hifi engine

Technics RS-T24-KMC Cassette Deck, SonyTC-FX600 Tapecorder and Rotel RX1603 receiver

I would like service manuals for all three of the above please.
For the Technics RS-T24 deck does anyone know the identity of the
3 wire power input. Values on each wire. Want to test this deck
and do not have the amp to power it. Thank you in advance for any help.