DOWNLOAD Sony KDL-40HX750 / KDL-46HX750 / KDL-55HX750 Service Manual ↓ Size: 15.98 MB | Pages: 120 in PDF or view online for FREE

Model
KDL-40HX750 KDL-46HX750 KDL-55HX750
Pages
120
Size
15.98 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-40hx750-kdl-46hx750-kdl-55hx750.pdf
Date
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Sony KDL-40HX750 / KDL-46HX750 / KDL-55HX750 Service Manual ▷ View online

KDL-40/46/55HX750(CH)
89
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
KDL-40/46/55HX750(CH)
90
TROUBLE SHOOTING
4) 6 times blinking (Backlight Error)
6 time blinking
Check
BACKLIGHT_MON
at JL6017
on B* board
B* board
Under 2.65V
NG
Over 2.65V
Light source
(Inside Panel module)
Check the connection
between G* board and
the light source 
(inside the panel module).
NG
LS connection
Check the harness
between G* board
and B* board.
G-B harness
NG
OK
3a’s G* will go into the backlight error when 
BL_ON = 3.3 V and PWM_DIMMER = 0 V.
BL_ON: G* CN6401#5
PWM_DIMMER:  G* CN6401#2
Tcon board
Symptom 
improvement
Change Tcon board
Replace
the LVDS FFC
LVDS FFC
Symptom 
improvement
NG
G* board
Symptom 
improvement
Change G* board
NG
KDL-40/46/55HX750(CH)
91
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
Symptom 
improvement
KDL-40/46/55HX750(CH)
92
TROUBLE SHOOTING
7) 10 times blinking (3D Emitter Error)
10 times blinking
Harness/FFC
NG
OK
Change HEM* Board
HEM* Board
OK
T-CON Board
NG
Check the FFC between
Tcon board and B* board,
and the harness between
B board and HEM* board.
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