LG KU580 Service Manual - Page 84

Camera Trouble

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4. TROUBLE SHOOTING 4.6 Camera Trouble Camera control signals are generated by Marika 4.6.1 2M Camera START Press END Key to turn on the power Is the circuit powered? YES 1 Reconnect the 2M 24pin B to B connector YES 2 2M Camera Operation OK? NO Pin4 of U101 or C108(sub)=2.8V? Pin5 of U101 or C109(sub)=1.8V? YES Change 2M Camera NO Follow the Power On Trouble Shooting NO Change U101 NO 2M Camera Works Change the Main Board Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 85 - LGE Internal Use Only

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- 85 -
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.6 Camera Trouble
Camera control signals are generated by Marika
4.6.1 2M Camera
START
Press END Key
to turn on the power
Is the circuit powered?
Reconnect the 2M 24pin
B to B connector
2M Camera Operation OK?
Pin5 of U101 or C109(sub)=1.8V?
Change 2M Camera
Follow the Power On Trouble
Shooting
Change U101
YES
NO
YES
YES
2M Camera Works
NO
Change the Main Board
NO
1
2
NO
Pin4 of U101 or C108(sub)=2.8V?