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LCD-related symptoms
Note
Before removing or disassembling LCD, power off the computer, unplug all power cords from electrical
outlets, remove the battery pack also.
Symptom / Error FRU or action, in sequence
LCD screen becomes dark suddenly. Check out Battery Miser.
Nothing displayed on LCD screen. 1. Check out Battery Miser.
2. Choose Never in the Turn off Monitor item on
Power Options Properties.
3. Check the power save mode switch if it is pressed
by something.
4. Check the System is in standby or hibernation
mode.
LCD backlight not working.
LCD too dark.
LCD brightness cannot be adjusted.
1. Reconnect inverter to the board connector.
2. Replace inverter.
3. LCD Assembly.
4. System board.
LCD color cannot be adjusted.
LCD screen abnormal.
Characters missing pixels.
LCD screen unreadable.
Wrong color displayed.
1. Reset all LCD connectors.
2. Replace LCD cable.
3. LCD Assembly.
4. System board.
Horizontal or vertical lines displayed
on LCD
LCD Assembly.
Power-on indicator on, and a blank\LCD
during POST.
LCD Assembly.
System board.
Ch4. Symptom-to-part index
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