Sony KDL-32EX720 / KDL-32EX723 / KDL-40EX720 / KDL-40EX723 / KDL-46EX720 / KDL-46EX723 / KDL-55EX720 / KDL-55EX723 / KDL-60EX720 Service Manual ▷ View online
Trouble Shooting
KDL- 32, 40, 46, 55, 60 EX720, 32, 40, 46, 55 EX723
RM-GD019
3-2-7. 6-times blinking( Backlight Error)
6-times blinking
Change LED driver
board
LED Driver Board
Symptom
improvement
improvement
Check the harness between
the T-con board and
the LED driver board.
Harness
NG
NG
OK
Symptom
Change G* board
G* Board
OK
Symptom
improvement
improvement
Change B*
board
B* Board
y p
improvement
NG
Ch
k FFC
ti
b t
NG
Light Source
(Inside Panel Module)
NG
Check FFC connection between
the LED driver board and
the light source
(inside the panel module)
FFC Connection
OK
Note: B* and G* Board
Size
B* Board
Type
G* Board
Type
OK
32
BAT-V G10A
40
BAT-V
G4B
46
BAT-V
G5D
55
BAT-V
G6A/G8A
2
8
55
BAT V
G6A/G8A
60
BAT-V
G6A/G8A
Trouble Shooting
KDL- 32, 40, 46, 55, 60 EX720, 32, 40, 46, 55 EX723
RM-GD019
7-times blinking
3-2-8. 7-times blinking (Temperature Error)
3-2-9. 8-times blinking (Software Error)
8-times blinking
7-times blinking
Setting Circumstance
S t t
th
N
8-times blinking
If the Symptom
NG
Yes
g
Is OK? Temperature,
Ventilation, etc.
Set to another
location, etc.
No
If the Symptom
Improved by changing
the WIFI module
B* Board
NG
Symptom
Panel
NG
Change B* Board,
and Aging a few hours
WIFI Module
improvement
B* Board
Symptom
improvement
Note: B* Board
Size
B* Board
Type
32
BAT-V
40
BAT-V
46
BAT-V
29
55
BAT-V
60
BAT-V
Trouble Shooting
KDL- 32, 40, 46, 55, 60 EX720, 32, 40, 46, 55 EX723
RM-GD019
10-times blinking
3-2-10. 10-times blinking (Emitter error)
POWER (Green) blinking
3-3-1. Non-Stop blinking (Power (Green) LED)
3-3. Power (Green) LED Blinking
10 times blinking
Check
h h
b
NG
Check
the harness between
the G* board and
harness
NG
OK
the harness between
the T-con board and
the HEM2 board
harness
NG
OK
NG
the G board and
Panel
T-CON board
NG
Change HEM2 Board
Symptom
Panel
Check Panel
OK
HEM2 Board
Symptom
improvement
Check G* board
OK
G* Board
NG
B* Board
Note: B* and G* Board
Size
B* Board
Type
G* Board
Type
32
BAT-V G10A
40
BAT-V
G4B
46
BAT-V
G5D
55
BAT-V
G6A/G8A
3
0
55
BAT V
G6A/G8A
60
BAT-V
G6A/G8A
Trouble Shooting
KDL- 32, 40, 46, 55, 60 EX720, 32, 40, 46, 55 EX723
RM-GD019
No Picture
3-4. No Picture
3-4-1. Except HFR Model (not applicable for this model)
about 5V ： 22”(WXGA)Model
Press HOME Key.
XMB（Menu）
No
Replace
LCD Panel
NG
Check
BL ON at JL6018
BL_ON：H
Check
PANEL_VCC
Yes
about 12V : ex ： 22”(WXGA)Model
XMB（Menu）
displayed?
B* B
d
Yes
the LVDS Harness
(T-con)
BL_ON at JL6018
on the B* Board
BL_ON：L
at JL6004
on the B* Board
No
G* B
d
Symptom
improvement
B* Board
Harness
(LVDS)
Replace Harness
(Between G* Board
t B* B
d)
Harness
（G* to B*)
G* Board
Symptom
improvement
to B* Board)
（
)
NG
Change B* Board)
G* Board
NG
Symptom
B* Board
Symptom
improvement
3
1
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