Nihon Kohden EC 1100 User manual

Life Scope EC

BEDSIDE MONITOR

BSM-1101/1102

0634-001334B

CONTENTS

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General Information ................

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Replaceable

Parts List

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QI-101P Network Card ii

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General i

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Parts Description

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Service Manual BSM-1101/1102

C.5

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.

On panel

Symbol			Description					Symbol			Description
	"On"	only	for	a part		of	the			|
(9)	|							ONY	Alternating current
	equipment
	"Off"	only	for	a	part	of	the		|	|	|
	|								Equipotential		terminal
	equipment
/N	Attention,		consult		operator's manual				Serial	number
	Output	terminal							Year	of manufacture

Service Manual BSM-1101/1102

Symbol

1	y	|
|	À	E

®

A

(Г

Ч |

>]

B | im

| ©

9

		Description		Symbol					Description
Defibrillation-proof type CF applied
part					(at	Home	key
Defibrillation-proof type BF applied					5	Other	key
part
Type	CF	applied	part		©	NIBP	key
Type	BF	applied	part		a	ECG	key
Power	lamp					Record		key
Battery						Record		setup	key
Battery charging				<	>	Intensity		control
Alarm	off/suspend			"O:		Brightness
List/trend		key				Alarm	sound		volume
NIBP	start					QRS	sync sound volume
NIBP	stop

Service Manual BSM-1101/1102

On screen

Symbol

€ Dx

PR

Ki

CA

Other

Symbol

ES

CE

0086

Description

Alarm recording off

Alarm suspend with remaining

minutes

Alarm recording

QRS syne mark

Pulse sync mark

Network communicatin 5

Description

Recycle

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.

Symbol

[|<

4

G

(O

Description

Out of paper

Paper magazine open

Manual recording

Periodic recording

Calibration

Service Manual BSM-1101/1102

Section 1 General

Introductiom .4

1.1

Service Policy and Patient Safety Checks

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1.2

Service Policy .4

1.2

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Specifications .4

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1.4

VitalSignsList...................................

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External

Output

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1.5

Recorder

WS-120P (Option) ...............

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Battery … ee

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Transmitter ZB-800PG/PK (optional) ини

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Transmitter ZB-800PA (optional)

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PowerReguiremenis .........................................

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1.6

ENVIFONMENT............

1.6

DimensionsandWelight.....................................

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Composition

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Panels and Controls .4

1.8

Front Pane| .4

1.8

Right

Side Panhel................

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Rear Panel eee

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Storage and TranSpott .......................

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Storage...................

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Hard Keys and Soft Keys

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Upgrading System Software/Changing Language on Screen „ee

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How

to Upgrade

the

Instrument

System

Software

and

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a

Language

on

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1.15

Service Manual BSM-1101/1102

1C.1

1. GENERAL

This service manual is intended for use by qualified service personnel

only.

It

provides

the

information

required to

understand,

troubleshoot,

service,

maintain,

and repair the BSM-1101

or

BSM-1102

Bedside

Monitor

(referred to

as

the

“instrument”

in

this

service

manual).

All replaceable

parts

or

subassemblies

of

this

instrument

and

its

optional

units

are

clearly

listed

and

illustrated

with

exploded

parts

views

to

aid

you

in

parts

location

and repair.

Section 6, “Maintenance,” describes the maintenance that should

be

performed

by

qualified service personnel only. The maintenance section in

the

operator’s

manual

describes the maintenance that can be performed by the user.

Although the operator’s manual is written

primarily

for

the user,

it is

important

for

service

personnel

to

thoroughly

read

both

the

service

manual

and

the

operator’s

manual before attempting to troubleshoot, service, or maintain the instrument.

Service Manual BSM-1101/1102

1.1

1. GENERAL

Service Policy

Nihon

Kohden Corporation’s basic

policy

for technical

service is

to replace any

faulty

printed

circuit board

(board),

part,

or unit

with a

new

one.

This

is because

most

of the

boards

are

multilayer

boards

with surface-mounted electrical devices.

