Unknown Paia Keyboard was RE: [sdiy] paia modular 4700 keyboard

[The Old Crow]

On Sun, 23 Dec 2001, Rhen, Kris wrote:

> On a related note, can anyone tell me what this is and how its meant to
> interface to a modular (sorry best pic I got)?
> 
> http://www.stucki.com/krhen/downloads/paia1.jpg
> 
> Can it be used to drive other modulars (Doep, Blacet, AS, etc?)  Looks like
> a printer port on it :-)  Thanks

  That is the "Paia 8782 digitally encoded keyboard".  The DB-25 connector 
has digital outputs on it for key number, strobe and active scan.  You 
would need to use the DAC module and attach it to the connector to 
produce the CV and gate.  For schematics:

http://omega.tellus.vallentuna.se/anders/pdf/8782a.pdf
http://omega.tellus.vallentuna.se/anders/pdf/8782dwg.pdf

  Here is the Paia exponnetial DAC for control of linear VCOs:

http://omega.tellus.vallentuna.se/anders/pdf/8780.pdf

  And the multiple S/H module to provide 4 CVs/gates/etc.  The 8781 
requires a small microcompter/microcontroller running polyphonic CV and 
gate assignment code to work.  This was the 8700 computer from Paia.

http://omega.tellus.vallentuna.se/anders/pdf/8781.pdf

  For control of exponential VCOs, etc.  The DAC module would have to be 
modified to output a linear CV.

--Crow

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