DOEPFER A-155 Manuel - Page 5

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4 CV knobs (upper row)

You use the CV knobs 4 (upper row) to set the

voltage output for each step in the upper analog CV

row. The control voltage set for each step is output at

the upper Pre Out § socket.

The range of voltage output can be controlled with

the range switch 6. Three very accurate voltage ran-

ges are provided (see below) so that the upper analog

CV row is ideally suited for precise VCO pitch control.

5 CV knobs (lower row)

You use the CV knobs 5 (lower row) to set the voltage

output for each step in the lower analog CV row. The

control voltage set for each step is output at the lower

Pre Out § socket.

You use the Scale control 7 to adjust the range of

the voltages controlled by the CV knobs.

If for any step you patch in an external CV /

audio input (socket $), the corresponding-

knob in the lower row doesn't put out its own

voltage.

Instead, it acts as an attenuator for the

external CV / audio signal, before sending it

to the lower Pre Out output §.

System A - 100

6 Range

The position of the Range switch (a three-way toggle

switch) 6 selects the precise voltage control range,

within which the upper row of CV knobs 4 will operate.

There are three ranges to choose from:

• up :

• centre : 2 V

• down : 4 V

The maximum voltage is obtained by turning the knobs

fully clockwise.

7 Scale

Control 7 sets the range of control voltages, within

which the lower row of CV knobs 5 will operate. If an

external CV / audio signal is patched into any of the

sockets $, the scale control affects the amount of

attenuation the CV knob will produce on that voltage.

8 Glide

The internal slew limiter's rate is set with control 8.

If for the current step in a sequence (e.g. step three)

the slew limiter is switched in (by a "low" control

signal at the Glide Ctrl. § socket), the control voltage

sent to output Post Out § doesn't jump instantly from

the voltage at the previous step (in this example, step

two). Instead, it glides gradually to the new voltage, at

Analog / Trigger Sequencer

1 V

(i.e. one octave)

(i.e. two octaves)

(i.e. four octaves).

A-155