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...
> > 
> >
>