Sony GN3UN - Page 77

3f.9.2 Video Analog Signal Path – No Picture – General Checking - No Picture WW Destination (BLM_UC Only)
3f.9 Video Analog Signal Path
No Picture or
Abnormal Picture
Reinsert Mini Plug
Video Adaptor
until hear
“click” sound
Check waveform
before C3007?
Is it Vpp : 1V?
J3000 connector
Problem.
(Change connector)
Yes
No
Check all parts
at CVBS1P signal path.
[VD3001,R3005,
C3039, R3018]
Parts Broken.
(Change Part)
No
IC5000 Problem
(Refer IC
troubleshooting
manual)
Video
No Picture
J3000 connector
Problem.
(Change connector)
Yes
No
Parts Broken.
(Change Part)
No
IC5000 Problem
(Refer IC
troubleshooting
manual)
Component
No Picture
Check Vpp waveform
at 1) C3004 for Y : 1V?
2) C3009 for Pb :0.7V?
3) C3010 for Pr :0.7V?
Check all parts.
Y: VD3001,R3005,C3039,
R3017,C3006,R3015
PB: VD3002, R3006, C3002, R3019
PR: VD3003, R3007, C3003,
R3020, C3010
1) Y : 1V
2) Pb : 0.7V
3) Pr : 0.7V
Mini Plug Video
Adaptor
KM Unique
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