Yamaha CS80

Had the same problem, on my cs80 TR29 was a broken on the BA board,

good luck

--- In yamahacs80@yahoogroups.com, "Heath Finnie" <heathfinnie@...>
wrote:

>
> This is a big question here. The CS-80 I'm working on will barely

change pitch all the way up

> the keyboard now. Some keys will play a little lower but not much.

Now here are the

> symptoms:
>
> I replaced most all the IC's on the sub board. I replaced the

entire KAS board with a working

> one. Problem does not change.
>
> The pitch ribbon is having no effect on pitch. Neither is the pitch

knob.

>
> The channel 2 detune IS working as is the footing sliders.
>
> Ring modulator is working, sub oscillator is working and so is all

the waveforms.

>
> Any of the tech guys able to help?
>
> Thanks!
>