Has anyone seen any failures of the "newer" unranked oscillators? I haven't, so far.
John Leimseider
Electronics Technician/ Technicien des instruments électroniques
Cantos Music Foundation/National Music Centre Project/Projet du Centre National de Musique
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-----Original Message-----
From:
yamahacs80@yahoogroups.com [mailto:
yamahacs80@yahoogroups.com] On Behalf Of Fernando Zarone
Sent: Tuesday, October 25, 2011 9:08 AM
To:
yamahacs80@yahoogroups.comSubject: Re: [yamahacs80] IC m51623p ???
Thanks, friends,
yes, the ICs are the same; and they work, as seen on the oscilloscope at their outputs, so, fortunately, it could be a wire problem...
I'll let you know what happens...
Il giorno 25/ott/2011, alle ore 14:42, Rainer ha scritto:
> That's what I suspected indeed. I just used the site to point out that at least those people indicate that the TS's part numbers should be the same as the IG..... ones :-)
>
> If anyone should ever replace a VCO IC, make sure its "Rank" is within the tolerance limits described by Yamaha! otherwise the difference in temperature response will lead them to behave differently amongst each voice, so you can never tune your CS as close as otherwise would be possible.
> http://www.cs80.com/docs/service_bulletin/cs-80_service_news_3.gif
> http://www.cs80.com/docs/service_bulletin/cs-80_service_news_4.gif
>
> --- In yamahacs80@yahoogroups.com, "Quazimodo" <noddyspuncture@...> wrote:
> >
> > And you try buying one off them... these guys advertise as if they have everything. Then, when you try getting one off them they say they will have to "order one in"... maybe a year down the line (after you've chased and chased them - they won't contact you!) they then tell you it's unavailabe!
> >
> > I don't know why they still keep people hopes up by putting those part numbers on their site. Very annoying...;c(
>
>
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