Elektron Musical Instruments

On Fri, Jan 21, 2000 at 03:24:20AM +0000, Ernie wrote:

> Whenever I use pitch-bend or the mod wheel on my prophecy, the SID
> resets.  This happens with or without the computer/midiman box.  I've
> tried changing all the parameters in the Prophecy but it still
> happens.  Is this a known problem or do I have a Sick SID :(

I get the same problem...  except it's keypress events (IE me plunking
keys on my DX5 and generating MIDI events) along with MIDI sync.  After
checking out my power supply on a scope and watching the ripple get down
below 5.25v, I assumed that the extra MIDI events were causing the
microcontroller in the SID to do extra processing, sucking extra
current, causing a voltage drop, which causes a reboot.

Hey Elektron -- I'm sure you guys have MIDI sequencers that can generate
MIDI sync signals, right?  I've been able to replicate this problem with
three different sync sources:  casio CZ-230S, roland TR-707, and
MSQ-700.  Take midi sync, add to sidstation, fold in extra MIDI events,
and _blammo_ instant reboots.  Fold in pitch or mod wheel events, and it
reboots even faster.

> Btw, it's not the PSU

I've been meaning to either drag a scope home or my sidstation and a
small MIDI keyboard to work and troubleshoot this thing once and for
all...

-- 
  Aaron J. Grier | "Not your ordinary poofy goof." | agrier@...
  "Time Correct function allows automatically correcting slight variation
   of your key touching manner."  --  Roland MSQ-700 manual