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The MIDI2SDS(X)
started out as a re-release
of the MIDI2SDS from Paul
Maddox.
This version, like it's original predecessor, had a limited
TRIGGER output range of
around 2V to around 4V. This limitation was imposed on the module
as a consequence
of some limitations of the MAX529 chip.
PCB Version 3
Later, with the
start of the Panther family of Euro-rack modules, the MIDI2SDS(X)
was updated
to fit in to the Panther family and take advantage of the dual-rail
power supply to allow the lower TRIGGER voltage to be adjusted
down to 0V. This version of the pcb is still available and is
offered as a replacement to the original MIDI2SDS and is as
shown in the picture below.
The pcb design allows the panel components to be aligned in
a straight line while the
TRIGGER outputs are hardwired to the pcb at the rear.
The
earlier (and still available) version of the MIDI2SDS(X)
If this pcb is constructed
using the single-rail power option then the TRIGGER outputs
are
limited to a range from ~2V to ~4V. If the pcb is constructed
using the dual-rail power option
the TRIGGER outputs are extended to 0V and ~4V.
In the MIDI2SDS(X)
Retrofit Kit the MIDI-IN socket and LEARN switch are supplied
as
panel mount components to allow the board to be mounted in a
more convenient
position within the equipment being modified. The LEDs are optional
(although recommended)
but are not supplied in the kit.
Original schematics
and circuit details can be found on Paul's website at
http://www.vacoloco.net/synths/midi2sds
Schematics for the
Version 3 pcb are here
MIDI2SDS(X)
schematics & pcb overlay
Bill
of Materials for Retrofiit pcb
MIDI2SDS(X)
software (V4.0) Version 3 pcbs
Visit
these two links for examples of the MIDI2SDS being used to MIDIfy
a drum machine
http://www.cykong.com/Synths/Tama
TS-305/TamaTS305-MIDI.htm
http://home.pages.at/pullrich/ts305.htm
To
implement these retrofits you will need:-
1 x MIDI2SDS(X) Retrofit PCB
1 x MIDI2SDS(X)
Retrofit Component Kit.
These
2 items will provide you with the pcb and suffcient components
to dress the pcb. This also includes the MIDI-IN socket and
a LEARN switch.
Although not required during normal operation it is recommended
that you install
Trigger Output LED's to provide a visual status during the LEARN
mode.
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