DOEPFER A-154 Manual - Halaman 6
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Halaman CetakA-154
Sequencer Controller
4. Controls
1a Manual Mode (knob)/ 1c Anzeige (LEDs)
! Mode CV (socket) / 1b Mode CV (knob)
Control 1a is used to select the desired mode manually.
This parameter can also be modulated with an external
control voltage (CV) applied to socket ! (e.g. slow LFO,
foot controller, Theremin). Control 1b is used to at-
tenuate the external CV and consequently the influence
of the external CV. The current mode is displayed by
means of the 6 LEDs 1c.
These modes are available:
• Forward
• Backward
• Pendulum
• Random
• CV Controlled
(step position is controlled by an
external CV applied to the First CV
input ")
In addition each mode - except the CV controlled mode
- is available even as One Shot. This means that the
sequence stops as soon as the final step is reached.
For the first 3 modes the number of steps to reach the
final step is exactly defined. For the random mode the
number of steps required to reach the final step cannot
be predicted (that's why it is called random).
6
System A - 100
Which of the steps is the final step depends upon the
selected mode and the settings of the First and Last
step section (see below). Examples: first step = 2, last
step = 7. In Forward/One Shot mode the sequence stops
at step 7. In Backward/One Shot mode the sequence
stops at step 2.
The CV Controlled mode is not available as One Shot
as in this mode the current position is defined by a
voltage. In this mode the position of the sequence is
controlled by the settings of the First section (i.e. the
position of the manual First control 2a, the external CV
" and the corresponding attenuator 2b)
With increasing mode CV (resp. turning the manual
mode control 1a clockwise) the modes are selected in
the order as listed above followed by the same modes
as one shots.
The required control voltage at socket ! to reach all
available modes is about 0...+5V (with attenuator 1b at
it's maximum and Manual Mode 1a at it's minimum
position) .
The current mode is displayed with 6 LEDs. 5 LEDs are
used to display the main mode (forward, backward ...).
The separate LED labelled One Shot lights up if additio-
nally the one shot mode is activated. Example: Both the
"Backward" and the "One Shot" LED light up. This
means that the Backward / One Shot mode is selected.
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