Today I got my Doepfer MCV4 in the mail. It is an interface that converts MIDI to CV/Gate. CV/Gate was what was used before MIDI to control synths externally. I got this Doepfer interface to finally be able to control my Realistic Concertmate MG-1 synth. MIDI is a standard for every machine but with CV/Gate most manufacturers had their own standard just for their own synths. With my MG-1 it was "Volts per octave" and "S-trig". To get S-trig i had to remove the four screws at the sides and open up the Doepfer and remove a jumper that controlled which kind of trig version that you were using and completely removing the jumper set i to S-trig. After that I reseted it by pressing the Learn button on the doepfer while i powered it up and then hold it until it started to flash and after that press it once. Now it was set to its factory settings which were.
• MIDI channel 1
• reference note 36 (i.e. the lowest "c" on a standard 5-octave keyboard)
• trigger polarity: normal (non-inverted)
• retrigger: off
• CV3: volume (controller #7)
• CV4: modulation (controller #1)
• CV1 characteristics: V/octave
• key assign mode: highest note
One thing left to make it work properly with my MG-1 and that was to change the trigger polarity to inverted since the default mode set it to normal and the MG-1 uses inverted. So I hooked up my Korg EA-1 to it since I was to lazy to hook up it to may computer. To change the polarity to inverted you hade to send a Program Change message to it while it was in Learn mode. I configured the midi filter on my Korg EA-1 so I would only send Program Change messages since ive noticed that all the other midi messages it sent out messed up the Doepfers settings. I pushed the Learn button on the Doepfer so its red diode began showing red and then changed to pattern 8 on the Korg EA-1 which also sent out a Program Change with the value 8 which was the one that I needed to change the trigger polarity from Normal to Inverted. Now it was set up perfectly for my old synth.
• reference note 36 (i.e. the lowest "c" on a standard 5-octave keyboard)
• trigger polarity: normal (non-inverted)
• retrigger: off
• CV3: volume (controller #7)
• CV4: modulation (controller #1)
• CV1 characteristics: V/octave
• key assign mode: highest note
One thing left to make it work properly with my MG-1 and that was to change the trigger polarity to inverted since the default mode set it to normal and the MG-1 uses inverted. So I hooked up my Korg EA-1 to it since I was to lazy to hook up it to may computer. To change the polarity to inverted you hade to send a Program Change message to it while it was in Learn mode. I configured the midi filter on my Korg EA-1 so I would only send Program Change messages since ive noticed that all the other midi messages it sent out messed up the Doepfers settings. I pushed the Learn button on the Doepfer so its red diode began showing red and then changed to pattern 8 on the Korg EA-1 which also sent out a Program Change with the value 8 which was the one that I needed to change the trigger polarity from Normal to Inverted. Now it was set up perfectly for my old synth.
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