GE MAC 5000 Quick start guide

MAC5000 resting ECG
analysis system
field service manual
PN 2000657-002 Revision A

T-2

field service manual
PN 2000657-002 Revision B
MAC 5000 resting ECG analysis system

T-2
NOTE
Due to continuing product innovation,
specifications in this manual are subject to
change without notice.
Revision B
24 January 2000
Copyright GE Marquette Medical Systems, Inc. 2000. All rights reserved.
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, CORO, COROLAN, COROMETRICS, Corometrics Sensor Tip, CRG PLUS, DASH, Digistore, Digital DATAQ,
E for M, EAGLE, Event-Link, FMS 101B, FMS 111, HELLIGE, IMAGE STORE, INTELLIMOTION, IQA, LASER SXP,
MAC, MAC-LAB, MACTRODE, MANAGED USE, MARQUETTE, MARQUETTE MAC, MARQUETTE MEDICAL
SYSTEMS, MARQUETTE UNITY NETWORK, MARS, MAX, MEDITEL, MEI, MEI in the circle 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, UNION STATION, 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, EDIC, EK-Pro, Event-Link Cirrus, Event-Link Cumulus, Event-
Link Nimbus, HI-RES, ICMMS, IMAGE VAULT, IMPACT.wf, INTER-LEAD, IQA, LIFEWATCH, Managed Use,
MARQUETTE PRISM, MARQUETTE®RESPONDER, MENTOR, MicroSmart, MMS, MRT, MUSE CardioWindow,
NST PRO, NAUTILUS, O2SENSOR, Octanet, OMRS, PHi-Res, Premium, Prism, QUIK CONNECT V, QUICK
CONNECT, QT Guard, SMART-PAC, SMARTLOOK, Spiral Lok, Sweetheart, UNITY, Universal, Waterfall, and
Walkmom are trademarks of GE Marquette Medical Systems, Inc.
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.
MAC 5000 resting ECG analysis system
2000657-002
MD1322-018

Contents
Revision B i
MAC 5000 resting ECG analysis system
2000657-002
1Introduction ................................................. 1-1
Manual Information .................................................................. 1-3
Revision History ................................................................................. 1-3
Manual Purpose ................................................................................. 1-3
Intended Audience ............................................................................. 1-3
Conventions ....................................................................................... 1-4
Safety Information .................................................................... 1-5
Definitions .......................................................................................... 1-5
Messages ........................................................................................... 1-5
Responsibility of the Manufacturer .................................................... 1-6
General .............................................................................................. 1-6
Equipment Symbols ........................................................................... 1-7
Service Information .................................................................. 1-8
Service Requirements ........................................................................ 1-8
Equipment Identification .................................................................... 1-8
2Equipment Overview ...................................... 2-1
General Description .................................................................. 2-3
Front View .......................................................................................... 2-3
Back View .......................................................................................... 2-3
Internal View ...................................................................................... 2-4
Preparation for Use ................................................................... 2-5
Trolley Assembly ............................................................................... 2-5
Connector Identification ..................................................................... 2-6
Paper Installation ............................................................................... 2-7
Controls and Indicators ...................................................................... 2-8

Revision B
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3Maintenance ................................................ 3-1
Introduction ...................................................................... 3-3
Recommended Maintenance .............................................................. 3-3
Preventive Maintenance Inspection Report ........................................ 3-3
Required Tools and Supplies ............................................................. 3-3
Inspection and Cleaning ............................................................. 3-4
Visual Inspection ............................................................................... 3-4
Exterior Cleaning ................................................................................ 3-4
Interior Cleaning ................................................................................ 3-4
General ................................................................................. 3-4
Thermal Printhead ................................................................ 3-5
Battery and Patient Cable Replacement .......................................... 3-6
Battery Replacement .......................................................................... 3-6
Patient Cable Replacement ................................................................ 3-6
Disassembly Guidelines ............................................................. 3-7
Preliminary Steps ............................................................................... 3-7
Power Supply ..................................................................................... 3-7
Removal ............................................................................... 3-7
Reassembly .......................................................................... 3-8
Top Cover .......................................................................................... 3-8
Removal ............................................................................... 3-8
Reassembly .......................................................................... 3-9
Display/Keyboard Assembly ............................................................... 3-9
Removal ............................................................................... 3-9
Reassembly ........................................................................ 3-11
Main PCB ......................................................................................... 3-11
Removal ............................................................................. 3-11
Reassembly ........................................................................ 3-11
Diskette Drive Removal/Replacement .............................................. 3-12
Writer Roller/Carriage Assembly ...................................................... 3-12
Removal ............................................................................. 3-12
Reassembly ........................................................................ 3-12
Domestic Electrical Safety Tests .................................................. 3-13
AC Line Voltage Test ........................................................................ 3-13
120 VAC, 50/60 Hz ............................................................. 3-13
240 VAC, 50/60 Hz ............................................................. 3-13
Leakage Tests .................................................................................. 3-14
Leakage Test Diagrams .................................................................... 3-15
Test #1 ............................................................................................. 3-15
Test #2 ............................................................................................. 3-15
Test #3 ............................................................................................. 3-16

Revision B iii
MAC 5000 resting ECG analysis system
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Test #4 ............................................................................................. 3-16
Ground Continuity ............................................................................ 3-17
Preventive Maintenance ............................................................ 3-18
4Troubleshooting ........................................... 4-1
Assembly Descriptions ............................................................... 4-3
Introduction ....................................................................................... 4-3
Assembly Block Diagram ................................................................... 4-3
Input and Output Connectors ........................................................ 4-4
A Pins (J1) ......................................................................................... 4-4
COM1 (COM3/4) Pins (J3) ................................................................. 4-4
COM2 Pins (J5) ................................................................................. 4-4
ANALOG Pins (J6) ............................................................................. 4-5
EXT. VID. Pins (J7) ............................................................................ 4-5
Internal Cabling ...................................................................... 4-6
CPU PCB Input/Output Signals ...................................................... 4-8
Battery Pack/Monitor (J2) .................................................................. 4-8
LCD Backlight (J4) ............................................................................. 4-8
Keyboard (J8) .................................................................................... 4-9
LCD (J10) ........................................................................................ 4-10
Power Supply/Motor (J11) ............................................................... 4-11
Thermal Printer (J12) ....................................................................... 4-12
Floppy Disk Drive (J13) .................................................................... 4-13
Acquisition Module (J14) ................................................................. 4-13
General Fault Isolation ............................................................. 4-14
Visual Inspection .............................................................................. 4-14
Power-up Self-test ........................................................................... 4-14
Power-up Flow Chart ....................................................................... 4-15
Poor Quality ECGs ............................................................................ 4-15
Diagnostic Tests ..................................................................... 4-16
Introduction ..................................................................................... 4-16
Loading the System Diagnostics ...................................................... 4-16
System Diagnostics Main Menu ....................................................... 4-17
Display Tests .................................................................................... 4-17
Pixel Verification Test ......................................................... 4-17
Grey Scale Test Patterns ..................................................... 4-17
Anti-Aliasing Test Pattern ................................................... 4-18
Speaker Test .................................................................................... 4-18
Keyboard Test .................................................................................. 4-18

Revision B
iv MAC 5000 resting ECG analysis system
2000657-002
Writer Tests ..................................................................................... 4-19
C-Scan Test 1
C-Scan Test 2
C-Scan Test 3 ..................................................................... 4-19
50 mm/s Test Pattern I
25 mm/s Test Pattern I
5 mm/s Test Pattern I ......................................................... 4-19
Roller Test .......................................................................... 4-20
Test Pattern II ..................................................................... 4-20
Test Pattern II Continuous .................................................. 4-20
Continuously Run Out Paper .............................................. 4-20
Battery Tests .................................................................................... 4-20
Battery Status ..................................................................... 4-20
Battery Discharge Test ....................................................... 4-21
Battery Charge Test ............................................................ 4-21
Print Discharge Test Results
Print Charge Test Results ................................................... 4-21
Communication Tests ...................................................................... 4-21
COM Port Loopback Test .................................................... 4-21
Modem Test ....................................................................... 4-22
Acq. Module Tests ........................................................................... 4-22
Analog I/O Tests .............................................................................. 4-22
Analog Output Test ............................................................. 4-22
Analog Input Test ............................................................... 4-22
DCOut Loopback Test ......................................................... 4-22
Floppy Drive Tests ........................................................................... 4-22
5CPU Theory of Operation ................................. 5-1
General Description .................................................................. 5-3
Block Diagram ................................................................................... 5-4
Theory of Operation .................................................................. 5-6
Clocks ................................................................................................ 5-6
CPU .................................................................................................... 5-6
FPGA .................................................................................................. 5-6
Bootstrap Instruction Unpacker ............................................ 5-7
EDO DRAM Controller .......................................................... 5-7
XBus Controller .................................................................... 5-7
LCD Controller VLB Bus Cycle Interface ............................... 5-7
Video Waveform Scrolling .................................................... 5-8
Interrupt Controller ............................................................... 5-9
System Interrupt Generator .................................................. 5-9
Acquisition Module Interface ................................................ 5-9
Thermal Printhead Interface ............................................... 5-10

