Other Technics Repairs
Technics ST-8080 Stereo Tuner
This would go quiet intermittently, the dial lights are fed from a separate supply. Checks showed the 12v supply was missing when it happened. For some reason this tuner uses a voltage doubler to generate the supply. I suspected the diodes or capacitors 2x 16V 1000 µF and a 25v 470 µF, changed them and put a small heat sink on the reg transistor, okay after that.
Technics SL-P1 CD Player (1984)
This wouldn't play CD's the traverse rails were jammed with dust, cleaning and lubrication was all that was required.