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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