that's really interesting, i have a similar problem - bank D and patch 4.
but i'm not sure about the patch degradation... sometimes i DO get the VCO
modulation but i always thought it was the old patches. it could be exactly
the same as your problem.
i changed the leaked battery, i changed both IC30 and IC31, i also changed
IC22 (the CPU) and repaired quite a few broken traces.
cheers,
jure
On 6/3/06, gregory zifcak <foleymachine@yahoo.com> wrote:
>
> hi,
> i am working on a polysix that is sometimes perfectly functional for long
> stretches, but
> randomly exhibits a weird problem. it seems to have nothing to do with how
> long it's been
> on. basically, the bank d button and patch 4 button start to come on and
> the patch starts
> to deteriorate, turning on vco modulation, pwm, etc, and doesn't want to
> save patterns
> correctly. it's always d and 4. the battery has recently been replaced
> with a new one, and
> some minor corrosion damaged was repaired. sometimes the synth behaves
> normally, and
> has no problem saving and recalling patches.
> any ideas?
> thanks,
> greg
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> PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
> Yahoo! Groups Links
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