IBM MICRO TOWER 2169 - Manual (Page 103)

101
006 - ARE THE VOLTAGES CORRECT AND DOES THE
FAN RUN? (YES, READ AHEAD. NO, GO TO STEP
009)
q The power supply is working normally.
q If you suspect the on/off switch cable assembly, see Step
003.
q If the fan continues to run when all connectors are plugged
back in, go to “Undetermined Problems” on page 104. If
the fan stops running when a drive connector is plugged
back in, go to "Start" on page 68.
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)
q Replace the on/off switch cable assembly.
008 -
q Replace the system board.
q End.
009 -
q Replace the power supply.
q End.