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System a - 100, A-177, Controls – Doepfer A-177 External Foot Controller (no longer available) User Manual

Page 3

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doepfer

System A - 100

External Foot Controller

A-177

3

3. Controls

1

Scale • 2 Scale

Controls 1 and 2 are used to set the overall range of
the control voltages ( CV 1 or CV 2) put out by
footpedals 1 or 2.

H

Doepfer

’s own design of footpedal is ide-

ally suited to the System A-100, but other
makes can be used. If you do use other
designs, it may happen that the control vol-
tage won’t go all the way down to zero.

In this case, you can use an inter-

nal trim pot to adjust the offset until the pedal
does go to zero. You just need to use a
miniature screwdriver to adjust the screw in
the small blue square trim pots on the A-
177’s circuit board.

3

LED • 4 LED

LEDs 3 and 4 give a visual indication of the control
voltages
CV 1 and/or CV 2 put out by foot pedals 1
and/or 2.

5

LED • 6 LED

LEDs 5 and 6 give a visual indication of the gate
signals
Gate 1 and/or Gate 2 put out by a double foot
switch.

4. In / Outputs

!

CV 1 • " CV 1

CV outputs ! and " are the sockets for the control
voltage CV 1 put out by foot pedal 1. LED 3 shows the
level of the voltage. The sockets are internally connec-
ted ("a mini-multiple").

§

Foot Ctr. 1 • % Foot Ctr. 2

Connect a foot pedal to either or both input sockets §
and %. The connection system for the 6.3 mm stereo
jack plug adopted by Doepfer is shown in fig. 1.

H

Unfortunately, not all manufacturers follow the
same system.

Doepfer

foot pedals are the

only ones we can guarantee will definitely work.