We do

not

recommend

the

repair

or

replacement

of electrical

devices

on these

multilayered

boards

outside

the factory.

NOTE

Patient Safety Checks

When ordering parts or accessories from your nearest Nihon Kohden

Corporation distributor, please provide the name or					model	of	the
device and the NK part number and		part name		listed	in this service
manual. This	helps us attend to your	needs	promptly.		Always		use parts
and accessories recommended or supplied			by	Nihon	Kohden
Corporation	to ensure the maximum	performance of			your	instrument.

Periodic maintenance procedures and self-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 operating

safely,

patient

safety checks should be performed on the instrument before initial installation,

periodically

after

that,

and

after a repair is made

on the

instrument.

For patient safety checks, perform the following checks as described in the

International Electrotechnical

Commission’s standard,

IEC 60601-1

(1988):

e

Ground

impedance

check

e

Earth

leakage

current

check

e

Enclosure

leakage

current

check

e

Patient

leakage

current

check

e

Withstanding voltage

check

1.2	Service Manual BSM-1101/1102

1. GENERAL

Display

Display

size

5.5 inches, TFT type LCD

Waveform

display

method

Non-fade moving or non-fade

fixed method

Screen

size

111

x

83

mm

Resolution

320

x

240

dots

Number

of

waveform traces

2

Sweep

speed

12.5

mm/s

or

25

mm/s

Waveform

display

time

4.45

s

(at

25

mm/s)

Waveform

display

colors

7

Numeric

display

colors

6

Waveform

freeze

Not

provided

Display

waveforms

ECG

and

Pulse

(SpO,)

Numerical

data display

Heart

rate

(or

pulse

rate),

SpO,,

NIBP

(systolic,

diastolic,

mean)

Trendgraph

Trend

parameters

Heart

rate

(or

pulse

rate),

SpO.,

NIBP

(systolic,

diastolic,

mean)

Trend

period

1,

2,

4,

8,

or

24

hours

Alarm

Alarm

items

Heart

rate

(or

pulse

rate),

SpO., NIBP (systolic, diastolic, mean)

Alarm

indication

Highlighted message, alarm sound, alarm bar LED

Alarm

suspend

Provided

(for

a

specified period)

ECG

Measurement

ECG

leads

3-electrode lead: I, II, III

Defibrillation discharge protection

Provided

ESU

interference

filter

Provided

Pacing

pulse count

elimination

Provided

Filter

Diagnosis/Monitoring

filter

selection

Frequency

response

Diagnosis: 0.05 to 115 Hz (>—3 dB)

Monitoring:

0.4

to

25

Hz

(>—3

dB)

Heart

rate

counting

range

12

to 300

bpm

Measuring

accuracy

+

2

bpm

Alarm

limits

Upper:

20

to

300

bpm,

in

5

bpm

steps

Lower:

15

to

295

bpm,

in

5

bpm

steps

SpO,

Measurement

BSM-1101:

Measuring

range

50%

to 100%, in 1%

steps

Measuring

accuracy

+

2

digits

(80

<

SpO;<

100)

+

3

digits

(50

<

SpO,<

80)

Alarm

limits

Upper:

51

to

100%,

in

1%

steps

Lower:

50

to

99%,

in

1%

steps

BSM-1102:
Measuring range	1% to 100%
Service Manual BSM-1101/1102	1.3

1. GENERAL

Alarm limits

Upper:

51

to

100%,

in

1%

steps

Lower:

50

to

99%,

in

1%

steps

Measuring

range:

SDO>:

1 to

100%,

in

1%

steps

Pulse

rate:

20

to

250

bpm

Measuring

accuracy:

70

to

100%:

D-25/D-25L: +2 digits

DS-100A: +3 digits

N-25: +2 digits

D-YS:

+3

digits

1-20: +2 digits

D-20: +2 digits

OXICLIQ

I:

+2.5

digits

OXICLIQ

P:

+2.5

digits

OXICLIQ

A:

+2.5

digits

OXICLIQ

N:

+2.5

digits

RS-10: +3.5 digits

D-YSE: +3.5 digits

D-YSPD: +3.5 digits

OXIBAND

A/N:

