Doepfer A-190-4 USB/MIDI-to-CV/Gate/Sync Interface
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Ships tomorrow if ordered in the next 1 day, 6 hours and 25 minutes!
The Doepfer A-190-4 USB/MIDI-to-CV/Gate/Sync Interface is a later development of a MIDI-CV interface which translates any MIDI signal into CV and Gate information to control your analog inputs.
A-190-4 is the replacement for module A-190-1 which is no longer avaiulable. The functions of A-190-1 and A-190-4 are nearly the same (Midi In, Midi Out, CV1, CV2, Gate, Clock, Reset). But the operation of the A-190-4 has been improved because a 3-digit LED display is available. The current values of all parameters (like Midi channel, reference note, clock divider) can be read back and modified by means of up/down buttons. In addition A-190-4 is equipped with an USB interface and the external +5V supply is no longer available. Consequently the additional charges for the 5V adapter fall away.
The module width is the same for A-190-1 and A-190-4. In the A-100 basic systems the A-190-1 will be replaced by the A-190-4 from about April 2014.
For more detailed information please look at the user's guide: A190_4_man.pdf
The Scale (SCA) and Tune (TUn) parameters remain unchanged when the module is initialized ! Otherwise the initialization would overwrite the adjusted values. Because of the tolerances of electrical parts there are no fixed values for SCA and TUn which are valid for all modules. The values for SCA and TUn differ a bit from module to module because of the tolerances of electrical parts. In case that the module has been adjusted totally wrong: typical values are 100 for SCA (coarse) and 55 for TUn (coarse).
The module comes with installed bus jumpers for CV and Gate. One has to remove the jumpers if e.g. an A-164, A-190-1, A-190-2, A-190-3, A-185-1 or A-185-2 is already connected to the CV and/or gate lines of the same bus board! If the A-190-3 should be used as CV and gate source for the A-100 bus the CV and gate connections of other CV/gate sources to the A-100 bus have to be removed. Otherwise short circuits are made between the outputs of the CV or gate transmitters !
The gate level of the A-190-3 can be changed from +5V to +12V. For this the jumper on JP10A (behind the CV Note socket, labelled "GATE 5V JP10A") has to be removed and installed to JP10B (behind the 16 pin bus connector, labelled "GATE 12V JP10B").
The module is a USB device or slave in USB mode. It has no USB host function (like computers or laptops with type A USB connectors). Details on the FAQ page of Doepfer's website: USB network principles