Nihon Kohden BSM-4100 User manual

BSM4101A BSM4101J BSM4101K BSM4102A BSM4102J BSM4102K BSM4103A BSM4103J BSM4103K BSM4104A BSM4104J BSM4104K

BSM4111A BSM4111J BSM4111K BSM4112A BSM4112J BSM4112K BSM4113A BSM4113J BSM4113K BSM4114A BSM4114J BSM4114K

SERVICE MANUAL

Life Scope P

BEDSIDE MONITOR

BSM-4100

0634-001539D

line cutting

Model: BSM-4100A/J/K

Manual code no.: 0634-001539D

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		CONTENTS
	Contents
	GENERAL HANDLING PRECAUTIONS .........................................................................	i
	WARRANTY POLICY ....................................................................................................	ii
	Conventions Used in this Manual and Instrument ........................................................	iv
	Warnings, Cautions and Notes ...........................................................................	iv
	Explanations of the Symbols in this Manual and Instrument...............................	v
	On panels .................................................................................................	v
	On screen ...............................................................................................	vi
	Others .....................................................................................................	vi
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
	Composition .........................................................................................................................	1.6
	BSM-4101/4103/4111/4113 ........................................................................................	1.6
	BSM-4102/4104/4112/4114 ........................................................................................	1.8
	Specifications ....................................................................................................................	1.10
	Display ...........................................................................................................	1.10
	Sound.............................................................................................................	1.10
	Alarm .............................................................................................................	1.10
	ECG ...............................................................................................................	1.10
	Respiration (Transthoracic impedance pneumography) ...................................	1.11
	SpO2 on BSM-4101/4103/4111/4113 Monitors ...............................................	1.11
	SpO2 on BSM-4102/4104/4112/4114 Monitors ...............................................	1.12
	Non Invasive Blood pressure, NIBP ...............................................................	1.12
	Invasive Blood Pressure, IBP ........................................................................	1.13
	Temperature ...................................................................................................	1.13
	Cardiac Output, CO ........................................................................................	1.13
	Respiration (Thermistor method) ....................................................................	1.14
	Inspired Oxygen Fractional Concentration, FiO2 .............................................	1.14
	Expired Carbon Dioxide Tension, CO2 .............................................................	1.14
	Trendgraph .....................................................................................................	1.15
	Vital Signs List ...............................................................................................	1.15
	Hemodynamics List (BSM-4103/4104/4113/4114 monitors only) ...................	1.15
	Full Disclosure (QM-421P flash memory card required) .................................	1.15
	ECG/BP Output .............................................................................................	1.15
	Recorder (BSM-4101/4102/4103/4104 monitors only) ....................................	1.15
	External Output ..............................................................................................	1.16
	Power Requirement ........................................................................................	1.16
	Environment ...................................................................................................	1.16
	Dimensions and Weight (approximate) ...........................................................	1.16

Service Manual BSM-4100

C.1

CONTENTS
Electromagnetic Compatibility ........................................................................	1.16
Safety Standard .............................................................................................	1.16
Names and Function of Parts .............................................................................................	1.18
Front Panel ...............................................................................................................	1.18
Socket Panel ............................................................................................................	1.20
On the BSM-4101/4103/4111/4113 Monitors ..................................................	1.20
On the BSM-4102/4104/4112/4114 Monitors ..................................................	1.20
Using the Output Signal from the ECG/BP OUT Socket ................................	1.21
Using Multi-parameter Sockets for CO and CO2 Monitoring ............................	1.21
Left Side Panel .........................................................................................................	1.22
Right Side Panel .......................................................................................................	1.22
Storage and Transport ........................................................................................................	1.23
Storage .....................................................................................................................	1.23
Transport ..................................................................................................................	1.23
Hard Keys and Soft Keys ...................................................................................................	1.24
Hard Keys ................................................................................................................	1.24
Soft Keys .................................................................................................................	1.24
Upgrading the System Software and Changing Language on the Screen ...........................	1.25
Procedure ......................................................................................................	1.25
Board/Unit Connection Diagram .........................................................................................	1.26
Block Diagram ....................................................................................................................	1.27

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
	Recording Problems .............................................................................................................	2.5
	ECG and Respiration by Impedance Method Problems ........................................................	2.6
	SpO2 Problems .....................................................................................................................	2.7
	Non-invasive Blood Pressure Problems ...............................................................................	2.8
	Other Vital Sign Input Problems ...........................................................................................	2.9
	ECG/BP Output Problems ..................................................................................................	2.12
	Option 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

