PolyDAC
(X)
Manual
Elby Designs – Laurie Biddulph
Kariong, NSW 2250, Australia
www.elby-designs.com
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Using the PolyDAC(X)
To use the ASSIGN mode, hold the Assign button for approximately 2 seconds, the MIDI
light will come on solid for a moment and then flash once. This will signify that it is waiting
for the first MIDI CC (CC1) to be assigned. Next send a MIDI CC command from your
controller, the MIDI light will light solid for a moment, and then flash twice, it will now wait
for the second MIDI CC (CC2) to be assigned.
If you don’t send anything for a while, the unit will exit the ASSIGN mode and wait for MIDI
data as per normal, without any changes being made to the current MIDI CC.
You have 4 assignable MIDI CCs, by default they are as follows:-
•
CC1 = 74 (cut-off)
•
CC2 = 7 (volume)
•
CC3 = 5 (portamento)
•
CC4 = 2 (breath controller).
The MIDI LED will light whenever a valid command is received that the PolyDAC(X) acts
upon including note data, pitchbend, controller etc.
The 4 voice LEDs light when a voice is active.
External PITCHBEND and MODULATION WHEEL connections
Please refer to the enclosed wiring documents for details on terminating an external
PITCHBEND and MODULATION WHEEL. For PolyDAC(X)s fitted with jacks incorporating
a double-pole switch the plugs are wired as normal. For PolyDAC(X)s fitted with jacks
incorporating only a single-pole switch readers should note that the MODULATION
WHEEL connector needs to be wired differently.
PolyDAC-1U
The PolyDAC-1U builds the PolyDAC in to a 1U full width 19” sub-rack. Supplementing the
PolyDAC in this build is a small power supply module which allows the unit to be powered
from either a single-rail DC supply.
The plug-pack should:-
1) Supply a well-regulated 15VDC @ 250mA.
2) Have a 2.5mm DC Barrel connector with Tip = +ve.
When this unit is delivered it will not have the Rack Ears installed. Carefully prise onpen
the case by teasing the top section away from the rest of the assembly. Slide in the
supplied Rack Ears, replace the top section ensuring that no wires get trapped between
the case support pillars, and secure using the 4 screws supplied.
