IBM 6151 Maintenance And Service Manual page 380

Step 10
1. Set the system unit power switch to Off.
2. Disconnect all of the internal cables to the adapters.
3. Be sure the power has been off 30 seconds; then set the power
switch on the system unit to On.
4. Wait 15 seconds; then answer the following question.
IS THE POWER-ON INDICATOR ON?
YES One of the internal devices or cables is defective. Do the
following:
1. Set the power switch on the system unit to Off.
2. Connect one of the internal cables.
3. Set the power switch on the system unit to On.
4. If the Power-On indicator is on, repeat these Steps. If
the Power-On indicator is off, exchange the last device
or cable connected. Go to "Step 14" on page 3-8800-14.
NO
Continue on the next page.
3-8800-10
Service Manual