[sdiy] broken chorus on mks-30

[Danjel van Tijn]

> please dont start hacking apart working synths for parts!!
>
well it is not a fully working synth. The chorus does not work and
maybe that is a symptom of some other problem. Obviously I want to fix
it or I wouldn't have posted it but if I can't and I have a choice of
selling it for a $100 becuase it is not working properly or selling it
for $360 worth of parts what do you think I will choose to do?

Also the chips that come out of it would be going towards restoring
other synths that are not working.

I have a Oberheim Matrix 6R that is facing a simmilar fate. It will
turn on but will not respond to midi and after many hours off
debugging I have not been able to determine the problem. I have
offered this to many people for sale as a project synth but no one has
been interested. So it either sits gathering dust or I could takke the
voice chips out and sell those for more than the broken synth is
worth.

cheers,
    Danjel


>
> is money really important enough to start meaning we have less working synth history?
>
> just a thought
>
> thanks
>
>
>
>
> --------------------------------------------
> check out various dan music at:
>
> http://www.myspace.com/lossnyc
>
> (updated monthly)
>
> http://www.soundclick.com/lossnyc.htm
>
>
>
> http://www.indie911.com/dan-snazelle
>
> (or for techno) http://www.myspace.com/snazelle
>
> ALSO check out Dan synth/Fx projects:
>
> AUDIO ARK:
>
> www.youtube.com/watch?v=TJRpvaOcUic
>
> www.youtube.com/watch?v=BqIa_lXQNTA&feature=channel_page
>
> www.youtube.com/watch?v=V4nJPjGgOcU&feature=channel_page
>
>
>
>
>
>
>
> ----------------------------------------
>> Date: Sat, 28 Mar 2009 15:11:21 -0700
>> From: danjel at gmail.com
>> To: synth-diy at dropmix.xs4all.nl
>> Subject: [sdiy] broken chorus on mks-30
>>
>> I pulled my mks-30 out of the closet and found that it is no longer
>> working %100. The synth works perfectly until I turn the chorus on.
>> With chorus engaged the output is distorted and I hear a loud hum.
>>
>> I can find schematics for every part of the mks-30 except for the
>> power board that has the chorus circuit on it.
>>
>> Has anyone experienced a simmilar problem and know how to fix this?
>> Maybe they have a scan of the schematic?
>>
>> In exploring the synth which has 6 perfectly working 80017A chips I am
>> wondering if this synth is worth more as parts then as a working
>> synth? For example the the 80017A chips sell for $60 each x 6 = 360USD
>> while the average mks-30 only sells for about $275.
>>
>> cheers,
>> Danjel
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>