Vintage Synth Repair

Looking at the Odyssey tech manual, the only "chip" connected with VCO
2 on the Revision 1 board is a quad input NAND gate, which should be a
simple fix.  On the Revision 2 board, there's also an LM1458 and a
CA3086, which might be harder to find but not impossible.  You don't
mention what kind of Odyssey you've got: I, II or III?

There's nothing on the Ody that is special; it's mostly discrete
components, apart from the "sealed-in-resin" filter modules.

Anyway, I doubt that your problem is a "chip".  More likely a
transistor or diode.

Go to http://www.arpodyssey.com for the tech manual.

Good luck.

--- In vintagesynthrepair@yahoogroups.com, "iwishiwascrying"
<iwishiwascrying@...> wrote:
>
> is the chip fixable? or am i out of luck : /
> 
> --- In vintagesynthrepair@yahoogroups.com, "John Koumoutseas"
> <john@> wrote:
> >
> > The slider could be bad but it think it's most likely that the chip 
> > in the oscillator circuit is bad.  That is usuall most common.  John
> > 
> > --- In vintagesynthrepair@yahoogroups.com, Mike B 
> > <moremodernmusic@> wrote:
> > >
> > > It could be dirt in the slider on the mixer control.  You could 
> > try using an electrical spray cleaner (Contact Control Cleaner and 
> > Lubricant from Radioshack)  and working the slider back and fourth.  
> > I had a single oscillator issue like thin on mine and this seemed to 
> > fix it along with cleaning the frequency coarse adjustment.   I hope 
> > this helps.  
> > > 
> > > iwishiwascrying <iwishiwascrying@> wrote:          So i 
> > recieved an odyssey and everything is fine with it except i
> > > cannot get any sound to come from the second osc. Im not sure what 
> > the
> > > problem could be or if there is anything i can do myself to fix 
> > this.
> > > I live in a place where there arent many people who know how to 
> > fix a
> > > synth let alone an arp. Thanks for the help!
> > > 
> > > 
> > > 
> > >          
> > > 
> > >  		
> > > ---------------------------------
> > > Stay in the know. Pulse on the new Yahoo.com.  Check it out.
> > >
> >
>