88 Troubleshooting
Unreadable LCD screen
Missing pels in characters
Abnormal screen
Wrong color displayed
Reconnect the LCD connecto rs.
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 ).
Power System Check.
Battery pack
Power adapter
DC-DC/charger board
Audio-I/O & battery conn ection board
System board
The system doesn’t power-
on. Power source (battery pack and power adapter).
Power System Check.
Battery pack
Power adapter
DC/DC & Charge boar
Audio-I/O & battery conn ection board
System board
LCD-Related Symptoms
Symptom / Error Action in Sequence