[sdiy] arp odyssey unusual bug

[leaf at babble.vibrant.org]

Rob,

Thanks for the quick reply.  

I tested the cap's and they seem to be ok.  The behavior has
gotten weirder though - sometimes the pitch is scaled way off...

The schem i'm using is at
http://www.physicsenterprises.andrews.edu/diy_archive/manuals/arp/odyssey/ody_28.gif

The suspect part is the control voltage memory section, right?  C7 and C8
seem to be ok.  I can't find any info on the 56018 shown in the schems,
same for the 1MF3958 dual fet package.  Do these seem like likely
candidates for replacement?

thanks,
Phil




On Mon, 5 Nov 2001, Rob B wrote:

> I had the same thing happen with my oddy.. Its a problem with one of the
> sample and hold caps.. Its prlly a good idea to change all of them if you
> can. Its on board A. A handful of radio shack parts and you should be on
> your way! ;) Thats the good news.. hehe..
> 
> Thanks
> 
> Rob
> 
> 
> > hello,
> >
> > my arp is behaving in quite a curious way - when i play a note, i get the
> > same pitch for almost all keys.
> 
>