Km here's the latest info that I have: I think that Boelen Electronics is the contact you need for this job.
EAD was acquired by Alpha Digital Technologies, somehow associated with Tara Labs.
Their Ashland Oregon # is 541-488-5209.
For DAC board repairs refer to Boelen Electronics back in Iowa where EAD originated.
The # is 641-469-5092 & Greg Palma is the man you want there.
For Pioneer CD mechanism repairs refer to Dando Electronics in Kansas City, MO.
(816) 361-6733 which will be more cost effective.