Acer 270 Manual Do Utilizador
80
Chapter 4
Index of Symptom-to-FRU Error Message
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 Defaults” on Exit screen,
then reboot system.
then reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key doesn't work).
LCD cable
LCD inverter
LCD
Main board
Unreadable LCD screen
Missing pels in characters
Abnormal screen
Wrong color displayed
Reconnect the LCD connector
LCD cable
LCD inverter
LCD
Main board
LCD has extra horizontal or vertical lines
displayed.
displayed.
LCD inverter
LCD cable
LCD
Main board
Indicator-Related Symptoms
Symptom / Error
Action in Sequence
Indicator incorrectly remains off or on, but system
runs correctly
runs correctly
Reconnect the inverter board
Inverter board
Main board
Power-Related Symptoms
Symptom / Error
Action in Sequence
Power shuts down during operation
Power source (battery pack and power adapter). See “Power
System Check” on page 73.
System Check” on page 73.
Battery pack
Power adapter
Hard drive & battery connection board
Main board
The system doesn’t power-on.
Power source (battery pack and power adapter). See “Power
System Check” on page 73“.
System Check” on page 73“.
Battery pack
Power adapter
Hard drive & battery connection board
Main board
The system doesn’t power-off.
Power source (battery pack and power adapter). See “Power
System Check” on page 73.
System Check” on page 73.
Hold and press the power switch for more than 4 seconds.
Main board
Battery can’t be charged
Battery pack
Main board