Discussion about the Korg PolySix synthesizer

Hello,
Every suggestion from everyone given to me (thanks) I have tried but 
still no sound.
The problem seems to be in the 8048 processor on KLM367. The 
outputsignal on pin 19 (DB7) has his pattern but some levels are 
higher than + 5 volt, it looks like an open line (not terminated), 
when I pull down it (10 k) it's gone but why??
So I'm thinking on replacing the processor and asking is this still 
for sale somewhere (or replacement).
Please give me suggestions (where to buy).
Thanks,
Han.
--- In PolySix@yahoogroups.com, "FRANK SPANO" <fspa8724@m...> wrote:
>
> Thanks, I'll try that
> 
> 
> >From: "lnz2166" <lnz2166@y...>
> >Reply-To: PolySix@yahoogroups.com
> >To: PolySix@yahoogroups.com
> >Subject: [PolySix] Re: Polysix no sound
> >Date: Tue, 06 Dec 2005 06:59:25 -0000
> >
> >
> >
> >
> >
> >This might sound trivial but is your power supply output all in
> >
> >check. In addition have you checked the the solder pads on the 
power
> >
> >connectors. I had and issue with one poly6 where the 15v solder 
pad
> >
> >on the connector was lifted. Also do a sanity check and make sure 
you
> >
> >chips are all getting proper voltages. Check old crows site for a
> >
> >scanned service manual.
> >
> >
> >
> >http://www.oldcrows.net/
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >--- In PolySix@yahoogroups.com, "FRANK SPANO" <fspa8724@m...> 
wrote:
> >
> > >
> >
> > > I have a similar problem. Does anyone have a scanned service 
manual
> >
> >I can
> >
> > > get emailed? Greatly appreciated
> >
> > >
> >
> > >
> >
> > > >From: "gil_we" <gil_we@y...>
> >
> > > >Reply-To: PolySix@yahoogroups.com
> >
> > > >To: PolySix@yahoogroups.com
> >
> > > >Subject: [PolySix] Re: Polysix no sound
> >
> > > >Date: Mon, 05 Dec 2005 08:56:38 -0000
> >
> > > >
> >
> > > >
> >
> > > >
> >
> > > >
> >
> > > >
> >
> > > >I think the service manual have this information...
> >
> > > >
> >
> > > >
> >
> > > >
> >
> > > >--- In PolySix@yahoogroups.com, "hansomchaam" 
<hansomchaam@y...>
> >
> > > >
> >
> > > >wrote:
> >
> > > >
> >
> > > > >
> >
> > > >
> >
> > > > > Thanks for reply, I fixed the battery problem as described.
> >
> > > >
> >
> > > > > I checked (again) all connections/signals with an 
oscilloscoop.
> >
> > > >
> >
> > > > > I don't see any output, also no gate signals when key-
stroke on
> >
> >ic5
> >
> > > >
> >
> > > > > KLM-366.
> >
> > > >
> >
> > > > > What shape must be on TP2 KLM367?
> >
> > > >
> >
> > > > > Thanks for your help.
> >
> > > >
> >
> > > > > Han
> >
> > > >
> >
> > > > > --- In PolySix@yahoogroups.com, "gil_we" <gil_we@y...> 
wrote:
> >
> > > >
> >
> > > > > >
> >
> > > >
> >
> > > > > > How are the main voltages ? Has the battery leaked ?
> >
> > > >
> >
> > > > > >
> >
> > > >
> >
> > > > > >
> >
> > > >
> >
> > > > > > --- In PolySix@yahoogroups.com, "hansomchaam"
> >
> ><hansomchaam@y...>
> >
> > > >
> >
> > > > > > wrote:
> >
> > > >
> >
> > > > > > >
> >
> > > >
> >
> > > > > > > Hello,
> >
> > > >
> >
> > > > > > > Again here is a polysix with the "no sound at all" 
problem.
> >
> > > >
> >
> > > > > > > When I measure with oscilloscoop on KLM366 (new) ic 9 
pin 1
> >
> > > >
> >
> > > > > there
> >
> > > >
> >
> > > > > > is a
> >
> > > >
> >
> > > > > > > constant pattern but not a 0.5 V/oct. Keystrokes has no
> >
> >effect
> >
> > > >
> >
> > > > > at
> >
> > > >
> >
> > > > > > all,
> >
> > > >
> >
> > > > > > > processor 8049 gives signals on DB0..DB8. Also no 
output on
> >
> > > >
> >
> > > >gate
> >
> > > >
> >
> > > > > > 0...3
> >
> > > >
> >
> > > > > > > = pin 15,10,7,2 ic 5 on keystroke.
> >
> > > >
> >
> > > > > > > Does anyone has suggestions.
> >
> > > >
> >
> > > > > > > Please help me, I look forward to hear the nice sound 
again.
> >
> > > >
> >
> > > > > > > Thans,
> >
> > > >
> >
> > > > > > > Han.
> >
> > > >
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> > > >
> >
> > > >PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
> >
> > > >
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> > > >
> >
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