If it is any of those chips, I have them.
Doug
synthparts.com
--- In yamahacs80@yahoogroups.com, David Rogoff <david@...> wrote:
>
> Hi!
>
> Could be a few things:
> Wave converter chip creates the saw/square
> One of the filter chips
> VCA that controls the filter level
>
> Hope for the last one, since that's just one of the IG00151 VCA chips
> that are all over the CS80 - and other Yamaha synths and organs - and
> pretty easy to get.
>
> Should be very easy to trace with a scope - or even a amplifier if
> you're low tech. Where are you located?
>
> David
>
> jesus wrote:
> > Hi, group,
> >
> > My beautiful CS-80 has a minor issue: One of the upper-row voices seems to only have the sine wave suboscillator, but no VCO-VCF in it. This is obviously more noticeable if I silence the bottom row, and if I mix both rows equally it becomes barely perceptible, kinda' like a muffled note caused by hitting the key too slowly.
> > It is a barely-noticeable "blemish", but I hate it.
> >
> > Anybody want to tackle this one?
> > I have tried contacting Old Crow using the email from his CS80 site, but it bounces back.
> >
> > Hope you guys can come up with a solution.
> >
> > Thanks!!!
> >
> > JDiaz
> >
> >
> >
> > ------------------------------------
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> >
> >
> >
>