Rgb Video Trouble Shooting - LG M227WDP Service Manual

Check input signa format
Is it supported?
Y
Check RGB Cable connector
for damage
Y
Check JK703
Y
Check signal, Hsync, Vsync
(R729, R730)
Y
Check signal RGB
(R158, R160, R162)
C115, C117, C119)
Y
IC100 has problem
Wave form of R158/ C115
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5. RGB Video Trouble Shooting

N
N
N
Replace R158, R160, R162,
Wave form of R730(Vsync)
Wave form of R160/ C117
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Replace JK703
Replace R729, R730
C115, C117, C119
Wave form of R729(Hsync)
Wave form of R162/ C119
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