VC Logics - build guide

Start populating the PCB with all SMD components.

The voltage range of the CV inputs can be se set to 8Vpp or 10Vpp depending on the value for R18 & R24, check the details in the B.O.M

With a 10Vpp range the input could be (depending on the possition of the potentiometer) +10V, ±5V or -10V.

Once all SMD it's done place the though hole components -do not solder them- this is needed to get the correct position of the LEDs. I recommend a plastic cap to avoid bleeding between colours.

Solder the leds so they touch the panel.


Once the leds are soldered take out the jacks, place the female headers and carefully solder them.

Now solder the rest of the though hole components. I recommend to solder the jacks with the panel and nuts placed to avoid mechanical stress.

The USB connector of the Arduino Nano has to be facing up, and the red stripe of the power cable in the left side.

Download the firmware and flash the Arduino.

There are several methods to do that, with Xloader or the Arduino IDE, the procedure is described in the Step Fader manual.