Acer Extensa 500 Instruction De Maintenance

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Troubleshooting 
Unreadable LCD screen 
Missing pels in characters
Abnormal screen 
Wrong color displayed
Reconnect the LCD connector
LCD inverter ID
LCD FPC Cable
LCD inverter
LCD
System board
LCD has extra horizontal or 
vertical lines displayed.
LCD inverter ID
LCD inverter
LCD FPC Cable
LCD
System board
Indicator-Related Symptoms
Symptom / Error
Action in Sequence
Indicator incorrectly remains 
off or on, but system runs 
correctly
Reconnect the LED board
LED board
System 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 75
Battery pack
Power adapter
DC-DC/charger board
Audio-I/O & battery connection board
System board
The system doesn’t power-
on.
Power source (battery pack and power adapter). 
See “Power System Check” on page 75
Battery pack
Power adapter
DC/DC & Charge boar
Audio-I/O & battery connection board
System board
LCD-Related Symptoms
Symptom / Error
Action in Sequence