Hi Bill,I did a Google search on the web and came up with zero on a free schematic for you.
The only source that I found that carried your schematic is at Alta Vista audio, the designer of Counterpoint.
After seeing what he wants for one of his product sevice manuals, that include the schematic. I can see why you are searching the web.
Possibly you could find a competent technician to repair your unit for close to the price of a service manual.
Here is the link if you are interested in buying one of his manuals.
I wish I could help!
Good luck
Norris Wilson