Revision E
MAC
5500 resting ECG analysis system
4-7
2020299-020
Troubleshooting: General Fault Isolation
Visual Inspection
A thorough visual inspection of the equipment can save time. Small things—
disconnected cables, foreign debris on circuit boards, missing hardware, loose
components—can frequently cause symptoms and equipment failures that may
appear to be unrelated and difficult to track.
NOTE
Take the time to make all the recommended visual checks before starting any
detailed troubleshooting procedures.
Table 1. Visual Inspection List
Area
Look for the following problems
I/O Connectors and Cables
Fraying or other damage
Bent prongs or pins
Cracked housing
Loose screws in plugs
Fuses
Type and rating. Replace as necessary.
Interface Cables
Excessive tension or wear
Loose connection
Strain reliefs out of place
Circuit Boards
Moisture, dust, or debris (top and bottom)
Loose or missing components
Burn damage or smell of over-heated components
Socketed components not firmly seated
PCB not seated properly in edge connectors
Solder problems: cracks, splashes on board, incomplete feedthrough, prior modifications or repairs
Ground Wires/Wiring
Loose wires or ground strap connections
Faulty wiring
Wires pinched or in vulnerable position
Mounting Hardware
Loose or missing screws or other hardware, especially fasteners used as connections to ground
planes on PCBs
Power Source
Faulty wiring, especially AC outlet
Circuit not dedicated to system
(Power source problems can cause static discharge, resetting problems, and noise.)
Содержание MAC 5500
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Страница 18: ...1 10 MAC 5500 resting ECG analysis system Revision E 2020299 020 Introduction Service Information ...
Страница 19: ...Revision E MAC 5500 resting ECG analysis system 2 1 2020299 020 Equipment Overview 2 Equipment Overview ...
Страница 20: ...2 2 MAC 5500 resting ECG analysis system Revision E 2020299 020 Equipment Overview For your notes ...
Страница 54: ...2 36 MAC 5500 resting ECG analysis system Revision E 2020299 020 Equipment Overview Theory of Operation ...
Страница 55: ...Revision E MAC 5500 resting ECG analysis system 3 1 2020299 020 Installation 3 Installation ...
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Страница 73: ...Revision E MAC 5500 resting ECG analysis system 4 1 2020299 020 Troubleshooting 4 Troubleshooting ...
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Страница 105: ...Revision E MAC 5500 resting ECG analysis system 5 1 2020299 020 Maintenance 5 Maintenance ...
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Страница 137: ...Revision E MAC 5500 resting ECG analysis system 6 1 2020299 020 Parts List 6 Parts List ...
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Страница 146: ...6 10 MAC 5500 resting ECG analysis system Revision E 2020299 020 Parts List Field Replaceable Units ...
Страница 147: ...Revision E MAC 5500 resting ECG analysis system A 1 2020299 020 Appendix A Abbreviations A Appendix A Abbreviations ...
Страница 148: ...A 2 MAC 5500 resting ECG analysis system Revision E 2020299 020 Appendix A Abbreviations For your notes ...
Страница 160: ...B 2 MAC 5500 resting ECG analysis system Revision E 2020299 020 Appendix B Technical Specifications For your notes ...
Страница 168: ...C 2 MAC 5500 resting ECG analysis system Revision E 2020299 020 Appendix C Electromagnetic Compatibility For your notes ...
Страница 175: ...Revision E MAC 5500 resting ECG analysis system Index 1 2020299 020 Index ...
Страница 176: ...Index 2 MAC 5500 resting ECG analysis system Revision E 2020299 020 ...
Страница 178: ...Index Index 4 MAC 5500 resting ECG analysis system Revision E 2020299 020 ...
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