Yamaha CS80

Regarding the voices not playing: check the contacts and conduction of all the (very thin...) wires running to the voice boards, if one them is faulty the entire voice might not sound anymore. I had it on my CS60; we could see that the KAS actually assigned a voice to play, but  one of the voices didn't sound. One of the wires had a bad solder contact...

It's of tremendous help if you have one of these 'indicator' boards in your CS, that shows which voice is (or should be) playing:
http://groups.yahoo.com/group/yamahacs80/photos/album/35984432/pic/list

Hope you'll find the problem!

Cheers,
Rainer

--- In yamahacs80@yahoogroups.com, "Rainer" <rainer.keizer@...> wrote:
>
> According to this site, it appears to be the same part number:
> http://www.wdgreenhill.com/manu/yamaha_s.htm
> 
> --- In yamahacs80@yahoogroups.com, "papinje" <fernandozarone@> wrote:
> >
> > Hi all, 
> > after completing (9 months work...) the overhauling of the CS80, that  is amazingly playing now, I have opened a friends' CS60, that doesn't work (as usual... :-)
> > I am surprised for finding in all of the the M-voice boards two ICs, named m51623p  and m51628p, instead of the IC8 and IC9  IG00153 and IG00158... 
> > Is this normal?   BTW, no sign of desoldering. All of the traces are immaculate.
> > The machine is pristine, and only two voice seem to play some sounds...
> > If they are correct (a newer  or elder series?) is  any modification needed?
> > Thanks 
> > 
> > Fernando