midi/polysix and v.tight budget don't go together.
unless you are well versed with electronics, and can build your own
midi-kit from schematics on the web. if you were that good, you
wouldn't be asking us what's wrong with your p6.
I got one... don't have it with midi, don't need midi for it.
as for what's wrong... it could be anything, but the one thing that
happens most often is that the internal back-up battery leaks and
erodes many of the circuit traces on that board. Of course, that's
the CPU board, and without that, nothing will work, or it will work
very poorly.
I'd check that first.
http://www.oldcrows.net/~oldcrow/synth/korg/polysix/index.htmlScott's site. he's the guru here.
This is the information that I used to fix mine. Actually, mine had
already been fixed, but they missed some stuff, so several things
didn't work quite right. I think I still got more fixing to do, but
it's good enough for me.
You wanna open it up and check the center board.. KLM-367.. the one
with the big battery on it.
check the site above, and proceed from there.
Scott's site holds your hand as you go, so you shouldn't have to spend
more than 20 dollars to fix it (if you already have a soldering iron,
knock the price down to 5 dollars) (4UKP).
have fun!
-chromatest