Sony KDL-43W755C / KDL-43W756C / KDL-43W800C / KDL-43W805C / KDL-43W807C / KDL-43W808C / KDL-43W809C / KDL-50W755C / KDL-50W756C / KDL-50W800C / KDL-50W805C / KDL-50W807C / KDL-50W808C / KDL-50W809C / KDL-55W755C / KDL-55W756C / KDL-55W800C / KDL-55W805C / KDL Service Manual ▷ View online
Troubleshooting References
21
Troubleshooting
3-2-2. LED Blinking: 3x (DC Alert & Communication Error)
Board Name
Board PWB (A side)
Detail
BMX
(L9015)
BMX
(F9103)
BMX
(IC9021)
L9015
F9103
IC9021
22
Troubleshooting
3-2-2. LED Blinking: 3x (DC Alert & Communication Error)
Troubleshooting References
Board Name
Board PWB (A side)
Detail
BMX
(JL6010,
JL6011)
BMX
(JL6021)
BMX
(JL6022)
JL6010
JL6021
JL6022
JL6011
23
Troubleshooting
3-2-2. LED Blinking: 3x (DC Alert & Communication Error)
Troubleshooting References
Board Name
Board PWB (A side)
Detail
BMX
(CN9000)
BMX
(F7751)
BMX
(IC7751)
F7751
IC7751
CN9000
24
Troubleshooting
3-2-4. LED BLINKING 5x (Panel Communication Error) – a) 12.5V NG
Note: Board Details refer Section 3
main page.
5-times blinking
Check
PANEL_VCC 12.5V at
CN8400
on the B* Board
Replace the Harness
Between G* /LD board
and B board
Replace
the LVDS Harness
Change
B* Board
Change
Panel (T-con)
Harness
LVDS Harness
B*Board
NG
OK
NG
Symptom
improvement
Symptom
improve
Symptom
improve
NG
NG
G* Board/LD
Check 12.5V
G*/LD Board
XM-A/DT :
*3-1-1 No Power
– LD Board
NG
OK
Refer I2C Error
Checking in next slide
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