Manual

Synthesizer Voice A-111-5 System A-100 DOEPFER

Trimming Potentiometers Overview

Name Function Explanation Factory default

P17 VCO Scale adjusts the 1V/octave characteristics of the

socket "VCO F" or the bus CV

adjusted to 1.00V/octave

P18 VCO Offset adjusts the VCO frequency offset

64 Hz @ center position of the VCO Tune

control and Range switch in center

position

P19 VCO Octave Switch + adjusts the upper position of the VCO range

switch (+ 1 octave)

adjusted to +1 octave

P20 VCO Octave Switch - adjusts the lower position of the VCO range

switch (- 1 octave)

adjusted to -1 octave

P21 VCF Scale adjusts the 1V/octave characteristics of the

socket "VCF F" or bus CV (if the tracking

switch is in the lower position "full")

adjusted to 1V/octave, VCF in self-

oscillation (Resonance control fully CW)

P22 VCF Offset adjusts the VCF frequency offset

~ 10 Hz @ CCW position of the VCF Frq.

control, VCF in self-oscillation

(Resonance control fully CW, all VCF

modulations off)

R23 Minimum VCA level adjusts the minimum VCA level (i.e. when

VCA A control is fully CCW and all VCA

modulations are off)

10k (a smaller value leads to a smaller

minimum VCA level)

Remark: The specifications in this appendix are only for experienced users. Please do not change the settings of the

jumpers or potentiometers if you do not have sufficient experience. Modules that have been misadjusted by the customer

(jumpers and/or trimming potentiometers) are treated as repairs at the owner's expense ! The warranty is void if the module

is modified or misadjusted by the customer (exception: changing the jumper settings is allowed without loosing the

warranty).