[sdiy] dead odyssey

[Jeremiah Pellin]

no i haven't.  i'm currently looking for someone who could give this thing some love for me.  all the slider pots are stiff and "scratchy".  i absolutely love just looking at it though.  such a sweet instrument.  if i could only destroy some mixes with it!  i really would like to get someone with good hands to restore this thing for me.  i would love to work on it but it needs more than my green hands.
----- Original Message -----
From: Tim Parkhurst <tparkhurst at siliconbandwidth.com>
Date: Mon, 16 Jun 2003 09:46:31 -0700
To: ''Jeremiah Pellin'' <jpellin at iname.com>
Subject: RE: [sdiy] My Odyssey can't talk!!

> Hi there!
> 
> Did you ever get your Odyssey fixed? I had a very similar problem and I
> finally tracked it down to a bad VC summing chip before the VCF. The Ody VCF
> needs NEGATIVE control voltage (as the voltage goes more negative, the VCF
> pass frequency goes up), and the CV summing chip does this inversion. I've
> resurrected three different Odysseys now, so I'm getting kind of good at it
> (the other two had bad decoupling caps. Scary at first 'cause it makes the
> power supplies run REAL HOT, but a very simple fix once you find it.)
> 
> Tim Parkhurst (Tim Servo)
> Design Engineer
>  
> Silicon Bandwidth
> "Imagination is more important than knowledge." - Albert Einstein
>  
> *****************************************************************
> 
> > -----Original Message-----
> > From: Jeremiah Pellin [mailto:jpellin at iname.com]
> > Sent: Friday, June 06, 2003 10:41 PM
> > To: synth-diy at dropmix.xs4all.nl
> > Subject: [sdiy] My Odyssey can't talk!!
> > 
> > I'm in a jam.  I've got an Arp Odyssey II and it can't talk.  If I send
> > the output to a mic pre and jack it up I can hear envelopes, LFO, and I
> > think the VCA wants to work right, BUT, I definately get no response or
> > signal out of the Filter.  The previous owner didn't tell me that it had
> > been dropped.  Inside is fairly clean for it's age.  Nothing noticeably
> > out of place.  To all that have experience, are these the symptoms of a
> > dead VCF?
> > 
> > Thank You For Your Time and Help!
> > 
> > mIaH
> > --
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> 
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