GE MAC 1200 User guide

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3

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MAC

1200

Servicing

Instructions

Version

1.2

227

492

21

ENG

Revision

F

GE

Medical

Systems

Information

Technologies

Caution:

During

repairs/service

interventions,

observe

the

protective

measures

against

damage

due

to

ESD.

GE

Medical

Systems

Information

Technologies

considers

itself

responsible

for

the

effects

on

safety,

reliability,

and

performance

of

the

equipment,

only

if:

-

assembly

operations,

extensions,

readjustments,

modifications,

or

repairs

are

carried

out

by

GE

Medical

Systems

Information

Technologies

or

by

persons

authorized

by

GE

Medical

Systems

Information

Technologies,

-

the

electrical

installation

of

the

relevant

room

complies

with

the

applicable

national

and

local

requirements,

and

-

the

instrument

is

used

in

accordance

with

the

instructions

for

use.

This

manual

contains

service

information;

operating

instructions

are

provided

in

the

operator’s

manual

of

the

instrument.

This

manual

is

in

conformity

with

the

instrument

at

printing

date.

All

rights

are

reserved

for

instruments,

circuits,

techniques,

and

names

appearing

in

the

manual.

Trademarked

names

appear

throughout

this

document.

Rather

than

list

the

names

and

entities

that

own

the

trademarks

or

insert

a

trademark

symbol

with

each mention

of

the

trademarked

name,

the

publisher

states

that

it

is

using

the

names

only

for

editorial

purposes

and

to

the

benefit

of

the

trademark

owner

with

no

intention

of

improperly

using

the

trademark.

900 SC,

ACCUSKETCH,

AccuVision,

APEX

,

AQUA-KNOT,

ARCHIVIST,

Autoseq,

BABY

MAC,

C

Qwik

Connect,

CardioServ,

CardioSmart,

CardioSys,

CardioWindow,

CASE,

CD

TELEMETRY,

CENTRA,

CHART

GUARD,

CINE

35,

COROLAN,

CORO,

COROMETRICS,

Corometrics

Sensor

Tip,

CRG

PLUS,

DASH,

Digistore,

Digital

DATAQ,

E

for

M,

EAGLE,

Event-Link,

FMS

101B,

FMS

111,

HELLIGE,

IQA,

IMAGE

STORE,

INTELLIMOTION;

LASER

SXP;

MAC;

MAC-LAB;

MACTRODE;

MARQUETTE;

MARQUETTE

MAC;

MARQUETTE

MEDICAL

SYSTEMS,

MARQUETTE

UNITY

NETWORK,

MARS,

MAX,

MEDITEL,

MEI,

MEI

in

the

circie

logo,

MEMOPORT,

MEMOPORT

C,

MINISTORE,

MINNOWS,

Monarch

8000,

MULTI-LINK,

MULTISCRIPTOR,

MUSE,

MUSE

CV,

Neo-Trak,

NEUROSCRIPT,

OnlineABG,

OXYMONITOR,

Pres-R-Cuff,

PRESSURE-SCRIBE,

QMI,

QS,

Quantitative

Medicine,

Quantitative

Sentinel,

RAC,

RAMS,

RSVP,

SAM,

SEER,

SILVERTRACE,

SOLAR,

SOLARVIEW,

Spectra

400,

Spectra-Overview,

Spectra-Tel,

ST

GUARD,

TRAM,

TRAM-NET,

TRAM-RAC,

TRAMSCOPE,

TRIM

KNOB,

Trimline,

UNITY

logo,

UNITY

NETWORK,

Vari-

X,

Vari-X

Cardiomatic,

VariCath,

VARIDEX,

VAS,

and

Vision

Care

Filter

are

trademarks

of

GE

Marquette

Medical

Systems,

Inc.,

registered

in

the

United

States

Patent

and

Trademark

Office.

