User Manual for Marantz ST-63 Tuner

Does anyone know where I can find a user manual guide for older Marantz equipment. Marantz HQ does not want to know about older equipment at all. Any help/advice would be greatly appreciated.
There us a sister site to, I think it is There are some manuals there. Check it out.
Tried and there are lots of manuals there, but none for the Marantz ST-63 unfortunately. Thanks for pointing me in that direction. Will keep trying.