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