Samsung LT-P468W Service Manual page 70

5 Troubleshooting
5-4 No Screen (Componet & Analong)
The power LED turns green.
Does the signal appear at
Pin BD201, BD202, BD203, BD843,
16
17 15
G13
BD842 and BD841 of main board
G14
16 15
CN201, CN203?
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.
WAVEFORMS
9
13
5-6
No
17
No
No
12
10
15
Check cable.
Check IC501 and related circuit.
Check IC702 and related circuit.
11
16
12
17
LT-P468W