Diagnostic Tests - GE MAC 5500 Service Manual

Troubleshooting
Area
Circuit boards
Ground wires/wiring
Mounting hardware
Power source

Diagnostic Tests

The system provides the following diagnostic tests to help you verify that the device is
operating properly:
• Display Tests
• Speaker Test
• Keyboard Test
• Writer Tests
• Battery Tests
• Communication Tests
• Acq. Module Tests
• Analog I/O Tests
• Floppy Drive Tests
• Internal Memory Tests
• SD Card Tests
You run the tests from the System Setup menu. To access that menu, you need to
enter the service password. If you do not know the service password, you can create a
temporary master password to gain access.
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Look for the following problems
• Moisture, dust, or debris (above and below)
• Missing components
• Loosely seated components
• Burn damage or overheated smell
• Improperly seated PCB
• Solder problems: cracks, splashes on board, incomplete
feedthrough, prior modifications, repairs
• Loose wires or ground strap connections
• Faulty wiring
• Pinched wires
• Incorrectly placed wires
Loose or missing screws or other hardware, especially fasteners
used as connections to ground planes on PCBs
• Faulty wiring, especially at the AC outlet
• Shared power circuit
NOTE:
Power source problems can cause static discharge, resetting
problems, and noise.
MAC™ 5500/MAC™ 5500 HD
2046275-017G