Sony KD-43X7 G Series Service Manual page 79

2.6.16 Video Analog Signal Path – No Picture – UC Destination
2.6.16.2 Video Analog Signal Path – No Picture – General Checking - No Picture UC Destination (BB9)
CHL UC
Video
No Picture
Check waveform
before C2006?
Is it Vpp : 1V?
Yes
Check all parts
at CVBS0P signal path.
[VR2000,R2004,
C2000, R2017]
J2000 connector
Problem.
(Change connector)
No Picture or
Abnormal Picture
Reinsert Mini Plug
Video Adaptor
until hear
"click" sound
IC5000 Problem
No (Refer IC
troubleshooting
manual)
No
Parts Broken.
(Change Part)
Mini Plug Video
Adaptor
Component
No Picture
Check Vpp waveform
at 1) C2003 for Y : 1V?
2) C2008 for Pb :0.7V?
3) C2009 for Pr :0.7V?
Yes
1) Y : 1V
Check all parts.
Y: VR2000,R2004,C2000,
R2014
PB: VR2001, R2005, C2001, R2018
PR: VR2002, R2006, C2002,
R2019
J2000 connector
Problem.
(Change connector)
IC5000 Problem
No
(Refer IC
troubleshooting
manual)
2) Pb : 0.7V
3) Pr : 0.7V
No
Parts Broken.
(Change Part)
79
SYS SET