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LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
VGA camera control signals are generated by MSM7200A.
VGA_AVDD_2.8V,
VGA_DVDD_1.8V
VGA_IOVDD_2.8V
Camera is OK?
Camera is OK
Change the camera
NO
NO
Yes
Change the Sub board
End
Yes
End
NO
START
4. 12. VGA Camera trouble
MSM7200A
output signal check
(VGA_RESET_N)
YES
NO
Check master
clock and pixel clock
Check
the EMI/ESD filter
(FL201, FL202, FL203)
(FL201, FL202, FL203)
No
Change the Filter (FL201, FL202, FL203)
NO
YES
YES
YES