50
4.2 No Picture
Video
No Picture
Check wave between
C2825 and IC1000
**
Detailed check all parts
at CVBS0P signal path
[R2843/R2844/R2845/R2852
/R2853/VR2800/D2800
Check if input OSD
is GREY OUT
OK if it is highlighted
*
Check J2800
Connection,
VIDEO_DET
At R2841
Muffin [IC1000]
Problem
OK
NG
No Picture
J2800 Connectivity
Problem
**
Detailed check all
parts at VIDEO_DET
signal Path [R2840]
Parts Broken
J2800 Connector
Problem
OK
NG
**
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
OK (
Vpp: 0.56 V
)
NG (
Vpp: 0 V
)
OK (
Vpp: 3.3 V
)
NG (
Vpp: 0V
)
OK (
Vpp: 3.3V
)
NG (
Vpp: 0V
)
Condition
Actions to be taken
Refer to IC troubleshooting for further
investigation
Change Connector
Change Part
J2800 Connector
Proble
m
Parts Broken
Muffin [IC1000]
Problem
J2800 Connectivity
Problem
T R O U B L E S H O O T I N G
SAFETY NOTES
SELF DIAGNOSTIC FUNCTION
TROUBLESHOOTING
SERVICE ADJUSTMENT
DIAGRAM
HANDLING GUIDE
50
SYS SET
2021/02/04 23:38:48 (GMT+09:00)