LG -A290 Service Manual page 78

START
Is the connection of
CN301 with LCD connector ok ?
Yes
Check the Voltage Level of
TP1 is about Battery voltage ?
(SWIF signal is high Level)
Yes
Check the Waveform of
EMI filter ?
Yes
Does LCD work
properly ?
Yes
LCD working
LGE Internal Use Only
well !
No
No
No
FL300(TP,TP3,TP4), FL301, FL30
No
- 78 - Copyright © 01 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
Reassemble LCD connector
Resoldering or Replace U03
Resoldering EMI filter.
Replace LCD module
Only for training and service purposes