LG 50PT350 Service Manual page 50

Repair Process-Reference data
Input
PDP TV
Block
Check RF Cable
Y
Check 5V voltage
on TU300(Pin3)
Y
Check CVBS signal
TU601 #11 Pin
Y
Replace MSTAR(IC400)
Analog TV Video Problem
N
Check IC605 Output
Voltage(L610)
N
Replace Tuner(TU300)
Making
Revision
< CVBS waveform – sample >
- Defend on the input signal.
A6
전자 - 6-2
2010. 11. 16
A6-2
ⓒ LG Electronics. Inc.2010