Undetermined Problems - Acer Aspire 5951G Service Manual

Undetermined Problems

The diagnostic problems does not identify which adapter or device failed, which installed
devices are incorrect, whether a short circuit is suspected, or whether the system is
inoperative.
Perform the following procedures to isolate the failing FRU (do not isolate non-defective FRU):
NOTE:
NOTE:
Verify that all attached devices are supported by the computer.
NOTE:
NOTE:
Verify that the power supply being used at the time of the failure is operating correctly.
(Refer to
1. Remove power from the computer.
2. Visually check them for damage. If any problems are found, replace the FRU.
3. Remove or disconnect all of the following devices:
 Non-Acer devices
 Printer, mouse, and other external devices
 Battery pack
 Hard disk drive
 DIMM
 CD-ROM/Diskette drive Module
 PC Cards
4. Apply power to the computer.
5. Determine if the problem has changed.
6. If the problem does not recur, connect the removed devices one at a time until failing FRU
is found.
7. If the problem remains, replace the following FRUs one at a time. Do not replace a
non-defective FRU:
 System board
 LCD assembly
4-16
Power On Issues).
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Troubleshooting