Yamaha CS80

New to this group and need help getting my CS-80 repaired. Anyone know
of anyone who would just repair the aftertouch on my synth? I could
send the aftertouch board...

Anyone?

system_700 wrote:

> New to this group and need help getting my CS-80 repaired. Anyone know
> of anyone who would just repair the aftertouch on my synth? I could
> send the aftertouch board...
>

Welcome to the group!

I hope you can get some help fixing up your CS-80, but sometimes it can
take a while. What's wrong with it? One key? Several keys? A whole
octave? Why do you think it the aftertouch board and not the TSB
boards? Have you put a voltmeter on the output of the aftertouch
sensor? Any, of course, where are you located?

David



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Thanks for the reply. The aftertouch went out across the whole board.
When I first bought it, it was out, then turned on "magically" after
warming up. I have not put a voltmeter anywhere yet. :-) Can you
advise where to put it? I have the schematics. I'm in Detroit.

Thanks...

--- In yamahacs80@yahoogroups.com, David Rogoff <david@...> wrote:
>
> system_700 wrote:
> > New to this group and need help getting my CS-80 repaired. Anyone
know
> > of anyone who would just repair the aftertouch on my synth? I
could
> > send the aftertouch board...
> >
> Welcome to the group!
>
> I hope you can get some help fixing up your CS-80, but sometimes it
can
> take a while. What's wrong with it? One key? Several keys? A
whole
> octave? Why do you think it the aftertouch board and not the TSB
> boards? Have you put a voltmeter on the output of the aftertouch
> sensor? Any, of course, where are you located?
>
> David
>
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.385 / Virus Database: 268.3.5/301 - Release Date:
4/4/2006
>

I guess it's the CMOS-ic's. I had the same problem: after I while the
aftertouch came to life and died again. I had all cmosses replaced and
capacitors added, as mentioned in old-crow's website, and after that
the aftertouch was fine. There are about 70 cmos-ic's, it will cost
some 70 or 80 USD including sockets.
good luck !

--- In yamahacs80@yahoogroups.com, "system_700" <voyetra8@...> wrote:
>
> Thanks for the reply. The aftertouch went out across the whole board.
> When I first bought it, it was out, then turned on "magically" after
> warming up. I have not put a voltmeter anywhere yet. :-) Can you
> advise where to put it? I have the schematics. I'm in Detroit.
>
> Thanks...
>
>

Thanks eric...do you have a source for the parts, and detailed
instructions as to where to solder the capacitors?

Thanks!!!

--- In yamahacs80@yahoogroups.com, "erikfromhere" <erikfromhere@...>
wrote:

>
> I guess it's the CMOS-ic's. I had the same problem: after I while

the

> aftertouch came to life and died again. I had all cmosses replaced

and

> capacitors added, as mentioned in old-crow's website, and after

that

> the aftertouch was fine. There are about 70 cmos-ic's, it will cost
> some 70 or 80 USD including sockets.
> good luck !
>
>
> --- In yamahacs80@yahoogroups.com, "system_700" <voyetra8@> wrote:
> >
> > Thanks for the reply. The aftertouch went out across the whole

board.

> > When I first bought it, it was out, then turned on "magically"

after

> > warming up. I have not put a voltmeter anywhere yet. :-) Can you
> > advise where to put it? I have the schematics. I'm in Detroit.
> >
> > Thanks...
> >
> >
>