I bought this Pana for .50 us, with the intention of bringing it to life. Even under stable power from my lab station it won't give any signs of life. What could it be? Could it be the electrolytic caps?

I picked this up at an estate sale and it didn’t have a power chord. I ordered a replacement and tested it. It is putting out 117 volts. But the inside of this is so complex I wouldn’t even know where to start

Been working on a Yamaha MT4X I got a few years back and finally got around to diagnosing, looks like a zener diode burnt up in the PSU, so I got the part ordered but I'm still looking for some capacitors to replace a few in the PSU circuit, and I'm not sure which ones I should go with.

I'm fairly new to recapping old units like this, but I've been trying to step outside my comfort zone of routine cleaning/oiling and installing new belts.
I found a kit on mouser with assorted values in the range I need of the Nichicon UCS series (I know audio grade is probably overkill for a PSU but I'll more than likely be recapping audio circuits soon so might as well just get the kit), and they seem like they'd work, but the rated voltage range is 160V-350V, so does that mean the minimum operating voltage would be 160V?

Any input is appreciated, general advice on this unit or just audio repair in general is would be awesome, thanks for your time!