[A6] A6 internal electronics!

[David Evans]

On Mon, Jan 27, 2003 at 02:54:43AM +0100, evajulin wrote:
> 
> This might be a odd question for this list but im eager to gain
> knowelege of this matter, i hope some of you have opened
> your A6 for pure curiosity

  Well, I did it for a reason; bad photos here:

http://bbcr.uwaterloo.ca/~dfevans/a6_inside/

> 1:What kind of DAC are used for the CV channels?
>  (manufacturer and number).
> 

  It might be internal to the ASICs; can't remember.

> 3:I asume Alesis did design the MUX buffers internally to the OSC and
>    Filt chip, or im i wrong in this asuming?
> 

  Yeah.  ISTR reading somewhere that you feed the ASICs a carefully-clocked
synchronous digital data stream and they arrange for the correct CV to go
to the correct place.  I could be wrong, though, and my extra A6 voice board
is burried under some stuff.

-- 
David Evans          (NeXTMail/MIME OK)             dfevans at bbcr.uwaterloo.ca
Ph.D. Candidate, Computer/Synth Junkie     http://bbcr.uwaterloo.ca/~dfevans/
University of Waterloo         "Default is the value selected by the composer
Ontario, Canada           overridden by your command." - Roland TR-707 Manual