+3

digits

OXIBAND

P/I:

+3

digits

OXI1-2-3 A/N: +2.5 digits

OXI1-2-3

P/I:

£2.5

digits

80

to

100%:

R-15: +3.5 digits

Alarm limits:

Upper:

51

to

100%

Lower:

50

to

99%

Non-invasive Blood Pressure Measurement

Measuring

method

Oscillometric

Display

value

Systolic,

diastolic, and

mean

pressures

Pressure

display range

0 to

300

mmHg

Accuracy

+3

mm

Hg

( < 200

mmHg)

+ 4

mm

Hg

( >200

mmHg)

Measuring

range

Adults/children

Systolic:

50

to

260

mmHg

Mean:

40

to

240

mmHg

Diastolic:

30

to

220

mmHg

Neonates

Systolic: 40 to 120 mmHg

Mean:

30

to

100

mmHg

Diastolic: 20 to 90 mmHg

Measurement modes

Manual

Continuous:

15

min

Automatic:

2,

2.5,

5,

10,

15, 30, 6 min interval, OFF

Safety

Cuff

pressure

limiter:

>

300

mmHg

(adults/children)

>150

mmHg

(neonates)

Cuff

inflation

time

limiter:

>161

s

(adults/children)

>81

s

(neonates)

Rapid deflation in case of power failure

Alarm limits

Upper:

15

to

260

mmHg,

in

5

mmHg

steps

Lower:

10

to

255

mmHg,

in

5

mmHg

steps

1.4

Service Manual BSM-1101/1102

1. GENERAL

Vital

Signs

List

Parameters

Heart

rate,

pulse

rate

NIBP

(systolic,

diastolic, mean)

and

SpO,

Total

number

of

120

for

periodic

vital

signs

list

measurement

times in list

120

for

NIBP

list

External

Output

ZB-800PA

interface

ZB-800PG

interface

ZB-800PK

interface

Recorder WS-120P (option)

Paper

speed

12.5

mm/s,

25

mm/s

Recording

mode

Waveform

recording,

trend

recording,

list

recording

Number

of

channels

2 max

Annotation

printing

Date

and time,

reason

for recording, parameter data, ECG

lead,

filter on/off,

sensitivity,

recording

speed

Effective

printing

width

48 mm

Battery

Type

of

battery:

NKB-101,

NiCd,

1.7

AH

Operation

time:

Approx.

2

hours

(no

recording,

no

alarm

occurrence, no NIBP

measurement and

the POWER SAVE MODE set

to on) with fully charged new battery

Charging

mode:

Standard

and

trickle

charging

mode,

automatic

selection

Battery life:

Approx.

200 charge/discharge

cycles

Transmitter ZB-800PG/PK (optional)

Transmission

frequency

CH1001

to

1080:

420.0500

to

421.0375

MHz,

12.5

kHz

steps

CH2001

to

2120:

424.4875

to

425.9750

MHz,

12.5

kHz

steps

CH3001

to

3040:

429.2500

to

429.7375

MHz,

12.5

kHz

steps

CH4001

to

4080:

440.5625

to

441.5500

MHz,

12.5

kHz

steps

CH5001

to

5080:

444.5125

to

445.5000

MHz,

12.5

kHz

steps

CH6001

to

6080:

448.6750

to

449.6625

MHz,

12.5

kHz

steps

CH8001

to

8009:

450.930

to

451.090 MHz, 20 kHz steps

CH8011

to

8020:

439.700

to

439.925 MHz, 25 kHz steps

CH8021

to

8024:

457.525

to

457.600 MHz, 25 kHz steps

CH8025

to

8032:

467.750

to

467.925 MHz, 25 kHz steps

CH8037

to

8046:

448.000

to

448.275

MHz,

25

kHz

steps

CH8047

to

8069:

458.5125

to

458.7875

MHz,

12.5

kHz

steps

CH8070

to

8136:

433.100

to

434.750 MHz, 25 kHz steps

CHA000

to

COFF:

420.000

to

472.79375

MHz,

6.25

kHz

steps

Transmission

power

0.4mW

Modulation

method

FSK (Frequency-Shift-Keying)

Bandwidth

8.5

kHz

max.

