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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.7 Main LCD Trouble
LCD control signals are generated by Marika
START
Press END Key
to turn on the power
Is the circuit powered?
Disconnect and Reconnect the 70pin
(Main) or 40 pin(LCD PCB)
LCD Display OK?
Follow the Power On Trouble
Shooting
Change LCD FPCB or Key PCB
YES
NO
YES
YES
NO
1
NO
Disconnect and Reconnect the LCD FPCB
40pin and 40pin LCD connector (sub PCB)
And 40pin LCD connector (sub PCB)
LCD Display OK?
The LCD Works
Follow the Power On Trouble
Shooting
Change LCD Module
LCD Display OK?
Change the Main Board
NO
YES
2
Содержание KU580
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Страница 208: ...Note ...
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