Main Lcd Trouble - LG GS500 Manual

5. TROUBLE SHOOTING

5.9 Main LCD Trouble

5.9 Main LCD Trouble
Start
Press END Key
To turn on the power ON
Is the circuit powered on ?
Yes
Reconnect FPCB LCD
Work well?
Yes
END
LGE Internal Use Only
No
Follow the Power ON
Trouble shooting
No
2V85 VLCD level at
C302 is 2.885V?
Check control signal
Yes
soldering of CN303,
FL301,304,305
Yes
Reconnect LCD Module
LCD Work well ?
No
Check TP1
Yes
No
And data.
Yes
Check
NO
Yes
No
- 82 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Change C205
Change the main
board
Resolder
Connectors
Change the MAIN
FPCB or LCD
Only for training and service purposes