LG 60PB5600 Service Manual page 47

11. Analog TV Audio Trouble Shooting
Check video output
Y
Check Tuner Power
Y
Check SIF Signal
Y
Follow procedure All source audio
trouble shooting
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Only for training and service purposes
N
Follow procedure analog TV video
trouble shooting
N
Replace one of IC608,IC601
& Recheck
N
Maybe Tuner has problems
Maybe Mstar audio block has
N
problems.
Replace It
< SIF waveform – sample >
- Defend on the input signal.
LGE Internal Use Only