Revision B v
MAC 5000 resting ECG analysis system
2000657-002
Serial EEPROM Interface .................................................... 5-10
BBus Interface .................................................................... 5-10
UARTS ................................................................................ 5-11
PWM Analog Outputs ......................................................... 5-11
Beep Generator ................................................................... 5-11
DRAM .............................................................................................. 5-12
SmartMedia Card ............................................................................. 5-12
Serial EEPROM ................................................................................ 5-12
VGA LCD/CRT Interface ................................................................... 5-12
Acquisition Module Transceiver/Power Switch ................................ 5-12
Thermal Printhead Power/Pixel Test Logic ....................................... 5-12
SuperIO Peripheral Controller .......................................................... 5-13
Floppy Drive Support .......................................................... 5-13
Four RS-232 Serial Ports (one dual mode RS-232/IrDA) ... 5-13
Clock/Calendar .................................................................... 5-13
External PS-2 Keyboard Port .............................................. 5-13
General Purpose Parallel I/O Lines ..................................... 5-13
The Four Stooges ............................................................................. 5-13
Startup Self Identification ................................................... 5-14
BBus ................................................................................... 5-14
Curly ................................................................................... 5-14
Shemp ................................................................................ 5-14
Larry ................................................................................... 5-15
Moe .................................................................................... 5-15
Untested "Nominal" Operating Time Specs ....................................... 5-19
6Parts Lists and Drawings ................................ 6-1
Ordering Parts ......................................................................... 3
Introduction ........................................................................................... 3
Field Replaceable Units ................................................................ 4
MAC 5000Rev B Generic Assembly .................................................. 5
900769-001F Generic Assembly .................................................. 9
421117-001A Power Supply Assembly ........................................ 18
421114-002A Display Assembly ............................................... 20
900997-001C Trolley ............................................................. 24

Revision B
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7PCB Assemblies ............................................ 7-1
801212-003A CPU PCB Assembly ................................................ 3
SD801212-003A CPU ................................................................. 10
801220-001B Battery Transition PCB .......................................... 26
SD801220-001A Battery Transition ................................................ 27
801222-001A LED PCB ........................................................... 28
SD801222-001A LED ................................................................. 29
2001326-001A Motor Protect PCB ............................................... 31
2001326-001A Motor Protect ..................................................... 32
Appendices Appendix A: Abbreviations ............................... A-1
Standard Abbreviations .............................................................. A-3
Appendix B: Technical Specifications .................. B-1
Technical Specifications ............................................................ B-3

Revision B 1-1
MAC 5000 resting ECG analysis system
2000657-002
1Introduction
Manual Information ..................................................................... 3
Revision History ..................................................................................... 3
Manual Purpose ..................................................................................... 3
Intended Audience ................................................................................. 3
Conventions ........................................................................................... 4
Safety Information ....................................................................... 5
Definitions .............................................................................................. 5
Messages ............................................................................................... 5
Responsibility of the Manufacturer ........................................................ 6
General .................................................................................................. 6
Equipment Symbols ............................................................................... 7
Service Information ..................................................................... 8
Service Requirements ............................................................................ 8
Equipment Identification ........................................................................ 8

