Correct -- even in Manual mode, it won't work.
The Polysix (& other "memory" synths) runs ALL of its control voltages thru
the CPU -- any problem on the data or address lines will be reflected in
the synth audio section.
I've never seen a battery-damaged P6 that didn't need at least SOME trace
repair -- if you're fairly comfortable with reading schematics & tracing
circuitry, this is do-able. If you're not, you might want to call in some
help.
~G
At 12:02 PM 10/6/2005, you wrote:
>--- Thanks for your response. If I read you comments right, you say
>that if the traces to the processor or IC31 are damaged you possibly
>will not get any sound? Does this also hold true if you try to play
>it in "manual mode"?
>I did take out the old battery and tied in a fresh battery to see if
>I could get sound out of it but no luck. There was a little acid
>leak which I cleaned up and did a "quick" continuity on the traces
>around the chip which seemed to be fine. Obviously that does not mean
>traces underneath or the vias are good. Please confirm that in deed
>if traces are bad even if in maunal mode I will not get sound.
>Thanks.
>
>
>
>
>
>
>In PolySix@yahoogroups.com, "Seppo Sipilä" <Seppo.Sipila@m...> wrote:
> > > and stable. Powered it up and I still have no sound. CAn anyone
>tel
> > > me if this is a Battery issue. I would think a battery leak
>problem
> > > would not allow you to store but would it cause NO SOUND? Looking
> > > for some areas to next look at.
> >
> > The battery leak on my Polysix was very hard to see, but it damaged
> > the memory circuit board and the nearest chip underneath so that I
> > had complete sound loss and several memory lights lighting up at
>the
> > same time. The damage screwed up the memory board so that the poor
> > thing didn't know what settings to use and went silent instead.
> >
> > Just in case someone doesn't know this yet: if you have a Polysix
> > that has never had the battery replaced, DO IT NOW. The battery is
> > more than 20 years old and just waiting to leak corrosively all
>over
> > the memory circuit board. If it hasn't done so yet, you've been
>lucky
> > - but it won't last. I found this out the hard way (luckily I had
>my
> > patches backed up just recently and a soldering wizard of a friend
>to
> > do the repair job properly).
> >
> > Now it works perfectly again with a modern metal hydride battery,
>but
> > it was a much bigger soldering & chip-replacing job than just
> > replacing the old battery before it leaks. There are excellent
> > Polysix battery leak repair instructions on Old Crow's pages
>(thanks
> > a 1000000):
> <http://www.oldcrows.net/~oldcrow/synth/korg/polysix/>http://www.oldcrows.net/~oldcrow/synth/korg/polysix/
> >
> > S.
>
>
>
>
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