Acer ENTJ76, ENTJ77 Symptom-to-FRU error messages, 129, Power, Symptom / Error Action in Sequence

Models: ENTJ78 ENTJ77 ENTJ76 ENTJ75

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Symptom-to-FRU error messages

LCD

Symptom / Error

Action in Sequence

 

 

 

 

n

The LCD backlight doesn't work.

n

Run “Load Setup Defaults” using the BIOS Setup Utility, then reboot

n

The LCD is too dark.

 

the notebook.

The LCD brightness cannot be adjusted.

 

Reconnect the LCD connectors.

n

n

 

 

n The LCD contrast cannot be adjusted.

n Test or replace the keyboard (if contrast and brightness function key

 

doesn't work).

n

Check the LCD inverter ID.

n

Test or replace the LCD cable.

n

Test or replace the LCD inverter.

Test or replace the LCD.

n

Test or replace the system board.

n

n

n

n

n

The LCD screen is unreadable. Missing pels in characters. The screen appears abnormal. The wrong color is displayed.

n

n

n

n

n

n

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

n

Check the LCD inverter ID.

lines.

Test or replace the LCD cable.

n

 

n

Test or replace the LCD inverter.

 

Test or replace the LCD.

 

n

 

Test or replace the system board.

 

n

 

 

 

Power

Symptom / Error

Action in Sequence

 

 

The notebook shuts down during operation.

n Test the power source (battery pack and power adapter). See “Testing

 

the power system” on page 118.

n

Test or replace the battery pack.

n

Test or replace the power adapter.

Test or replace the system board.

n

 

The notebook doesn’t turn on.

n

n n n

Test the power source (battery pack and power adapter). See “Testing the power system” on page 118.

Test or replace the battery pack. Test or replace the power adapter. Test or replace the system board.

The notebook doesn’t turn off.n Test the power source (battery pack and power adapter). See “Testing the power system” on page 118.

n

Press and hold the power button for more than four seconds.

n

Test or replace the system board.

 

The battery can’t be charged.

n

n

n

Test the battery pack. See “Check the battery pack” on page 119. Test or replace the battery pack.

Test or replace the system board.

129

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Acer ENTJ76, ENTJ77, ENTJ75, ENTJ78 manual Symptom-to-FRU error messages, 129, Power, Symptom / Error Action in Sequence