LG -V909DW Service Manual page 100

4.13.3 Front 2M Camera troubleshooting
2M front camera control signals are generated by T(U101), and Power is supplied by LP8720(U503)
LGE Internal Use Only
Start
Check the camera connector and
reconnect the camera
Camera is OK?
Check IOVDD (TP1) DVDD(TP2),
MCLK(TP3), PCLK(TP4)
Signal OK?
Change 2m
FPCB
Camera works
well?
Change 2m
FPCB
THE END
END
Change AP board
END
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4. TROUBLE SHOOTING
Only for training and service purposes