LG 50PJ350 Service Manual page 52

5. Component Video Trouble Shooting
Check Signal Format
Is it supported signal?
Y
Check Component Cable
Y
Check Component Jack JK1001
Y
Check Component Signal
R1020/R1021/R1022
R1005/R1012/R1013
Y
Check Component Signal
R175/R173/R177
R180/R182/R184
Y
Maybe Mstar S7(IC100)
has problems
Customer Oriented R&D
N
Replace Jack
Replace one of
N
R1020/R1021/R1022
R1005/R1012/R1013
& Recheck
N
Replace it
Breakthrough