Yamaha CS80

I change ALL the electrolytic capacitors of the pra board, and now my CS80 has
eliminated all the background noise.


2013/5/26 pyjamagroove <pyjamagroove@...>

> Well, I´m pretty sure it´s not a voice card as it comes from all the
> voices. It must be a general problem. It leaks noise, some VCO signal and
> that high annoying tone that comes when the general brilliance is closed.
> It´s quite annoying cause it gets through the low base sounds hissing in
> the background....Could it be the PRA board?
>
> --- In yamahacs80@yahoogroups.com, The Old Crow <oldcrow@...> wrote:
> >
> >    CS filters cannot self-oscillate; they are wired with external
> > feedback limiting on the resonance control VCAs inside the IG00156s.
> > You might be hearing chorus unit clock noise.  Or a noisy FET somewhere
> > leaking a VCO signal. My CS80s are noisy in this regard, probably due to
> > age more than anything.  --Crow
> >
> > On 5/23/2013 3:14 PM, pyjamagroove wrote:
> > > If I go to the panel mode (both channels) and turn all VCOS, noise and
> sine off, both VCF up -then I put overall brilliance and keyboard control
> brilliance up and press like 6 or more keys at the same time, I hear high
> sine sound and actually a little VCO in the background and some noise
> clipping while pressing those keys. I´ve noticed this playing presets like
> brass with all the brilliance up. Do you guys have the same effect or there
> is something wrong with my CS80?
> >
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
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