C.2	Service Manual BSM-4100

	CONTENTS
ROM Check ...................................................................................................	3.10
RAM Check ...................................................................................................	3.11
Hard Key Check .............................................................................................	3.12
Touch Key Check ...........................................................................................	3.13
Sound Check .................................................................................................	3.14
COM RAM Check ..........................................................................................	3.15
ALARM INDICATOR Check ............................................................................	3.16
OTHER Check ...............................................................................................	3.17
MEMORY CARD Check .................................................................................	3.18
ATA CARD Check ...........................................................................................	3.19
Backlight Check .............................................................................................	3.20
CRTC Check Menu Items ........................................................................................	3.21
GRAPHIC MEMORY Check and CHARACTER MEMORY Check .................	3.21
GRAPHIC DRAW Check ................................................................................	3.22
CHARACTER DRAW Check ...........................................................................	3.24
IMAGE DRAW Check ....................................................................................	3.26
DPU Check Menu Items ...........................................................................................	3.27
D/A ADJUST ..................................................................................................	3.27
AD TEST ........................................................................................................	3.28
AUX I/F Check ...............................................................................................	3.29
NIBP Check ...................................................................................................	3.30
DPU ROM Check ...........................................................................................	3.40
DPU RAM Check ...........................................................................................	3.41
DPU COM 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
MULTI PARAMETER UNIT Check .................................................................	3.48
ECG 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
Block Diagram ......................................................................................................................	4.1
MAIN Board .........................................................................................................................	4.2
DPU Board ...........................................................................................................................	4.6
Motherboard .........................................................................................................................	4.8
ECG RESP1, ECG RESP2 and ECG RESP3 Boards ..........................................................	4.9
NK SpO2 Board and Nellcor SpO2 Module ..........................................................................	4.12
NK SpO2 Board ........................................................................................................	4.12
Nellcor SpO2 Module ................................................................................................	4.12
NIBP Measure Board and NIBP Safety Board ...................................................................	4.13
MP1, MP2 and MP3 Boards ...............................................................................................	4.14
Recorder Unit (for BSM-4101/4102/4103/4104 only) ...........................................................	4.16

Service Manual BSM-4100

C.3

CONTENTS
Power Supply Block ...........................................................................................................	4.17
LCD Unit .............................................................................................................................	4.17

Section 5	Disassembly and Assembly ...............................................	5C.1
	Before You Begin ..................................................................................................................	5.1
	Warnings and Caution .................................................................................................	5.1
	Required Tools ............................................................................................................	5.1
	Opening the Instrument ........................................................................................................	5.2
	Removing the Nellcor SpO2 Module (MP304*) ......................................................................	5.6
	Removing the Nellcor SpO2 Module (MP506*) ......................................................................	5.7
	Removing the NIBP Safety Board ........................................................................................	5.8
	Removing the Motherboard, NIBP Measure Board .............................................................	5.10
	Removing the DPU Board ...................................................................................................	5.12
	Removing the MAIN Board .................................................................................................	5.13
	Removing the Analog Boards .............................................................................................	5.14
	Removing the Recorder Unit ...............................................................................................	5.15
	Replacing the Touch Screen ...............................................................................................	5.16
	Replacing the Backlight Lamps ..........................................................................................	5.19
	Installing the Options .........................................................................................................	5.22
	Installing QM-421P Flash Disk Card into the Slot on the MAIN Board .....................	5.22
	Replacing the Lithium Battery ............................................................................................	5.25

Section 6	Maintenance .........................................................................	6C.1
	To Be Replaced Periodically .................................................................................................	6.1
	Required Tools ......................................................................................................................	6.1
	Measuring and Test Equipment ............................................................................................	6.2
	YS-073P8 Board/Unit Maintenance Kit .................................................................................	6.3
	Composition ...............................................................................................................	6.3
	Connection .................................................................................................................	6.3
	Connection Diagram ...................................................................................................	6.5
	Maintenance Check Items and Schedule .............................................................................	6.6
	External ......................................................................................................................	6.6
	Input Conditions .........................................................................................................	6.6
	Operation ...................................................................................................................	6.7
	Display .......................................................................................................................	6.7
	Recorder .....................................................................................................................	6.7
	Vital Sign Parameters .................................................................................................	6.8
	Power .........................................................................................................................	6.8
	Data Backup ..............................................................................................................	6.9
	Safety ........................................................................................................................	6.9
	Others ......................................................................................................................	6.10

