Help for Cello Audio Pallete malfunction


After about one year of not using my Cello Audio Palette MIV,
when I finally reconnected into my system it played fine for the first 10 minutes and then it turned itself off.That has happened about 5 times.I finally gave up.Does anyone have any idea what could have happened.Finally does any one know of any repair service or an individual who would know how to repair the unit.In the past I used Cello Germany however they are no longer around.I live in Potomac,Maryland and would greatly appreciated any responses.Thanks
ramy
Al,thank you for your inputs,I have tried Cello systems,they never answer their phone nor do they return calls.I am now trying to reach Dick Burwen.When all fails I will try Mark Levinson,

I have a colleague friend who has repaired these, Trevor at Rage Audio. Google Rage Audio. He should be able to give some tips on what goes wrong with them. 


Cheers George