12SL, 15SL,

Access,

AccuSpeak,

ADVANTAGE,

BAM,

BODYTRODE,

Cardiomatic,

CardioSpeak,

CD

TELEMETRY®-LAN,

CENTRALSCOPE,

Corolation,

EK-Pro,

EDIC,

Event-Link

Cumulus,

Event-Link

Cirrus,

Event-Link

Nimbus,

HI-RES,

ICMMS,

IMAGE

VAULT,

IMPACT.wf,

INTER-LEAD,

LIFEWATCH,

Managed

Use,

MARQUETTE

PRISM,

MARQUETTE®

RESPONDER,

MENTOR,

MicroSmart,

MMS,

MRT,

MUSE

CardioWindow,

NST

PRO,

NAUTILUS,

OCTANET,

02

SENSOR,

OMRS,

PHi-Res,

Premium,

Prism,

QUIK

CONNECT

V.

QUICK

CONNECT,

QT

Guard,

SMARTLOOK,

SMART-PAC,

Spiral

Lok,

Sweetheart,

UNITY,

Universal,

Waterfall,

and

Walkmom

are

trademarks

of

GE

Medical Systems

Information

Technologies,

\nc.

Copyright

2002

GE

Medical

Systems

Information

Technologies

GmbH

GE

Healthcare

Service

Calls

and

Product

Support

Instructions

PN

403409-009

How

To

Reach

Us...

To

open

a

service

call

or

obtain

product

support

call

the

numbers

below:

800.558.7044

(US

&

Canada)

Outside

the

US,

contact

your

local

GE

representative

or

distributor.

For

other

product

information

please

contact

one

of

the offices

listed

on

the

back

cover

of

the

manual.

Ordering

Accessories

and

Service

Parts

Ordering

Manuals

Other

Questions

or

Problems

Order

accessories

(leadwires,

electrodes,

recording

papers,

etc.)

or

service

parts

(manuals,

circuit

boards,

cables,

software,

etc.)

from:

Accessories

and

Supplies

GE

Healthcare

8200

West

Tower

Avenue

Milwaukee,

WI

53223

Telephone:

800.558.5102

(US

only)

414.355.5000

(outside

US)

Fax:

414.355.3790

Service

Parts

GE

Healthcare

P.O.

Box

9100,

100

Marquette

Drive

Jupiter,

FL

33468-9100

Telephone:

800.558.7044

(US

only)

561.575.5029

(outside

US)

Fax:

800.421.6841

(US

only)

561.575.5050

(outside

US)

Have

the

following

information

available

before

calling:

part

number

of

the

defective

part,

or

model

and

serial

number

of

the

equipment,

part

number/name

of

the

assembly where

the

item

is

used,

and

item

name.

When

ordering

additional

operator

manuals,

be

sure

to

include

the

software

version

of

the

product.

For

additional

information

contact

one

of

the offices

listed

on

the

back

cover

of

the

manual

or

visit

our

website

at

http://www.gehealthcare.com.

403409-009H

5

January

2006

How

to

Reach

Us

1

GE

Medical

Systems

information

Technologies

8200

W.

Tower

Ave.,

Milwaukee,

WI

53223

U.S.A.

©

2006

General

Electric

Company.

All

rights

reserved.

GE

Medical

Systems

Information

Technologies,

a

General

Electric

Company,

going

to

market

as

GE

Healthcare.

How

to

Reach

Us

403409-009H

GE

Medical

Systems

MAC

1200

V

1.2

Page

3

Information

Technologies

227

492

21

Rev

F

1

Device

description

7

1.1

Block

circuit

diagram

of

entire

instrument

12

Mechanical

components

9

2

Functional

description

11

21

Switching

power

supply

11

22

PCB

NC

Battery

Charge

11

2.2.1

Charging

circuit

for

the

NC

battery

11

2.2.2

Device

behavior

depending

on

the

state

of

battery

charge

12

23

PCB

Control

CS

CI

12

2.3.1

Generation

of

internal

power

supplies

12

2.3.2

Switch

On/Off

circuit

13

2.3.3

ECG

recording

and

front-end

processing,

14

2.3.4

Controller

core.

