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Acer 330 User Manual

Page 93

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Chapter 4

93

No beep, power-on
indicator turns on and LCD
is blank. But you can see
POST on an external CRT.

Reconnect the LCD connectors.

LCD inverter ID

LCD cable

LCD inverter

LCD

System board

No beep, power-on
indicator turns on and a
blinking cursor shown on
LCD during POST.

Ensure every connector is connected tightly and
correctly.

System board

No beep during POST but
system runs correctly.

Speaker

System board

LCD-Related Symptoms

Symptom / Error

Action in Sequence

LCD backlight doesn't work

LCD is too dark

LCD brightness cannot be
adjusted

LCD contrast cannot be
adjusted

Enter BIOS Utility to execute “Load Setup Default
Settings”, then reboot system.

Reconnect the LCD connectors.

Keyboard (if contrast and brightness function key
doesn't work).

LCD inverter ID

LCD cable

LCD inverter

LCD

System board

Unreadable LCD screen

Missing pels in characters

Abnormal screen

Wrong color displayed

Reconnect the LCD connector

LCD inverter ID

LCD cable

LCD inverter

LCD

System board

LCD has extra horizontal or
vertical lines displayed.

LCD inverter ID

LCD inverter

LCD cable

LCD

System board

No-Beep Symptoms

Symptom / Error

Action in Sequence