Read LG 26CS460 / 26CS460Y / 26CS461 / 26CS470 (CHASSIS:LB21C) Service Manual online
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4. AV Video
5. Component Video
Check input signal format.
Is it supported?
Check AV Cable for damage
for damage or open conductor
Check JK1602
CVBS Signal Line
R246
ok
ok
ok
No
Replace Jack JK1602
ok
Check CVBS_DET Signal
Replace L1603
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
No
Check input signal format.
Is it supported?
Check Component Cable
for damage or open conductor.
Check JK1602
Y/PB/PR signal Line
ok
ok
ok
No
Replace Jack JK1602
Check COMP_DET Signal
Replace L1601, R1614
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
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