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RE: [crumar] Re: New Owner of an OTR/Orchestrator

2003-10-28 by Margus Kliimask

I don't know about OTR keyboard (does this stand for Orchestrator? which is actually Multiman) but in these 'organ-style' keyboards the sound is generated by TOS (Top Octave Synthesizer chip which generates all 12 base frequencies) which are then divided down by divider chips for lower octaves, one for each note (12 altogether). In my Performer this divider chip is TDA1008, I bet one of your dividers is either dead or malfunctioning. You can try swapping the C note divider (should be the first one from left) with another one and see if the dead note moves to another note.
Cheers,
Margus
-----Original Message-----
From: Floyd Smoot [mailto:tubetater@yahoo.com]
Sent: 28. October, 2003 00:42
To: crumar@yahoogroups.com
Subject: [crumar] Re: New Owner of an OTR/Orchestrator

This place is pretty dead!

I fixed the original problem with the synth, and it worked for about
two days. Then the C note went out, all 5 octaves. Any suggestions
about what might be wrong?

Thanks-
floyd
--- In crumar@yahoogroups.com, "Floyd Smoot" wrote:
> Also known as an Orchestrator?
>
> --- In crumar@yahoogroups.com, "Floyd Smoot" wrote:
> > hello-
> >
> > I just picked up a Crumar OTR keyboard. I don't know anything
about
> > it, but the price was right. It makes no noise at all, but the
> power
> > light comes on! anybody have any suggestions, or schematics?
> >
> > Thanks for your help!
> >
> > floyd



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