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Symptom-to-FRU error messages
LCD
Symptom / Error | Action in Sequence |
|
|
• The LCD backlight doesn't work. | • Run “Load Setup Defaults” using the BIOS Setup Utility, then |
• The LCD is too dark. | reboot the notebook. |
• The LCD brightness cannot be | • Reconnect the LCD connectors. |
adjusted. | • Test or replace the keyboard (if contrast and brightness |
• The LCD contrast cannot be adjusted. | 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.
Power
Symptom / Error | Action in Sequence |
|
|
The notebook shuts down during | • Test the power source (battery pack and power adapter). See |
operation. | “Testing the power system” on page 140. |
| • 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 140.
•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 140.
•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 141.
•Test or replace the battery pack.
•Test or replace the system board.
