Discussion about the Korg PolySix synthesizer

Alright, I'm really a bassist (so please, bear with me), but over 
the past few years I've gotten into analog synths. To consumate this 
lust, I purchased an old polysix a while back and didn't know what I 
was getting myself into...
  It was only AFTER I bought it that I found out about the battery 
leakage problem. I've opened it, and yeah, she leaked pretty bad. The 
memory was messed up before, but I'm not sure if some of these other 
problems can be totally caused by the battery-

  Manual switch won't work - Switches back to initial sound when I 
flip a select switch or two - Once an effect is on (chorus is the 
only one I can get), It won't change or turn off - 16' 8' 4' knob 
doesn't work (in fact, I think that whole section may be a little 
messed) - The only modulation I can get is vibrato, anything else 
just decreases the volume - Any movement of the attenuator silences 
the instrument... 
  
  These, however, are just the things I can remember. Recently, after 
not using it for a few months, I fired it up and horrible noises came 
out of it when I pressed a key. The note is still in the background, 
but in the fore is, well... if a synth could fart, that's what it 
would sound like.
  Can anybody give me a clue as to if it's the battery alone doing 
this or what? Besides getting the battery/board replaced, what else 
can be done?

Scott Frenchek