@atmasphere They were not. I believe it was just a clean and check/replace rollers and belts, so it was just the minimum.
I'd love to send it for a complete check, but I have no clue what that might cost. Any idea on that?
This deck was made for only 1 year, 1991. The non-Limited version is the same and was made 1990-1993. Far as I know the only difference was the silver color and the Limited badging.
Thanks again all for the feedback.