Gateway p-79 Manual De Usuario

152

Symptom-to-FRU error messages

LCD

Power

F4h

1

Output one beep before boot

F5h

Boot to Mini DOS

F6h

Clear Huge Segment

F7h

Boot to Full DOS

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 

■

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 

■

Test or replace the battery pack.

■

Test or replace the power adapter.

■

Test or replace the system board.

Code

Beeps