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

C.4	Service Manual BSM-4100

	CONTENTS
	Adjusting the Output Voltages with the YS-073P8 Board/Unit Maintenance Kit and
	Digital or Analog Multimeter ..................................................................................	7.2
	Adjusting the Output Voltages with the YS-073P8 Board/Unit Maintenance Kit and
	Oscilloscope .........................................................................................................	7.2
Section 8	Replaceable Parts List.........................................................	8C.1
	Bedside Monitor BSM-4101/4103/4111/4113 ........................................................................	8.2
	Bedside Monitor BSM-4102/4104/4112/4114 (MP304* included) ........................................	8.10
	Bedside Monitor BSM-4102/4104/4112/4114 (MP506* included) ........................................	8.18
	RG-921P Recorder Unit ......................................................................................................	8.26
Section 9	Connector Pin Assignment ................................................	9C.1
	MAIN Board .........................................................................................................................	9.1
	CN006 (for Speaker) .........................................................................................	9.1
	CN101 (for DPU board) .....................................................................................	9.2
	CN102 (for Connection board) ..........................................................................	9.3
	CN103 (for Power SW board, Operation board and Alarm Indicator board) .......	9.4
	CN105 (for power supply unit) ..........................................................................	9.4
	CN106 (AUX socket) ........................................................................................	9.5
	CN107 (for program or network card) ................................................................	9.6
	CN108 (for Inverter board) ...............................................................................	9.7
	CN109 (for QM-421P flash memory) ................................................................	9.8
	CN114 (REMOTE socket) ................................................................................	9.9
	CN121 (for RG-921P recorder unit) ...................................................................	9.9
	CN122 (for RG-921P recorder unit) .................................................................	9.10
	CN123 (for RG-921P recorder unit) .................................................................	9.10
	DPU Board .........................................................................................................................	9.11
	CN701 (for MAIN board) .................................................................................	9.11
	CNJ022 (for Motherboard) ..............................................................................	9.11
	CNJ013 (for ECG RESP2 board) ....................................................................	9.11
	CNJ031 (for power supply unit) ......................................................................	9.12
	CNJ041 (for NIBP Measure board) .................................................................	9.12
	CNJ042 (for NIBP Safety board) ....................................................................	9.13
	CN705 (for ZB-800P transmitter) ....................................................................	9.13
	Motherboard .......................................................................................................................	9.14
	CNJ701 (for DPU board) .................................................................................	9.14
	CNJ305 (for ECG RESP1 board) ....................................................................	9.14
	CNJ303 (for ECG RESP2 board) ....................................................................	9.14
	CNJ304 (for ECG RESP2 board) ....................................................................	9.15
	CNJ301 (for ECG RESP3 board) ....................................................................	9.15
	CNJ302 (for ECG RESP3 board) ....................................................................	9.16
	CNJ401 (for NK SpO2 board) .........................................................................	9.16
	CNJ601 (for MP2 board) .................................................................................	9.17
	CNJ602 (for MP3 board) .................................................................................	9.17
	CNJ501 (for Nellcor SpO2 board) BSM-4102/4104/4112/4114 only ................	9.18
	Operation Board .................................................................................................................	9.19
	CN101 (for Function Dial board) .....................................................................	9.19

Service Manual BSM-4100

C.5

CONTENTS
CN102 (for MAIN board) .................................................................................	9.19
Alarm Indicator Board .........................................................................................................	9.20
CN1 (for MAIN board) .....................................................................................	9.20
Power SW Board ................................................................................................................	9.20
CN101 (for MAIN board) .................................................................................	9.20
Connection Board ...............................................................................................................	9.21
CN101 (for LCD unit) ......................................................................................	9.21
CN102 (for touch screen) ...............................................................................	9.22
CN103 (for MAIN board) .................................................................................	9.22
Inverter Board ....................................................................................................................	9.23
CN1 (for MAIN board) .....................................................................................	9.23
CN2 (for backlight) .........................................................................................	9.23
Function Dial Board ............................................................................................................	9.23
CN101 (for Operation board)...........................................................................	9.23

Section 10 Internal Switch Setting and Board Compatibility ...........	10C.1
Internal Switch Setting .......................................................................................................	10.1
MAIN Board ...................................................................................................	10.1
DPU Board .....................................................................................................	10.1
Board Compatibility ............................................................................................................	10.2
MAIN Board ...................................................................................................	10.2
SpO2 Board ...................................................................................................	10.2

ECG RESP1 Board, ECG RESP2 Board, ECG RESP3 Board and Motherboard

...................................................................................................................... 10.2

C.6	Service Manual BSM-4100

GENERAL HANDLING PRECAUTIONS

This device is intended for use only by qualified medical personnel.

Use only Nihon Kohden approved products with this device. Use of non-approved products or in a non-approved manner may affect the performance specifications of the device. This includes, but is not limited to, batteries, recording paper, pens, extension cables, electrode leads, input boxes and AC power.

Please read these precautions thoroughly before attempting to operate the instrument.

1.To safely and effectively use the instrument, its operation must be fully understood.

2.When installing or storing the instrument, take the following precautions:

(1)Avoid moisture or contact with water, dust, extreme atmospheric pressure, excessive humidity and temperatures, poorly ventilated areas, and saline or sulphuric air.

(2)Place the instrument on an even, level floor. Avoid vibration and mechanical shock, even during transport.

(3)Avoid placing in an area where chemicals are stored or where there is danger of gas leakage.

(4)The power line source to be applied to the instrument must correspond in frequency and voltage to product specifications, and have sufficient current capacity.

(5)Choose a room where a proper grounding facility is available.

3.Before Operation

(1)Check that the instrument is in perfect operating order.

(2)Check that the instrument is grounded properly.

(3)Check that all cords are connected properly.

(4)Pay extra attention when the instrument is in combination with other instruments to avoid misdiagnosis or other problems.

(5)All circuitry used for direct patient connection must be doubly checked.

(6)Check that battery level is acceptable and battery condition is good when using battery-operated models.

4.During Operation

(1)Both the instrument and the patient must receive continual, careful attention.

(2)Turn power off or remove electrodes and/or transducers when necessary to assure the patient’s safety.

(3)Avoid direct contact between the instrument housing and the patient.

