Beast Tek Dirty Glitch v2.0 Manual de usuario
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Bill of Materials
Dirty Glitch IO Board BOM
D1, D2, D3 7 Segment Display 0.56" (common cathode) 3
LED1 3mm LED 1
R1,R2, R3, R4 220 Ohm Resistor 1% Red-Red-Black-Black-Brown 4
C1 10uf Electrolytic Capacitor 10uf 1
R5, R6, R7, R8, R9, R10 1K Ohm Resistor 1% Brown-Brown-Black-Black-Brown 6
R11 10K Ohm Resistor 1% Brown-Red-Black-Black-Brown 1
D4,D5, D6, D7, D8, D9, D10, D11 BAT85 Diode 8
S1, S2, S3 SPST Switch 3
SW1 ALPS Rotary Encoder 1
JP1 24 Way Pin Header Single Row MALE 1
JP2 4 Way Pin Header Single Row MALE 1
PA, PB, PC, PD 5K Ohm 16mm Right Angle Potentiometer 4
3.5mm Mono Socket 5
Dirty Glitch Brain Board BOM
IC1 ATMEGA1284P 1
IC2 TL074 OPAMP TL074 1
IC3 7805 5v 1A Voltage Regulator 7805 1
D1, D2, D3 IN4004 Power Diode IN4004 3
Q1 20mhz Crystal 1
C1, C19 100uf Electrolytic Capacitor 100uf 2
C4, C5 22pf Ceramic Capacitor 22 2
C11, C12 220nf Green Cap 224 2
C13, C14 4.7uf Electrolytic Capacitor 4.7uf 2
C15 10uf Electrolytic Capacitor 10uf 1
C17 DO NOT POPULATE N.A.
C22 470uf Electrolytic Capacitor 470uf 1
C2, C3, C8,C18, C20, C21, C23 100nf Blue Monolithic Capacitor 104 7
C6, C7, C9, C10, C16 220nf MKT Capacitor 224 5
R1, R8, R9, R10, R11, R13, R14 10K Ohm Resistor 1% Brown-Red-Black-Black-Brown 7
R2 39 Ohm Resistor 1% Orange-White-Black-Gold-Brown 1
R3 75 Ohm Resistor 1% Violet-Green-Black-Gold-Brown 1
R4, R5, R6, R7, R12 330 Ohm Resistor 1% Orange-Orange-Black-Black-Brown 5
R15 1K Ohm Resistor 1% Brown-Brown-Black-Black-Brown 1
JP1 4 Way Pin Header Single Row FEMALE 1
JP2 ICSP - do not populate 1
JP3 24 Way Pin Header Single Row FEMALE 1
JP4 Shrouded 10pin (2x5) IDC Header (Eurorack Power) 1
20 pin Machine pin IC socket strip 2
7 pin Machine pin IC socket strip 2
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Main PCB / “Motherboard”
Step 1
Take the 40 pin machine pin socket strips and cut one in half (2 pieces 20 pins each) using a sharp utility
knife or side cutters. Also cut 2 x 7 pin pieces from the remaining piece. Tip: You can measure the cut
using the PCB as a guide.
Step 2
Solder the machine pin strips IC into place for IC1 and IC2. Tip: This step can be made a lot easier using a
small piece of scrap metal or rigid cardboard slightly larger than the PCB.
First insert the machine pin strips into place, then sitting the metal/cardboard on top and applying a
small amount of pressure, flip the board over so the pins can be soldered in place.
Tip: Solder only 2 pins of each socket at first to hold them into place. Now flip the board over to make
sure the socket strips are sitting at right angles to the PCB. If required, they can be adjusted easily by
heating the 2 joints one at a time and maneuvering the socket into place.
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When the strip is seated correctly, continue.
Step 3
Now is the perfect time to solder the 20mhz crystal into place. The crystal should not sit in contact with
the PCB. Soldering the crystal now means the machine pins can be used as a guide so that the crystal will
sit approx. 1mm from the board.
Now solder the remaining IC pins and crystal.
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Step 4
Cut the female pin header down into 1 x 24 piece and 1 x 4 piece. Tip: once again the PCB can be used as
a guide, use a small pair of pliers to remove the 25th pin so the blank space can be used as a cutting
guide. Now cut the pin header socket using side cutters, if desired then use a file to clean up the edges.
Step 5
IMPORTANT!!! The female pin header strips must be installed on the REVERSE (non silk screened side).
Install the pin headers into their locations (JP1, JP4) on the reverse side of the board.
Once again use a scrap piece of metal/cardboard so that the board can be flipped over for soldering
without the pieces falling out.
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Only solder 2 pins on each strip, then turn the board over to inspect and make sure the header strips are
seated at a right angle and that they are flush with the PCB board. If required, the header strip can be
adjusted by heating one joint at a time and gently moving the header strip into the correct location.
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Once seated correctly, solder the remaining header strip pins.
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Step 5
Install the 7805 voltage regulator (IC3) into place (refer to photos below to ensure correct orientation if
unsure), take it slowly and give the component enough time to cool down between soldering each pin.
Also install the 3 x IN4004 power diodes (D1, D2, D3). Make sure the polarity of the diodes is correct -
the stripes on the diode should match the stripes on the silk screen. Refer to the photos below if
uncertain.
Once soldered, trim off the component legs using side cutters.
Step 6
Install and solder the 2 x 22pf ceramic capacitors (C4, C5) and the 7 x 100nf blue monolithic capacitors
(C2, C3, C8, C18, C20, C21, C23).
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Step 7
Install and solder the 2 x 100uf electrolytic capacitors (C1, C19) followed by the 10uf electrolytic
capacitor (C15) and the 470uf electrolytic capacitor (C22).
Step 8
IMPORTANT!! The orientation of the shrouded IDC power header is critical. Use the photos and steps
below to ensure it is oriented correctly.
Install the 10 pin shrouded IDC eurorack power socket (JP3). Use the photo below to ensure correct
orientation. Solder one of the pins to hold in it place. Now use the supplied power cable to ensure
correct orientation. If installed correctly, the red strip on the cable should be facing toward the bottom
of the board.
Once the IDC socket orientation has been confirmed using the power cable, solder the remaining pins.
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Step 9
Time for some testing! Double check all solder joints. When you are happy with your work, connect the
power cable to a eurorack power supply so that test measurements can be made with a multimeter.
IMPORTANT: Do NOT do this in a case with other modules installed. If there is a fault with your work, it
could fry/burn/destroy other modules connected to the same power system.
Using a multimeter set to DC volts with a range capable of measuring 5v – 24v, test the voltages at the
following points:
IC2 – connect the positive probe to pin 4 and the negative probe to pin 11.
You should get a reading of between 23v to 24v .. the power diodes used to protect the module against
reverse power connection do cause a small voltage drop of approx. 0.4v
In the photo below, my reading is 22.8v because I am using a 4ft power cable (which causes significant
voltage drop) so that I can assemble and take photos easily.
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