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  • KDL-32EX421, KDL-32EX425, KDL-32EX520, KDL-32EX521, KDL-32EX523, KDL-32EX524, KDL-32EX525, KDL-37EX521, KDL-37EX524, KDL-37EX525, KDL-40EX520, KDL-40EX521, KDL-40EX523, KDL-40EX524, KDL-40EX525, KDL-46EX520, KDL-46EX521, KDL-46EX524, KDL

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Model
KDL-32EX421 KDL-32EX425 KDL-32EX520 KDL-32EX521 KDL-32EX523 KDL-32EX524 KDL-32EX525 KDL-37EX521 KDL-37EX524 KDL-37EX525 KDL-40EX520 KDL-40EX521 KDL-40EX523 KDL-40EX524 KDL-40EX525 KDL-46EX520 KDL-46EX521 KDL-46EX524 KDL
Pages
67
Size
3.99 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / S/N RANGE 1,000,001 - 1,999,999
File
kdl-32ex421-kdl-32ex425-kdl-32ex520-kdl-32ex521-kd.pdf
Date
PREV: Sony KDL-22PX300 / KDL-32EX403 / KDL-32EX40B / KDL-32EX43B / KDL-32EX500 / KDL-32EX501 / KDL-32EX503 / KDL-32EX504 / KDL-32EX505 / KDL-32EX508 / KDL-32EX603 / KDL-32EX605 / KDL-32EX700 / KDL-32EX701 / KDL-32EX703 / KDL-32EX705 / KDL-32EX706 / KDL-32EX707 / KDL Service Manual

Sony KDL-32EX421 / KDL-32EX425 / KDL-32EX520 / KDL-32EX521 / KDL-32EX523 / KDL-32EX524 / KDL-32EX525 / KDL-37EX521 / KDL-37EX524 / KDL-37EX525 / KDL-40EX520 / KDL-40EX521 / KDL-40EX523 / KDL-40EX524 / KDL-40EX525 / KDL-46EX520 / KDL-46EX521 / KDL-46EX524 / KDL Service Manual ▷ View online

KDL-32EX421,425/37EX521,524,525/32/40/46EX520,521,523,524,525(AEP/UK)
41
TROUBLE SHOOTING
3) 5 times blinking (T-con Error)
5-time blinking
Check PANEL_VCC
at pin 1 of
CN6001 on
on the B* Board
G* Board
Replace the Harness 
Between G* and Panel
(a)
Replace
the LVDS Harness
Panel (T-con)
change
B* Board
Harness
LVDS Harness
Panel (T-con)
about 5V : 22” Model
about 12V : ex. 22” Model
(a) exclude 60Hz Panel Model
NG
OK
NG
Symptom 
improvement
Symptom 
improvement
Symptom 
improvement
NG
NG
RGB sensor Change
RGB Sensor
(b) Only for Y* Models
Symptom 
improvement
KDL-32EX421,425/37EX521,524,525/32/40/46EX520,521,523,524,525(AEP/UK)
42
TROUBLE SHOOTING
4) 6 times blinking (Backlight Error)
6-time blinking
Check
BL_ERR at
pin 7 of CN6002
on the B* Board
B* Board
Under 2.65V
G* board
NG
Over 2.65V
Symptom 
improvement
Change G* Board
Panel 
KDL-32EX421,425/37EX521,524,525/32/40/46EX520,521,523,524,525(AEP/UK)
43
TROUBLE SHOOTING
5) 7 times blinking (Temperature Error)
7 times blinking
Setting circumstance
is OK?
Temperature,
Ventilation, etc.
Set to another
Location, etc.
NO
YES
Change B* Board,
and Aging a few hours
B* Board
OK
Panel
6) 8 times blinking (Software Error)
8 times blinking
If the Symptom
Improved by changing
the WIFI module
B* Board
NO
WIFI Module
YES
KDL-32EX421,425/37EX521,524,525/32/40/46EX520,521,523,524,525(AEP/UK)
44
TROUBLE SHOOTING
3-5. NO PICTURE
No Picture
Press HOME Key
XMB (Menu) displayed?
B* Board
Replace
the LVDS Harness
LCD Panel
(T-con)
Harness
(LVDS)
Check BL_ON
at pin 6 of CN6002
on the B* Board
BL_ON:H
B* Board
Replace Harness
(Between G* Board
to B* Board)
Harness
(G* to B*)
BL_ON: L
Change B* Board
G* Board
NO
YES
NG
OK
NG
OK
NG
OK
Check PANEL_VCC
at pin 1 of CN6001
on the B* Board
G* Board
YES
NO
about 5V : 22”/26” Model
about 12V : ex. 22”/26” Model
Page of 67
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