Discussion about the Korg PolySix synthesizer

Hi everyone, I just recently found this group and I think its great. 
I have had my Polysix for about six months and have had nothing but
problems, such as battery leakage damaging the circuit traces and
blown ICs.  Now that these problems have been fixed I need to get it
in tune.   Any advice on how to do this on my own would help, because
I really don't want to put more money into repairs and I really want
to use the keyboard.  

Thanks,
Chris