LG -A120 Service Manual page 60

4.8.3 Checking Flow
Backlight (U400) is OK?
And check TP1=2.8V?
Check Control Signal and
power including soldering
status, as the waveform?
Check soldering
status of J400
Change PCB
Start
YES
OK
OK
NO
Change PCB
NG
Replace Component or LCM
NG
Replace J400
TP1
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