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A-191, System a - 100 – Doepfer A-191 Shepard Generator/16xMIDI-CV Interface (no longer available) User Manual

Page 6

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A-191

MCV 16

System A - 100

doepfer

6

4.2 Indicators and controls

1

LEDs

The LEDs 1 indicate the frequency of the internal
LFOs. They indicate the state of the sawtooth signal
at output S0 and/or the triangle wave at output T0 .

2

Freq. + • 3 Freq. –

Buttons 2 and 3 have a double function in the MIDI-
CV interface:

Setting LFO frequency

Pressing buttons 2 or 3 increases and/or de-
creases
the frequency of the internal LFOs.

While buttons 2 or 3 are pressed, LEDs 5 and 6

blink to show the increase or decrease in the LFO
frequency. If you reach the upper or lower limit of
the frequency, the LED stops blinking.

H

It’s easier and definitely more precise to
alter the LFO frequency by MIDI controller
#92
.

Setting the MIDI input channel

If you simultaneously hold down buttons 2 and 3,
"learning mode" is activated. This is signalled by
LEDs 5, 6 and 8 all flashing at once.

You can now set the MIDI channel you want the
MCV16 to respond to. To do this, send a valid MIDI
controller
(see table 1) to the A-191. This automati-
cally ends learning mode, the LEDs go out, and the
MIDI channel of whatever controller was used beco-
mes the input channel for all the MIDI data sent after
this.

LFO frequency and MIDI- input channel are only tem-
porarily stored, unless you save them by pressing
button 9 (see below).

H

The labels on LEDs 5 and 6 ("Fast", "Slow",
"--") don’t have a function yet in MIDI-CV
mode, but are hoped to have in a future
update.

9

Reset / Store

To save the settings for MIDI input channel and LFO
frequency
press button 9.

LEDs 5, 6 and 8 light for about a second to confirm
the save procedure has succeeded. At the same time,
all CV outputs are set to their default settings (see
table 1).