lhkb

Yamaha's own library;
http://www.yamaha.co.jp/manual/english/index.php

D/L's here too;

http://www.eserviceinfo.com/ (A-Z)

http://www.theanalogdept.com/manuals.htm (Thorens)

Bolly.
Thanks for the link(s). I was able to identify a board on a recently acquired non-working 9090DB. Gives me an idea of what I want to do with it.

Wade's Collection of Schematics and Links

Consumer Audio Information Schematics

Free Information Society - Audio Electronic Circuit Schematics

Service manuals and schematics

Link

Jim

Vintage McIntosh manuals and schematics

- JP