Discussion about the Korg PolySix synthesizer

Have you checked the IC and cable contacts ?

--- In PolySix@yahoogroups.com, José Pereira 
<jose.gouveia.pereira@n...> wrote:
> Hi
> I know it's the polysix group but there's  a lot of tech people 
around who
> could possible give me some clues...
> My Poly 61 at start up freezes with the initial message "PS 61" in 
the
> display.
> I replaced the internal battery, but the malfunction continues.
> I replaced all the boards with one other damaged Poly 61, except 
the CPU
> board.
> I also replaced the 2 chips CPU IC - 8049 from other CPU board.
> Can't replace the CPU board because the other one I have is 
corroded by a
> leaking battery...
> This take me to conclude for a damaged CPU board (KLM 509 - new 
production).
> Am I wrong?
> Does anybody have any suggestion?
> Do you have one of those in stock (KLM 509)?
> Let me know, please.
> Thanks and best regards.
> José
> portugal
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "dotwav" <rob19@e...>
> To: <PolySix@yahoogroups.com>
> Sent: Monday, February 23, 2004 3:16 PM
> Subject: [PolySix] Warming up time....(and a service)
> 
> 
> > Hello again all...
> >
> > Finally got a SSM2056 chip for my P6 which fixed the annoying 6th
> > note enigma I was having, it's good to hear all notes play 
normally
> > now.
> > That said, once I got going, I noticed that little response was 
had,
> > from altering most of the knobs (the VCO section, is the only 
thing
> > that made any difference). Playing about through all the patches, 
I
> > got very little change (hardly any) when altering the FILTER, EG 
or
> > MG sections.
> > Wondering what had changed, I put the faulty SSM2056 back in, but
> > the same thing happened.New chip back in........
> >
> > I then wthought,  did it need warming up? so I left it fo 20 mins,
> > but no change, however, this morning, I went out, and switched it
> > on, come back 5 hours later, and it's warmed up, the cutoff knob
> > works well enough, the resonance does work (but I don't think
> > fully), most other knobs work (though some don't seem to do
> > anything, some of the time - I think maybe the way a current patch
> > is setup, that particular knob changes don't make any 
difference)..
> >
> > Two thoughts, how long should it take to warm up, how long does
> > yours take.....?   Does this need a service, can it 
be "calibrated"
> > so that it works much better, or should I expect this from now on.
> > (I've tried pulling all the IC's that I can, and re-seating them)
> >
> > Last thing, any recommendations for a UK service/repair man. Tony
> > Allgood has said he's too busy at the moment, I looked at music
> > control website, which diverted me to cimplesolutions, who told me
> > they don't repair classics like the P6, the only other one I 
thought
> > of was synth-restore, but I emailed them 3 weeks ago, and didn't 
get
> > a reply. I have seen old crows web site, with a guide on how to do
> > the job, but I don't own an oscilloscope, and I don't want to make
> > it any worse, so would prefer putting it in the hands of someone 
who
> > knows what theyre doing.
> >
> > Thanks for your previous help..
> >  cross modulated  Rob
> >
> >
> >
> >
> > PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >