Discussion about the Korg PolySix synthesizer

I checked all the connectors, changed 2 ics near the battery and it
became much better.

when i turn on the unit the first 20-30 minutes everything works fine,
but when the p6 has completely warmed up, everything sounds total wierd...

are there any temperature sensitive parts that I should consider to
change?  maybe the power supply..?? 

btw: when I don't close the lid, everything is ok.

thanks for your help.

mat


--- In PolySix@yahoogroups.com, "analog_audio01" <analog_audio01@...>
wrote:
>
> thanks,
> 
> I'll try that, but I think it's not a connector problem,
> when I switch the polysix on, everything is fine for a few minutes,
> then these strange modulations starts... like you can hear in the mp3
> 
> mat
> 
> --- In PolySix@yahoogroups.com, "Chromatest J. Pantsmaker"
> <chromatest@> wrote:
> >
> > Did you check the continuity of the board connectors?  I've seen
> > corrosion inside the connectors.  Just do a simple continuity check
> > from the board on one side of the connector, to the other board on the
> > other side of the connector...  The traces might be fine, but if the
> > voltages can't get to the traces, your sol.
> > 
> > On 6/21/07, analog_audio01 <analog_audio01@> wrote:
> > > ok, I checked the klm361 (digital pcb)
> > > all traces and thru-holes in the battery section are ok...
> > > I measured them with my multimeter.
> > >
> > > I made a sound example so that you can listen how bad my poly6
sounds:
> > >
> > > http://www.cmaudio.net/poly6prob.mp3
> > >
> > > as I wrote earlier in my thread the problem is on the klm 361 pcb (I
> > > interchanged it with the board from a working p6 and then it was
> fine...)
> > >
> > > I think the dc voltage from the digital board are not clean..
> > > I already changed all electrolytic caps, but what should I do next?
> > >
> > > change some ics?
> > >
> > > or borrow a scope and measure the pins at the connectors?
looking for
> > > some voltages that could cause this modulations??
> > >
> > >
> > > thanks for your help
> > > mat
> > >
> > >
> > >
> > >
> > >
> > > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > 
> > 
> > -- 
> > .sig
> > -Chromatest J. Pantsmaker
> > http://www.chromatest.net
> >
>