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LGE Internal Use Only
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
CHECKING FLOW
Is the connection of
U304 with Camera ok ?
Check the each voltage Level of
TP1(2.8V), TP2(1.8V),TP3(1.8V) is right ?
(SWIF signal is high Level)
Does Camera work
properly ?
Check the Waveform of
TP4,TP5,TP6(26MHz) ?
Check the Waveform of
EMI filter ?
Check the Waveform of
Data pins on U304 ?
START
Camera working well !
NO
Reassemble camera socket
with camera.
NO
YES
YES
Resoldering or Replace U301
NO
Replace U100 or Change the board
YES
YES
YES
YES
NO
Replace U100 or Change the board
NO
Resoldering EMI filter.
(FL300, FL301,FL302)
NO
Replace Camera Module.