Beast-Tek Instruments Transmuter V1.5 User manual

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Transmuter V1.5
BUILD GUIDE
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Transmuter IO Board BOM
RN1 220R 9 pin 8 resistor network/array 9X-1-221LF 1
RN2 1M 9 pin 8 resistor network/array 9X-1-105LF 1
D1, D2 , D3, D4 , D5, D6, D7, D8 3MM Red LED 8
R1, R2, R3, R4, R5, R6, R7, R8, R23, R24 1K Ohm Resistor 1% Brown-Black-Black-Brown-Brown 10
S1 DT-6 Bush Button Switch 1
JP1 34 Way Pin Header Single Row MALE 1
PJ301BM "Erthenvar" 3.5mm Mono Jack 18
Stereo Thonkiconn Jack 2

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Transmuter Main (CPU) Board BOM
IC1, IC2 74HC595 2
IC6 ATMEGA328P-PU 1
IC3, IC4, IC5, IC7 MCP602/MCP6022 High precision op-amp 4
IC8 MCP4802 Dual 8 bit DAC 1
IC9 TL072 1
IC10 7805 5v 1A Voltage Regulator 1
OK1 6N138 Optocoupler 1
Q1 20mhz Crystal 1
C22, C23 22pf Ceramic Capacitor 22 2
D1, D2 IN4004 Power Diode IN4004 2
D9 1N4148 Signal Diode 1N4148 1
C1, C2, C3, C4, C5, C6, C7, C14, C15, C16, C17, C18, C24 100nf Blue Monolithic Capacitor 104 13
C20, C21 100uf Electrolytic Capacitor 100uf 2
R21, R25, R28, R29 220 Ohm Resistor 1% Red-Red-Black-Black-Brown 4
R27 1K Ohm Resistor 1% Brown-Black-Black-Brown-Brown 1
R26 4.7K Ohm Resistor 1% Yellow-Violet-Black-Brown-Brown 1
R20 10K Ohm Resistor 1% Brown-Black-Black-Red-Brown 1
R17, R18 22K Ohm Resistor 1% Red-Red-Black-Red-Brown 2
R19, R22 100K Ohm Resistor 1% Brown-Black-Black-Orange-Brown 2
LED1 3MM Led 1
JP1 34 Way Pin Header Single Row FEMALE 1
ICSP ICSP - do not populate
POWER Shrouded 10pin (2x5) IDC Header (Eurorack Power) 1
MIDIIN, MIDIOUT 3 Way Pin Header DUAL Row MALE 2

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IO Board – Step 1
Install and solder the ten 1K resistors R1, R2, R3, R4, R5, R6, R7, R8, R23, R24

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IO Board – Step 2
Install and solder 220R resistor network RN1. Note the orientation matters, there is a dot
marking pin 1 as per the photo below. 220R is marked as “221”.
IO Board – Step 3
Install and solder 1M resistor network RN2. Note the orientation matters, there is a dot
marking pin 1 as per the photo below. 1M is marked as “105”.

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IO Board – Step 4
Cut the male pin header strip to size and install and solder into place. Solder one pin first so it
can be easily reheated and adjusted so that it is sitting at a right angle. When its sitting neatly at
a right angle, solder the remaining pins.
IO Board – Step 5
Next install the brass standoff using an M3 6mm screw.

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IO Board – Step 6
Seat the eighteen MONO PJ301BM jacks (DO NOT SOLDER) then carefully slide the panel over
the jacks. Carefully place 6 jack nuts at various locations to help stop it falling apart. Use a book,
a piece of stiff cardboard or timber on top and carefully flip over. Solder ONE pine of each jack
to secure them in place. Flip back over and remove the jack nuts and panel.

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IO Board – Step 7
Cut the ground pin from one of the stereo thoniconn jacks – leave a small stub of the pin
remaining so that it’s possible to tell which side is the ground. This is required because MIDI IN
should not be connected to ground to avoid ground loops. Seat the jack with the snipped
ground pin oriented as per the red arrow below.
ONLY CUT THE GROUD PIN FROM ONE JACK !!! Its required on the second jack!!!

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IO Board – Step 8
Seat the remaining stereo thoniconn jack with the ground pin in its place along with the red
leds and the push button switch – paying close attention to the orientation marked on the PCB.
Don’t solder them just yet!

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IO Board – Step 9
Carefully slide the panel over the components and again finger tighten about 6 or 7 washers.
Flip the panel over and make sure the LEDs are pushed through the panel all the way. Make
sure everything is seated nicely then solder one pin of the thonkiconn jacks, LEDs. You may
need to push the push button switch back up so that its flush with the PCB – if it keeps falling
out you can use a piece of sticky tape or blu-tack etc to hold it in place. Once one pin of each
component is soldered to hold it in place, flip the panel over and finger tighten the remaining
nuts. Make sure everything is seated nicely and when you are happy, solder the remaining
joints then tighten the jack nuts with an appropriate tool.

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Main Board – Step 1
Install and solder the one 1K resistor R27.

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Main Board – Step 2
Install and solder the one 10K resistor R20.

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Main Board – Step 3
Install and solder the one 4.7K resistor R26.

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Main Board – Step 4
Install and solder the one 100R resistor R28.

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Main Board – Step 5
Install and solder the three 220R resistors R21, R25, R29.

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Main Board – Step 6
Install and solder the two 100K resistors R19 and R22.

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Main Board – Step 7
Install and solder the two 22K resistors R17 and R18.

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Main Board – Step 8
Install and solder the 1N4148 diode D9 making sure the band/stripe matches the orientation on
the PCB silkscreen.

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Main Board – Step 9
Install and solder the two 1N4004 power diodes D10 and D11 making sure the band/stripe
matches the orientation on the PCB silkscreen.

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Main Board – Step 10
Cut the machine pin socket strips to the appropriate sizes. Install and solder in place. Use a
book or firm piece of cardboard to hold the sockets in place while flipping over to solder.