CESYG DUALFO Скачать руководство пользователя страница 22

CV

The  CV  control  determines  how  much  of  the  signal  fed  to  the  CV  jack  is  used  to
modulate  the  Auxiliary  LFO  frequency.    The  control  provides  a  linear  scale,  from  0%
(fully anti-clockwise) to 100% (fully clockwise).

SYNC

The  Sync  input  can  be  used  to  synchronise  the  Auxiliary  LFO  to  an  external  trigger
signal.    The  push  button  allows  you  to  choose  whether  to  synchronise  to  the  rising
(positive)  or  falling  (negative)  edge  of  the  trigger  signal.    Examples  of  trigger  signals
include clocks, gates, keyboard triggers, square/pulse waves, and so on.  You can even
use the reset edge of a sawtooth or ramp waveform as long as the sync edge switch is
set to the corresponding input signal edge.

SHAPE

The Shape control provides manual control of the shape of the triangle wave.  When
set  to  to  the  mid  position  the  Auxiliary  LFO  generates  a  triangle  wave.    With  the
control turned to the left the duration of the rising (left) edge of the triangle is short-
ened, and vice versa for the other direction.  One way to imagine this to think of the
triangle  falling  over  to  the  left  or  the  right.    At  the  extreme  ends  of  the  control  the
triangle wave looks more like a sawtooth or ramp wave form.

If a jack is inserted into the Shape socket then an external voltage can be used to vary
the  shape  of  the  triangle.    In  this  mode  of  operation  the  Shape  control  becomes  an
inverting attenuator: with the control in the middle position the external voltage has
no  effect  on the  shape;  when  turned left  the  external  voltage directly  modulates  the
shape; when turned right the external voltage is inverted and then used to modulate
the shape.  For the technically-minded, the Shape socket is normalised to +5V. 

CESYG DUALFO USER MANUAL

Page 22

Содержание DUALFO

Страница 1: ...CESYG DuaLFO Installation and User Manual Document CE 101 0002A CESYG DUALFO USER MANUAL Page 1...

Страница 2: ...reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photo copying recording or otherwise without the pr...

Страница 3: ...Make beautiful sound CESYG DUALFO USER MANUAL Page 3...

Страница 4: ...CESYG DUALFO USER MANUAL Page 4...

Страница 5: ...ions 17 Controls 17 Output waveforms 17 5 USING THE MAIN LFO 15 Sine Shape Trim VR2 15 Shape Maximum Bias Trim VR1 15 4 ADJUSTMENTS 14 Power on Test 13 Installing the DUALFO 13 Main LFO Normalising Op...

Страница 6: ...CESYG DUALFO USER MANUAL Page 6...

Страница 7: ...ion of the CESYG DUALFO two channel low frequency oscillator LFO for the Eurorack modular synthesizer system CESYG DUALFO USER MANUAL Page 7 Main 0 Out Main 120 Out Main 240 Out Aux Tri Out Aux Sine O...

Страница 8: ...hat use reverse diodes and series resistors where during a fault the diodes conduct the full power supply current through the low values resistors until you notice a burning smell and or smoke before...

Страница 9: ...ency control log scale External CV control of frequency with unipolar attenuator link selectable normalised to either auxiliary sine wave output or bus CV Auxiliary Oscillator Frequency range Approx 2...

Страница 10: ...nuator left negative right positive Power Input 12V to 15V 40 50mA per rail Connector Eurorack standard 16 pin power bus connector Protection Reverse voltage protected missing rail protected Ground Du...

Страница 11: ...ag of M3x6mm screws Make sure you have a space of at least 18HP 91mm in your rack unit and one spare power connection Installing the Power Cable The DUALFO is fitted with a standard 16 pin power heade...

Страница 12: ...power socket on the DUALFO located at the bottom edge of the rear of the PCB Both the header and the connector are polarised to ensure that they can only mate one way As a guide note that the RED stri...

Страница 13: ...sets the source to the sine wave output of the auxiliary oscillator You can change the link to select the CV line on the power bus The link is located just above the power connector Installing the DUA...

Страница 14: ...provided with your DUALFO as a special option or you can purchase them either from CESYG or elsewhere Power on Test Refit the AC power cable to your synthesizer Set the DUALFO Freq controls to maximum...

Страница 15: ...a diode shaper VR2 can be used to fine tune the shape of the sine wave to minimise distortion Normally this is done during assembly but if the unit is subject to excessive mechani cal shock or to a r...

Страница 16: ...CESYG DUALFO USER MANUAL Page 16...

Страница 17: ...s are at fixed phase offsets of 0 120 and 240 degrees Controls The Main LFO has two controls and one external control input FREQ The FREQ control provides manual control of the frequency of the Main L...

Страница 18: ...amplifier and speaker arranged at equidis tant points around a circle Place yourself in the middle of the circuit and the result will be a sound that rotates around you Swap over two of the sine outpu...

Страница 19: ...t 87 of the full length This tells you the amplitude of the result about 87 of the full scale signal about 4 3V If all this sounds complicated it really isn t Try it for yourself with a pencil and rul...

Страница 20: ...CESYG DUALFO USER MANUAL Page 20...

Страница 21: ...puts The second output is a diode shaped sine wave with distor tion below 2 The shape of the triangle wave and also the sine wave can be modulated internally or externally Controls The Auxiliary LFO h...

Страница 22: ...gle wave When set to to the mid position the Auxiliary LFO generates a triangle wave With the control turned to the left the duration of the rising left edge of the triangle is short ened and vice ver...

Страница 23: ...iary LFO One significant difference between the Main and Auxiliary LFOs is the Sync input Put simply the Sync input synchronises the Auxiliary LFO to an external trigger or clock signal It is switchab...

Страница 24: ...CESYG DUALFO USER MANUAL Page 24...

Страница 25: ...evolving sound textures Parameters that could be modulated to varying depths include VCO detuning or unison multiple VCO spreading stereo or 3D panning filter cutoffs and so on In addition synchronis...

Страница 26: ...CESYG DUALFO USER MANUAL Page 26...

Страница 27: ...are intended for you to make your personal notes on operat ing the DUALFO The diagram pages are intended for you to photocopy or scan and print so that you can record patch settings and phase diagrams...

Страница 28: ...PATCH SHEET Name NOTES NOTES CESYG DUALFO USER MANUAL Page 28...

Страница 29: ...CESYG DUALFO USER MANUAL Page 29...

Страница 30: ...NOTES CESYG DUALFO USER MANUAL Page 30...

Страница 31: ...de but is not limited to abusive usage fluid spills excessive voltages on inputs and or outputs Repairs for these types of damage will be charged at usual service rates The terms of this warranty do n...

Страница 32: ...Service History Date Technician Details CESYG DUALFO USER MANUAL Page 32...

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