Revision B
1-2 MAC 5000 resting ECG analysis system
2000657-002

Revision B 1-3
Introduction: Manual Information
MAC 5000 resting ECG analysis system
2000657-002
Manual Information
Revision History Each page of the document has the document part number and revision
letter at the bottom of the page. The revision letter identifies the
document’s update level.
The revision history of this document is summarized in the table below.
Manual Purpose This manual supplies technical information for service representative
and technical personnel so they can maintain the equipment to the
assembly level. Use it as a guide for maintenance and electrical repairs
considered field repairable. Where necessary the manual identifies
additional sources of relevant information and or technical assistance.
See the operator’s manual for the instructions necessary to operate the
equipment safely in accordance with its function and intended use.
Intended Audience This manual is intended for the person who uses, maintains, or
troubleshoots this equipment.
Table 1-1. Revision History PN 2000657-002
Revision Date Comment
A 27 August 1999 Initial release. Replaces pn 418625-002.
B24 January 2000 Added Printhead Replacement procedure in Chapter 3. Added illustration and updated
Diskette Drive Replacement in Chapter 3. Updated Chapters 6 & 7 with latest drawings.

Revision B1-4
Introduction: Manual Information
MAC 5000 resting ECG analysis system
2000657-002
Conventions
Table 1-2. Styles
Style Definition
Black text Indicates keys on the keyboard, text to be entered,
or hardware items such as buttons or switches on
the equipment.
Italicized text Indicates software terms that identify menu items,
buttons or options in various windows.
Ctrl+Esc Indicates a keyboard operation. A (+) sign between
between the names of two keys indicates, you
press and hold the first key while pressing the
second key once.
For example, “Press Ctrl+Esc” means to press and
hold down the Ctrl key while pressing the Esc key.
<Space> Indicates that you must press the spacebar.
When instructions are given for typing a precise
text string with one or more spaces, the point
where the spacebar must be pressed is indicated
as: <Space>. The purpose of the < > brackets is to
ensure you press the spacebar when required.
Enter Indicates that you must press the “Enter” or
“Return” key on the keyboard. Do not type “enter”.

Revision B 1-5
Introduction: Safety Information
MAC 5000 resting ECG analysis system
2000657-002
Safety Information
Definitions
Messages Additional safety messages may be found throughout this manual that
provide appropriate safe operation information.
Indicates an imminently hazardous
situation which, if not avoided, WILL
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided, COULD
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided may result
in minor or moderate injury.
DANGER
WARNING
CAUTION
DANGER
Do NOT use in the
presence of flammable
anesthetics.
M15287-1B
WARNING
This is Class I
equipment. The mains
plug must be connected
to an appropriate power
supply.
M15287-5C
WARNING
M15287-14C
Operate the unit
from its battery
if the integrity of
the protective
earth conductor is
in doubt.
CAUTION
This equipment contains no user
serviceable parts. Refer servicing to
qualified service personnel.
M15287-38A
CAUTION
U.S. Federal law restricts this device to
sale by or on the order of a physician.
M15287-17B

Revision B1-6
Introduction: Safety Information
MAC 5000 resting ECG analysis system
2000657-002
Responsibility of the
Manufacturer
GE Marquette Medical Systems is responsible for the effects of safety,
reliability, and performance only if:
■Assembly operations, extensions, readjustments, modifications,
or repairs are carried out by persons authorized by Marquette.
■The electrical installation of the relevant room complies with
the requirements of the appropriate regulations.
■The equipment is used in accordance with the instructions for
use.
General The intended use of this device is to record ECG signals from surface
ECG electrodes. This device can analyze, record, and store
electrocardiographic information from adult and pediatric populations.
This data can then be computer analyzed with various algorithms such
as interpretive ECG and signal averaging for presentation to the user.
This device is intended for use under the direct supervision of a licensed
health care practitioner.
Failure on the part of the responsible individual, hospital, or institution
using this equipment to implement a satisfactory maintenance
schedule may cause undue equipment failure and possible health
hazards.
To ensure patient safety, use only parts and accessories manufactured
or recommended by GE Marquette Medical Systems.
Contact GE Marquette Medical Systems for information before
connecting any devices to this equipment that are not recommended in
this manual.
If the installation of this equipment, in the USA, will use 240 V rather
than 120 V, the source must be a center-tapped, 240 V, single-phase
circuit.
Parts and accessories used must meet the requirements of the
applicable IEC 601 series safety standards, and/or the system
configuration must meet the requirements of the IEC 601-1-1 medical
electrical systems standard.
The use of ACCESSORY equipment not complying with the equivalent
safety requirements of this equipment may lead to a reduced level of
safety of the resulting system. Consideration relating to the choice shall
include:
■use of the accessory in the PATIENT VICINITY; and
■evidence that the safety certification of the ACCESSORY has
been performed in accordance to the appropriate IEC 601-1
and/or IEC 601-1-1 harmonized national standard.

