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  • KDL-32EX720, KDL-32EX721, KDL-32EX723, KDL-32EX724, KDL-32EX725, KDL-32EX726, KDL-32EX727, KDL-32EX728, KDL-32EX729, KDL-37EX720, KDL-37EX723, KDL-37EX725, KDL-40EX720, KDL-40EX721, KDL-40EX723, KDL-40EX724, KDL-40EX725, KDL-40EX726, KDL

DOWNLOAD Sony KDL-32EX720 / KDL-32EX721 / KDL-32EX723 / KDL-32EX724 / KDL-32EX725 / KDL-32EX726 / KDL-32EX727 / KDL-32EX728 / KDL-32EX729 / KDL-37EX720 / KDL-37EX723 / KDL-37EX725 / KDL-40EX720 / KDL-40EX721 / KDL-40EX723 / KDL-40EX724 / KDL-40EX725 / KDL-40EX726 / KDL Service Manual ↓ Size: 26.46 MB | Pages: 127 in PDF or view online for FREE

Model
KDL-32EX720 KDL-32EX721 KDL-32EX723 KDL-32EX724 KDL-32EX725 KDL-32EX726 KDL-32EX727 KDL-32EX728 KDL-32EX729 KDL-37EX720 KDL-37EX723 KDL-37EX725 KDL-40EX720 KDL-40EX721 KDL-40EX723 KDL-40EX724 KDL-40EX725 KDL-40EX726 KDL
Pages
127
Size
26.46 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / S/N RANGE 3,000,001-5,500,000
File
kdl-32ex720-kdl-32ex721-kdl-32ex723-kdl-32ex724-kd.pdf
Date
PREV: Sony KDL-32EX720 / KDL-32EX723 / KDL-40EX720 / KDL-40EX723 / KDL-46EX720 / KDL-46EX723 / KDL-55EX720 / KDL-55EX723 (serv.man2) Service Manual

Sony KDL-32EX720 / KDL-32EX721 / KDL-32EX723 / KDL-32EX724 / KDL-32EX725 / KDL-32EX726 / KDL-32EX727 / KDL-32EX728 / KDL-32EX729 / KDL-37EX720 / KDL-37EX723 / KDL-37EX725 / KDL-40EX720 / KDL-40EX721 / KDL-40EX723 / KDL-40EX724 / KDL-40EX725 / KDL-40EX726 / KDL Service Manual ▷ View online

KDL-32/37/40/46/55EX720,721,723,724,725,726,726,727,728,729(AEP/UK/RUSS)
101
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-32/37/40/46/55EX720,721,723,724,725,726,726,727,728,729(AEP/UK/RUSS)
102
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-32/37/40/46/55EX720,721,723,724,725,726,726,727,728,729(AEP/UK/RUSS)
103
TROUBLE SHOOTING
2) 3 times blinking (DC Alert, Audio Error and Communication Error)
3 times blinking
Check D+1.2V at
pin14 of IC6005
on the B* Board
F6001,IC6005,etc
(B* Board)
Speaker
Check +3.3V_MAIN
at pins 9/10 of CN9003
on the B* Board
Check
Speaker Impedance
at SP Connector
F6003,IC6003,etc
(B* Board)
Check AUDIO+12.5V
at pins 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
KDL-32/37/40/46/55EX720,721,723,724,725,726,726,727,728,729(AEP/UK/RUSS)
104
TROUBLE SHOOTING
3) 4 times blinking (Balancer Error)
4-time blinking
Check
PANEL_FAIL at
pin 7 of CN6002
on the B* Board
Panel
B* Board
Between 0.84V to 2.65V
Change G* Board
G* Board
Below 0.84V
Symptom 
improvement
NG
Change LED Driver Board
LED Driver Board
Symptom 
improvement
Page of 127
Display

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