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2011-01-10 by letcista
Hello group. I bought an old elkatwin 61. Poly section (A or B) has both the same problem. When I press more than one key the sound becomes distorted and the more keys I press lower is the volume. Any sugestions will be apreciated. Best regards. Jos� Portugal
2011-01-11 by Doug
That sounds like you'll need to find and replace one or more leaky electrolytic caps. With any machine that old, you are likely to find that. Can't help you on anything more specific without actully having the unit hooked up to a scope. Sorry. --- In vintagesynthrepair@yahoogroups.com, "letcista" <jose.gouveia.pereira@...> wrote:
> > Hello group. > I bought an old elkatwin 61. > Poly section (A or B) has both the same problem. > When I press more than one key the sound becomes distorted and the more keys I press lower is the volume. > Any sugestions will be apreciated. > Best regards. > José > Portugal >
2011-01-11 by Jose Pereira
Thanks Doug!
There\u2019s 49 small boards (one for each key in the poly section) inside.
These small board are for envelope generators. Each of these boards have a double circuit. One for section A and other for section B (two sound generators)
The electrolytic capacitors in these boards show some corrosion and the envelope have an irregular behavior.
Best regards.
José
Portugal
De: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] Em nome de Doug
Enviada: terça-feira, 11 de
Janeiro de 2011 13:58
Para: vintagesynthrepair@yahoogroups.com
Assunto: [vintagesynthrepair] Re:
Elka elkatwin 61
That sounds like you'll need to find and replace one
or more leaky electrolytic caps. With any machine that old, you are likely to
find that. Can't help you on anything more specific without actully having the
unit hooked up to a scope. Sorry.
--- In vintagesynthrepair@yahoogroups.com,
"letcista" <jose.gouveia.pereira@...>;
wrote:
>
> Hello group.
> I bought an old elkatwin 61.
> Poly section (A or B) has both the same problem.
> When I press more than one key the sound becomes distorted and the more
keys I press lower is the volume.
> Any sugestions will be apreciated.
> Best regards.
> José
> Portugal
>
2011-01-12 by Quazimodo
Change them ALL Jose... ;c) --- In vintagesynthrepair@yahoogroups.com, "Jose Pereira" <jose.gouveia.pereira@...> wrote:
> > > The electrolytic capacitors in these boards show some corrosion and the > envelope have an irregular behavior. > Best regards. > José > Portugal
2011-01-12 by Jose Pereira
I\u2019ll do it!
Thanks.
Best regards.
José
De: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] Em nome de Quazimodo
Enviada: quarta-feira, 12 de
Janeiro de 2011 2:32
Para: vintagesynthrepair@yahoogroups.com
Assunto: [vintagesynthrepair] Re:
Elka elkatwin 61
Change them ALL Jose... ;c)
--- In vintagesynthrepair@yahoogroups.com,
"Jose Pereira" <jose.gouveia.pereira@...> wrote:
>
> > The electrolytic capacitors in these boards
show some corrosion and the
> envelope have an irregular behavior.
> Best regards.
> José
> Portugal