Solved! I need a power switch for technics SU-Z780

[lucky man]

I need a power switch for technics SU-Z780

 

[americanaudiophile]

You can download the service manual here.
https://elektrotanya.com/technics_su-z780.pdf/download.html
It may not be available anymore. You could bypass it and use an external switch to turn the AC on and off. It could even be done by voice control.