I'm not in Tennessee so I don't know who to recommend.
Can you contact the manufacturer and see if they can recommend an authorized repair shop?
Probably most any TV/Radio repair shop can take a look at it, but they'd charge you for looking for a schematic for the unit, and
an authorized repair shop for that manufacturer would already have access to a schematic.
I don't know how big the unit is, but the manufacturer might recommend shipping it out of state for a repair.
If that becomes the case, you might be able to just sent them the printed circuit boards to save on shipping costs.
Have you Google'd the make and model of your machine to try to find somebody who works on them in your area?