Sony KDL-46HX920 / KDL-46HX923 / KDL-46HX925 / KDL-55HX920 / KDL-55HX923 / KDL-55HX925 / KDL-65HX920 / KDL-65HX923 / KDL-65HX925 Service Manual ▷ View online
SECTION 3
TROUBLESHOOTING
KDL- 46, 55
H
X920, 46,
55
H
X923 , 46, 55
H
X925
RM-GD017
3-1. Power Problem
3-2-1. 2-times blinking (Main Power Error)
3-2. Standby LED Blinking
No Power
Turn on the Switch
Check
*Power Saving Switch
SW OFF
2-times blinking
Ch k REG12V t
Check STBY 3.3V
at 10 pin of CN6001
G* Board
Replace the Harness
Between G* Board and
NG
NG
SW ON
Check REG12V at
pins 2/3 of CN6001 on
the B* Board
G* Board
Replace the Harness
Between G* Board and
B* Board
NO 12V
12V OK
NG
Symptom
on the B* Board
B* Board
OK
B* Board
Harness
y p
improvement
Symptom
improvement
Size
B* Board
T
G* Board
T
Harness
B* Board
Note: B* and G* Board
Type
Type
46
BAT-L
G5B
55
BAT-L
G6B/G7D
65
BAT-V
G11/G12B
*Power Saving Switch：Only for BAT-L model
(2b-1,2b-2,3a-1)
(
,
,
)
12
Trouble Shooting
KDL- 46, 55
H
X920, 46,
55
H
X923 , 46, 55
H
X925
RM-GD017
3-2-2. 3-times blinking( DC Alert & Audio Error)
3-times blinking
Check AUDIO
+12.5V at pin 8/9 of
CN6001 on
G* Board
DC_ALERT
AUDIO
NG
Check D+1.2V at
JL6007
on the B* Board
F6001,IC6005,etc
(B* Board)
the B* Board
NG
OK
Check +3.3V_MAIN
JL9234
F6003 IC6003 etc
Check +12.5V
at F4601 on
the B* Board
F4601,IC4601,etc
(B* Board)
OK
NG
NG
at JL9234 on
the B* Board
F6003,IC6003,etc
(B* Board)
IC4601,etc
(B* Board)
OK
AUDIO
OK
Size
B* Board
Type
G* Board
Type
Speaker
Check
Speaker Impedance
at SP Connector
AUDIO
NG
Note: B* and G* Board
46
BAT-L
G5B
55
BAT-L
G6B/G7D
65
BAT-V
G11/G12B
OK
13
Trouble Shooting
KDL- 46, 55
H
X920, 46,
55
H
X923 , 46, 55
H
X925
RM-GD017
3-2-3. 4-times blinking (LED Error)
4-times blinking
Check
PANEL_FAIL at
JL6017
on the B* Board
B* Board
Below 0.84V
Between 0.84V to 2.65V
Change G* Board
G* Board
Symptom
improvement
Change G Board
G* Board
NG
Change LED
Driver Board
LED Driver Board
Symptom
improvement
Note: B* and G* Board
Size
B* Board G*
Board
Panel
Type
Type
46
BAT-L
G5B
55
BAT-L
G6B/G7D
65
BAT-V
G11/G12B
14
65
BAT V
G11/G12B
Trouble Shooting
KDL- 46, 55
H
X920, 46,
55
H
X923 , 46, 55
H
X925
RM-GD017
3-2-4. 4-times blinking (Including SPI Error)
4-times blinking
4 times blinking
Check
PANEL FAIL at
Below 0.84V
Symptom
improvement
PANEL_FAIL at
JL6017
on the B* Board
B* Board
Between 0.84V to 2.65V
S
t
Change T-CON Board
T-con Board
Change G* Board
G* Board
Symptom
improvement
Change
LED Driver Board
LED Driver Board
Symptom
improvement
NG
Panel
NG
LED Driver Board
Check the harness between
the T-con board and
NG
Panel
the T con board and
the LED driver board,
between the G board and
the LED driver board.
Harness
Note: B* and G* Board
Size
B* Board G*
Board
Type
Type
46
BAT-L
G5B
55
BAT-L
G6B/G7D
65
BAT-V
G11/G12B
15
65
BAT V
G11/G12B
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