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Chapter 4
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.
NOTE:
Verify that all attached devices are supported by the computer.
NOTE:
Verify that the power supply being used at the time of the failure is operating correctly. (See “Power
System Check” on page 54.)
Follow 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
Adapter cards
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.
7.
If the problem persists, replace the FRU one at a time. Do not replace a non-defective FRU.
Summary of Contents for Aspire X3950
Page 1: ...Acer Aspire X3950 X5950 Service Guide PRINTED IN TAIWAN ...
Page 16: ...8 Chapter 1 ...
Page 39: ...Chapter 3 31 3 Disconnect the LED cable from the mainboard then remove the bezel X3950 ...
Page 46: ...38 Chapter 3 5 Slide the optical drive out of the bracket ...
Page 58: ...50 Chapter 3 12 Lift the board off the housing ...
Page 60: ...52 Chapter 3 ...
Page 83: ...Chapter 5 75 System Block Diagram System Block Diagram and Board Layout Chapter 5 ...
Page 86: ...78 Chapter 5 ...
Page 100: ...92 Chapter 6 SPEAKER SPEAKER USB NEOSONICA NEW SILVER COLOR AC MT 113 SP 10600 035 ...
Page 108: ...Appendix A 100 ...