LG 32LD350 Service Manual page 42

10. Analog TV Audio
Check RF Cable & Signal
ok
Check Tuner 5V Power
L5004
ok
Check Tuner 3.3V Power
L5003
ok
Check Tuner 1.26V Power
IC5001 2 pin : 3.3V
ok
Check SIF Signal & Buffer signal
TU5001 11 Pin / R5032
ok
Follow procedure
'8. All source audio'
trouble shooting guide.
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Only for training and service purposes
No
Check IC401
No
Replace L5003
No
Replace IC5001.
No
Replace Tuner. Or Replace Q5004
No
Replace IC401
ok
Replace L5004
LGE Internal Use Only