IBM Aptiva 2156 Hardware Maintenance Service page 95

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006 - ARE THE VOLTAGES CORRECT AND DOES THE FAN RUN?
(YES, READ AHEAD. NO, GO TO STEP 009)
The power supply is working normally.
If you suspect the on/off switch cable assembly, see Step 003.
If the fan continues to run when all connectors are plugged back in, go to
"Undetermined Problems" on page 2-40. If the fan stops running when a drive
connector is plugged back in, go to "Start" on page 2-3.
007 - DO YOU HAVE AN OHM READING WHEN THE SWITCH IS
PRESSED AND AN OPEN READING WHEN THE SWITCH IS
RELEASED? (YES, READ AHEAD. NO, GO TO STEP 008)
Replace the on/off switch cable assembly.
008 -
Replace the system board.
End.
009 -
Replace the power supply.
End.
2-37

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