5.To Shutdown After Use

(1)Turn power off with all controls returned to their original positions.

(2)Remove the cords gently; do not use force to remove them.

(3)Clean the instrument together with all accessories for their next use.

6.The instrument must receive expert, professional attention for maintenance and repairs. When the instrument is not functioning properly, it should be clearly marked to avoid operation while it is out of order.

7.The instrument must not be altered or modified in any way.

8.Maintenance and Inspection:

(1)The instrument and parts must undergo regular maintenance inspection at least every 6 months.

(2)If stored for extended periods without being used, make sure prior to operation that the instrument is in perfect operating condition.

Service Manual BSM-4100

i

(3)Technical information such as parts list, descriptions, calibration instructions or other information is available for qualified user technical personnel upon request from your Nihon Kohden distributor.

9.When the instrument is used with an electrosurgical instrument, pay careful attention to the application and/or location of electrodes and/or transducers to avoid possible burn to the patient.

10.When the instrument is used with a defibrillator, make sure that the instrument is protected against defibrillator discharge. If not, remove patient cables and/or transducers from the instrument to avoid possible damage.

WARRANTY POLICY

Nihon Kohden Corporation (NKC) shall warrant its products against all defects in materials and workmanship for one year from the date of delivery. However, consumable materials such as recording paper, ink, stylus and battery are excluded from the warranty.

NKC or its authorized agents will repair or replace any products which prove to be defective during the warranty period, provided these products are used as prescribed by the operating instructions given in the operator’s and service manuals.

No other party is authorized to make any warranty or assume liability for NKC’s products. NKC will not recognize any other warranty, either implied or in writing. In addition, service, technical modification or any other product change performed by someone other than NKC or its authorized agents without prior consent of NKC may be cause for voiding this warranty.

Defective products or parts must be returned to NKC or its authorized agents, along with an explanation of the failure. Shipping costs must be pre-paid.

This warranty does not apply to products that have been modified, disassembled, reinstalled or repaired without Nihon Kohden approval or which have been subjected to neglect or accident, damage due to accident, fire, lightning, vandalism, water or other casualty, improper installation or application, or on which the original identification marks have been removed.

In the USA and Canada other warranty policies may apply.

CAUTION

United States law restricts this device to sale by or on the order of a physician.

ii	Service Manual BSM-4100

EMC RELATED CAUTION

This equipment and/or system complies with the International Standard IEC 60601-1-2 for electromagnetic compatibility for medical electrical equipment and/or system. However, an electromagnetic environment that exceeds the limits or levels stipulated in the IEC 60601-1-2, 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-4100K Bedside Monitors.

This equipment complies with International Standard IEC 60601-1-2 (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.

Service Manual BSM-4100

iii

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 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.

iv	Service Manual BSM-4100

Explanations of the Symbols in this Manual and Instrument

The following symbols found in this manual/instrument bear the respective descriptions as given.

On panels

Symbol	Description	Symbol	Description
	Standby		Defibrillation-proof type CF applied
			part
	“On” only for a part of instrument		Defibrillation-proof type BF applied
			part
	“Off” only for a part of instrument		Type CF applied part
	Battery		Type BF applied part
	Battery charging		Data input/output
	Record start/stop		Input/output terminal
	Out of paper		Alternating current
	Alarm suspend		Equipotential terminal
	NIBP		Remote terminal
	NIBP interval		Year of manufacture
	NIBP start		Serial number
	NIBP stop		Protective earth
	Menu		High voltage
	Home (monitoring screen)		The CE mark is a protected
			conformity mark of the European
	Attention, consult operator’s		Community. The products herewith
	manual		comply with the requirements of the
			Medical Device Directive
	Output		93/42/EEC.

Service Manual BSM-4100

v

On screen

Symbol	Description	Symbol			Description
	Alarm suspend with remaining				QRS/pulse sync mark
	minutes
	Alarm off				Respiration sync mark
	Alarm recording off				Value out of range
	Recording				Current setting
	Paper magazine open				Adjust setting
	Out of paper				Touch screen calibration mark
	Function key				Change scale
					Network communicating

Others

Symbol

Description

Recycle (On battery pack)

vi	Service Manual BSM-4100

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
Composition ........................................................................................................................	1.6
BSM-4101/4103/4111/4113 .......................................................................................	1.6
BSM-4102/4104/4112/4114 .......................................................................................	1.8
Specifications ...................................................................................................................	1.10
Display ..........................................................................................................	1.10
Sound............................................................................................................	1.10
Alarm ............................................................................................................	1.10
ECG ..............................................................................................................	1.10
Respiration (Transthoracic impedance pneumography) ..................................	1.11
SpO2 on BSM-4101/4103/4111/4113 Monitors ..............................................	1.11
SpO2 on BSM-4102/4104/4112/4114 Monitors ..............................................	1.12
Non Invasive Blood pressure, NIBP ..............................................................	1.12
Invasive Blood Pressure, IBP .......................................................................	1.13
Temperature ..................................................................................................	1.13
Cardiac Output, CO .......................................................................................	1.13
Respiration (Thermistor method) ...................................................................	1.14
Inspired Oxygen Fractional Concentration, FiO2 ............................................	1.14
Expired Carbon Dioxide Tension, CO2 ............................................................	1.14
Trendgraph ....................................................................................................	1.15
Vital Signs List ..............................................................................................	1.15
Hemodynamics List (BSM-4103/4104/4113/4114 monitors only) ..................	1.15
Full Disclosure (QM-421P flash memory card required) ................................	1.15
ECG/BP Output ............................................................................................	1.15
Recorder (BSM-4101/4102/4103/4104 monitors only) ...................................	1.15
External Output .............................................................................................	1.16
Power Requirement .......................................................................................	1.16
Environment ..................................................................................................	1.16
Dimensions and Weight (approximate) ..........................................................	1.16

