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9. Digital TV Audio
Check RF Cable & Signal
ok
Check Tuner 5V Power
L700
ok
Check Tuner 3.3V Power
L701
ok
Check Tuner 1.2V Power
IC700 2 pin : 1.2V
ok
Check IF_P/N Signal
TU700 17/18 Pin
ok
Follow procedure
'8. All source audio'
trouble shooting guide.
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Only for training and service purposes
No
Check IC8003
No
Replace L701
No
Replace IC700
No
Bad Tuner. Replace Tuner.
No
Replace IC8003
ok
Replace L8007
LGE Internal Use Only
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