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Model
KDL-32HX750 KDL-32HX751 KDL-32HX753 KDL-32HX755 KDL-32HX757 KDL-32HX758 KDL-32HX759 KDL-40HX750 KDL-40HX751 KDL-40HX753 KDL-40HX755 KDL-40HX756 KDL-40HX757 KDL-40HX758 KDL-40HX759 KDL-40HX75G KDL-46HX750 KDL-46HX751 KDL
Pages
127
Size
24.52 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-32hx750-kdl-32hx751-kdl-32hx753-kdl-32hx755-kd.pdf
Date

Sony KDL-32HX750 / KDL-32HX751 / KDL-32HX753 / KDL-32HX755 / KDL-32HX757 / KDL-32HX758 / KDL-32HX759 / KDL-40HX750 / KDL-40HX751 / KDL-40HX753 / KDL-40HX755 / KDL-40HX756 / KDL-40HX757 / KDL-40HX758 / KDL-40HX759 / KDL-40HX75G / KDL-46HX750 / KDL-46HX751 / KDL Service Manual ▷ View online

KDL-32/40/46/55HX750,751,753,755,756,757,758,759,75G(AEP/UK/IT/NOR)
105
TROUBLE SHOOTING
3-3. NO POWER
No power
Check STBY_+3.3V
at 10 pin of CN6001
on the B* board
Harness
G* board
Replace the harness
between G* board and
B* board
B* board
NG
OK
NG
Symptom 
improvement
Long AC off
(> 15 min.).
Power protection or
CPU abnormal stop
NG
OK
KDL-32/40/46/55HX750,751,753,755,756,757,758,759,75G(AEP/UK/IT/NOR)
106
1) 2 times blinking (Main Power Error)
TROUBLE SHOOTING
3-4. STANDBY LED BLINK
2 times blinking
Check REG+12V at
pins 3/5 of
CN6001 on
the B* Board
B* Board
Harness
G* Board
Replace
Between G* Board to
B* Board Harness
12V NG
12V OK
NG
Symptom 
improvement
KDL-32/40/46/55HX750,751,753,755,756,757,758,759,75G(AEP/UK/IT/NOR)
107
TROUBLE SHOOTING
2) 3 times blinking (Main Board Error)
3 times blinking
Check D+1.2V at
JL6002
on the B* Board
F6001,IC6001,etc
(B* Board)
Speaker
Check +3.3V_MAIN
at JL6005 on
the B* Board
Check
Speaker Impedance
at SP Connector
F6003,IC6003,etc
(B* Board)
Check AUDIO+12.5V
at pin 2/4 of
CN6001 on
the B* Board
G* Board
Check +12.5V
at F4601 on
the B* Board
F4601,IC4601,etc
(B* Board)
DC_ALERT
NG
OK
AUDIO
AUDIO
FE/BE Communication
NG
OK
NG
OK
NG
OK
NG
OK
Other B* Board’s parts
(Audio, Tuner, HDMI Eq...)
KDL-32/40/46/55HX750,751,753,755,756,757,758,759,75G(AEP/UK/IT/NOR)
108
TROUBLE SHOOTING
3) 5 times blinking (T-con Error)
5 time blinking
Check PANEL_VCC
at JL6001 on
on the B* Board
G* Board
Replace the Harness 
Between G* and Panel
(Only 3a-G)
Replace
the LVDS FFC
Panel (T-con)
change
B* Board
Harness
LVDS FFC
Panel (T-con)
about 5V : 22” Model
about 12V : ex. 22” Model
NG
OK
NG
Symptom 
improvement
Symptom 
improvement
Symptom 
improvement
NG
NG
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