KDL-32R400C, KDL-32R403C, KDL-32R405C, KDL-32R408C, KDL-32R410C, KDL-40R450C, KDL-40R453C, KDL-40R455C, KLV-32R412C - Sony TV Service Manual (repair manual). Page 15

Read Sony KDL-32R400C / KDL-32R403C / KDL-32R405C / KDL-32R408C / KDL-32R410C / KDL-40R450C / KDL-40R453C / KDL-40R455C / KLV-32R412C Service Manual online

Troubleshooting
3-3. Standby LED Blinking
3-3-2. 3 times blinking
START
Remove
Speaker Connector 
at CN4001 & perform
No 3x blinking
Check Speaker harness 
And Speaker impedance
Speaker Impedance 
≠ 6~8 Ω
3x blinking
at CN4001 & perform 
AC OFF - ON
Ch
k
ti it
3x blinking
And Speaker impedance
Change 
Change
3x blinking
No connectivity of F4000
No connectivity for speaker harness
Check connectivity 
of F4000
3x blinking & F4000 OK
Speaker 
Harness
Change 
Speaker
Connect back
3x blinking
No connectivity of F4000
F4000 broken, 
Replace F4000
Audio IC problem,
IC4001 damage
& perform AC OFF  ON
Connect back 
Speaker Connector
to CN4001
& perform AC OFF - ON
No 3x blinking
Change B* 
board
DONE
15

Display

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