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Model
KDL-32CX520 KDL-32CX521 KDL-32CX523 KDL-32CX525 KDL-40CX520 KDL-40CX521 KDL-40CX523 KDL-40CX525 KDL-46CX520 KDL-46CX525
Pages
54
Size
3.13 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / S/N RANGE 3,000,001 - 4,510,000
File
kdl-32cx520-kdl-32cx521-kdl-32cx523-kdl-32cx525-kd.pdf
Date
PREV: Sony KDL-32EX427 / KDL-32EX527 / KDL-40EX527 / KDL-46EX527 (serv.man2) Service Manual

Sony KDL-32CX520 / KDL-32CX521 / KDL-32CX523 / KDL-32CX525 / KDL-40CX520 / KDL-40CX521 / KDL-40CX523 / KDL-40CX525 / KDL-46CX520 / KDL-46CX525 Service Manual ▷ View online

KDL-32/40/46CX520,521,523,525(AEP/UK/RUSS)
33
TROUBLE SHOOTING
3-2. FLOW CHART
START
Does the Power Led
stay on when the 
TV is switched on ?
Is the Standby Led
blink ?
Is the Picture and
Sound OK ?
END
See
No Power
See
Standby LED Blink
See
No Picture / No Sound
Is the network
connection OK?
See
Can’t connect network
No
Yes
Yes
No
No
Yes
Do the buttons
on the TV & Remote
Commander work
properly?
See
TV/ Commander 
button malfunction
No
No
Yes
No
Yes
Is the Power Led
blink ?
See
Power LED Blink
Yes
No
See
Skype malfunction
No
Is the Skype
function OK?
See
HDD Rec malfunction
No
Is the HDD Rec
function OK?
Yes
Yes
KDL-32/40/46CX520,521,523,525(AEP/UK/RUSS)
34
TROUBLE SHOOTING
3-3. NO POWER
No Power
Check STBY 3.3V
at pin 10 of CN6001
on the B* Board
Harness
G* Board
Replace
Between G* Board to
B* Board Harness
B* Board
NG
OK
NG
OK
KDL-32/40/46CX520,521,523,525(AEP/UK/RUSS)
35
1) 2 times blinking (Main Power Error)
TROUBLE SHOOTING
3-4. STANDBY LED BLINK
2 times blinking
Check REG12V at
pins 2/3 of
CN6001 on
the B* Board
B* Board
Harness
G* Board
Replace
Between G* Board to
B* Board Harness
12V NG
12V OK
NG
OK
KDL-32/40/46CX520,521,523,525(AEP/UK/RUSS)
36
TROUBLE SHOOTING
2) 3 times blinking (DC Alert, Audio Error and Communication Error)
3 times blinking
Check D+1.2V at
pin 14 of IC6005
on the B* Board
F6001,IC6005,etc
(B* Board)
Speaker
Check +3.3V_MAIN
at pin 9/10 of CN9003
on the B* Board
Check
Speaker Impedance
at SP Connector
F6003,IC6003,etc
(B* Board)
Check AUDIO+12.5V
at pin 8/9 of
CN6001 on
the B* Board
G* Board
Check +12.5V
at F4601 on
the B* Board
F4601,IC4601,etc
(B* Board)
IC4601,etc
(B* Board)
DC_ALERT
NG
OK
AUDIO
AUDIO
FE/BE Communication
NG
OK
NG
OK
NG
OK
NG
OK
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