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Chapter 4
Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a
hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement
should be considered only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1.
Run the advanced diagnostic test for the system board in loop mode at least 10 times.
2.
If no error is detected, do not replace any FRU.
3.
If any error is detected, replace the FRU. Rerun the test to verify that there are no more errors.
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.
Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU).
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 On
Issue” on page 142.):
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
•
Battery pack
•
Hard disk drive
•
DIMM
•
CD-ROM/Diskette drive Module
•
PC Cards
4.
Power-on the computer.
5.
Determine if the problem has changed.
6.
If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
7.
If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU:
•
System board
•
LCD assembly
Summary of Contents for Aspire 5230
Page 6: ...VI ...
Page 14: ...4 Chapter 1 System Block Diagram ...
Page 64: ...52 Chapter 3 6 Remove the HDD cover as shown 7 Remove the WLAN cover as shown ...
Page 85: ...Chapter 3 73 6 Turn the upper cover over The upper cover appears as follows ...
Page 106: ...94 Chapter 3 7 Lift the Thermal Module clear of the Mainboard ...
Page 112: ...100 Chapter 3 6 Disconnect the left and right Inverter board cables as shown ...
Page 126: ...114 Chapter 3 3 Replace the RJ 11 cable in its housing ...
Page 137: ...Chapter 3 125 2 Replace the bracket as shown 3 Replace the single securing screw ...
Page 140: ...128 Chapter 3 2 Connect the seven cables on the mainboard as shown B C D E F G A ...
Page 152: ...140 Chapter 3 ...
Page 193: ...Chapter 6 181 ...
Page 200: ...188 Appendix B ...
Page 202: ...190 Appendix C ...
Page 205: ...193 Windows 2000 Environment Test 184 Wireless Function Failure 154 WLAN Board 54 ...
Page 206: ...194 ...