10. Digital TV Audio
Check RF Cable & Signal.
ok
No
Check Tuner 3.3V Power
L3703.
ok
No
Check Tuner 1.8V Power.
IC3703 2 pin : 1.8V
ok
No
Check IF_P/N Signal
TU3700 10/11 Pin.
ok
Follow procedure ’9. All source audio’ trouble shooting guide.
Replace L3703.
Replace IC3703.
Bad Tuner. Replace Tuner.
11. Analog TV Audio
Check RF Cable & Signal.
ok
No
Check Tuner 3.3V Power
L3703.
ok
No
Check Tuner 1.8V Power
IC3703 2 pin : 1.8V.
ok
No
Check CVBS Signal
TU3700 8 Pin.
ok
Follow procedure ’9. All source audio’ trouble shooting guide.
Replace L3703.
Replace IC3703.
Bad Tubner. Replace Tuner.
Copyright ©2012 LG Electronics. Inc. All right reserved. | - 20 - | LGE Internal Use Only |
Only for training and service purposes |
|
|