Frequency

deviation

+1.75

kHz

Transmitter ZB-800PA (optional)

Transmission

frequency

CH7001

to

7997:

457.5125

to

469.9625

MHz,

12.5

kHz

steps

Transmission

power

0.4

mW

Modulation

method

FSK

(Frequency-Shift-Keying)

Service

Manual

BSM-1101/1102

1. GENERAL

Bandwidth

8.5

kHz max.

Frequency

deviation

+1.75

kHz

Power

Requirements

Line voltage

BSM-1101/1102J:

100

to

127

V+10%

AC,

50/60

Hz

BSM-1101/1102K:

220

to

240

V+10%

AC,

50/60

Hz

BSM-1102:

117

V+10%

AC, 60 Hz

Power

consumption

AC

operation:

70

VA

Battery operation:

40

W

Environment

Operating

temperature

10

to

40°C

(50 to

104°F)

Storage

temperature

—20

to 60°C

(—4

to

140° F)

Operating

humidity

30

to

90%

RH,

non-condensing

Storage

humidity

15

to

90%

RH

Operating

atmospheric pressure

68

to

106

kPa

Storage

atmospheric

pressure

68

to

106

kPa

Dimensions

and

Weight

Dimensions

180

W

x

206

H

x

197 Dmm

Weight

3.5

kg

(excluding

battery)

Safety

Standards

Safety

standard

IEC

60601-1

(1988)

- Collateral

Standard

Amendment 1 (1991-11), Amendment 2

(1995-03)

IEC

60601-1-2 (1993-04) - Collateral Standard: Electromagnetic compatability

IEC

60601-2-27 (1994-03) -

Particular requirements for the safety of

electrocardiographic

monitoring

equipment

IEC

60601-2-30 (1995-03) -

Particular

requirements

for the safety of automatic

cycling in direct blood pressure monitoring equipment

According

to

the

type of

protection against

electrical

shock

|

AC

power:

CLASS

I EQUIPMENT

Battery

power:

INTERNALLY

POWERED EQUIPMENT

According

to

the

degree

of

protection

against

electrical

shock

DEFIBRILLATION-PROOF TYPE CF APPLIED PART

(ECG)

DEFIBRILLATION-PROOF TYPE BF APPLIED PART

(NIBP)

TYPE BF APPLIED PART (SpO;)

According

to

the

degree

of

protection

against

harmful

ingress of water

Ordinary

EQUIPMENT

According

to

the

degree

of

safety of

application

in

the

presence

of

a FLAMMABLE

ANAESTHETIC

MIXTURE WITH

AIR, OR

WITH

OXYGEN

OR NITROUS

OXIDE:

EQUIPMENT

not

suitable

for

use

in the

presence

of FLAMMABLE

ANAESTHETIC MIXTURE WITH AIR, OR WITH OXYGEN OR

NITROUS

OXIDE.

According

to

the

mode of

operation

CONTINUOUS

OPERATION

Torque Specifications (N-m equivalents)

Handle

Shoulder

Screws

1

Nem

Bezel Bosses: Hand Tighten Max

0.3

Nem

Machine Screws into metal inserts

0.9-

1.1

Nem

Self-tapping

Screws

into

plastic

0.3

- 0.6

Nem

*

|

Nem

—approx.

10

kgecm

—

approx.

