Discussion about the Korg PolySix synthesizer

If you cant tune your P6 then it is probably the OPTO on the 
filter/Osc pcb. I've fixed about 5 of these units and this is always 
the problem

--- In PolySix@yahoogroups.com, "martinwigy" <martinwigy@...> wrote:
>
> Hi,
> 
> I've recently acquired a Korg Polysix (mk 2 with no KLM-396 board),
> which was in pretty bad shape. I've changed the battery, which 
luckily
> had barely leaked at all, and recalibrating it has gone fairly
> smoothly. However, I've run into some trouble tuning it.
> 
> The problem seems to lie with VR2 on the KLM-366 board (the overall
> High Freq. tuner). It doesn't cause any change in pitch when it is
> turned, although having checked it with a multimeter, it appears to 
be
> working fine. As a result, I have had to use VR11 on its own and can
> never get the pitch of any oscillator lower than a top C#.
> 
> I have seen other reports of this sort of problem, although no
> solution. All other controls seem to work as expected, and I have 
been
> able to get the lower 3 octaves more or less in tune with each 
other,
> although not to the expected pitches.
> 
> Any ideas?
> 
> Thanks in advance,
> Martin
>