Doepfer a-110 service manual






















Doepfer A Standard VCO for Modular System AModule A (VCO) is a voltage controlled oscillator. The A produces frequencies in a range of about 8 octaves, of which four waveforms are available simultaneously: pulse, sawtooth, triangle and sine wave. The frequency of the VCO is determined by the position of the range switch. In the A service manual is described how to modify the range. You can control the pulse width of the square wave either by hand, or by voltage control – Pulse Width Modulation or PWM. Width: 10TE / 10HP / mm. Brochures and User's Manuals A user's manual can be obtained as well when you select a product in the products overview and click to the link for the user's guide in the product description. Normally this is located at the end of the product description.


In the A service manual is described how to modify the range. You can control the pulse width of the square wave either by hand, or by voltage control - Pulse Width Modulation or PWM. For more detailed information please look at the user's manual A_www.doorway.ru The adjustment procedure for the A is nearly identical to the standard VCO A that is described in the A Service-Manual on our web site. The A temperature adjustment is not applicable for the A due to the special circuit CEM But the trimming potentiometers have different names for A and A In addition the A service manual is available as an example for the A service manual that is available at extra charges. This document describes also how to modify the sensitivity of the tune control, how to re-adjust the 1V/octave scale and the frequency offset (i.e. the absolute pitch).


Es handelt sich hier um einen Nachbau des A in der Vollausbaustufe, ergänzt um die "Soft-Sync"- und "Linear-FM"- Option, wie im Servicemanual zum A Shahrivar 7, AP and are: D1, D2, C9 (1n), R52 (47kΩ), R42 (kΩ) (the A schematic can be found in the A Service Manual at Doepfer's website). A is a so-called Thru Zero Quadrature VCO. The pitch is then controlled by the exponential section with the manual Tune control and the.

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