Troubleshooting 12 Blinks Failure
Blink
List of boards likely to cause this symptom.
Code
No.1
No.2
No.3
No.4
12
Speaker/
A
Blinks
Subwoofer
Start Here
Unplug the TV and remove connector A12 from the A board. Plug in the TV and turn it on
Is the TV still
No
Yes
shutting
down with 12
blinks?
Disconnect the speakers
one at a time to determine
which one is bad
Replace the A
board
Slide