Sony A1E Series Service Manual page 34

FLOW
4-2. NO PICTURE (VIDEO ANALOG SIGNAL PATH)
No Picture
Video
No Picture
Check if input OSD NG
is GREY OUT
OK if it is highlighted
OK
NG (Vpp: 0 V)
Check wave between
C2628 and IC1000
OK (Vpp: 1 V)
Muffin [IC1000]
Problem
XBR-55/65A1E
* Check J2601
NG (Vpp: 0V)
Connection,
VIDEO_DET at R2631
OK (Vpp: 3.3 V)
** Detailed check all
NG (Vpp: 0V)
parts at VIDEO2_DET
signal Path [R2630]
OK (Vpp: 3.3V)
J2601
Connector
Problem
Video Analog Signal Path
Video
(Side Mini Jack)
** Detailed check all parts
at CVBS3P signal path
[D2609/R2629/R2621/C2612
C2628/R2643/VD207]
OK
J2601
Connectivity
Problem
 OK Condition : No solder splash can be seen
*
 NG Condition : Solder splash can be seen
 OK Condition : No part short-circuited
**
 NG Condition : Part short-circuited
TROUBLE SHOOTING
L36:CVBS3P
CVBS3P
G16:GPIO66
VIDEO2_DET
NG
Parts Broken
M2
IC1000
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