I've had very good luck with this guy, and he's definitely into vintage electronics. He does repair TV's, but he also doubles as a pro audio repair guy, and his shop is full of all kinds of gear, including turntables, tape decks and reel to reel stuff. You walk in the door to his shop, and the walls are decorated with vinyl album covers.
Morrell Electronics
22770 Orchard Lake Rd
Farmington, MI 48336
248-474-1591