Revision B 1-7
Introduction: Safety Information
MAC 5000 resting ECG analysis system
2000657-002
Equipment Symbols The following symbols appear on the equipment.
Type B equipment.
Type BF equipment, external defibrillator protected.
Alternating current. When illuminated, the green LED next to this symbol indicates
AC power is connected.
Equipotential.
Charge the battery. The flashing amber LED next to this symbol indicates you must
connect the system to AC power to re-charge the battery.
DO NOT throw the battery into the garbage.
Recycle the battery.
Consult accompanying documents.
Classified with respect to electric shock, fire, mechanical, and other specified
hazards only in accordance with UL 2601-1, CAN/CSA C22.2 No. 601-1, CAN/CSA
C22.2 601-2-25, EN 60601-2-25, EN 60601-1-1.
In Europe, this symbol means dangerous or high voltage. In the United States, this
symbol represents the caution notice below:
MD1325-097A, -098A, -096A, -108A, -101A, -102A, -103A, -100A, -181A, -099A
~
C
L
A
S
S
I
F
I
E
D
C
MEDICAL EQUIPMENT
UL 2601-1 CAN/CSA 601.1
4P41
US
R
CAUTION
To reduce the risk of electric shock, do
NOT remove cover (or back). Refer
servicing to qualified personnel. M15287-16A

Revision B1-8
Introduction: Service Information
MAC 5000 resting ECG analysis system
2000657-002
Service Information
Service Requirements Refer equipment servicing to GE Marquette Medical System’s
authorized service personnel only. Any unauthorized attempt to repair
equipment under warranty voids that warranty.
It is the user’s responsibility to report the need for service to GE
Marquette Medical Systems or to one of their authorized agents.
Equipment Identification Every GE Marquette Medical Systems device has a unique serial number
for identification. The serial number appears on the product label on
the base of each unit.
Table 1-3. Equipment Identifications
Item Name Description
A name of device MAC 5000 resting ECG analysis system
Bmanufacturer GE Marquette Medical Systems, Inc.
C serial number Unique identifier
Ddevice characteristics One or two letters that further describe the unit, for example: P = prototype not
conforming to marketing specification; R = refurbished equipment; S = special
product documented under Specials part numbers; U = upgraded unit
E division F = Cardiology G = Monitoring J = GW Labs
Fproduct sequence number Manufacturing number (of total units manufactured)
G product code Two-character product descriptor MH = MAC 5000 resting ECG analysis system
Hyear manufactured 9 = 1999, 0 = 2000, 1 = 2001, (and so on)
I month manufactured A = January, B = February, C = March, D = April, E = May, F = June, G = July,
H = August, J = September, K = October, L = November, M = December
XXXXXXXXX
XXXXXXXX XXXXXXX XXXXXXX XXX
XXXXXXXXX XX XXXX XX XXXXX
J6XX0415FXX
MD1113-022C
C
B
A
HGFED
I

Revision B 2-1
MAC 5000 resting ECG analysis system
2000657-002
2Equipment Overview
General Description ..................................................................... 3
Front View .............................................................................................. 3
Back View .............................................................................................. 3
Internal View .......................................................................................... 4
Preparation for Use ...................................................................... 5
Trolley Assembly ................................................................................... 5
Connector Identification ......................................................................... 6
Paper Installation ................................................................................... 7
Controls and Indicators .......................................................................... 8

Revision B
2-2 MAC 5000 resting ECG analysis system
2000657-002