KDL-32R500C, KDL-32R503C, KDL-32R505C, KDL-32R507C, KDL-32R509C, KDL-40R510C, KDL-40R550C, KDL-40R553C, KDL-40R555C, KDL-40R557C, KDL-40R558C, KDL-40R559C, KDL-40R560C, KDL-48R510C, KDL-48R550C, KDL-48R553C, KDL-48R555C, KDL-48R557C, KDL - Sony TV Service Manual (repair manual). Page 11

Read Sony KDL-32R500C / KDL-32R503C / KDL-32R505C / KDL-32R507C / KDL-32R509C / KDL-40R510C / KDL-40R550C / KDL-40R553C / KDL-40R555C / KDL-40R557C / KDL-40R558C / KDL-40R559C / KDL-40R560C / KDL-48R510C / KDL-48R550C / KDL-48R553C / KDL-48R555C / KDL-48R557C / KDL Service Manual online

After checking, take note of 
NG condition & change B board 
3-2. No Power 
3-2-1. DD Con 
11 
Start 
Yes 
OK 
 
B-Board 
Check fuse. 
F6000 
 
No 
No 
No 
No 
No 
Yes 
Yes 
Yes 
Change B-
board 
Change B-
board 
Change B-
board 
DDCON 
Fuse 
 
B-Board 
Check voltage at JL005 
3.3V?  
 
 
B-Board 
Check voltage at  
BE
 JL008  
BA 
 JL6015 
1.2V?  
 
B-Board 
Check voltage at JL6016 
 1.5V?  
 
B-Board 
Check voltage at JL006 
 5V?  
 
Yes 
Change B-
board 
No 
Check 
LVDS 
B-Board 
Check voltage at : 
BE 
 JL003. 
BA 
 JL6017. 
12V? 
Troubleshooting 
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