Befaco VCMC 1.1 Assembly Manual Download Page 1

VCMC v1.1 - ASSEMBLY GUIDE Rev Jan 2021

THANKS FOR CHOOSING ONE OF OUR KITS!

This assembly guide is a bit different from the other Befaco ones. We will be assembling sections, and testing them one 
by one, so we will not keep building until we make sure it is working nicely.
This will make our build a bit slower and careful, as this is 

quite a tricky build.

Some steps are not obvious, so even if you're an experienced DIYer, please take the time to read the steps thoroughly 
before starting.
If this is your first project, please read this article before you start assembling the kit:

www.befaco.org/howto/

      

VCMC can be assembled as an Standalone unit. During the build we will point out the components you might 
change. Check page 2 for details on this Modification from Eurorack version.

OPEN BAG A

RESISTORS

Qty

Value

Code

Name on PCB

14

100k

Brown, black, black, orange, brown

R6, R7, R11, R13, R14, R15, R16, R17, R18, R19, R20,
R21, R26, R29                                             

11

1k

Brown, black, black, brown, brown

R12, R25, R27, R30, R31, R32, R33, R34, R35, R36, 
R37

4

10k

Brown, black, black, red, brown

R1, R2, R9, R10

5

33k

Orange, orange, black, red, brown

R5, R22, R23, R24, R28 

2

56 ohm Green, blue, black, gold, brown

R4, R8                                                                

1

2k2

Red, Red, black, brown, brown

R3

DIODES

Solder the diodes 

observing their polarity

. The black or white line on the diode must match with the white line on 

the diode symbol on the PCB silkscreen.

Qty

Value

Name on PCB

2

1N5817

D1, D2

6

BAT85

D3, D4, D5, D6, D7, D8

   

FERRITES

Solder the two ferrite beads by using a recycled diode leg passed through each ferrite and proceed as if it were a 
resistor. Ferrite beads don't have polarity.

Qty

Name on PCB+

2

F1, F2

           

        

1

Summary of Contents for VCMC 1.1

Page 1: ...ht change Check page 2 for details on this Modification from Eurorack version OPEN BAG A RESISTORS Qty Value Code Name on PCB 14 100k Brown black black orange brown R6 R7 R11 R13 R14 R15 R16 R17 R18 R...

Page 2: ...ered via the USB port and make it standalone Check every step for your relevant option this is a critical part REGULATORS Make sure it is positioned correctly with reference to the silkscreen outline...

Page 3: ...VERSION SOLDER USB CONNECTOR If your power supply behaves funny or one of the regulators get hot unplug the module immediately Possible errors One of the regulators is reversed Reversed Diode Reverse...

Page 4: ...or example you can use ICVs foam to stick it and make it stable Solder the 1x2 SMD pins as pictured that will be soldered at USB pads With extreme care solder them to the usb pins making sure they are...

Page 5: ...the board Once all pins are in place proceed to solder them all Now we will mount the spacers and the OLED Screen which are located on the mechanical side of the PCB SPACERS Secure the 7 mm spacers on...

Page 6: ...sockets Take care of polarity notch or dot mark orientation Qty Value Name on PCB 2 DG408 IC4 IC5 2 TL072 IC3 IC6 Now we will proceed to mount the jacks MIDI connector button and encoder This part of...

Page 7: ...e sure no legs are bent and all are passing thru their holes A mistake here will cause extreme suffering later If you power the module back in you should be able to check that fader columns move accor...

Page 8: ...is at the very end is CRITICAL as panel is really hard to remove once this connector is soldered Make sure everything works fine before doing so CALIBRATION We will perform now a factory calibration T...

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