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Symptom-to-FRU error messages
LCD
Power
Symptom / Error Action in Sequence
■
The LCD backlight doesn't work.
■
The LCD is too dark.
■
The LCD brightness cannot be adjusted.
■
The LCD contrast cannot be adjusted.
■
Run “Load Setup Defaults” using the BIOS Setup Utility, then reboot
the notebook.
■
Reconnect the LCD connectors.
■
Test or replace the keyboard (if contrast and brightness function key
doesn't work).
■
Check the LCD inverter ID.
■
Test or replace the LCD cable.
■
Test or replace the LCD inverter.
■
Test or replace the LCD.
■
Test or replace the system board.
■
The LCD screen is unreadable.
■
Missing pels in characters.
■
The screen appears abnormal.
■
The wrong color is displayed.
■
Reconnect the LCD connector.
■
Check the LCD inverter ID.
■
Test or replace the LCD cable.
■
Test or replace the LCD inverter.
■
Test or replace the LCD.
■
Test or replace the system board.
The LCD is displaying extra horizontal or vertical
lines.
■
Check the LCD inverter ID.
■
Test or replace the LCD cable.
■
Test or replace the LCD inverter.
■
Test or replace the LCD.
■
Test or replace the system board.
Symptom / Error Action in Sequence
The notebook shuts down during operation.
■
Test the power source (battery pack and power adapter). See “Testing
the power system” on page 100.
■
Test or replace the battery pack.
■
Test or replace the power adapter.
■
Test or replace the system board.
The notebook doesn’t turn on.
■
Test the power source (battery pack and power adapter). See “Testing
the power system” on page 100.
■
Test or replace the battery pack.
■
Test or replace the power adapter.
■
Test or replace the system board.
The notebook doesn’t turn off.
■
Test the power source (battery pack and power adapter). See “Testing
the power system” on page 100.
■
Press and hold the power button for more than four seconds.
■
Test or replace the system board.
The battery can’t be charged.
■
Test the battery pack. See “Check the battery pack” on page 101.
■
Test or replace the battery pack.
■
Test or replace the system board.