Ok, then the micro is likely just plain bad....
I want to make sure that when you unplugged it to reset it, that you unplugged it for a FULL 5 minutes.
It takes that long for the power supply to drain its standby voltage off so the Micro will actually turn off and reload its start up programming.
If you have let it stay unplugged that long, let me know.
The next thing we will need to do is actually look at your TV's main board.
There's 4 main boards for your TV set, and we need to get the correct code number so we can search for suppliers.
Make sure you've unplugged it for 5 minutes. If it doesn't work, then take the TV, lay it on a padded table face down so you can remove all the screws on the back. Pull the cover off, and I'll get you information on where the code number is ***** the board.