Audio Precision 2522 - Need Service Manual

Does anyone have the service manual or schematic for the Audio Precision System 2? I can find the System 1 all over the internet, but nothing on the System 2. I've seen a picture of it in a binder, but nothing downloadable including the AP website.
 
Good luck. AP schematics and service manuals are a more closely guarded secret than America's nuclear launch codes.

Your best bet is probably contacting Audio Precision. They probably won't give you the service manual, but they might work with you on solving whatever issue you have.