Sony XBR-43X830C Service Manual page 112

3-5-6. No Picture J/UC/HK/TW Destination (BMFL/BMFW)
XBR-43X830C, 49X830C, 835C, 837C
No Picture
Component
No Picture
NG
*
Check if input OSD Check J7504 Con
is GREY OUT
VIDEO_DET at R7539,
OK if it is highlighted CR_DET at R7538
OK
OK (Vpp: 3.3 V)
** Detailed check all parts
at VIDEO_DET signal
Path [R7535] and CR_DET
signal path [R7534]
OK (Vpp: 3.3 V)
NG (Vpp: 0 V)
Check wave
Between
C7515/C7518/C7520
and IC1000
OK (Vpp: 1 V)
Muffin [IC1000] J7504 Connector
Problem
Problem
 OK Condition : No solder splash can be seen
*
 NG Condition : Solder splash can be seen
NG (Vpp: 0 V)
NG (Vpp: 0 V)
** Detailed check all parts
at signal path of:
Y1P : [D7530/R7524/C7514/
R7527]
PB1P : [VD7508/R7529/C7517/
R7530]
PR1P : [VD7509/R7532/C7519/
R7553]
OK
J7504 Connectivity
Problem
**
TROUBLE SHOOTING
NG
Parts Broken
 OK Condition : No part short-circuited
 NG Condition : Part short-circuited
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