Discussion about the Korg PolySix synthesizer

Thanks for the responses all! I must say, I have not been as involved
with my P6 as I should be the past couple years. It's my first analog
synth and so it has a special place in my heart :) This is all a
disclaimer, becuase I don't know all that much about it.
1) The synth was given adequate time to warm up. I feel like the pitch
is too far off for that to be an issue anyway.
2) Like I said, unfortunately, I don't use it as often as I would like
to! I've made sure it's in a case with desiccant to prevent humidity
problems.
3) The melodica was in tune, as well as a guitar I have which was
tuned by a computerized, onboard amp feature.
Now, in regards to the tuning, it is universally, across the "board",
as it were, out of tune. So, when tuning, rather than it being say, a
solid 440Hz it's probably a step and a half below that.
I guess the question running through my head last night was, "Jeeez. I
just tuned this to a perfect pitch 5 years ago using the guidelines I
found here in this forum. Is it possible it went that out of whack and
just needs to be tuned or should I be worried about something else?" I
know, it's a vague question in all regards and I should really
investigate further to provide more details before I post more
questions ;) Again, though, thanks to everyone listening to me complain!
Before I begin to recalibrate, are there any special precautions I
should take? And do you all think that is a good next step to take and
that I should just keep an ear on it after that?
Much obliged!



--- In PolySix@yahoogroups.com, "Andrew Jury" <andy@...> wrote:
>
> Hi,
> 
> Can you tell the panel of esteemed experts here whether your P6 is 
> uniformly out of tune or are there regions of the keyboard which are 
> worse than other?
> 
> As CJP says these old analogue circuit are prone to drift when the 
> tollerances of the components start to change over time. If the tuning 
> knob is hard over to either the left or right this certianly is well 
> out of the original design parameters. There are special procedures 
> outlined in the service documentation for recalibrating the P6. Also 
> there are articals ad infinitum in this group which mention tuning 
> faults which can occur to the opto-coupled feedback arrangement on the 
> key assigner board.
> 
> Cheers,
> Andy
> 
> 
> --- In PolySix@yahoogroups.com, "goxflee" <goxflee@> wrote:
> >
> > I tuned my Polysix about 5 years ago. The other night, trying to tune
> > up to a melodica, which is in correct tuning, I had to turn the tuning
> > knob all the way to the left and even turn the pitch wheel up a bit to
> > get it in standard tuning. Is this to be expected, do I simply have to
> > get in there again and fiddle with the internal tuning posts or do I
> > have a bigger problem? Thanks for the input!
> >
>