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Undetermined problems
If the diagnostic test may not identify which adapter or device failed, which installed
devices are incorrect, whether a short circuit is suspected, or whether the system
is inoperative. Use these procedures to isolate the failing FRU (do not isolate a
non-defective FRU).
To isolate a failing FRU:
1
Turn off the notebook.
2
Visually check FRU parts for damage. If you identify any damage, 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(s)
•
SO-DIMM
•
Optical drive
4
Turn on the notebook.
5
Determine if the problem has changed.
•
If the problem does not recur, reconnect the removed devices one at a
time until you find the failing FRU.
•
If the problem does recur, replace the following FRUs one at a time:
•
System board
•
LCD assembly
Important
Verify that all attached devices are supported by the notebook.
Important
Verify that the power supply being used at the time of the failure is operating
correctly. (
See “Testing the power system” on page 118.
)
Important
Do not replace a non-defective FRU.
Summary of Contents for NV-53
Page 1: ... NV53 SERVICEGUIDE ...
Page 6: ...Contents iv ...
Page 12: ...CHAPTER 1 System specifications 6 System block diagram ...
Page 48: ...CHAPTER 2 System utilities 42 ...
Page 140: ...CHAPTER 4 Troubleshooting 134 ...
Page 141: ...CHAPTER5 135 Connector locations System board layout ...
Page 144: ...CHAPTER 5 Connector locations 138 ...
Page 145: ...CHAPTER6 139 FRU Field Replaceable Unit list Introduction Exploded diagram FRU list ...
Page 161: ...APPENDIXB 155 Online support information ...
Page 167: ......
Page 168: ...MAN NV5x SVC GDE R1 04 09 ...