Hello David
sorry I forgot, do you have a part list for you CS-80 project?
I already got the list from old crow's web site but maybe you have also one
where I can benefit from.
Regards
Thorsten
>From: David Rogoff <david@...>
>Reply-To: yamahacs80@yahoogroups.com
>To: yamahacs80@yahoogroups.com
>Subject: Re: [yamahacs80] I'm tuned!
>Date: Fri, 02 Dec 2005 21:07:25 -0800
>
>Thorsten P�rschke wrote:
> > Hello David
> >
> > Thank you very much for your quick answer.
> > I wanted to know which pcb (KAS, TKC, TSB1, eg.) you choosed to start
>with?
> > Did you also overhaul the power supply and if which parts besides the
>cap.
> > did you changed.
> >
> >
>I don't remember what order I did the boards in. I did, however, do one
>board at a time and made sure it was still working before I did the next
>board. I did have a couple of solder bridges that took some time to
>find, and generated really weird symptoms. You need to have a decent
>multi-meter and simple oscilloscope, the schematics (mostly available
>online - see Links), and an understanding of some digital and analog
>electronics, because something will go wrong when removing/replacing
>over a hundred 14 and 16 pin chips!
>
>There's tons of detailed pictures I put on the site (Photos > CS80
>renovation) as I did the work. The only thing on the power supply was
>replacing all the caps (other than calibrating it). All 4000-series
>CMOS chips were removed, sockets soldered in, bypass caps added, and new
>chips put in. I also added larger caps for each board. I basically
>followed Crow's website. The biggest help was buying a used
>de-soldering station. It would have been crazy to try it with just a
>spring-loaded solder remover. When I was done, I sold it (to the owner
>of the Yahoo oldsynths group).
>
> David