Discussion about the Korg PolySix synthesizer

Thanks guys, very helpful info. I appreciate it!




--- In PolySix@yahoogroups.com, "Andrew Jury" <andy@...> wrote:
>
> Hi,
> 
> I tend to agree with CJP! The appegiator in the P6 is controlled by a 
> NE555 timer chip located on the KLM-371 board. Check the values of 
> capacitors C1, C2, C3 and C5 which deal with the timing. Also check 
> the setting of variable resistor VR1 as per the calibration section 
> of the service manual. I am of the opinion that the PSU is probably 
> outputting the right voltages as other weird things might be 
> happening too. The 555 timer runs off the +5V rail. So does most of 
> the TTL logic on the processor board (KLM-367)! There is a 
> calibration section in the service manual for the PSU. You'll need a 
> DVM though. If in doubt call in a qualified electronics tech to have 
> a look!
> 
> Cheers,
> Andy
> 
> 
> 
> --- In PolySix@yahoogroups.com, "Chromatest J. Pantsmaker" 
> <chromatest@> wrote:
> >
> > The power supply isn't a store-replaceable item if I remember
> > correctly...   It certainly wouldn't hurt to change out all the
> > electrolytic capacitor in the supply though.
> > 
> > On Thu, Aug 28, 2008 at 11:16 AM, jjmcclear <jjmcclear248@> 
> wrote:
> > > Sorry, I guess I mean power supply. My arp has problems keeping a
> > > consistent speed. Though the power supply might be going bad.
> > >
> > >
> > >
> > >
> > >
> > > --- In PolySix@yahoogroups.com, "Chromatest J. Pantsmaker"
> > > <chromatest@> wrote:
> > >>
> > >> Amp?  what do you mean by Amp?
> > >>
> > >> On Thu, Aug 28, 2008 at 10:50 AM, jjmcclear <jjmcclear248@> 
> wrote:
> > >> > Which is it 15, 12, or 5? Could I replace it with a newer one,
> > > maybe from Radio Shack or
> > >> > something?
> > >> >
> > >> >
> > >> > ------------------------------------
> > >> >
> > >> > PolySix "Digiest" Page: 
> http://www.acc.umu.se/~amber/Poly6Yahoo!
> > > Groups Links
> > >> >
> > >> >
> > >> >
> > >> >
> > >>
> > >>
> > >>
> > >> --
> > >> .sig
> > >> -Chromatest J. Pantsmaker
> > >> http://www.chromatest.net
> > >>
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! 
> Groups Links
> > >
> > >
> > >
> > >
> > 
> > 
> > 
> > -- 
> > .sig
> > -Chromatest J. Pantsmaker
> > http://www.chromatest.net
> >
>