here were actually a couple different versions used in these models. I could give you a list of part numbers but nothing would be more accurate than opening the TV and getting the part number from the board itself. It's actually a lot easier than it sounds.
Here's how to get the part number:
1-Disconnect the TV power cord, and let the TV sit for 5 minutes.
2-Cover a sturdy table with a blanket,and lay the TV face down.
3-Remove all of the screws from the TV's rear panel (keep them in a bowl!).
4-Remove the TV's pedestal stand, and the rear panel. This should expose the circuit boards.
5-The main board is easy to find. It will be the one with the audio/video connectors on it. The part number is ***** on the board itself.
When you get that part number, search it in Google and purchase a replacement from whoever you like. A local servicer may also be able to order it for you. Once you have it, here's how to replace it:
1-Disconnect the wiring going to the board. It's just clips/harnesses, no soldering or anything like that.
2-Remove the screws that hold the board in place, then remove the board.
3-Reverse that procedure to install the new board.
I really hope that answers your question! Let me know if you need anything else. Oh, and please take a second to rate the service I provided (there should be a 5-star scale on your page somewhere). Don't worry, that won't close your question and you can still respond back at any time.