Does anyone know who can repair a Theta Miles CDP?

I've had my Miles for about 11 years . It still sounds great but sometimes it just stop playing and won't work again till the next day.
I called Theta and they said the people who could repair them are long gone and moved and they won't repair it. Thanks a lot Theta. I don't know what the problem is but I'm hoping its repairable. Can anyone suggest a place to have it fixed? I'm in the DC but will be happy to ship it.