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MAC 5500
GE MAC 5500 Service Manual
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4-6
MAC
5500 resting ECG analysis system
Re
vision E
2020299-020
T
ro
ubleshooting:
General Fault
Isolation
Poor Quality ECGs
Poor quality ECGs can be cau
sed by factors in the environment
, inadequate patient
preparation, hardware failures related to the acquisition module, leadwires, cables,
or problems in t
he unit.
Use a simulator to obtain
an ECG report.
If the report is good, the problem is
external to the unit.
77
79
Table of Contents
Table of Contents
3
Manual Information
11
Revision History
11
Manual Purpose
11
Intended Audience
11
Warnings, Cautions, and Notes
12
Safety Messages
13
Responsibility of the Manufacturer
13
General
14
Equipment Symbols
15
Service Information
16
Service Requirements
16
Equipment Identification
16
Serial Number Format
17
Label Format
17
General Description
21
Front View
21
Back View
22
Connector Identification
23
MAC 5500 Block Diagram
24
Theory of Operation
25
Overview / Block Diagram
25
Power Supplies
28
+3V-Emi
28
Ref2V5
29
Vana+, Vana
30
Clocks
30
Super I/O and FPGA
30
Cpu Atmel At91Rm9200
30
CPU (Stooges)
31
Rtc
31
Cpu
31
External Bus Interface
31
Boot Loader
32
FPGA Internal Logic
33
Board ID Register
34
Xbus Controller
34
Video Interface
34
Interrupt Controller
39
System Interrupt Timer
40
Acquisition Module Interface
40
Thermal Printhead Interface
41
Serial EEPROM Interface
41
Bbus Interface
42
PWM Analog Outputs
42
Beep Generator
42
PC Card Logic
43
Sdram
43
NAND Flash
43
Secure Digital Card Interface
43
Serial EEPROM
43
Daughter Board Interface
44
VGA LCD/CRT Interface
44
LCD Panel EMI Reduction Components
44
CRT Video DAC / Sync / Buffers
44
Acquisition Module Transceiver / Power Switch
45
Transceiver
45
Acquisition Power Regulator / Switch
45
COMM Port Power Switch / Current Limiter / KISS Power
45
Thermal Printhead Power / Pixel Test Hardware
46
Super I/O Peripheral Controller
46
Serial Ports (One Dual Mode RS-232 / Irda)
46
Clock/Calendar
47
PS2 Keyboard Port
47
The Three Stooges
47
Startup Self Identification
47
Bbus
48
Shemp
48
Larry
48
Moe
50
Preparation for Use
57
General
57
Trolley Height Adjustment
58
Installing the MAC 5500 Resting ECG Analysis System
60
Installing the Optional External Modem Kit
62
Magnetic Card Reader Installation
64
Bar Code Reader Installation
66
Type-S Trolley Assembly
68
MAC 5500 ST Requirements and Configuration
69
Compatible Blood Pressure Units
69
Compatible GE Medical Systems Information Technologies Treadmills
70
Analog Treadmills
70
Bicycle Ergometers
71
Assembly Descriptions
75
Introduction
75
Assembly Block Diagram
75
General Fault Isolation
76
Power-Up Self-Test
76
Power-Up Flow Chart
77
Poor Quality Ecgs
78
Visual Inspection
79
Diagnostic Tests
80
Introduction
80
Loading the System Diagnostics
80
Substitute Master Password
80
System Diagnostics Main Menu
81
Display Tests
81
Pixel Verification Test
81
Grey Scale Test Patterns
81
Speaker Test
82
Keyboard Test
82
Writer Tests
83
Battery Tests
85
Battery Status
85
Battery Discharge Test
85
Battery Charge Test
86
Print Charge/Discharge Test Results
86
Communication Tests
86
COM Port Loopback Test
86
External Modem Test
87
Internal Modem Test
87
Ethernet Module Test
87
Acquisition Module Test
87
Analog I/O Tests
87
Analog Output Test
87
Analog Input Test
88
Dcout Loopback Test
88
Ecgout/Qrstrigger Loopback Test
88
Floppy Drive Tests
88
Internal Memory Tests
88
SD Card Tests
89
Equipment Problems
90
ECG Data Noise
90
Missing ACI-TIPI Report
90
No BP from External Device
90
Treadmill/Ergometer Does Not Move
90
System Errors
91
Frequently Asked Questions
92
Maintenance
92
Save Setups
92
Storing Ecgs
92
Format an SD Card
92
Cleaning
92
Battery Capacity
93
System Setup
93
Location Number
93
Patient Questions
93
Passwords
94
Clinical
94
Report Format
94
Hi-Res and Phi-Res
94
Editing
94
Entering Patient Data
95
Transmission
95
Losing Fields When Transmitting
95
Input and Output Connectors
96
A Pins (J1)
96
COM1 (COM3/4) Pins (J3)
96
COM2 Pins (J5)
97
Analog Pins (J6)
97
EXT. VID. Pins (J7)
98
CPU PCB Input/Output Signals
99
Battery Pack/Monitor, J2
99
LCD Backlight, J4
99
Keyboard, J8
99
Lcd, J10
100
Power Supply/Motor, J11
101
Thermal Printer, J12
102
Floppy Disk Drive, J13
103
Acquisition Module, J14
104
Introduction
107
Recommended Maintenance
107
Required Tools and Supplies
107
Inspection and Cleaning
108
Visual Inspection
108
Exterior Cleaning
108
Interior Cleaning
108
General
108
Thermal Printhead
108
Battery and Patient Cable Replacement
110
Battery Replacement
110
Patient Cable Replacement
110
Disassembly Guidelines
111
Preliminary Steps
111
Trolley Disassembly
111
Type-S Trolley Disassembly
112
Power Supply
112
Removal
112
Reassembly
113
Top Cover
113
Removal
113
Reassembly
114
Display/Keyboard Assembly
115
Removal
115
Display/Keyboard Reassembly
116
Reassembly
116
Main CPU Board
117
Removal of CPU Board
117
Reassembly of CPU Board
117
Software
119
Service Only Setups
120
Restore System Setups
121
Restore Options
121
Disable Options
122
Printhead Replacement
123
Removal
123
Reassembly
123
COMM Board Replacement
123
Setting up LAN Communications
124
Writer Roller/Carriage Assembly
126
Removal
126
Reassembly
126
Trolley Casters
126
Functional Checkout Procedures
129
Tools
130
Visual Inspection
131
Checkout Procedures
131
Operational Checks
131
Diagnostic Tests
132
Electrical Safety Checks
133
Ordering Parts
139
General Information
139
Field Replaceable Units
140
Appendix A -Abbreviations
147
Standard Abbreviations
149
Appendix B - Technical Specifications
159
Technical Specifications
161
Display
161
Computerized Electrocardiograph
161
Writer
162
Keyboard
162
Electrical
162
Vectorcardiography
162
Hi-Res and Phi-Res Signal-Averaged Electrocardiography
163
Physical
163
Environmental
163
Safety
165
Appendix C - Electromagnetic Compatibility
167
Electromagnetic Compatibility (EMC
169
Guidance and Manufacturer's Declaration - Electromagnetic Emissions
169
Guidance and Manufacturer's Declaration - Electromagnetic Immunity
170
Recommended Separation Distances
172
Compliant Cables and Accessories
173
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GE MAC 5500 Specifications
General
Brand
GE
Model
MAC 5500
Category
Medical Equipment
Language
English
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