Aspire AX1920 Service Guide
61
Undetermined Problems
Follow the procedures below to isolate the failing FRU. Do not isolate non-defective FRU.
1.
Power off 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
•
Hard disk drive
•
DIMM
•
CD/DVD-ROM drive
•
Expansion boards
4.
Power on the computer.
5.
Determine if the problem has been resolved.
6.
If the problem does not recur, reconnect the removed devices one at a time until you find the failed FRU.
If the problem persists, replace the mainboard, and then LCD assembly (one at a time). Do not replace a non-
defective FRU.
NOTE
• Verify that all attached devices are supported by the computer.
• Verify that the power supply being used at the time of the failure is operating correctly. (See
“Power System Check” on page 45)
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