Sony KDL-32R400C / KDL-32R403C / KDL-32R405C / KDL-32R408C / KDL-32R410C / KDL-40R450C / KDL-40R453C / KDL-40R455C / KLV-32R412C Service Manual ▷ View online
7x LED Blinking - KK board Photo
Troubleshooting
7x LED Blinking KK board Photo
F4500
IC4505
CN4505
CN4505
F4501
25
7x LED Blinking - KK board Layout
Troubleshooting
F4500
IC4505
CN4505
F4501
26
Troubleshooting
3-4. No Picture
3-4-1. General
3-4-1. General
No Picture
Check Input Source:
Check Input Source:
Check
PANEL VCC SW
Input
Still No
Picture
Picture
BL_ON
CHECK BL ON on
+12V
-Tuner
- MHL/HDMI
-Video/Component
Replace LVDS FFC
Harness
PANEL_VCC_SW
+12V voltage at
C8601 (BA) /
CL6017 (BE) on
B-Board
OK
Picture
OK
CHECK BL_ON on
B-Board at CL9012.
HIGH (+3.3V): OK
LOW (0V): NG
OK
LVDS FFC
Harness
Problem
Problem
Adaptor
or +12V DDCON
Problem
Picture OK
Backlight or LED
Driver Problem
BL_ON NG
+12V NG
Replace Input
Source
Input NG
Problem
Change
Still No
Picture
Replace B-Board
Change
Panel
Module* or
O-Cell*
Picture
END
* O-Cell or Panel
Module replacement
depends on service
capabilities
Module replacement
depends on service
capabilities
B-Board Issue
Picture OK
Panel or O-Cell
Issue
Picture OK
27
PHOTO
CAD
C8601
BA
Troubleshooting
C8601
PHOTO
CAD
CL9012
CL9012
PHOTO
CAD
BE
CL6017
CAD
PHOTO
CL9012
CAD
28
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