Discussion about the Korg PolySix synthesizer

change the opto on the filter pcb, I'll put money on it

--- In PolySix@yahoogroups.com, "sdlarch1" <sdlarch@...> wrote:
>
> I am having a terrible time tuning my PolySix.  I can get all 6 banks 
> in tune with each other no problem.
> 
> I cannot get C0, C3, and C6 in tune at the same time.  To keep 
> consistency, I checked each C on the same bank.
> 
> I've been through the calib procedure to no avail.
> 
> Can someone guide me to a potential point of failure?
>