Sony KD-55X8 G Series Service Manual page 71

4.2 No Picture (WW)
BSL
Component
No Picture
NG
Check if input OSD
*
Check J2600 Connector,
is GREY OUT
CR_DET at R2650
OK if it is highlighted
OK
Y : 1V
OK (Vpp: 3.3 V)
Check VIDEO_DET signal
Path at R2626
Pb : 0.7V
NG
Check wave between
(Y:C2602/C2627), (Pb:C2605),
(Pr:C2607)and IC1000
Pr : 0.7V
OK
Muffin [IC1000]
Connectivity
Problem
[All voltage measurement using Oscilloscope]
No Picture
NG (Vpp: 0 V)
NG (Vpp: 0 V)
OK (Vpp: 3.3 V)
**
Check condition of parts:
Y0P : [D2601/VR2602/R2606/
C2603/R2604]
PB0P : [VR2603/R2603/C2601/
R2607]
PR0P : [VR2601/R2610/C2606/
R2611]
S0Y : [R2642]
J2600
J2600 Connector
Problem
Problem
*
seen
seen
TV Business Division
Video
No Picture
Check if input OSD
is GREY OUT
OK if it is highlighted
OK
NG
Check wave
between C2611 and
IC1000
OK
Muffin [IC1000]
Parts Broken
Problem
 OK Condition : No solder splash can be
 NG Condition : Solder splash can be
Checking condition:
- TV ON & Video/CVBS/Composite/Component input cable is
connected to Video/CVBS/Composite/Component source
output.
- TV UI Display : Video 2/Component
OK (Vpp: 3.3 V)
NG
*
Check J2600
Connection,
VIDEO_DET
At R2626
NG (Vpp: 0 V)
NG (Vpp: 0 V)
OK (Vpp: 1 V)
J2600 Connector
Problem
**  OK Condition : No part short-
circuited
 NG Condition : Part short-circuited
71
NG
**
Check condition of parts
[D2601/VR2602/R2606/
C2603/R2619]
OK
J2600
Connectivity
Parts Broken
Problem
71