Beast-Tek Instruments Parasite V1.2 User manual
www.beast-tek.com Parasite Build Guide Page 1
Parasite V1.2
BUILD GUIDE
www.beast-tek.com
www.beast-tek.com Parasite Build Guide Page 2
Parasite IO Board BOM
R2, R4, R5, R6 9mm Round shaft 10KB Potentiometer 104
4
R1, R3 9mm T18 shaft 10KB Potentiometer 104
2
R7, R8, R9, R10, R11, R12, R13, R14,
R15, R16, R17, R18 100K Ohm Resistor 1% Brown-Black-Black-Orange-Brown 12
C1 100nf Blue Monolithic Capacitor 104
1
SW1, SW2 SPDT Toggle Switch 2
SW3, SW4 1P4T Slider Switch 2
JP1, JP2 9 Way Pin Header Single Row MALE 2
PJ301BM "Erthenvar" 3.5mm Mono Jack 6
Parasite Main (CPU) Board BOM
IC2 7805 5v 1A Voltage Regulator 7805 1
IC4 79L05 -5v 0.1A Voltage Regulator 79L05 1
IC3 ATMEGA328P-PU 1
IC1, IC5, IC6 MCP602/MCP6022 High precision op-amp 3
Q1 20mhz Crystal 1
R1 100uH Inductor R.F. Choke 1
C8, C9 22pf Ceramic Capacitor 22 2
D1, D2 IN4004 Power Diode IN4004 2
RX, TX 3mm Led 2
C1, C4, C5, C6
,C7, C11, C12,
C13 100nf Blue Monolithic Capacitor 104 8
C2, C10 100uf Electrolytic Capacitor 100uf 2
C3 10uf Electrolytic Capacitor 10uf 1
R11, R12 220 Ohm Resistor 1% Red-Red-Black-Black-Brown 2
R2 10K Ohm Resistor 1% Brown-Black-Black-Red-Brown 1
R3, R4, R5, R6, R7, R8, R9, R10,
R14, R16, R17, R18 100K Ohm Resistor 1% Brown-Black-Black-Orange-Brown 12
JP1, JP2 9 Way Pin Header Single Row FEMALE 2
RECEIVE, TRANSMIT 3 Way Pin Header Single Row MALE 2
ICSP ICSP - do not populate
POWER Shrouded 10pin (2x5) IDC Header (Eurorack Power) 1
`
www.beast-tek.com Parasite Build Guide Page 3
IO Board – Step 1
Lay the IO Board PCB down on a nice flat, even surface. Seat the two 1P4T switches so they are
sitting above the PCB and the pins are resting on the surface under the PCB (These switches
need to be raised slightly from the PCB so they are accessible).
Solder ONLY ONE side pin with the board sitting flat – DO NOT raise the PCB and push the
switch down.
Once the soldered, reheat and adjust the switches so that they are at right angles and will align
with panel. DO NOT solder any more pins until right at the end – just in case you need to adjust
them.
www.beast-tek.com Parasite Build Guide Page 4
IO Board – Step 2
Install and solder the twelve 100K resistors and the 100nf capacitor C1.
www.beast-tek.com Parasite Build Guide Page 5
IO Board – Step 3
Cut two pieces of header from the male header pin strip. Install and solder one pin, inspect to
make sure they are sitting even and at right angles, then solder the rest of the pins.
IO Board – Step 4
Install the brass stand-off using a 6mm M3 screw.
www.beast-tek.com Parasite Build Guide Page 6
IO Board – Step 5
Seat the potentiometers, SPDT switches and jacks carefully on the PCB. Do NOT solder yet.
www.beast-tek.com Parasite Build Guide Page 7
IO Board – Step 6
Carefully slide the panel over the components. Place the nuts onto the SPDT switches and
finger tighten.
www.beast-tek.com Parasite Build Guide Page 8
IO Board – Step 7
Make sure the 1P4T switches are aligned with the cut out holes on the front panel. If they were
not at right angles then you will need to remove the nuts, panel and pots/jacks etc and revisit
Step 1.
www.beast-tek.com Parasite Build Guide Page 9
IO Board – Step 8
Place four jack nuts on to the outer jacks finger tighten only. Place washers and nuts onto the
two T18 potentiometers and again finger tighten only. This should create enough tension so
that you can flip the board over without everything falling apart. You may have to add
additional nuts on to the pots if this is not the case.
www.beast-tek.com Parasite Build Guide Page 10
IO Board – Step 9
Flip the module over (gently!) and solder one pin of each jack, pot and switch. Flip the module
on its side and make sure everything is sitting flush and neatly. If something is misaligned, you
can reheat the single pin and make adjustments as necessary.
www.beast-tek.com Parasite Build Guide Page 11
IO Board – Step 10
Now that everything is seated nicely, solder the rest of the pins. Pay close attention to the 1P4T
switches – you don’t want to solder the single pin holding it in until last – heating that pin will
make the switch fall out and you will need to go back to step 1. Slowly and carefully solder the
pins of the 1P4T switches – they are sitting flush with the bottom of the PCB so make sure you
get a good solid solder joint.
www.beast-tek.com Parasite Build Guide Page 12
IO Board – Step 11
Once everything is soldered, flip the board back over and tighten all of the nuts past finger tight
and then install all of the knobs.
www.beast-tek.com Parasite Build Guide Page 13
Main Board – Step 1
Install and solder the 10K resistor R2.
www.beast-tek.com Parasite Build Guide Page 14
Main Board – Step 2
Install and solder the two 220R resistors R11 and R12.
www.beast-tek.com Parasite Build Guide Page 15
Main Board – Step 3
Install and solder the twelve 100K resistors R3, R4, R5, R6, R7, R8, R9, R10, R14, R16, R17 and
R18.
www.beast-tek.com Parasite Build Guide Page 16
Main Board – Step 4
Cut the IC socket strips to the appropriate sizes. Install and solder them.
www.beast-tek.com Parasite Build Guide Page 17
Main Board – Step 5
Install and solder the 20mhz crystal Q1.
www.beast-tek.com Parasite Build Guide Page 18
Main Board – Step 6
Install and solder the two 1N4004 power diodes D1 and D2 along with the 100uh inductor R1.
www.beast-tek.com Parasite Build Guide Page 19
Main Board – Step 7
Install and solder the two 22pf capacitors C8 and C9.
www.beast-tek.com Parasite Build Guide Page 20
Main Board – Step 8
Install and solder the eight 100nf capacitors C1, C4, C5, C6, C7, C11, C12 and C13.
