[sdiy] CS80

[david at therogoffs.com]

> Has anyone attempted to tune and adjust a Yamaha CS80?
> I'm fixing a CS80 and the dreadful day that I have to tune it is coming
> closer...
> I have the schematics with tuning for the oscillators but I have no
> instructions for the remaining 18 or so trimmers on the voiceboards so I
> need some additional info.
> 
> I could propably use trial and error but that would take weeks!
> 
> so far I have fixed a broken oscillator, noise, octave-switch, one
> broken octave of the keyboard, cleaned the panel, keys, all
> knobs/slidercaps and wooden ends and replaced a lot of missing screws. 

Everything you need is at www.cs80.com, Crow's site, and also http://personal.inet.fi/private/matador/cs-80_adjustment_procedure.html.  I also run a CS80 group on Yahoo (http://launch.groups.yahoo.com/group/yamahacs80/) that has links to lots of great sites and has lots of discussions about CS80 repairs/tuning.  Many CS80 experts are in the group.

 David