Yes,
from KAS trigger points the voltage goes from positive to negative for each voice, the LEDS in the detector device light up regularly
Il giorno 26/ott/2011, alle ore 02:38, synthparts ha scritto:
> The Yamaha IG chips were made by Mistubishi. The Mxxxx is the Mitsubishi part #. I've never seen the 153s just labeled with just the Mits part but almost all the 150s I have are. Are bad voices getting their key gates from the assigner?
> Doug
> synthparts.com
>
> --- In yamahacs80@yahoogroups.com, Fernando Zarone <fernandozarone@...> wrote:
> >
> > Yes, the M5162∗p ICs work as well as the corresponding IG∗∗∗∗.
> > I don't know whether this is a last rev of the machine, but it is from the factory for sure. No sign of any soldering...
> > Now, the CS 60 (great condition) only plays the voice n.1 and the voice n. 8. Fortunately, I do have the simple LED device for detecting the triggered voice (thank you, CSers!) . In the M boards the oscilloscope shows the presence of the right waveforms, but from the VCA IC 4 stage to the output O. I mean, it seems to be a common problem of those voices, not related to the individual boards!
> > Any suggestion from the CS gurus?
> >
> > All the best
> > Fernando
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
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