[sdiy] Re: [AH] broken mc-202
paul.maddox.mail-list at synth.net
paul.maddox.mail-list at synth.net
Thu Jul 9 10:24:22 CEST 2009
I'd look at the slider.
I bet the carbon track is broken/burnt out :-)
>
> On Wed, Jul 8, 2009 at 4:08 PM, Danjel van Tijn<danjel at gmail.com> wrote:
>> Just picked up a broken mc-202 with a (possibly) minor issue.
>>
>> There seems to be a problem with the releases phase of the envelope.
>> When the R is at 0 everything is fine but when R is at any value
>> greater than zero it sustains infinitely.
>> I am guessing that the R slider forms part of RC timing circuit for
>> the ADSR so that maybe if it is broken (ie. the potentiometer is an
>> open circuit) then at any value other than zero (where it is shorted
>> out) it never a release/discharges.
>>
>> Any clues?
>>
>>
>> cheers,
>> Danjel
>>
>
>
>
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