LG 42LG30 - Page 19

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Only for training and service purposes
LGE Internal Use Only
RGB Video
Check input signal format
Is it supported?
Check signal, Hsync, Vsync
R633, R634
Check other set.
If no problem, check signal line.
Check R/G/B signal
R640, R641, R642
Y
N
Check JK605
Replace Jack
Y
N
Y
Check other set.
If no problem, check signal line.
N
Check RGB Cable conductors for
damage
Y
Check Mstar LVDS output
Replace Mstar(IC100)
N
Y