8.68

İbeinch

1.6	service Manual BSM-1101/1102

BSM-1101 BSM-1102

WS-120P

1. GENERAL

Front Enclosure Assembly,

UR-3496 Encoder Board Assembly

UR-3500 Power Switch Board Assembly

| Rear Enclosure Assembly with Power

— Internal Support Assembly, Pump Valve

LI UR-3492 Analog Board Assembly for BSM-1101

UR-34921 Analog Board Assembly for BSM-1102

UR-3495 SpO, Board Assembly for BSM-1101

MP-205 SpO, Board Assembly for BSM-1102

| UR-3493

Digital Board Assembly

UR-3494 PCMCIA Board Assembly

ZB800 Interface Board Assembly

UR-3501 Recorder Interface Board Assembly

UR-3497 Hall Effect Board Assembly

UR-3514 Option Interface Board Assembly

Recorder Assembly

UR-3491 Recorder Power Board Assembly

—UR-3502 Recorder Digital Board Assembly

RG-920P

Drive Unit

Service Manual BSM-1101/1102

1.7

1. GENERAL

Front Panel

1.8	Service Manual BSM-1101/1102

1. GENERAL

Name

1.Alarm bar

2.Suspend key

3.	Function Dial 1 and 2
4.	Function Dial		lamp 1 and 2
5.	Review	key
6.	NIBP	start/stop	key
7.	Home	key	A

8.ECG, SpO,, NIBP and ETC hard/soft (function) keys

^\^ ECG

SpO2

	e	NIBP
	(5	ETC
9.	Power	switch
10.	Record key
		S

11.Record setup key

12.Display

13.AC power lamp

14.AC operation lamp

15.Battery operation lamp

16.	Battery charging lamp
7 .	MULTI	τικ ke ?
18.	TEMP	key

Description

Red

or

orange

lamp

blinks according to the alarm

settings.

Green

lamp

blinks in synchronization with the QRS.

Press

to

temporarily

suspend the

alarm function

alarm

sound,

alarm

detection,

alarm

recording

and

screen

messages.

Used

for

setting

alarm limits and scrolling a list or trendgraph.

Lights

when

the

function

dials

are

available.

Press

to

display

the

List screen, Trend screen and

Arrhythmia

Recall

screen.

Starts or stops NIBP measurement.

Press

to

display

a

monitoring

screen.

When

soft

keys

are displayed on the screen, these keys function as the

displayed

function

keys.

When

soft

keys

are

not

displayed

on

the screen, these

keys

function

as

hard

keys

which

call

up

the

ECG,

SpO,,

NIBP

setting

screens

and

ETC

screen,

respectively.

Push

to

turn

the

monitor

power

on

or

off.

When

turning

the

power

off,

press

and

hold

the

switch

for

at

least

one

second.

Press

to

start or

stop recording when using the optional recorder.

Press

to

select

a

combination

(pattern)

of

recording waveform(s)

when

using

the

optional

recorder.

5.5

inch

color

LCD.

Lights when monitor power is on.

Lights when operating on AC power.

Lights when operating on battery power.

Lights

or

slowly

blinks

when

charging.

Press

to

call

up

the

setting screen of the parameter

connected

to

the

MULTI

socket.

(Refer

to

the Appendix.)

Press

to

call

up

the

TEMP

SETUP

screen.

(Refer

to

the

Appendix.)

Service Manual BSM-1101/1102

1.9

1. GENERAL

Right Side Panel

See	caution	in	the	below
description		4.

4

A

Refer	to	warning		and
caution		in	“Grounding		and
Connecting			the	Power
Cord”	in	Section		2 of	the
operator’s			manual.

			Name							Description
1.	Brightness control				Turn	clockwise to increase the screen brightness.
2.	Alarm	sound	volume	control	Turn	clockwise	to	increase	the	alarm sound	volume.
3.	Synchronous		sound	volume	control | Turn	clockwise	to	increase	the	synchronous	sound volume.
4.	AUX	socket			For	the ZB-800PG/PK transmitter.

CAUTION

Connect only the ZB-800PA/PG/PK transmitter to the connector marked with /\ by following the specified procedure. Otherwise,

electrical leakage current may harm the patient and operator.

5.	Equipotential		grounding terminal	© |	For	an	equipotential			grounding lead.
6.	AC	SOURCE	power cord socket	|	For	the	AC	power		cord.
7.	Fuse	holders			For	two	fuses:		T2A/250 V.
8.	Hook handle				Use	to	carry the monitor or hook				it onto a bedside rail.
9.	Speaker				For	alarm		and	ORS	synchronous	sounds.

