IBM 7012 300 Series Installation And Service Manual page 40

Step 18
(from Step 17)
1. Set the power switch on the system unit to Off.
2. Connect one of the cables that was removed to the adapter.
3. Set the power switch on the system unit to On. Wait 10 seconds before answering the
following question.
Did the power-on light come on and stay on?
NO
YES
Step 19
(from Step 18)
1. Set the power switch on the system unit to Off.
2. Disconnect the cable from the attached device.
3. Set the power switch on the system unit to On. Wait 10 seconds before answering the
following question.
Did the power-on light come on and stay on?
NO
YES
Step 20
(from Step 13)
1. Set the power switch on the system unit to Off.
2. Disconnect the key mode/reset switch connector P22 from the system planar.
3. Set the power switch on the system unit to On. Wait 10 seconds before answering the
following question.
Did the power-on light come on and stay on?
NO
YES
2-1520-10
Installation and Service Guide
If the cable is removable from the attached device, go to Step 19.
If the cable cannot be removed from the attached device, exchange or
repair the device. Go to "Map 0410: Repair Checkout" in the Diagnostic
Information For Micro Channel Bus Systems .
Repeat this step until the defective cable is identified or all the cables are
connected. Go to "Map 0410: Repair Checkout" in the Diagnostic
Information For Micro Channel Bus Systems .
Exchange the cable. Go to "Map 0410: Repair Checkout" in the Diagnostic
Information For Micro Channel Bus Systems .
Exchange or repair the device. Go to "Map 0410: Repair Checkout" in the
Diagnostic Information For Micro Channel Bus Systems .
Go to Step 21.
Exchange the key mode/reset switch. Go to "Map 0410: Repair Checkout"
in the Diagnostic Information For Micro Channel Bus Systems .