IIRC the 24 V regulator used to go bad on these. Its on the side
behind the tuner. Also be sure the main filter can has apx 130 VDC on at least one terminal. Regulator transistor should have apx 24 VDC on all 3 legs.
For a manual look for the chassis number inked on the chassis. Format is
##TS9## or TS9##. Good luck.
73 Zeno
LFOD !