Sony KDL-32R320C Service Manual page 41

3-3-2. 3Times Blinking
No connectivity of F4000
F4000 broken,
Replace F4000
Debug NG B*2-Board
Refer "Audio IC
Normal Operation
Condition – B*2-
Board"
KDL-32R320C/325C/327C, 40R375C/377C
START
3x blinking
Remove
No 3x blinking
Speaker Connector
at CN4001 & perform
AC OFF - ON
3x blinking
3x blinking
Check connectivity
of F4000
3x blinking & F4000 OK
Audio IC problem,
IC4001 damage
Change
B*2 board
DONE
Check Speaker harness
And Speaker impedance
No connectivity for speaker harness
Change
Speaker
Harness
Connect back
Speaker Connector
to CN4001
& perform AC OFF - ON
No 3x blinking
TROUBLE SHOOTING
Speaker
Impedance ≠ 6~8 Ω
Change
Speaker
Size B* Board Type
32"
BA2
40"
BA2
41