[sdiy] VSS 200

[Jerry Gray-Eskue]

The VSS-200 is interesting, did you know "Yo Mama" sampled and reversed
sounds like "I'm a Boy".... maybe I just need to work on my diction...

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Jerry Gray-Eskue
Sent: Tuesday, April 12, 2011 2:41 PM
To: 'Scott Nordlund'; synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] VSS 200

The overlap with the VSS-30 is interesting and intriguing. It would be cool
to add features, that could make it worth spending time on the project. 

I was thinking of using my own MIDI controller design, I already have a good
start on a MIDI controller that I am using in another project.

Thanks,
Jerry


-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Scott Nordlund
Sent: Tuesday, April 12, 2011 10:10 AM
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] VSS 200


I have one and have partly analyzed it. It's a weird design. The sample
based part is the same as the VSS-30. It's mostly one chip to scan the keys
and play the sounds, with an external DRAM. But it's got some kludge stuff
to add an FM chip and disable some of the VSS-30's features that are
superseded by the FM part (auto-accompaniment, presets, demo). It scans the
button panel and keys and then "translates" that to the VSS-30 part by
simulating key presses.

If you add some switches you can restore all the VSS-30's hidden features,
and even play two simultaneous accompaniment patterns or demo songs. If you
added MIDI, you could effectively use it as a double manual keyboard. 

The Highly Liquid MIDI kit is listed as not compatible with the VSS-200. I
inquired: apparently it scans the keys too rapidly. But it is listed as
compatible with the VSS-30.

----------------------------------------
> From: jerryge at cableone.net
> To: synth-diy at dropmix.xs4all.nl
> Date: Tue, 12 Apr 2011 09:36:27 -0500
> Subject: [sdiy] VSS 200
>
> Hi everyone,
>
> I picked up a Yamaha VSS-200 at a flea market, it is an 1988 era sampler.
>
> It caught my eye because of the sampling and it has some voice controls
that
> looked interesting including ADSR envelope controls and some other stuff.
I
> have the owner's manual but could not turn up a service manual or
schematic
> for it.
>
> I was thinking about adding MIDI to it but without a schematic I am not
sure
> if I could do more than just play the keys, it looks like some of the
signal
> path might be analog, but I did not open the case up. It may be pure
> digital.
>
> In any case I would like to find a copy of the schematic and then decide
if
> I want to get side tracked with yet another project...
>
> Thanks,
> Jerry
>
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