LG GT500 - Page 82

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4. TROUBLE SHOOTING
4.6.2 VGA Camera
VGA Camera control signals are generated by DB3200.
START
Press END Key
to turn on the power
Is the circuit powered?
Follow the Power On Trouble Shooting
YES
NO
YES
NO
NO
Pin31(TP3) of CN503) or pin 7 of U 601(TP4)=1.8V?
Pin33(TP1) of CN503) or pin 8 of U 601(TP2) =2.8V?
2
C900(TP6)=1.8V?
C901(TP5) =2.8V?
Reconnect the 34pin B to B connector
CN503 and VGA 34pin Camera Connector
VGA Camera Operation OK?
1
Change U601
Change VGA FPCB
NO
YES
C913 (TP7) =1.5V?
NO
YES
Check the CN 901 soldering status
And resolder the CN 901.
1
VGA Camera works well.
YES