LG U990 Service Manual page 138

VGA START
Check the camera & 30-pin conn.
And reconnect these connectors
(Main & FPCB connector)
Camera is OK?
NO
MSM6280 output signal check
(VGA_CAM_RESET_N, V
VGA_CAM_PWDN)
Check VGA_VDD_2.7,
VGA_VDD_1.8V
NO
Check master clock
(VGA_CAM_MCLK : R717)
Check the EMI/ESD filter
Yes
Check the VGA_CAM_PCLK
Camera is OK
Change the Main board
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Only for training and service purposes
Yes
NO
Yes
NO
Yes
NO
Yes
NO
Yes
NO
(R718)
Yes
NO
4. TROUBLE SHOOTING
End
Change the LDO (U600)
Change the Analog Switch (U604, U607)
Change the Filter (FL700, FL701)
Change the slider FPCB
Yes
End
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No
Change the camera
LGE Internal Use Only