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LGE Internal Use Only
Copyright © 01 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
START
Is the connection of
CN601 with LCD connector ok ?
Reassemble LCD connector
No
LCD working well !
Does LCD work properly ?
Replace LCD module
No
Yes
Yes
Check the Voltage
Level of MLED1~%(TP1~5)are
about Battery voltage ? LCD BL Ctrl
(TP7)signal is high Level)
Yes
Resoldering or Replace U601
No
Check the Waveform of EMI filter ?
(FL601,FL60,FL603,TP606)
Resoldering EMI filter.
(FL601,FL60,FL603)
No