Discussion about the Korg PolySix synthesizer

Thanks in advance for reading... 

I was lucky enough to recieve a polysix with a battery leakage 
problem... removed the battery and retraced the board.  The keyboard 
sounds AMAZING first of all... but there are still some problems 
with it.  Everything worked... 'okay' before i did the retracing and 
after replacing a couple of IC's.   But unfortunately now, it seems 
that VCA, Effects section, and the ADSR on the voicing does not 
work.  But the ADSR on the filter section does work.  I am confused 
as to what is going on.  (Forgive me if i am a little vague on the 
actual ICS replaced.. but they were the 7408's closest to the 
battery.  In anycase... does anyone have any suggestions to look 
for?   Does the VCA, ADSR and effect section lead to a single 
section on the KLM367 that I need to look further into replacing 
components etc?  Any help would be apprectiated.

Forgive me, I don't have the schematics with me, but i do have the 
orginals at work, so I can follow IC #'s.

Thanks in advance again...

Jay