Service Manual BSM-4100

1C.1

Electromagnetic Compatibility .......................................................................	1.16
Safety Standard ............................................................................................	1.16
Names and Function of Parts ............................................................................................	1.18
Front Panel ..............................................................................................................	1.18
Socket Panel ...........................................................................................................	1.20
On the BSM-4101/4103/4111/4113 Monitors .................................................	1.20
On the BSM-4102/4104/4112/4114 Monitors .................................................	1.20
Using the Output Signal from the ECG/BP OUT Socket ...............................	1.21
Using Multi-parameter Sockets for CO and CO2 Monitoring ...........................	1.21
Left Side Panel ........................................................................................................	1.22
Right Side Panel ......................................................................................................	1.22
Storage and Transport .......................................................................................................	1.23
Storage ....................................................................................................................	1.23
Transport .................................................................................................................	1.23
Hard Keys and Soft Keys ..................................................................................................	1.24
Hard Keys ...............................................................................................................	1.24
Soft Keys ................................................................................................................	1.24
Upgrading the System Software and Changing Language on the Screen ..........................	1.25
Procedure .....................................................................................................	1.25
Board/Unit Connection Diagram ........................................................................................	1.26
Block Diagram ...................................................................................................................	1.27

1C.2	Service Manual BSM-4100

1. GENERAL

Introduction

This service manual provides useful information to qualified personnel to understand, troubleshoot, service, maintain and repair the BSM-4100A/J/K Bedside Monitor (referred to as “the instrument” in this service manual).

All replaceable parts or units of this instrument are clearly listed with exploded illustrations 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-4100

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 or toxic substance inside the lithium battery could leak 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, use the patient safety checks and function/performance checks to verify that there is nothing wrong. If there is something wrong with the instrument, contact your Nihon Kohden representative for 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 alkyl diaminoethylglycine:	0.5%

1.2	Service Manual BSM-4100

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 inside the instrument.

•When transporting a 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 wrap the board or unit of the instrument with styrene foam or a plastic bag which generates static electricity.

Handling the instrument

•Because the outside surface of the instrument is made of resin, it is easily damaged. When handling the instrument, remove clutter from around the instrument and be careful not to damage the instrument or get it dirty.

•Because most of the boards in the instrument are multilayer boards with surface mounted electrical devices (SMD), a special tool is required when removing and soldering the electrical devices. 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-4100

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 and special 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.

1.4	Service Manual BSM-4100

Patient Safety Checks

1. GENERAL

Periodic maintenance procedures and diagnostic check procedures are provided in this manual to ensure that the instrument is operating in accordance with its design and production specifications. To verify that the instrument is working in a safe manner with regard to patient safety, patient safety checks should be performed on the instrument before it is first installed, periodically after installation, and after any repair is made on the instrument.

For patient safety checks, perform the following checks as described in the International Electrotechnical Commission’s standard, IEC60601-1 (1988):

•Protective earth resistance check

•Earth leakage current check

•Enclosure leakage current check

•Patient leakage current check

•Withstanding voltage check

Service Manual BSM-4100

1.5

1. GENERAL

Composition

BSM-4101/4103/4111/4113

BSM-4101A

BSM-4101J

BSM-4101K

BSM-4111A

BSM-4111J

BSM-4111K

BSM-4103A

BSM-4103J

BSM-4103K

BSM-4113A

BSM-4113J

BSM-4113K

CD-225P

RG-921P

UR-3586

UR-3563

UR-3566

UR-3541

UR-35421

UR-35431

UR-3544

UR-3546

UR-3547

UR-3548

UR-3561

UR-3564

UR-3567

UR-3557

UR-3558

UR-3559

UR-35591

SC-039R

Chassis

Recorder Unit (BSM-4101/4103)

MAIN Board

DPU Board

Motherboard

Connection Board

Power SW Board

Operation Board

Function Dial Board

ECG RESP1 Board

ECG RESP2 Board

ECG RESP3 Board

NK SPO2 Board

NIBP Measure Board

NIBP Safety Board

MP1 Board

MP2 Board

MP3 Board (BSM-4103/4113)

MP3 Dummy Board (BSM-4101/4111)

