Sony GN1G - Trouble Shooting

56
KDL-50W800C, 805C, 807C, 809C/KDL-55W800C, 805C
TROUBLE SHOOTING
3-5-1. No Picture (BMX) (a)
Video 1
No Picture
Video 2
No Picture
Check wave between
C7512 and IC1000
Check if input OSD
is GREY OUT
OK if it is highlighted
OK
NG
No Picture Video
Check wave between
C7511 and IC1000
Check if input OSD
is GREY OUT
OK if it is highlighted
OK
NG
Muffin [IC1000]
Problem
Muffin [IC1000]
Problem
** Detailed check all
partsat CVBS2P
signal path
[VD7520/VD7506/
R7559/C7534]
* Check J7505
Connection,
VIDEO2_DET
At R7537
J7505 Connectivity
Problem
** Detailed check all
parts at VIDEO2_DET
Signal Path [R7556]
J7505 Connector
Problem
OK
NG
** Detailed check all parts
at CVBS3P signal path
[VD7507/R7524/R7525]
* Check J7504
Connection,
VIDEO_DET
At R7539
J7504 Connectivity
Problem
** Detailed check all
parts at VIDEO_DET
Signal Path [R7535]
J7504 Connector
Problem
OK
NG
OK (Vpp: 1 V)
NG (Vpp: 0 V)
OK (Vpp: 1 V)
NG (Vpp: 0 V)
OK (Vpp: 3.3 V)
NG (Vpp: 0 V)
OK (Vpp: 3.3 V)
NG (Vpp: 0 V)
OK (Vpp: 3.3 V)
NG (Vpp: 0 V)
OK (Vpp: 3.3 V)
NG (Vpp: 0 V)
Parts Broken Parts Broken
**  OK Condition : No part short-circuited
 NG Condition : Part short-circuited
*  OK Condition : No solder splash can be seen
 NG Condition : Solder splash can be seen
[All voltage measurement using Oscilloscope]