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60PS8000-ZA (CHASSIS:PD91A) - LG TV Service Manual (repair manual). Page 66

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< CVBS waveform – sample >
- Defend on the input signal.
Making 
Revision 
2009. 2 . 1
PDP TV
Input
Block
Analog TV Video Problem
Check RF Cable
Check CVBS signal
IC1104 #16 Pin
Replace Tuner(IC1104)
Y
N
Replace IC1103 or IC1104
Y
N
Y
Replace Mstar(IC100)
Check 3.3V and 1.8V and 1.2V Voltage 
on IC1103, IC1104(Chiptuner)
3/14
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