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 main 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.
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:
T
Other companies’ devices
T
Printer, mouse, and other external devices
T
Battery pack
T
Hard disk drive
T
DIMM
T
CD-ROM/Floppy diskette drive Module
T
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:
T
Main Board
T
LCD assembly
TECHNICAL SERVICE MANUAL
Prestigio Signore 153
89
Summary of Contents for Signore 153
Page 1: ...PRESTIGIO SIGNORE 153 TECHNICAL SERVICE MANUAL ...
Page 10: ...System Block Diagram TECHNICAL SERVICE MANUAL Prestigio Signore 153 3 ...
Page 57: ...TECHNICAL SERVICE MANUAL Prestigio Signore 153 50 ...
Page 97: ...TECHNICAL SERVICE MANUAL Prestigio Signore 153 90 ...
Page 101: ...TECHNICAL SERVICE MANUAL Prestigio Signore 153 94 ...
Page 103: ...Exploded Diagram TECHNICAL SERVICE MANUAL Prestigio Signore 153 96 ...
Page 111: ...TECHNICAL SERVICE MANUAL Prestigio Signore 153 104 ...
Page 117: ...TECHNICAL SERVICE MANUAL Prestigio Signore 153 110 ...
Page 120: ...www prestigio com ...