Hi,
As a last ditch attempt, I found a 3080 (metal can type) and replaced one on the board! Hey it works now In the Notch Hp and BP modes, I think the other 3080 goes to the LP which still does not work but I don't have a replacement for it! Now all I have to do is find three more 3080's hahaha.
Thanks ever so much for your suggestions. This is the first time in many years of building circuits that I have had a bad part, let alone four!
Thanks
Robert Gerard
As a last ditch attempt, I found a 3080 (metal can type) and replaced one on the board! Hey it works now In the Notch Hp and BP modes, I think the other 3080 goes to the LP which still does not work but I don't have a replacement for it! Now all I have to do is find three more 3080's hahaha.
Thanks ever so much for your suggestions. This is the first time in many years of building circuits that I have had a bad part, let alone four!
Thanks
Robert Gerard
--- In cgs_synth@yahoogroups.com, sasami@... wrote:
>
> The only remaining think I can think of is for you to send it to me.
>
> Ken
>
> >
> >I put in 10 links (jumpers) Five in each filter.
> >Hope I didn't miss some.
> >
> >Robert
> >
> >--- In cgs_synth@yahoogroups.com, sasami@ wrote:
> >>
> >> I can't see anything wrong in what you have uploaded. Have you got all the
> >> links in at the other end of the board?
> >>
> >> Ken
> >>
> >> >
> >> >I posted two pictures in the album called CMOS, If they are not big enough
> >> let me know if I can e-mail them to you.
> >> >
> >> >THanks, Robert
> >> >
> >> >
> >> >--- In cgs_synth@yahoogroups.com, sasami@ wrote:
> >> >>
> >> >> >Yes its the CD UB variant, Is there an easy way to test the LM3080? I got
> >> >> mine from LB designs, I cant imagine they are all bad?
> >> >>
> >> >> I'm just looking for something wrong in both sections.
> >> >>
> >> >> >What should the voltages be on the LM3080 typically be? Pin 5 is at
> -5 and
> >> >> turning the freq pot all the way it only drops to like -4.9?
> >> >>
> >> >> Pin 5 is tied via an internal diode to the negative power pin. It won't
> >> >> move, voltage wise. It is the current through it that controls it.
> >> >>
> >> >> Take a couple of high-res photos of the thing - above and below.
> >> >>
> >> >> Ken
> >> >> _______________________________________________________________________
> >> >> Ken Stone sasami@ otherunicorn@
> >> >> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> >> >> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
> >> >>
> >> >
> >> >
> >> >
> >> >
> >> >------------------------------------
> >> >
> >> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >> >Yahoo! Groups Links
> >> >
> >> >
> >> >
> >> >
> >> _______________________________________________________________________
> >> Ken Stone sasami@ otherunicorn@
> >> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> >> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
> >>
> >
> >
> >
> >
> >------------------------------------
> >
> >The CGS Modular Synth home page: http://www.cgs.synth.net/
> >Yahoo! Groups Links
> >
> >
> >
> >
> _______________________________________________________________________
> Ken Stone sasami@... otherunicorn@...
> Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>