I've got one (also 2 pieces CS40m, SY1, CS80, also ARP Pro Soloist
DGX). Produced in 1979, D means AFAIK Dual Channel. Sorry, I'm always
busy and have no time to explain more. But there's a lot of info on
internet, just google "Yamaha CS15D" - it will give you lot of links,
starting with this one:
http://www.vintagesynth.com/yamaha/cs15d.phpAnd you can download Owner's manual from Yamaha Manual Library.
There were also CS01, CS15, CS30L and CS70m...
And CSY1 - combination of organ and synth.
I have never seen CS20/40D... just M (it means Memory).
Daniel Forro
On 1 Feb 2011, at 10:58 AM, David wrote:
> What the... ??? I just saw this video:
> http://www.youtube.com/user/musictrackjp#p/u/1/RV7pdqgLqdM
>
> It's in Japanese and shows off the smaller, monophonic (ok - one
> was duophonic) CS synths from the late '70s. I remember the CS-5,
> CS-10, CS-20M, and CS-40M from local music stores. And I've seem
> videos of the CS-30- which was apparently not sold in the US.
>
> This video shows off something labelled the CS-15D. I've never
> heard of it before. It looks like the CS-20/40D but has a bunch of
> fixed preset buttons replacing most of the knobs. When did they
> make this? Where did they sell it? It looks like Yamaha's answer
> to the Arp Pro-Soloist or a return to the SY-1/2. Anyone ever use
> one?
>
> Thanks for any info!
>
> David