KDL-40R450A, KDL-46R450A - Sony TV Service Manual (repair manual). Page 15

Read Sony KDL-40R450A / KDL-46R450A Service Manual online

KDL-40R450A/46R450A 11
SECTION 2 - TROUBLESHOOTING
*For Part Number information, refer to 
“Section 4 - Exploded View/Part Number Information” on page 19
.
VIDEO DISTORTION FLOWCHART
Video Distortion
Is distortion 
across entire 
screen?
Any horizontal 
lines?
No
No
Yes
Yes
Improper of 
missing colors?
Yes
Main Board
No
Vertical lines
or bars?
No
Yes
Lines move 
when wide-mode 
changed?
Yes
No
LCD Panel
Main Board
LCD Panel
Any single or 
isolated vertical 
lines?
Yes
LCD Panel
More than 1 
vertical band?
No
Yes
LCD Panel
Uneven 
brightness?
LCD Panel
Yes
Page of 27
Display

Click on the first or last page to see other KDL-40R450A / KDL-46R450A service manuals if exist.