1.10	Service Manual BSM-1101/1102

1. GENERAL

Left Side Panel

A

Refer to warning and caution in “General Safety Information” in Section | of the operator’s manual.

Refer to warning and caution in "General Safety Information” in Section | of the operator’s manual.

Name

1. Paper magazine release lever

2. Recorder (option)

3. Cuff socket

4, SpO, socket

5. ECG socket

6. Temp socket

7. MULTI socket

Description Push to open the paper magazine. 2-channel thermal array recorder.

Connects to the NIBP air hoses.

Connects to the SpO, connection cord.

Connects to the ECG connection cord for measuring ECG.

Connects to the temperature probe cable. (Refer to the Appendix.)

Connects to the parameter to be measured from invasive blood pressure, respiration or CO,. (Refer to the Appendix.)

Service Manual BSM-1101/1102

1. GENERAL

Rear Panel

NIHON KOHDEN	See Caution in the
	below description 1.
	2
	3
==πο ση	о 4

Name	Description
1. PC card slot	For a OI-101P network card.

CAUTION

e

Use

only the

Nihon

Kohden

card.

e

Do

not

press

the

PC

card eject

button while the PC card lamp

is

lit. This

may

damage

the

PC

card

and monitor.

2.

PC

card

lamp

Lights

while

data

is

read

from

or

written

to

the PC

card.

3.

PC

card

eject

button

Press

to

eject

the

PC

card.

4.

Battery

pack

holder

Remove

the

cover

and

insert

the battery

pack.

Service Manual BSM-1101/1102

1. GENERAL

Follow these procedures when storing or transporting the instrument.

Storage	Before storing	the	instrument	for a long	time, perform the following steps:
	1. Disconnect	the	power cord	from the	instrument.

2. Remove the battery from the instrument.

3. Cover the instrument with a dust cover.

4.	If possible,		store the		instrument in its original shipping container.
5.	Make sure		the	storage	place meets the following storage conditions for the
	duration	of	the	storage:
	Storage	temperature			—20	to	60°C (-4	to 130°F)
	Storage	humidity			15	to	90% RH,	non-condensing

Transport	To	transport	the instrument, perform the following steps:
	1.	Disconnect the power cord from the instrument.
	2.	Remove		the	battery	from	the	instrument.
	3.	Cover the		instrument		with	a	dust cover.
	4.	If possible,			transport	the instrument in its original shipping container.

Service Manual BSM-1101/1102

1.13

1. GENERAL

The

four

keys on the

front

panel

below

the

screen

function

as

either

hard

keys

or

soft

keys,

depending

on

the

screen

display.

When

the normal monitoring screen is

displayed,

the

four

keys

function

as

the

ECG, SpO,, NIBP, and ETC

hard keys,

and

call

up

the

ECG,

SpO,,

NIBP,

and

ETC

screens,

respectively.

When

any screen other than the normal monitoring

screen

appears,

a soft

key

display

appears

at the bottom

of the

screen

and

the

four keys correspond to the soft

key functions. For example, when the ECG

key

is

pressed

at

the

normal monitoring

screen,

the ECG

setting

screen

displays

and

the

ECG

key

function changes

to

LEAD

NAME

(ECG

waveform

lead selector soft

key).

In this

manual,

soft

keys

are

indicated

by brackets

(for example,

the

[LEAD

NAME]

key).

Service Manual BSM-1101/1102

1. GENERAL

CAUTION

Upgrading		the system		software and changing the language on screen
erases	all system		and	individual bed settings. Write	down these
settings	so	they	can be	re-entered after the software	upgrade.

The instrument uses a program card for upgrading its system software and

changing a language on screen. When

the

instrument

detects

that

a

program

card

1s

inserted

into

its memory

card

slot during

the

booting

stage

after

it

1s

turned

on, it

checks

the

program

card

for

a

system

program

or

language.

If

the

program

card

contains

a

newer

version

of the

system

program or language, the instrument

automatically replaces its current system

program

or

language

information

with

the

new

one.

If

the program

card

contains

a system

program

whose

version

number

is

the

same

or older than the one in the instrument,

however,

a

replacement

confirmation message appears on the

screen.

