LG 32LG40 Training Manual page 26

CIRCUIT DeSCRIPTIONS
MAIN lvDS ChECk
To confirm that the Main board is outputting Picture Content signals, check P902 (LVDS)
3
for output. Check pins 1 1-20. This signals vary, but looking for signals like the ones shown
below on any of these pins will confirm the output of video content. This signal is using
a standard SMTE Color Bar output from a generator as the input source. Remember
2
there are actually 10 pins with LVDS signals. This only represents two waveforms as an
example.
L
G
P902
Location
4
0
MAIN
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PWB
Pin 11
Pin 16