Panasonic TC-P50ST50 - Troubleshooting 1, 9, 10, 13 Blinks Failure

Troubleshooting 1 -9 -10 - 13 Blinks Failure
When 1, 9, 10, or 13 blinks occur, replace the A board
Blink
Code
List of boards likely to cause this symptom
No.1 No.2 No.3 No.4
1 A Board
9 Blinks A Board
10 Blinks A Board
13 Blinks A Board
Slide 9