Samsung LT-P468W Service Manual page 66

5 Troubleshooting
5-2 No Video (CVBS)
The power LED turns green.
Does the signal
G05
appear of BD222?
Yes
Does the signal appear
G06
at Pin 83 of IC305?
04
Yes Yes Yes Yes
Does the signal appear
at Pin17 (H Sink) and
G07
05
Pin23 (V Sink) of IC401?
06
Yes
Does the signal appear
at Pin118 (H Sink) and
G08
07
Pin119 (V Sink) of IC405?
08
Yes
Does the signal appear
at R706 (H Sink) and
G09
09
R707 (V Sink) of IC702?
10
Yes
Does the signal appear
at Pin R758 (V Sink), Pin R757 (H Sink)
G10
11
and Pin R756 (DE) of IC702?
13
Yes
Replace LCD panel.
5-2
No
No
No
No
No
No
12
Check cable.
Check IC305 and related circuit.
Check IC401 and related circuit.
Check IC405 and related circuit.
Check IC501 and related circuit.
Check IC702 and related circuit.
LT-P468W