Power Supply Block

1.6	Service Manual BSM-4100

1. GENERAL

				Operation Panel
			YS-024R0
				Input Panel (BSM-4101/4111)
			YS-024R1
				Input Panel (BSM-4103/4113)
			YS-024R3
				Flash Disk Card (Option)
			QM-421P
				Transmitter (Option)
			ZB-800PA
				Transmitter (Option)
			ZB-800PG
				Transmitter (Option)
			ZB-800PK
				Network Card (Option)
			QI-101P
				Network Printer Card (Option)
			QI-111P

Service Manual BSM-4100

1.7

1. GENERAL

BSM-4102/4104/4112/4114

BSM-4102A

BSM-4102J

BSM-4102K

BSM-4112A

BSM-4112J

BSM-4112K

BSM-4104A

BSM-4104J

BSM-4104K

BSM-4114A

BSM-4114J

BSM-4114K

CD-226P

RG-921P

UR-3586

UR-35631

UR-35661

UR-3541

UR-35421

UR-35431

UR-3544

UR-3546

UR-3547

UR-3548

UR-35611

UR-3564

UR-3567

UR-3557

UR-3558

UR-35592

UR-35593

SC-039R

Chassis

Recorder Unit (BSM-4102/4104)

MAIN Board

DPU Board

Motherboard

Connection Board

Power SW Board

Operation Board

Function Dial Board

ECG RESP1 Board

ECG RESP2 Board

ECG RESP3 Board

NL SPO2 Dummy Board

NIBP Measure Board

NIBP Safety Board

MP1 Board

MP2 Board

MP3 Board (BSM-4104/4114)

MP3 Dummy Board (BSM-4102/4112)

Power Supply Block

1.8	Service Manual BSM-4100

1. GENERAL

						Operation Panel
					YS-024R0
						Input Panel (BSM-4102/4112)
					YS-024R2
						Input Panel (BSM-4104/4114)
					YZ-024R4
						Flash Disk Card (Option)
					QM-421P
						Transmitter (Option)
					ZB-800PA
						Transmitter (Option)
					ZB-800PG
						Transmitter (Option)
					ZB-800PK
						Network Card (Option)
					QI-101P
						Network Printer Card (Option)
					QI-111P

Service Manual BSM-4100

1.9

1. GENERAL

Specifications

Display
Display size:	12.1 inch, TFT type LCD
Waveform display mode:	Non-fade moving or non-fade fixed
Viewing area:	246 mm × 184.5 mm
Resolution:	800 × 600 dots
Maximum number of waveform trace:	13 traces (12 lead display)
Sweep speed:	25 mm/s, 50 mm/s (At compressed: 6.25 mm/s, Respiration low speed: 1.56 mm/s)
Sweep time:	7.4 s (at 25 mm/s sweep speed)
Waveform display color:	12
Numeric display color:	12
Waveform freeze:	Provided
Display waveforms:	ECG, respiration, IBP, SpO2 pulse wave, CO2 and CO thermodilution curve
Numerical data display:	Heart rate, VPC rate, ST level, respiration rate, IBP (systolic, diastolic, mean),
	NIBP (systolic, diastolic, mean), SpO2, pulse rate, temperature, CO, FiO2, ETCO2
Synchronization mark:	Heart rate sync mark, pulse rate sync mark, respiratory sync mark
Sound
Sound type:	Alarm, synchronization, click
Alarm sound:	3 types
Synchronization sound:	Pitch variable for IBP and SpO2
Alarm
Alarm items:	Upper/lower limits alarm, apnea alarm, arrhythmia alarm, connector disconnection
	alarm, NOISE alarm, electrode off alarm, waveform detecting alarm, probe off
	alarm, cuff/hose check alarm, sensor check alarm, low battery alarm, operating
	environment alarm
Alarm types:	Crisis (red blinking), Warning (yellow blinking), Advisory (yellow lighting),
	Message
Alarm indication:	Alarm indicator, highlighted message, alarm sound
Alarm suspend:	Provided (for 1 or 2 min)
ECG
Electrode offset potential tolerance:	±500 mV
Input dynamic range:	± 5 mV
Internal noise:	≤20 µVp-p (Refer to input)
Common mode rejection ration:	≥90 dB
Input impedance	≥5 MΩ (at 10 Hz)
Input bias current:	≤100 nA
Heart rate count
Calculation method:	Moving average/Instantaneous beat to beat (selectable)
Counting range:	0, 12 to 300 beats/min (±2 beats/min)
Arrhythmia analysis
Analysis method:	Template matching method
Number of channels:	1 channel
VPC counting rate:	0 to 99 VPCs/min

