XBR-55X905A, XBR-65X905A - Sony TV Service Manual (repair manual). Page 16

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XBR-55X905A/65X905A 11
SECTION 2 - TROUBLESHOOTING
VIDEO DISTORSION FLOWCHART
*For Part Number information, refer to 
“Section 4 - Exploded View/Part Number Information” on page 25
.
Video Distortion
Is distortion 
across entire 
screen?
Any horizontal 
lines?
No
No
Yes
Yes
Improper or 
missing 
colors?
Yes
Main Board*
No
Vertical lines
or bars?
No
Yes
Lines
move when 
wide-mode 
changed?
Yes
No
TCON*
(LCD Panel)
Main Board*
LCD Panel*
Any single or 
isolated vertical 
lines?
Yes
LCD Panel*
More than 1 
vertical band?
No
Yes
TCON*
(LCD Panel)
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