14

2.3.5

Real time

clock

15

2.3.6

Memory

16

2.3.7

LCD

graphics

display

interface

16

2.3.8

Keypad

interface

17

2.3.9

Printhead

control

17

23.10

Motor

control

18

2.3.11

RS-232

interface

19

2.3.12

Buzzer

19

2.4

PCB

Modem

Supply

CS

M

19

2.5

Internal

interfaces

19

2.5.1

Mechanical

interfaces

19

2.5.2

Electronic

interfaces

20

2.5.2.1

Interface

to

the

switching

power

supply

20

2.5.2.2

Interface

to

the

PCB NC

battery

charge

20

2.5.2.3

Interface

to

the

LCD

Graphics

Display

22

2.5.2.4

Interface

to

the

keypad

22

2.5.2.5

Interface

to

the

printhead

22

2.5.2.6

Interface

to

the

motor

23

2.5.2.7

Interfaces

for

production

tests

24

2.5.2.8

Interface

to

PCB

Modem

Supply

CS

M

25

2.6

Interfaces

to

peripherals

26

2.6.1

Electronic

interfaces

27

2.6.1.1

RS-232

interface

27

2.6.1.2

Patient

input

28

2.7

Software

Updates

29

2.8

Limitations

29

3

System

test

functions

31

3.1

General

information

31

3.2

Test

start

31

3.3

Display

test

32

3.4

Keyboard

test

33

GE

Medical

Systems

MAC

1200

V

1.2

Page

4

Information

Technologies

227

492

21

Rev

F

3.5

Motor

test

33

3.6

Test

results

34

3.7

Self-test

34

3.8

Recording

test

35

3.9

V24

tests

35

3.10

Time

and

date

37

3.11

Electrode

test

37

3.12

Time

constant

38

3.13

Setting

the

device

model

38

3.14

Switching

over

the

program

for

interpretation

40

3.15

Pace

enhance

41

3.16

Serial

number

41

3.17

ACI-TIPI

41

4

Repair

instructions

43

4.1

Safety

instructions

43

4.2

Replacing

components

43

5

Troubleshooting

tips

47

6

Adjustment

instructions

51

7

Servicing

and

maintenance

53

7.1

Technical

inspection

53

7.1.1

Visual

check

53

7.12

Test

functions

54

7.1.2.1

Recommended

testing

instruments

and

accessories

54

7.1.2.2

Test

preparations

54

7.1.2.3

Operating

and display

unit

performance

tests

54

7.1.2.4

Test

for

recording

speeds

25

and

50

mm/s

55

7.1.2.5

Device

Test

result

check

55

7.1.2.6

RS-232

interface

test

55

7.1.2.7

Analysis

of

the

ECG

signals

and

HR

value

55

7.1.2.8

Pacemaker

identification

test

56

7.1.2.9

Identification

of

disconnected

electrodes

57

7.1.2.10

Checking

the

charge

status

of

the

NC

battery

57

7.1.3

Safety

Analysis

Tests

57

7.1.3.1

General

information

57

7.1.3.2

Protective

Earth

Resistance

Test

58

7.1.3.3

Measurement

of

Leakage

Current

58

7.1.3.3.1

Enclosure

Leakage

Current

Test

58

7.1.3.3.2

Patient

Leakage

Current

Test.

59

7.2

Maintenance,

cleaning,

disinfection

60

GE

Medical

Systems

Information

Technologies

8

Parts

List

9

Specifications

MAC

1200

V

1.2

227 492

21

Rev

F

Page

5

61

65

10

Device

Documents

73

GE

Medical

Systems

Information

Technologies

Revision

History

MAC

1200

V

1.2

227

492

21

Rev

F

Page

6

Each

page

of

this

manual

has

the

document

number

followed

by

a

revision

letter,

located

at

the

top

of

the

page.

This

letter

identifies

the

manual

update

level.

The

latest

letter

of

the

alphabet

corresponds

to

the

most

current

version

of

the

document.

The

revision

history

of

this

manual

is

summarized

below.