1.10	Service Manual BSM-4100

	1. GENERAL
Arrhythmia message:	ASYSTOLE, VT, VF, VPC RUN, COUPLET, EARLY VPC, BIGEMINY, FREQ
	VPC, TACHYCARDIA, BRADYCARDIA, NOISE, Electrode OFF, LEARNING
Arrhythmia recall:
Number of recall files:	16
Storage time per file:	8 s
ST level measurement:
Number of measurement channels:3-electrodes: 1 ch
	6-electrodes: 8 ch
	10-electrodes: 12 ch
Measuring range:	±2.5 mV
Pacemaker pulse rejection capability:	0.1 to 2 ms, ±2 to 700 mV
	ANSI/AAMI EC 13-1992 compatible
	Pacing pulse detection ON/OFF
Defibrillation-proof:	ECG input protected against 400 J
	IEC 60601-2-27 17.101 compatible
ESU interference filter:	Provided
AC hum filter:	OFF: 150 ±10 Hz (> −3 dB)
	ON: 23 ±3 Hz (> −3 dB)
	≤ −16 dB (50 Hz or 60 Hz)
Lead:
3-electrode cable:	I, II, III
6-electrode cable:	I, II, III, aVR, aVL, aVF, 2 from V1 to V6
10-electrode cable:	I, II, III, aVR, aVL, aVF, V1 to V6
Waveform display:
Display sensitivity:	10 mm/mV ±5% (at ×1 sensitivity)
Sensitivity control:	×1/4, ×1/2, ×1, ×2, ×4, or AUTO
Auto positioning:	Available
Pacing spike display:	Available
Heart rate display update cycle:	Every 3 s or when alarm is generated
Alarm items:
Upper limit range:	20 to 300 beats/min in 5 beats/min steps, OFF
Lower limit range:	OFF, 15 to 295 beats/min in 5 beats/min steps
Alarm items:	TACHYCARDIA, BRADYCARDIA, ASYSTOLE
Respiration (Transthoracic impedance pneumography)
Measuring impedance available range:	0 to 2 kΩ
Internal noise:	≤0.2 Ω (Refer to input)
Excitor current:	30 ±10 µArms at 31.25 kHz
Frequency response:	0.1 to 3.2 Hz ±1 Hz (−3 dB)
Respiration counter counting range:	0 to 150 breaths/min
Defibrillation proof:	Respiration input protected against 400 J discharge
Waveform display:
Display sensitivity:	10 mm/Ω ±25% (at ×1 sensitivity)
Sensitivity control:	×1/4, ×1/2, ×1, ×2, ×4
Respiration rate display update cycle:	Every 3 s or when alarm is generated
Alarm:
Upper limit range:	2 to 150 breaths/min in 2 breaths/min steps, OFF
Lower limit range:	OFF, 0 to 148 breaths/min in 2 steps
Apnea time:	OFF, 5 to 40 s in 5 s steps

Service Manual BSM-4100

1.11

1. GENERAL

SpO2 on BSM-4101/4103/4111/4113 Monitors

Measuring range:	50 to 100%
SpO2 accuracy:	±2 digits (80% ≤ SpO2 ≤ 100%)
	±3 digits (50% ≤ SpO2 < 80%)
SpO2 display:
Pulse rate display update cycle:	Every 3 s or when alarm is generated
Sync tone modulation:	Change in 20 steps at 81 to 100% SpO2
Waveform sensitivity:	×1/8, ×1/4, ×1/2, ×1, ×2, ×4, ×8
Alarm:
Upper limit range:	51 to 100% SpO2 in 1% SpO2 steps, OFF
Lower limit range:	OFF, 50 to 99% SpO2 in 1% SpO2 steps

SpO2 on BSM-4102/4104/4112/4114 Monitors

Measuring range:

SpO2 accuracy:

SpO2 display:

Pulse rate display update cycle: Sync tone modulation:

Waveform sensitivity:

Alarm:

Upper limit range:

Lower limit range:

Non Invasive Blood pressure, NIBP

Measuring method:

Cuff pressure display range:

Accuracy:

1 to 100%
DS-100A:	±3% SpO2
OXIBAND A/N: ±3% SpO2
OXIBAND P/I: ±3% SpO2
RS-10:	±3.5% SpO2
D-YS:	±3% SpO2
D-YSE:	±3.5% SpO2
D-YSPD:	±3.5% SpO2
D-25/D-25L:	±2% SpO2
N-25:	±2% SpO2
I-20:	±2% SpO2
D-20:	±2% SpO2
R-15:	±3.5% SpO2
OXICLIQ I:	±2.5% SpO2
OXICLIQ P:	±2.5% SpO2
OXICLIQ A:	±2.5% SpO2
OXICLIQ N:	±2.5% SpO2
OXI1-2-3 A/N:	±2.5% SpO2
OXI1-2-3 P/I:	±2.5% SpO2

Every 3 s or when alarm is generated Change in 20 steps at 81 to 100% SpO2

×1/8, ×1/4, ×1/2, ×1, ×2, ×4, ×8

51 to 100% SpO2 in 1% SpO2 steps, OFF OFF, 50 to 99% SpO2 in 1% SpO2 steps

Oscillometric 0 to 300 mmHg

±3 mmHg (0 mmHg ≤ NIBP ≤ 200 mmHg) ±4 mmHg (200 mmHg ≤ NIBP ≤ 300 mmHg)

Safety:

