DARK ENERGY III - Additional Technical Information – Page 4
To establish other connections than the ex works defaults suitable cables can be used (so called jumper wires or
Dupont wires or Raspberry Pi wires or similar). These are available from electronic shops or Amazon. It is important
to order the female-female version of the cables (not male-female or male-male).
JP13...JP17
are just
soldering points
. If applicable the wire in question has to be soldered directly to the soldering
point in question. Instead of this pin headers with one pin can be assembled to JP13...JP17. In this case the female-
female cables mentioned above can be used too.
Example: when the JP6 jumper is removed socket #8 can be used for other functions: wiring the left pin of JP8 to
JP14 e.g. turns socket #8 into LFO1 rectangle output instead of LFO2 reset input.
Of course the front panel printing is then no longer valid and a suitable label should be used to indicate the new
function of the socket.
Function of the trimming potentiometers (Dark Energy III Voice Board):
Name Function
Explanation
Factory default
P17
VCO Scale
adjusts the 1V/octave characteristics of the
socket "VCO F" or the bus CV
adjusted to 1.00V/octave
P18
VCO Offset
adjusts the VCO frequency offset
64 Hz @ center position of the VCO
Tune
control and
Range
switch in center
position
P19
VCO Octave
adjusts the upper position of the VCO range
switch (+ 1 octave)
adjusted to +1 octave
P20
VCO Octave Switch -
adjusts the lower position of the VCO range
switch (- 1 octave)
adjusted to -1 octave
P21
VCF Scale
adjusts the 1V/octave characteristics of the
socket "VCF F" or bus CV (if the tracking
switch is in the lower position "full")
adjusted to 1V/octave, VCF in self-
oscillation (
Resonance
control fully CW)
P22
VCF Offset
adjusts the VCF frequency offset
~ 10 Hz @ CCW position of the VCF
Frq
.
control, VCF in self-oscillation (Resonance
control fully CW, all VCF modulations off)
