Doepfer DIY Synth do-it-yourself analog synthesizer Manual de usuario descargar pdf (Pagina 12)

DIY Synth Kit Page 12 User's Guide

JP3: VCF, VCA and LFO connections

JP3 contains some VCF, VCA and LFO terminals.

ribbon cable pin header top view

Function Explanation Remark / Recommendation

LFO RECTANGLE LFO rectangle output about 10V level (+/- 5V)

VCF LOWPASS VCF lowpass Output Usually connected to a socket labelled

"VCF Lowpass", can be connected

additionally to a potentiometer for

lowpass/notch/ highpass control

VCF CV2 Control voltage input #2 for

VCF frequency

Sensitivity: roughly 1V/octave, e.g. for

FM input (socket with attenuator, e.g.

normalled to ADSR output)

VCF CV1 Control voltage input #1 for

VCF frequency

Sensitivity: roughly 0.5V/octave, e.g. for

manual frequency control

VCA CV Control voltage input for

VCA loudness

Range about 0…+5V, usually connected

to a socket labelled "VCA CV In" with

attenuator which is normalled to the

ADSR output, if more VCA CV inputs are

required VCA CV SUM has to be used

(see JP7)

LFO POT CCW CCW terminal of the LFO

frequency control

LFO POT CENT Center terminal of the LFO

frequency control

LFO POT CW CW terminal of the LFO

frequency control

Connected to LFO control (1M log

recommended)

GND

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 23 24

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Doepfer DIY Synth do-it-yourself analog synthesizer Manual de usuario Pagina 12