LG 39LY340H - Other Connections

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Only for training and service purposes
8. AV/RGB Audio
Check AV Cable for damage
for damage or open conductor
Check JK1702 Signal Line
R1714,R1715
ok
ok
No
Replace Jack
Follow procedure
‘7. All source audio’
trouble shooting guide.
7. Digital/Analog TV Audio
Check RF Cable & Signal
Follow procedure
‘7. All source audio’
trouble shooting guide.
ok
Check Tuner 3.3V Power
L1600
Replace L1600
Check IF_P/N Signal
TU1601 6,7 Pin
ok
ok
No
No
Bad Tuner. Replace Tuner.