Date

ECO

No

Revision

March

05,1999

--

Α

May

10,

1999

062

136

B

June

29,

1999

062727

C

February

4,

2000

062920

D

January

9,

2002

068851

F

Remarks

V

1.0,

initial

release

Software

Package

for

MAC

1100/1200

(Software

change)

page

55,

new

MRI

Pin

4—

Coding

pin,

page

19,

Supplementation

to

chapter

3.4;

page

29

Software

Release

V

5.02

page

55,new

MRI,

PCB

Control

CS

CI,

Sheet

9

new

Index

PCB

Control

CS C,

new

Index

PCB

Battery

Charge

CS

CI,

new

Index

Device

Version

V1.1

with

Remote

Start

Input,

internal

Modem

Supply

and

Software

Release

V5.1

Software

Release

V5.21

for

MAC1200

GE

Medical

Systems

MAC

1200

V

1.2

Page

7

Information

Technologies

227

492

21

Rev

F

1

Device

description

This

Service

Manual

describes

device

version

V1.2

of

MAC1200

The

MAC

1200

is

portable

electrocardiograph

with

an

integrated

printing

unit.

it

is

used

to

acquire,

record

and

process

ECG

signals.

It

is

designed

for

line-power

and

battery

operation.

A

power

supply

and

battery

with

a

charging

circuit

are

integrated

into

the

instrument.

The

integrated

LCD

graphics

Display

shows

3

ECG

channels.

It

also

displays

status

information,

filter

settings,

speed/format,

gain

and

the

status

of

the

electrodes.

With

the

setup

feature,

the

user

is

able

to

setup

the

device

and

the

modes

for

his

own

needs.

The

patient

cable

for

the

acquisition

of

ECG

signals

is

connected

by

means

of

a

15-pin

connector

as

used

with

MAC

500.

Patient

cables

used

with

MAC

1000

cannot

be

connected

to

the

MAC

1200.

In

Automatic

Mode,

the

acquired

ECGs

can

be

transmitted

to

MUSE

or

a

PC

via

an

RS-232

interface.

With

the

additional

option

Patient

Memory,

all

acquired

ECGs

can

be

transmitied.

MAC1200

with

version

V1.1

has

all

features

of

the

version

V1.0

described

above,

additionally

version

V1.1

has

a

Remote

Start

Input,

an

internal

Modem

Power

Supply

and

the

new

Software

Release

V5.1.

Device

Part

number

Name

Supply

Voltage

Remarks

Version

V1.2

101

168

23

MAC

1200

95

...

240V

ac

US

version

Hardware

functional

blocks:

The

hardware

comprises

the

following

main

functional

blocks:

m

Switching

power

supply

m

NC

Battery

m

PCB

NC

Battery

charge

m

PCB

Control

CS

CI

m

PCB

Modem

Supply

CS

M

E

Printing

unit

m

Keypad

=

%

VGA

graphics

display,

monochrome

GE

Medical

Systems

Information

Technologies

MAC

1200

V

1.2

Page

8

227

492

21

RevF

1.1.

Block

circuit

diagram

of

entire

instrument

MAC1200

(US),

Version

V1.1

|

|

PCB

Modem

Supply

Modem

Supply

Programm

Memory

Boot

Internal

ECG RAM

Loader

RAM

buffered

Configuration

ECG

Input

Line

Power

E

Input

RS232

|

|

RS232

Memory

Driver

Interface

Keypad

Interface

Keypad

Display

LCD

Graphics

Display

ECG

Interface

1/4

VGA

Monochrome

AS

Display

Acquisition

Controller

Supply

"|

and

Core

Conditioning

Motor

Control

Motor

Real

Time

Clock

Thermal

i

buffered

Pinthead

Thermal

Printhead

Control

Printing

Unit

Logic

Supply

+5V_+3.3V

,

Device

Analog

Supply

On/OFF

Printhead

Control

Supply

PCB

Control

CS

CI

Line

Power

Input

ーー]

NC

Battery

with

Fuse

Ñ

MAC1200

(US)

Switching

PCB

Power

Supply

NC

Battery

V

1.1

+26,5V

Charge

14.01.2000

Line

Power,

NC

Battery