LG 42LV375H - Rgb Input; Component Input

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LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
5. AV1(SCART) Video Trouble Shooting guide
- CVBS input
- RGB input
Is Video input normal?
JK4100 Pin 20
Check the input source & AV
cable.
N
Check the LVDS cable. Connect the cable.
N
Y
Replace IC100.
Y
Is Video input normal?
JK4100 Pin 15, 11, 7.
Check the input source & AV
cable.
N
Check the LVDS cable. Connect the cable.
N
Y
Replace IC100.
Y
6. Component/RGB Video Trouble Shooting guide
- Component input
- RGB input
Is Video input normal?
JK900 Green/Blue/Red
Check the input source &
component cable.
N
Check the input of BCM3556
(IC100) C130, C131, C132
Check the register & Bead
L904/L903/L902 etc...
N
Y
Replace IC100.
Y
Is Video input normal?
JK905 Pin 1, 2, 3
Check the input source & RGB
cable.
N
Check EDID Data.
Re-download EDID data or
Replace IC901.
N
Y
Check the input of BCM3556
C127, C128, C129
Check the register & Bead
L905/L906/L907 etc...
N
Y
Replace IC100.
Y