Times Blinking - Sony KDL-22CX520 Service Manual

Self Diagnostic Function
3-2-2. 3-times blinking( DC Alert & Audio Error)

3-times blinking

Check D+1.2V at Check D+1 2V at
on the B* Board
OK
Check +3.3V_MAIN
at JL9234 on
the B* Board
Speaker Impedance
at SP Connector at SP Connector
OK
DC_ALERT
NG
F6001,IC6005,etc
JL6007
(B* Board)
NG
F6003,IC6003,etc
(B* Board)
OK OK
AUDIO
Check
NG
Speaker
AUDIO
Check AUDIO+12.5V
NG
at pin 8/9 of
CN6001 on
the B* Board
OK
Check +12.5V
NG
F4601,IC4601,etc
at F4601 on
the B* Board
OK
IC4601,etc
(B* Board) (B Board)
Segment
P-2
P-2
P-2
P-2
-11-
KDL- 22, 32, 40, 46 CX520
RM-GD020, RM-CD013
KDL-32, 40, 46 CX523
G* Board
(B Board) (B* Board)
Size B* Board Type
22 BAT-S
32 BAT-V
40 BAT-V
46 BAT-V
RM-GD020
G* Board Type
GD1
G2A
G2B
G3