Discussion about the Korg PolySix synthesizer

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.
> >
> > > > >
> >
> > > >
> >
> > >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >   YAHOO! GROUPS LINKS
> >
> >
> >
> >
> >    Visit your group "PolySix" on the web.
> > 
> >    To unsubscribe from this group, send an email to:
> > PolySix-unsubscribe@yahoogroups.com
> > 
> >    Your use of Yahoo! Groups is subject to the Yahoo! Terms of 
Service.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> 
> _________________________________________________________________
> FREE pop-up blocking with the new MSN Toolbar – get it now! 
> http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/
>