[sdiy] Yamaha CS-15D schematic

[anthony]

The important question for me is: is it worth having the schematic if you 
don't have the actual synth? I mean are there good bits to try to mess about 
with or is it disappointingly full of CEM parts like the Roland SH-101?


> That machine is truly one of my great all time ebay deals.  Folks picked 
> it up in cali for me for 200 with an a perfect anvil flight case in 
> perfect condition save the keys seem to need a little lube.  They just 
> seem a little sluggish compared to my CS20M with the same movement. 
> Anyway I have the diagram from Yamaha's site but as a service guy of 
> course I'm not supposed to share them.  As you see on my website the CS-15 
> and a lot of others are on the fdisk site.  I'm not sure how they/if they 
> got permission or if Yamaha resents this at all.  Anybody up on Yamaha's 
> attitude on this stuff? -Bob
>
> Richard Atkinson wrote:
>
>> Has anyone seen the schematic diagram for this rather unusual preset /
>> variable monosynth? In one sense it's a more capable synthesizer than any
>> of the CS-5, 10, 15 bunch, even the CS-30, since it has two VCOs, two 
>> VCFs,
>> 2 VCAs and 4 envelope generators. However, half of that is stuck behind
>> preset sounds only, and the modulation capabilities are inferior to all 
>> the
>> previous synthesizers.
>>
>> A prime candidate for modification and modularising, you might say!
>>
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