LG 50PT350 Service Manual page 42

Repair Process-Reference data
Input
PDP TV
Block
Check video output
Y
Check #3 on TU300 for 5V
Y
Check SIF signal C301
Y
Check SIF signal (C301)
Y
Follow procedure All source audio
trouble shooting
Y
Replace MSTAR IC (IC400)
Analog TV Audio Problem
N
Follow procedure analog TV
video trouble shooting
N
Check IC605 output Voltage
N
Replace TU300
N
Check SIF line
Making 2010. 11. 16
Revision
< SIF waveform – sample >
- Defend on the input signal.
ⓒ LG Electronics. Inc.2010
전자 - 6-2
A2-3