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Subject: Re: Oscillators dead after mods...?

From: "Trever Keith" <antagonistrecords@...>
Date: 2007-12-04

Why didn't I think of that?

I loaded the sound bank and it works great now. Thanks very much for
the simple solution!



--- In korgpolyex@yahoogroups.com, Marco Andreetta
<marco_andreetta@...> wrote:
>
> You have to reload the sound preset because you changed the battery
and lost them. Check in the files sections under preset&patches.
>
> I suggest to load the original sound bank first (very nice resonant
patches and brass) and also to check the poly800 synthmania page:
>
> http://www.synthmania.com/poly-800.htm
>
>
>
> Trever Keith <antagonistrecords@...> ha scritto:
Hi everyone, I'm new to the group (and to the Poly 800). I
recently
> bought one which was fully working, and undertook the two popular mods
> ("Moog Slayer" and FM-800) and replaced the battery.
>
> Since these are pretty simple mods, and I'm pretty experienced with
> this kind of thing, I overconfidently did them all at once (instead of
> testing between each). I think I did a very nice job of it but...
>
> Somewhere along the way I seem to have killed something. The keyboard
> powers up and operates normally except...no oscillators. The noise
> generator is clearly working, the filter seems to be working normally
> (on the noise), the mods are doing their thing, and obviously the
> output section is working. It seems the oscillators are dead.
>
> All my work was done with great care...I am very experienced with a
> soldering iron and circuit board work, and there is no visual
> indication that anything was damaged along the way. I was careful
> about the potential for heat damage and static discharge. I checked
> and re-checked everything I did...the mods themselves are correct (and
> seem to be working fine). Still, clearly I did something to something!
>
> I am not a scope-wielding super-tech...I am good with the mechanical
> stuff, but my knowledge of electronics is basic. So I'm hoping some
> of you here (who clearly know WAY more than I do about this stuff)
> might be able to help me out with diagnosing and fixing the problem.
> At the moment I scarcely know where to begin looking.
>
> Anything you can tell me would be much appreciated.
>
> Thanks in advance.
>
>
>
>
>
>
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