Looking for a part number for a 3.3V SOS: D Board _ DN Board _ DA Board, panasonic tc-p65vt50

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
https://homenol.blogspot.com/
https://elektrotricks.blogspot.com/
Blinking codes details to many popular brand TVs are given. If blinks continue without any pause, the main board is faulty. Search the sites by type in the brand name to your set, in its search box on the right side. View it on a desktop or in web View.. Mobile view has no search box.

If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

http://service.us.panasonic.com/OPERMANPDF/TCP42C2.PDF
you need a new ss board,


blimking light diagram,

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.
If blinks continue without any pause, the main board is faulty.

Visual of board may give clues like a puffet top or end of a cap. other parts may look like they have been hot.

11 blinks? Fan SOS PB Board. Check for these. For more information, check these links. http://electro-medical.blogspot.com/
http://electrohelponline.blogspot.com/

are you certain its 11 blinks?

thought I would post this here for everyone.

1 blink STV 5v sense DG Board

2 blinks 15v SOS D Board

3 blinks 3.3v SOS D Board

4 blinks Power SOS P Board

5 blinks 5v SOS D Board

6 blinks Driver SOS 1 SU / SD / SC Boards
(SC energy recovery circuit)

7 blinks Driver SOS 2 SU / SD / SS Boards
(SC floating voltage area)

8 blinks Driver SOS 3 SS Board
(SS energy recovery circuit)

9 blinks Panel Config. SOS

10 blinks Sub 5v SOS / Main 3v SOS DG Board
DTV 9v SOS / Tuner Power SOS

11 blinks Fan SOS PB Board

12 blinks Sound SOS H Board

13 blinks Communication error DG Board
with IC8001 (Pesks Lite 2)