Component Video - LG 42LK450 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 JK1604 , JK9901
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 JK1601 or 1603
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
Replac e R9915 or R1666.
No
Replace Mstar(IC101) o r Main Board.
No
Replace Jack.
No
Replac e R1614, R4223 or R1615.
No
Replace Mstar(IC101) o r Main Board.
- 16 - LGE Internal Use Only