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50PX950-AA (CHASSIS:PA02B) - LG TV Service Manual (repair manual). Page 56

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< SIF waveform – sample >
- Defend on the input signal.
Making 
전자 - 6-2
Revision 
PDP TV
Input
Block
Analog TV Audio Problem
Check video output
Follow procedure All source audio 
trouble shooting 
Y
Follow procedure analog TV 
video trouble shooting
N
Replace BCM IC (IC100)
Check #2 on TU600 for 5V
Check IC504 output Voltage
N
Y
Check SIF signal C607
Replace TU600
N
Y
Check SIF signal (C301)
Check SIF line
N
Y
Y
10/15
2010. 8 . 13
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