Read Sony KDL-32R435A / KDL-40R485A / KDL-46R485A / KLV-24R402A / KLV-24R422A / KLV-32R402A / KLV-32R407A / KLV-32R422A / KLV-40R452A / KLV-40R457A / KLV-40R472A / KLV-46R452A / KLV-46R472A Service Manual online
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
3 4 No Picture
3-4. No Picture
No Picture
Note :
PANEL VCC SW = 12V±0 8V
Check Input Source:
-Tuner
Replace LVDS FFC
Check
PANEL VCC SW at
Input
OK
Still No
Picture
Picture
OK
CHECK BL_ON on
B-Board at R5037.
PANEL_VCC_SW = 12V±0.8V
+12V
OK
- MHL/HDMI
-Video/Component
p
Harness
_
_
JL6007 on
B-Board
Picture OK
HIGH: OK
LOW: NG
NG
No +12V
Input NG
LVDS FFC
Harness
Problem
Adaptor
or +12V DDCON
Problem
Picture OK
Backlight or LED
Driver Problem
Replace Input
Source
put
G
Replace B-Board
Panel Module
O C ll
Still No Picture
END
Replace B-Board
or O-Cell
Problem
Picture OK
END
Picture OK
B-Board Issue
* O-Cell or Panel Module
replacement Not recommended
at Service Side.
replacement Not recommended
at Service Side.
*Panel or O-Cell
Issue
25
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