to the BSM-2300K bedside monitor. This equipment complies with International Standard IEC60601-1-2 (1993) which requires CISPR11, Group 1, Class B. Class B EQUIPMENT is equipment suitable for use in domestic establishments and in establishments directly connected to a low voltage power supply network which supplies buildings used for domestic purposes.

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Service Manual BSM-2300

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.

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Explanations of the Symbols in this Manual and Instrument The following symbols found in this manual/instrument bear the respective descriptions as given. On panel Symbol

Description

Symbol

Description

AC operation

Data input/output

“On” only for a part of instrument

Input/output terminal

“Off” only for a part of instrument

Output terminal

Battery operation

Alternating current

Battery charging

Equipotential terminal

Alarm suspend

Year of manufacture

NIBP

Serial number

NIBP interval

IPX4

Splash-proof equipment

NIBP start

IPX7

Watertight equipment

NIBP stop

Protective earth

Menu

High voltage

Home (monitoring screen) Attention, consult operator’s manual

The CE mark is a protected conformity mark of the European Community. The products herewith comply with the requirements of the Medical Device Directive 93/42/EEC.

Defibrillation-proof type CF applied part

Record start/stop (on the WS-231P recorder module)

Defibrillation-proof type BF applied part

Out of paper (on the WS-231P recorder module)

The CE mark only applies to BSM-2301K/2303K monitors.

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Service Manual BSM-2300

On screen Symbol

Description

Symbol

Description

Alarm silence with remaining minutes

QRS/pulse sync mark

Alarm off

Respiration sync mark

Alarm recording off

Value out of range

Recording

Current measuring value

Paper magazine open

Adjust setting/Scroll data

Out of paper

Touch screen calibration mark

Network communicating

Waveform cascaded

Others Symbol

Description Recycle (On battery pack)

Ni-MH

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Section 1 General

Introduction ... 1.1 General Information on Servicing ... 1.2 Service Policy, Service Parts and Patient Safety Checks ... 1.4 Service Policy ... 1.4 Service Parts ... 1.4 Patient Safety Checks ... 1.5 Specifications ... 1.6 Display ... 1.6 Sound ... 1.6 Alarm ... 1.6 ECG ... 1.6 Respiration (Transthoracic impedance pneumography) ... 1.7 SpO2 on BSM-2301A/K and BSM-2303K ... 1.8 SpO2 on BSM-2304A ... 1.8 Non Invasive Blood pressure, NIBP ... 1.8 Temperature ... 1.9 Multi-parameter Amplifier ... 1.9 Invasive Blood Pressure, IBP ... 1.9 Respiration (Thermistor method) ... 1.9 Expired Carbon Dioxide Tension, CO2 ... 1.10 Trendgraph ... 1.10 Vital Signs List ... 1.10 Recorder Module (optional, WS-231P) ...1.10 Interface (optional, QI-231P) ... 1.11 Interface (optional, QI-236P) ... 1.11 External Output ...1.11 Power Requirement ...1.11 Clock Accuracy ...1.12 Environment ... 1.12 Dimensions and Weight (approximate) ...1.12 Electromagnetic Compatibility ... 1.12 Safety Standard ...1.12 Composition ... 1.13 Panel Descriptions ...1.14 Service Manual BSM-2300

1C.1

Front Panel ... 1.14 Left Side Panel ... 1.16 BSM-2301A/K and BSM-2303K ...1.16 BSM-2304A ...1.17 Right Side Panel ...1.18 Storage and Transport ... 1.19 Storage ... 1.19 Transport ... 1.19 Hard Keys and Soft Keys ... 1.20 Hard Keys ... 1.20 Soft Keys ... 1.20 Upgrading the System Software and Changing Language on the Screen ...1.21 Procedure ...1.21 Block Diagram ... 1.22 BSM-2300 ... 1.22 WS-231P Recorder Module ...1.23 QI-231P Interface ... 1.24 QI-236P Interface ... 1.25

1C.2

Service Manual BSM-2300

1. GENERAL

Introduction This service manual provides useful information to qualified personnel to understand, troubleshoot, service, maintain and repair the BSM-2300 bedside monitor (referred to as “the instrument” in this service manual). All replaceable parts or units of this instrument are clearly listed with exploded illustration to help you locate the parts quickly. The “Maintenance” 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 need to understand the operation of the instrument in order to effectively use the information in the service manual.

