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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
Page 134 Page 136

ENTJ78, ENTJ77, ENTJ76, ENTJ75 specifications

The Acer ENTJ series, comprising models ENTJ75, ENTJ76, ENTJ77, and ENTJ78, represents a significant leap in technology and performance within the Acer family of products. These models are designed to cater to a range of users, from professionals to gamers, featuring advanced specifications, innovative technologies, and a commitment to enhancing user experience.

Starting with the ENTJ75, this model showcases a sleek design coupled with powerful processing capabilities. Equipped with the latest Intel or AMD processors, the ENTJ75 ensures seamless multitasking and accelerated performance. The incorporation of a high-refresh-rate display enhances visual fluidity, making it ideal for both work and entertainment purposes. With options for high-resolution displays, users can expect stunning visuals that bring content to life.

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In summary, the Acer ENTJ75, ENTJ76, ENTJ77, and ENTJ78 blend performance, technology, and user experience into a cohesive product lineup that caters to a diverse audience. Whether for professional applications, gaming, or multimedia consumption, these models are designed to meet the demands of today's tech-savvy users.
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