If

the program

card does not contain a

system

program,

the

instrument

continues

the

boot-up

process.

In the system software upgrading

or

language

changing

process,

the

instrument

first deletes the old system software

or language

stored

in

its

system

ROM.

Then

it

checks whether the data in the system

ROM is completely

deleted.

When

the data is

completely

deleted,

it copies

the

new

version

of

the

system

program

or language

information from the program card to

the

system

ROM

and

then

checks

the

copy

process.

After the

data is

successfully

copied,

it

performs

the

self-check

programs

to check

the

instrument.

How to Upgrade the Instrument System Software and Change a Language on Screen

1. Write down the system settings and individual bed settings of the instrument.

2. Insert the program card into the PC card slot of the instrument.

3.Turn on the instrument. The instrument performs the upgrading process and self-check programs. The Diagnostic Check and System Setup screen appears.

4.Confirm that the new system software version number appears.

Service Manual BSM-1101/1102

Section 2 Troubleshooting

General Information .4					2.1
How to TroubleSNOOt ..................			ii	rara	2.2
Power-Related	Problems			ii	2.3
DisplayProblems..........................................			neee		2.4
SsoundProblems................................		eee	eeeaeeeeeeneeeneeneenenenenenanın 2.5
Key Operation	Problems		eee	PKR K RKK	2.6
Recording Problems ..............		e			2.7
ECG Problems .4					2.9
spO,Problems..............................................		sise			2.10
Non-Invasive Blood Pressure Problems				i	2.11
Signal Noise Problems .4					2.14

Service Manual BSM-1101/1102

2C.1

2. TROUBLESHOOTING

Use this section to locate, identify, and solve an instrument problem. The troubleshooting tables in this section are divided into 8 general problem areas:

e	Power-related
e	Display
e	Sound
e	Key operation
e	Recording
e	ECG
e	SpO,
e	NIBP

Service Manual BSM-1101/1102

2.1

2. TROUBLESHOOTING

1. Determine which troubleshooting table to use.

2. Inthe “Problem” column, find the item that matches the problem.

3.	Do the action recommended	in	the	“Action”	column.
4.	Ifthe problem is not solved,	do	the	action for	the next possible cause or
	criteria.

5.If none of the actions solve the problem, contact your nearest Nihon Kohden Corporation dealer.

NOTE

Before contacting Nihon Kohden Corporation or your distributor for

technical		support,	please complete			a copy of the Maintenance					Check
Sheet	(the	original	is	provided	at the	end	of Section	6,	“Maintenance,”
of this	manual), and		if	possible,	provide additional			detailed		information
on the problem. Send the completed						copy	of the Maintenance				Check
Sheet to Nihon Kohden Corporation						or your distributor. This helps
Nihon Kohden Corporation or your						distributor provide			you	with the
best support.

2.2	Service Manual BSM-1101/1102

2. TROUBLESHOOTING

	Problem
No	beep	sound	and the
AC	power	lamp	does
not	light	in AC	power.

No beep sound and the

battery		power		lamp
does not light in DC
power operation.
No	beep	sound		and	the
AC	power		lamp and
battery		power		lamp	do
not	light.
DC	power		operation
time	is	shorter		than

expected.

Possible Cause/Criteria

1. No AC power input.

. One or both of the AC inlet fuses is blown.

. Faulty connection to J007 on the Analog borad.

. Faulty connection to JO10 on the Digital board.

1.	The	battery	is	discharged.
2.	The	battery	is	damaged.

3.Faulty connection to J020 on the Analog board.

. Faulty connection to JO10 on the Digital board.

. The fuse on the instrument is blown.

2.

Faulty

power

supply

unit.

3.

Faulty

Power

Switch

board.

. The

battery

is

near

the end

its life

(about

1

year).

. Poor

contact

between

the battery

and

its

contact

points

in the

battery

compartment.

. The

battery

is

experiencing

“memory

effect”

in which

its

charge

capacity

is diminished

by

frequent

incomplete

charging.

