CM100B
Revision 1.01
AP099
LFO CV <
LFO rate CV.
LFO OUT >
LFO out CV.
KYBD CV > (Cv Out)
This jack makes the [V/octave KYBD CV available for control of external equipment. It
basically ranges 0.083V to 3.083V (three octaves), following the keyboard or sequencer. If
the sequencer is transposed (see paragraph 1-6), CV OUT can range -1V to 4V.
GATE > (Gate Out)
This digital signal follows the GATE status as indicated by the GATE LED. That is, whenever a
note is played on the keyboard or by the arpeggiator or sequencer in playback, GATE OUT
will be high (+5V-nominal).
EXT < (Audio In)
This jack allows an external audio input to be mixed and processed by the Pro- One's filter
and amplifier. The input drives an internal envelope detector which generates a GATE once
the input level has passed the threshold set by the MIXER NOISE/EXT knob. The GATE which
is produced controls the filter and amplifier envelope generators. This GATE can also advance
the arpeggiator or sequencer when these keyboard controls are selected. It overrides both
the LFO/CLOCK and the GATE/CLK IN input (see below).
To enable the gate generator, REPEAT/EXT MODE must be selected. The input is very
sensitive, being drivable by a microphone or electric guitar pickup. Line- level audio can
overdrive the input. The principle for correct adjustment of the GATE generator is to set the
MIX NOISE/ XT knob at the minimum level necessary for consistent or adequate gating.
Observe the GATE LED for aid in adjustment.
MIXER >
Output of the Mixer,
CUTOFF CV <
VCF cutoff frequency [input]
RESO CV <
VCF Resonance CV.
FILTER ENV >
Filter envelope output.
AMP ENV >
Amplifier envelope output.
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