Read LG 50PM6700-TK (CHASSIS:PA22A) Service Manual online
Y
Check Jack JK501/JK503
N
Y
Check CVBS Signal
R507/R550
N
Y
Check CVBS Signal
C514
N
Replace one of
C514
& Recheck
Y
Y
Replace Jack
Maybe MTK5369 (IC100)
has problems
Check Signal Format
Is it supported signal?
Check AV Cable
Replace one of
R507/R550
& Recheck
& Recheck
7. AV Video Trouble Shooting
AV1_CVBS
AV2_CVBS
720 X 480 (i)
Dot Freq : 13.5 MHz
H - Freq : 15.734 kHz
V – Freq : 59.939 Hz
V – Freq : 59.939 Hz
Click on the first or last page to see other 50PM6700-TK (CHASSIS:PA22A) service manuals if exist.