Service Manual BSM-1101/1102

					Action
1.	Check the AC power input.
.	Determine			and correct the cause of the
	blown fuse, then replace the fuse.
.	Check		the	connection.
.	Check		the	connection.
1.	Charge the battery before using.
2.	Replace		the battery.
3.	Check		the	connection.
.	Check		the	connection.
.	Determine			and correct the cause of the
	blown fuse, then replace the fuse.
2.	Replace the power supply unit.
3.	Replace the Power Switch board.
.	Replace		the battery.
.	Clean the			contact points			between	the battery
	and	its	compartment			terminals.
.	To	clear this			“memory effect”, fully
	discharge			and	then	fully	charge	the battery a
	few	times		or	replace	the	battery.

2.3

2. TROUBLESHOOTING

Problem

No display and the backlight does not light up.

No	display, but		the backlight lights
and	the NIBP START/STOP key is
operational.
No	display, the backlight lights, and
the	NIBP	START/STOP		key is	not
operational.
Fine	vertical or horizontal lines on
the	LCD.
Some randomly			scattered	pixels	on
the	LCD	do not	light. Up	to 6 pixels

not lighting when brightness is set to

maximum	is	considered		normal.*
Some randomly			scattered	pixels on
the LCD have		abnormal		color.	Up to
6 with abnormal color when
brightness	is	set	to maximum		is
considered	normal.*
The characters are garbled or
waveforms	are		distorted.

The display is dim and turning the brightness control knob does not make it brighter.

The instrument repeatedly displays the system error messages and resets itself.

No waveform is displayed.

Waveforms of some parameters are not displayed.

Possible

Cause/Criteria

1.

Faulty

connection

between

J312

on

the

Power

Switch

board

and

J212

on

the Encoder board or faulty

connection

between

CNT

on

the LCD

unit

and

J013

on

the

Digital

board.

2.

Faulty

LCD

unit.

1.

Faulty

connection

between

CN1

on

the

LCD

unit

and

J013

on

the

Digital

board.

2.

Faulty

LCD

unit.

3.

Faulty

Digital

board.

Faulty

Digital

board.

Faulty

LCD

unit.

Faulty

LCD

unit

if

the

number

of pixels

that

do

not

light

when

the

brightness

15

set

to

maximum

is

more

than

6.

Faulty

LCD

unit

if

the

number

of pixels

that have abnormal color when the

brightness is

set

to

maximum

is

more

than

6.

Faulty

Digital

board.

1. Faulty

connection between Encoder

board

and

Digital

board.

2.

The

display is

dimmer

during

DC

operation

than

during

AC

operation.

3.

The

backlight

unit

is

near

the

end

of

its useful life (10,000 hours of

continuous

operation).

4.

Faulty

Digital

board.

Faulty

Digital

board.

1.

Faulty

connection

between

J009

on

the Analog board and J109 on the

Digital

board.

2.

Faulty

Analog

board.

3.

Faulty

Digital

board.

1.

Faulty

sensor

or

input

cable/electrode

cable for

that

parameter.

2.

Faulty

connection

between

J009

on

the Analog board and J109 on the

Digital

board.

3.

Faulty

Analog

board

or

SpO,

board.

4.

Faulty

Digital

board.

Action 1. Check the connection.

2. Replace the LCD unit.

1. Check the connection.

2.	Replace		the	LCD		unit.
3.	Replace		the	Digital board.
Replace		the	Digital			board.
Replace		the	LCD		unit.
Replace		the	LCD		unit.
Replace		the	LCD		unit.

Replace the Digital board.

1. Check the connection.

2. Use AC power for a brighter display.

3. Replace the LCD unit.

4. Replace the Digital board. Replace the Digital board.

1. Check the connection.

2.	Replace	the	Analog	board.
3.	Replace	the	Digital	board.

1.Check and, if necessary, replace the sensor or cable/electrode cable for

that parameter.

2. Check the connection.

3.Replace the Analog board and/or SpO, board.

4.Replace the Digital board.

* For TFT LCD	screen, it is considered normal if some pixels have abnormal color or do not light.
2.4	Service Manual BSM-1101/1102