Maximum pressurization value cuff inflation limiter: Adult 300 to 330 mmHg

Neonates 150 to 165 mmHg

Cull inflation time limiter: Adult 161 to 165 s

Neonates 81 to 84 s

1.12	Service Manual BSM-4100

	1. GENERAL
Measurement mode:	Manual
	Continuous
	Periodic: 2, 2.5, 5, 10, 15, 30 min, 1, 2, 4, 8 hr interval
NIBP data display update cycle:	Updated every measurement
Measurement end sound:	Generated when measurement ends
Alarm:
Upper limit range:	15 to 260 mmHg in 5 mmHg steps, OFF
Lower limit range:	OFF, 10 to 255 mmHg in 5 mmHg steps
Invasive Blood Pressure, IBP
Measuring range:	−50 to 300 mmHg
Measuring accuracy:	±1 mmHg ±1 digit (−50 mmHg ≤ IBP < 100 mmHg)
	±1% ±1 digit (100 mmHg ≤ IBP ≤ 300 mmHg)
Auto zero balancing range:	±200 mmHg
Auto zero balancing accuracy:	±1 mmHg
Transducer sensitivity:	50 µV/V/10 mmHg
Pulse rate counting range:	0, 12 to 300 beats/min
Pulse rate counting accuracy:	±2 beats/min
Noise:	Within ±1 mmHg
Temperature zero drift:	±0.1 mmHg/1°C
Frequency response:	DC to 20 Hz ±3Hz
Display update cycle:	Every 3 or when alarm is generated
BP sync sound:	Provided, systolic value 20 to 120 mmHg, changes in 20 steps every 5 mmHg
Alarm:
Upper limit range:	2 to 300 mmHg in 2 mmHg steps, OFF
Lower limit range:	OFF, 0 to 298 mmHg steps in 2 mmHg steps
Temperature
Measuring range:	0 to 45°C
Measuring accuracy:	±0.1°C (25°C ≤ Temp ≤ 45°C)
	±0.2°C ( 0°C ≤ Temp < 25°C)
Temperature drift:	within ±0.005°C /°C
Temperature range:
Display range:	0°C to 45°C (32 to 115°F)
Display update cycle:	Every 3 s
Alarm:
Upper limit range:	0.1 to 45°C (32 to 113°F) in 0.1°C (1°F) steps, OFF
Lower limit range:	OFF, 0 to 44.9°C (31 to 112°F) in 0.1°C (1°F) steps
Cardiac Output, CO
Measuring method:	Thermodilution method
Measuring range:
Injectate temperature (Ti):	0°C to 27°C
Blood temperature (Tb):	15°C to 45°C
Thermodilution curve (delta Tb): 0°C to 2.5°C
Cardiac output (CO):	0.1 to 20 L/min
Measuring accuracy:
Ti:	±0.2°C
Tb 25 to 45°C:	±0.1°C

Service Manual BSM-4100

1.13

1. GENERAL

Tb 15 to 25°C:

CO:

Temperature drift:

Ti:

Tb:

Frequency response (delta Tb): Injectate volume range:

Respiration (Thermistor method)

Respiration rate counting range:

Accuracy:

Noise:

Frequency response:

Waveform display

Display sensitivity:

Sensitivity control:

Respiration rate display update cycle: Alarm:

Upper limit range:

Lower limit range:

Apnea time:

±0.2°C

±5%

±0.005°C /°C ±0.005°C /°C

DC to 3 Hz (−3 dB) 3, 5, 10 mL (7F)

1, 2, 3, 4, 5 mL (5F)

0 to 150 breaths/min Apnea, 5 to 40 s

±1 breath/min

Within 2.5 Ω (Refer to input) 0.1 to 3 Hz (−3 dB)

10 mm/100 Ω ±10% (at ×1 sensitivity)

×1/4, ×1/2, ×1, ×2, ×4

Every 3 or when alarm is generated

2 to 150 breaths/min in 2 breaths/min steps, OFF OFF, 0 to 148 breaths/min in 2 breaths/min OFF, 5 to 40 s in 5 s steps

Inspired Oxygen Fractional Concentration, FiO2

Measuring range:	10 to 100% O2
Accuracy:	±3% full scale (When calibrated at 21% O2)
	±2% full scale (When calibrated at 100% O2)
Temperature drift:	±0.12% O2/°C
FiO2 display update cycle:	Every 3 s or when alarm is generated
Alarm:
Upper limit range:	19 to 100% in 1% steps, OFF
Upper limit range:	OFF, 18 to 99% in 1% steps
Expired Carbon Dioxide Tension, CO2
Measuring method:	Mainstream (TG-900P)
Measuring range:
TG-900P:	0 to 99 mmHg
Warm-up time:	5 s (min)
Response time
TG-900P:	200 ms (typical) for steps from 10 to 90%
Detectable respiration rate
Mainstream:	3 to 60 breaths/min
Measuring accuracy:
TG-900P:	±4 mmHg (0 ≤ CO2 ≤ 40 mmHg)
	±10% reading (40 < CO2 ≤ 76 mmHg)
	(When 1 atmospheric pressure, air inspiration, no condensation)
CO2 value display update cycle:	Every 3 s or when alarm is generated
Alarm:
Upper limit range:	2 to 99 mmHg in 1 mmHg in 1 steps, OFF
1.14	Service Manual BSM-4100