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6. Analog TV VIDEO
Check RF Cable
Y
Check Tuner 5V Power
IC703 #5 Pin
Y
Check CVBS signal
TU400 #16 Pin
Y
Check CVBS signal
C112
Y
Replace
Mstar(IC100)
7. Component Video
Check
input
signal format
Is it supported?
Y
Check Component Cable
Y
Check JK901 / P2002
Y
Check signal
C1711, C1712, C1713,R2021, R2022,
R2023
Y
Check signal IC903 output
R991, R990, R993
Y
Replace
Mstar(IC100)
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
N
Replace
N
Replace
Tuner(TU400)
N
Replace
N
Replace connector
N
Replace it.
N
Replace it
- 20 -
IC703
C112
LGE Internal Use Only
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