I don't know if the OP got an answer to his question two years ago, but does anyone know what the most common reasons are why a Poly 800 won't power up? I notice that they sell Q1, the power-supply transistor, at Syntaur, so I'm assuming that's a part that goes bad often.
I'm asking because I have a couple of Polys that won't power up.
If anyone has any insight, I'd appreciate it.
Thanks and Happy Holidays!
Aaron