Component Video - LG 37LD450 Service Manual

4. AV Video
Check input signal format.
Is it supported?
ok
Check AV Cable for damage
for damage or open conductor
ok
Check JK3801 , JK3302
CVBS Signal Line
R246 , R4016
ok
Check CVBS_DET Signal
ok
Check Mstar LVDS Output

5. Component Video

Check input signal format.
Is it supported?
ok
Check Component Cable
for damage or open conductor.
ok
Check JK3801
Y/PB/PR signal Line
ok
Check COMP_DET Signal
ok
Check Mstar LVDS Output
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Only for training and service purposes
No
Replace Jack
No
Replace R4802 or R4803
No
Replace Mstar(IC100) or Main Board.
No
Replace Jack
No
Replace R4804 or R4805
No
Replace Mstar(IC100) or Main Board.
LGE Internal Use Only