Hi Don and Peter,
Your messages have been very helpful consequently I've discovered anomalies elsewhere...
IC26 p5 doesn't connect to IC34 p5 - should I bridge this ?
IC26 to IC32 connections are all fine.
Also I think there's a mistake in the schematics. Rather than IC34 connecting to IC32 it seems to be IC26 p2, 1, 11, 10 that is connected to IC32 p2, 1, 17, 16
Regards,
Tony
--- In PolySix@yahoogroups.com, "backshall1" <backshall1@...> wrote:
>
> Yes, there is an error in the schematics. Pin 5 is +5v, not pin 4. Pin 4
> really does go to pin 12 on the 8048. I just checked a clone board and an
> old original KLM-367. They are the same.
>
> Don B.
>
>
>
> _____
>
> From: PolySix@yahoogroups.com [mailto:PolySix@yahoogroups.com] On Behalf Of
> Peter Mörck
> Sent: Monday, July 23, 2012 8:25 PM
> To: PolySix@yahoogroups.com
> Subject: Re: [PolySix] Re: Polysix contact strip
>
>
>
>
>
> You must be looking at the board layout drawing.
> The schematics are different and have no "layers". They just show how it's
> connected without actual physical constraints.
>
> Anyway, I just looked and pins 1,4,10,13,14 of IC31 are tied to +5V :)
>
> By the way,
> I assume there's an error in the schematics indicating pin 4 tied to pin12
> of the 8048, as it's also tied to +5V.
> Either that's pin 5 instead, or vice versa.
>
> IC31 is just a quad AND gate acting as a buffer. Each of the AND gates has
> one of its inputs tied to +5V so whatever appeard on the other input will
> also appear on the output of that gate.
>
> The traces under IC31 are usually attacked by the battery acid though and it
> is good if you do continuity testing around that area.
>
> BR,
> Peter
>
> ----- Original Message -----
> From: tonezone020
> To: PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com>
> Sent: Tuesday, July 24, 2012 1:45 AM
> Subject: [PolySix] Re: Polysix contact strip
>
> Hi,
>
> Looking at the schematics it's hard to tell - it doesn't seem like there is
> one for the underside of the board ...
>
> Regards,
>
> Tony
>
> --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> , Peter
> Mörck <peterm@> wrote:
> >
> > Just compare with the schematics?
> >
> > BR,
> > Peter
> >
> > ----- Original Message -----
> > From: tonezone020
> > To: PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com>
> > Sent: Tuesday, July 24, 2012 12:52 AM
> > Subject: [PolySix] Re: Polysix contact strip
> >
> >
> >
> > Hi,
> >
> > Thanks for your message.
> >
> > I managed to sort the strips out - they had stretched, but with a bit of
> coaxing the keys are now working.
> >
> > Been slowly trying to fix the battery leak problem with a tiny bit of
> success and Old Crow's advice from his site.
> >
> > I discovered pin numbers 13 and 14 on IC31 are connected. Do you know if
> this should be so? There seems to be a copper trace on the underneath
> circuitry. It also appears to be the same for IC30...
> >
> > Thanks,
> >
> > Tony
> >
> > --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> ,
> bastebraak <bastebraak@> wrote:
> > >
> > >
> > >
> > > Is the old one damaged or just not working well. I fixed the contacts on
> my polysix with a paste i ordered online.
> > >
> > >
> > > Verzonden vanaf Samsung Mobiletonezone020 <swamp.gigs@> schreef:
> > > Hi All,
> > >
> > > Does anyone know where I can get a couple of 6 bubble contact strips or
> alternatives for my synth, preferably in the Uk ?
> > >
> > > Many thanks in advance,
> > >
> > > Tony
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> >
> >
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> >
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