Service Manual BSM-2300

1.1

1. GENERAL

General Information on Servicing Note the following information when servicing the instrument.

CAUTION Safety • There is the possibility that the outside surface of the instrument, such as the operation keys, could be contaminated by contagious germs, so disinfect and clean the instrument before servicing it. When servicing the instrument, wear rubber gloves to protect yourself from infection. • There is the possibility that when the lithium battery is broken, a solvent inside the lithium battery could flow out or a toxic substance inside it could come out. If the solvent or toxic substance touches your skin or gets into your eye or mouth, immediately wash it with a lot of water and see a physician. Liquid Ingress The instrument is not drip-proof, so do not install the instrument where water or liquid can get into or fall on the instrument. If liquid accidentally gets into the instrument or the instrument accidentally drops into liquid, disassemble the instrument, clean it with clean water and dry it completely. After reassembling, verify that there is nothing wrong with the patient safety checks and function/performance checks. If there is something wrong with the instrument, contact your Nihon Kohden representative to repair. Environmental Safeguards Depending on the local laws in your community, it may be illegal to dispose of the lithium battery and CRT unit in the regular waste collection. Check with your local officials for proper disposal procedures. Disinfection and Cleaning To disinfect the outside surface of the instrument, wipe it with a nonabrasive cloth moistened with any of the disinfectants listed below. Do not use any other disinfectants or ultraviolet rays to disinfect the instrument. - Chlorohexidine gluconate solution: 0.5% - Benzethonium chloride solution: 0.2% - Glutaraldehyde solution: 2.0% - Benzalkonium chloride: 0.2% - Hydrochloric alkyldiaminoethylglycine: 0.5%

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Service Manual BSM-2300

1. GENERAL Transport • Use the specified shipment container and packing material to transport the instrument. If necessary, double pack the instrument. Also, put the instrument into the shipment container after packing so that the buffer material does not get into the inside of the instrument. • When transporting the board or unit of the instrument, be sure to use a conductive bag. Never use an aluminum bag when transporting the power board, power unit or board on which a lithium battery is mounted. Also, never use a styrene foam or plastic bag which generates static electricity to wrap the board or unit of the instrument. Handling the Instrument • Because the outside surface of the instrument is made of resin, the outside surface of the instrument is easily damaged. So when handling the instrument, remove clutter from around the instrument and be careful to not damage the instrument or get it dirty. • Because most of the boards in the instrument are multilayer boards with surface mounted electrical devices (SMD), when removing and soldering the electrical devices, a special tool is required. To avoid damaging other electrical components, do not remove and solder SMD components yourself. Measuring and Test Equipment Maintain the accuracy of the measuring and test equipment by checking and calibrating it according to the check and calibration procedures.

Service Manual BSM-2300

1.3

1. GENERAL

Service Policy, Service Parts and Patient Safety Checks Service Policy

Our technical service policy for this instrument is to replace the faulty unit, board or part or damaged mechanical part with a new one. Do not perform electrical device or component level repair of the multilayer board or unit. We do not support component level repair outside the factory for the following reasons: • Most of the boards are multilayer boards with surface mounted electrical devices, so the mounting density of the board is too high. • A special tool or high degree of repair skill is required to repair the multilayer boards with surface mounted electrical devices.

Disassemble the instrument or replace a board or unit in an environment where the instrument is protected against static electricity. As background knowledge for repair, pay special attention to the following: • You can reduce the repair time by considering the problem before starting repair. • You can clarify the source of most of the troubles using the information from the diagnostic check function of the instrument. Refer to “Diagnostic Check “ of this manual.

Service Parts

Refer to “Replaceable Parts List” of this manual for the service parts for technical service that we provide.

NOTE When ordering parts or accessories from your Nihon Kohden representative, 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 BSM-2300