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9. Digital TV Audio
Check RF Cable & Signal.
ok
Check Tuner 3.3V Power
L3703.
ok
Check Tuner 1.8V Power.
IC3703 2 pin : 1.8V
ok
Check IF_P/N Signal
TU3700 10/11 Pin.
ok
Follow procedure
'8. All source audio'
trouble shooting guide.
10. Analog TV Audio
Check RF Cable & Signal.
ok
Check Tuner 3.3V Power
L3703.
ok
Check Tuner 1.8V Power
IC3703 2 pin : 1.8V.
ok
Check CVBS Signal
TU3700 8 Pin.
ok
Follow procedure
' 8. All source audio'
trouble shooting guide.
Copyright ©2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
No
Replace L3703.
No
Replace IC3703.
No
Bad Tuner. Replace Tuner.
No
Replace L3703.
No
Replace IC3703.
No
Bad Tubner. Replace Tuner.
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LGE Internal Use Only
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