LG 55G2 - 5. Trouble shooting - No video (Component)

Check input signal format.
Is it supported?
Check Component Cable
for damage or open conductor.
Check JK3801
COMP1_Y, COMP1_Pb,
COMP1_Pr signal Line
ok
ok
ok
No
Replace Jack
Check COMP1_DET Signal
Replace R3806 or Jack
No
ok
No
Check L9 Ace(IC101) Chip
Replace IC101
5. Trouble shooting - No video (Component)
ok
No
Check L9 D-chip (IC100) Chip
Replace IC100 or Main Board
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