Troubleshooting; Power Problem; Standby Led Blinking; Times Blinking - Sony KDL-22CX520 Service Manual

3-1. Power Problem

No Power
SW OFF
Check
** Power Saving Switch
SW ON
Check STBY 3.3V
NG NG
at 10 pin of CN6001
on the B* Board
OK
B* Board

TROUBLESHOOTING

Turn on the Switch Turn on the Switch
Replace the Harness
NG
Between G* Board and
B* Board
Symptom
improvement
Harness
**Power Saving Switch：Only for BAT-L model
Segment
P-2
P-2
P-2
P-2
SECTION 3

3-2. Standby Led Blinking

3-2-1. 2-times blinking (Main Power Error)

2-times blinking

Check REG12V
at pins 2/3 of
CN6001 on
the B* Board the B* Board
G* Board
12V OK
B* Board
Size B* Board Type G* Board Type
22 BAT-S
32 BAT-V
40 BAT-V
46 BAT-V
-10-
KDL- 22, 32, 40, 46 CX520
Replace the Harness
NO 12V
Between G* Board and
B* Board
Symptom
improvement
Harness
GD1
G2A
G2B
G3
RM-GD020, RM-CD013
KDL-32, 40, 46 CX523
RM-GD020
NG
G* Board