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MCVC 

DIY Manual 

 
 

©2019 Majella Audio  

 

 

 

Minijacks (17x) 

Take care on this one! 

We  advice  to  (without  soldering)  place  the 
jacks into the PCB (yellow marked, figure 4). 
Then place the panel on the jacks. Carefully 
turn  around  the  MCVC  and  lay  it  down  on 
supports, as shown below in figure 5:  

 

Figure 5: 

support 

 

Solder one pin from each connector.  Make 
sure  to  press  the  panel  so  that  each 
minijack  connector  is  tight  pressed  to  the 
PCB  when  soldering  the  pin.  Check  if  all 
minijacks  fit  tight  between  the  panel  and 
PCB. Then solder the rest of the pins.  

 

 

 

Figure 4: 

3.5 mm minijacks (YELLOW) 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for MCVC

Page 1: ...MCVC DIY MANUAL Version 1 0...

Page 2: ...her questions or queries please contact support majella audio com SPECIFICATIONS Below are the specifications of the MCVC Dimensions 128 5 x 70 8 14 HP x 15mm Doepfer A 100 compatible 16pin Power Usin...

Page 3: ...mum basic soldering tools and a Digital multimeter to finish this module Required tools Soldering iron station Soldering tin Wire cutter Multimeter minimal 3 decimals Trim screwdriver flat 2 mm Allen...

Page 4: ...s on the top side of the MCVC printed circuit board PCB The yellow marking in figure 1 shows its placement Please note the orientation of the IC socket The notch in shows where Pin 1 of the socket is...

Page 5: ...MCVC DIY Manual 2019 Majella Audio 5 Capacitors 12x There are 12 capacitors 100nF that need to be soldered The placement is shown in figure 2 yellow markings Figure 2 100nF capacitors placement YELLOW...

Page 6: ...Audio 6 Trimmer 1x Now we solder the trimmer See figure 3 for its placement yellow marking Mind its orientation The small trim screw should be pointing towards the left as shown in figure 3 yellow mar...

Page 7: ...e jacks Carefully turn around the MCVC and lay it down on supports as shown below in figure 5 Figure 5 support Solder one pin from each connector Make sure to press the panel so that each minijack con...

Page 8: ...tch 1x Next up is the switch It should be placed as marked yellow in figure 6 Make sure it s tight to the PCB When soldered toggle the switch downwards this will make it easier to fit the panel on top...

Page 9: ...rs 1x 16pin 1x 6pin The 16pin header and the 6pin header should be placed on the bottom side of the PCB the back of the module This is show in figure 7 yellow marking MIND its orientation The Notch is...

Page 10: ...ant The anode positive long leg is placed to the left for LED 1 3 and placed to the right for LED 4 This is shown in figure 9 The anode positive long leg is marked with a red dot in figure 9 Figure 9...

Page 11: ...MCVC DIY Manual 2019 Majella Audio 11 MIDI connector 1x Now we are going to solder the MIDI connector as shown in figure 10 Make sure its straight Figure 10 MIDI DIN connector YELLOW...

Page 12: ...potentiometer until a voltage of about 10 6V is set Step 2 Connect a Midi keyboard and play A notes Measure the output pitch voltage on channel 1 See figure 12 Play note A in different octaves until...

Page 13: ...panel It is however possible to tune the MCVC while the panel has been placed Place the two spacers standoffs yellow marking on figure 13 and screw the black 3mm screws from the back PCB Place the pan...

Page 14: ...e 12 100nF Capacitors 1 6n137 Optocoupler 1 8 pin IC socket 4 RED LED s 1 DIN MIDI connector 1 Toggle Switch 1 6 pin IDC header 1 16 pin IDC header 17 Minijacks Minijack connectors 1 10k Trimmer 2 Sta...

Page 15: ...Special thanks to Rob Cottam MCVC User Manual version 1 0 23 10 2019 2019 https majella audio com support majella audio com Designed and made in the Netherlands...

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