If the printer self-test runs correctly, install a wrap plug in the parallel port and run the diagnostic tests to determine which FRU failed.

If the diagnostic tests (with the wrap plug installed) do not detect a failure, replace the printer cable. If that does not correct the problem, replace the system board or adapter connected to the printer cable.

Power supply

If the power-on indicator is not on, the power supply fan is not running, or the computer will not power-off, use the following procedures.

Check/Verify

FRU/Action

 

 

Check the following for proper installation.

Reseat

v

Power Cord

 

v

On/Off Switch connector

 

v

On/Off Switch Power Supply connector

 

v

System Board Power Supply connectors

 

v

Microprocessor(s) connection

 

Check the power-on switch for continuity.

Power Cord

 

 

Check the power-on switch for continuity.

Power-on Switch

 

 

 

If the above are correct, check the following voltages.

30Hardware Maintenance Manual: IBM NetVista Computer Types 6058, 6059, 6269, 6568, 6569, 6578, 6579, 6648,

6649

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IBM 6649, 6578, 6579, 6269, 6059, 6058, 6569, 6568 Power supply, Check/Verify FRU/Action, Reseat, Power Cord, Power-on Switch
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