[sdiy] Retrofitting a PS-3100 with an Arduino

[ulfur hansson]

hello list!

first post here, - hello!

I recently managed to acquire a PS-3100 in great condition. it is fully
operational, and i've been having a lot of fun tracking with it, it is an
immensely powerful instrument!

i couldn't help myself but open up the back panel right away, and happened
to have a midi controlled "gate" sketch uploaded on my arduino MEGA on my
workdesk(each pin going HIGH on corresponding note ON message received).

looking through the PS-3100 service manual it looks like I need 10V gate
signals to trigger each individual note - i put together a simple single
transistor configuration to expand the arduino logic up to 10v - alligator
clipped a few pins to the inside of the 60pin honda connector... lo and
behold!! I could trigger a few notes on the PS-3100 from Ableton within 45
minutes!

so my question is - rather than purchasing the rather expensive Kenton kit
(i don't need CC messages, for now....) *is there any reason at all *why
installing the Arduino with 48 simple 10V transistor gates could be a bad
idea, or potentially dangerous to the instrument?

it seems like it could be the most minimally invasive procedure available
for these keyboards....

thanks for reading...!

all the best,
-úlfur
-------------- next part --------------
   hello list!
   first post here, - hello!Â
   I recently managed to acquire a PS-3100 in great condition. it is fully
   operational, and i've been having a lot of fun tracking with it, it is
   an immensely powerful instrument!
   i couldn't help myself but open up the back panel right away, and
   happened to have a midi controlled "gate" sketch uploaded on
   my arduino MEGA on my workdesk(each pin going HIGH on corresponding
   note ON message received).
   looking through the PS-3100 service manual it looks like I need 10V
   gate signals to trigger each individual note - i put together a simple
   single transistor configuration to expand the arduino logic up to 10v
   - alligator clipped a few pins to the inside of the 60pin honda
   connector... lo and behold!! I could trigger a few notes on the PS-3100
   from Ableton within 45 minutes!
   so my question is - rather than purchasing the rather expensive Kenton
   kit (i don't need CC messages, for now....) is there any reason at all
   why installing the Arduino with 48 simple 10V transistor gates could be
   a bad idea, or potentially dangerous to the instrument?
   it seems like it could be the most minimally invasive procedure
   available for these keyboards....
   thanks for reading...!
   all the best,
   -úlfur