LG 50PG30 Service Manual page 23

Component Video Trouble Shooting
C833, C834, C835, C838, C839, C840
Maybe Mstar(IC100) has problems
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Only for training and service purposes
TROUBLE SHOOTING GUIDE
Check signal format
Is it supported?
Y
Check Component Cable
Y
Check JK602 / JK603
Y
Check signal
Y
Check signal IC601 output
R631, R632, R633
Y
N
Replace connector
N
Replace it.
N
Replace it
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