Lenovo NetVista Hardware Maintenance Manual (HMM) for Aptiva and NetVista 2255 - Page 82

Do You Have An Ohm Reading When The Switch Is Pressed And An Open Reading When

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3.5-In. Diskette Drive End of Power Cable 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 84. If the fan stops running when a drive connector is plugged back in, go to "Start" on page 55. 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. 82

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82
3.5-In. Diskette Drive End of Power Cable
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 84. If the
fan stops running when a drive connector is plugged back in, go to "Start" on page 55.
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.