LG M2762D - USB Setup and Digital Audio Out

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