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Symptoms (Verified) Go to
Other symptoms (such as
LCD indicator problems).
“Symptom-to-FRU Index” on
page 640, and then go to
“Other Symptoms” on
page 652.
Symptoms cannot be
re-created (intermittent
problems).
Use the customer reported
symptoms and go to
“Symptom-to-FRU Index” on
page 640.
Power Supply
If the power-on indicator is not on and the power supply
fan is not turning, check the power cord for continuity and
correct installation.
If the power cord is not the problem, either the power
supply is defective, or another component is defective
causing the power supply to cut off. To verify that the
power supply is operating correctly, do the following:
1. Turn off the computer and disconnect the
SelectaDock III power cord.
2. Remove all internal devices, external devices, and the
computer from the SelectaDock Docking System.
3. Undock the port replicator.
4. Remove the device space bay frame (see “1050
Device Space Bay Frame” on page 661).
5. Remove connectors 1, 2, 3, 4, 5, and 6
from the each device, tray, or card.
6. To power on the power supply, on connector 5,
short-circuit pins 2 and 8, and with a 15-ohm resistor
short-circuit pins 1 and 15. Then check the power
supply voltages on each connector.
If any of the voltages is not correct, replace the power
supply. If replacing the power supply does not correct the
626 IBM Mobile Systems HMM