Read LG 47LX9500-UA (CHASSIS:LA02R) Service Manual online
Check input signal format.
Is it supported?
Check Component Cable
for damage or open conductor.
Check JK100
Y/PB/PR signal Line
ok
ok
ok
No
Replace Jack
Check COMP_DET Signal
Replace R119 or R129
No
ok
No
Check FRC and BCM LVDS Output
Replace Mstar(IC9001) or BCM( IC900)
or Main Board.
5. Trouble shooting - No video (Component)
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