Symptom-to-FRU Error Messages
LCD-Related Symptoms
Symptom / Error
LCD backlight doesn't work
•
LCD is too dark
•
LCD brightness cannot be adjusted
•
LCD contrast cannot be adjusted
•
Unreadable LCD screen
•
Missing pels in characters
•
Abnormal screen
•
Wrong color displayed
•
LCD has extra horizontal or vertical lines
displayed.
Power-Related Symptoms
Symptom / Error
System shuts down during operation
System doesn't power-on.
System doesn't turn off.
The battery can't be charged
Memory-Related Symptoms
Symptom / Error
Memory count (size) appears different from
actual size.
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66
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Action in Sequence
Run "Load Setup Defaults" using the BIOS Setup Utility,
•
then reboot the system.
Reconnect the LCD connector.
•
Test or replace the keyboard (if contrast and brightness
•
function key doesn't work).
Test or replace the LCD cable.
•
Test or replace the LCD.
•
Test or replace the mainboard.
•
Reconnect the LCD connector.
•
Test or replace the LCD cable.
•
Test or replace the LCD.
•
Test or replace the mainboard.
•
Test or replace the LCD cable.
•
Test or replace the LCD.
•
Test or replace the mainboard.
•
Action in Sequence
Test the power source (battery pack and power adapter).
•
See "Power System Check" on page 57.
Test or replace the battery pack.
•
Test or replace the power adapter.
•
Test or replace the mainboard.
•
Test the power source (battery pack and power adapter).
•
See "Power System Check" on page 57.
Test or replace the battery pack.
•
Test or replace the power adapter.
•
Test or replace the mainboard.
•
Test the power source (battery pack and power adapter).
•
See "Power System Check" on page 57.
Press and hold the power button for more than 4 secs.
•
Test or replace the mainboard.
•
Test the battery pack. See "Check the Battery Pack" on
•
page 58.
Test or replace the battery pack.
•
Test or replace the mainboard.
•
Action in Sequence
Run "Load Setup Defaults" using the BIOS Setup Utility,
•
then reboot the system.
Test or replace the SO-DIMM.
•
Test or replace the mainboard.
•
Chapter 4