KDL-40NX720, KDL-40NX723, KDL-46NX720, KDL-46NX723, KDL-55NX720, KDL-55NX723, KDL-60NX720, KDL-60NX723 - Sony TV Service Manual (repair manual). Page 13

Read Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 Service Manual online

3-2-2.  3-times blinking( DC Alert & Audio Error)
KDL- 40, 46, 55, 60 NX720
RM-GD019
KDL- 40, 46, 55, 60 NX723
RM-GD019
Troubleshooting
3-times blinking
Check D+1 2V at
Check AUDIO+12.5V
at pin 8/9 of
CN6001 on
the B* Board
G* Board
DC_ALERT
AUDIO
NG
Check D+1.2V at
JL6007
on the B* Board
F6001,IC6005,etc
(B* Board)
Check +12.5V
at F4601 on
F4601,IC4601,etc
(B* Board)
NG
OK
OK
NG
Check +3.3V_MAIN
at JL9111 on
the B* Board
F6003,IC6003,etc
(B* Board)
the B* Board
(B  Board)
IC4601,etc
(B* Board)
NG
OK
OK
Speaker
Check
Speaker Impedance
at SP Connector
(B  Board)
OK
AUDIO
NG
at SP Connector
OK
Segment
Size
B*
Board 
Type
G*
Board 
Type
3a-1
40
BAT-L
G4BW
3a-1
46
BAT-L
G5AW
-12-
3a-1
55
BAT-L
G6AW
3a-1
60
BAT-L
G6AW
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