Contact Globe Audio. They have been very helpful each time I wanted information about Audio Aero products.
Reason why I ask, is that I sent in my AA Capitole for check up and new tubes. Came back with problems due to shipping. Problem did't sound too different than yours. Powered up, put the disc in closed the top and nothing. No spin, no sound, just looked like it was trying to read the disc, but never got anywhere on the display.
Turned out to be a problem on one of the boards and not at all related to the transport, drive, spindle, etc. . .
Wasn't trying to be a smart A**, just trying to determine what all has been considered. GNSC used to service AA and now it is a company in Arizona (do a globe audio google search or contact Globe - they will give you the contact info).