Music Thing Modular TURING MACHINE Mk ii Instructions Manual
April 20th 2016 www.thonk.co.uk 1
TURING MACHINE Mk ii
(APRIL 2016 ONWARDS)
Eurorack DIY Kit
Instructions
Version 1.01
Music Thing Modular Turing
Machine Mkii version
PLEASE DO NOT LINK TO OR REDISTRIBUTE THIS
DOCUMENT WITHOUT PERMISSION FROM THONK
For the most recent version of this
document please visit –
https://www.thonk.co.uk/documents/turing2016/
Refer also to the Music Thing
documentation here -
https://github.com/TomWhitwell/TuringMachine/
For all technical support please create a
Github account and log an issue here -
https://github.com/TomWhitwell/TuringMachine/issues
Chat about the build here –
https://www.muffwiggler.com/forum/viewtopic.php?t=159116
All Thonk kits are sold under our standard Terms and Conditions -
http://www.thonk.co.uk/faq/
DIY INSTRUCTIONS
This document gives detailed instructions that assume you have purchased a
complete Turing Machine kit from www.thonk.co.uk after April 2016, it also
assumes no previous knowledge of electronics.
To learn to solder try https://www.youtube.com/watch?v=IpkkfK937mU and
the Adafruit guide to excellent soldering – http://bit.ly/1l77tF4
Watch and understand that whole YouTube video! If you’re not achieving the
results shown in the video then you need to buy new tools or seek advice.
You will not end up with a working unit otherwise.
TOOLS REQUIRED
Soldering iron, snipe nose pliers, wire strippers, small flat head screwdriver
and diagonal cutters AKA snips AKA side-cutters. A Digital Multimeter is
always helpful for checking for bad solder joints and continuity. Thonk sell a
range of inexpensive tools here - http://bit.ly/1jxqF3n
April 20th 2016 www.thonk.co.uk 2
TURING MACHINE Mk ii
(APRIL 2016 ONWARDS)
Eurorack DIY Kit
Instructions
Version 1.01
SOLDER JOINTS
Your solder joints should look like those shown as ‘OK’ below, they should
have that neat conical shape on BOTH sides of the PCB. If they don’t look
the same on both sides then stop! Work out why from the soldering guides
linked and don’t continue until you are getting those results.
This isn’t about perfectionism, you are very likely to end up with a destroyed,
damaged or defective unit if you’re not hitting that standard.
This photo is from the Adafruit guide to excellent soldering http://bit.ly/1l77tF4 and is reproduced under an Attribution-Sharealike
creative commons license - http://creativecommons.org/licenses/by-sa/3.0/
April 20th 2016 www.thonk.co.uk 3
TURING MACHINE Mk ii
(APRIL 2016 ONWARDS)
Eurorack DIY Kit
Instructions
Version 1.01
TURING MACHINE BUILD INSTRUCTIONS
1.
To start with we advise emptying the
bags into two separate bowls or
containers so it makes it easier to
find parts.
This document has hi-res images.
ZOOM IN for a closer look
2.
Start with this PCB which we will call
the IC PCB
3.
First find the 10K resistors.
As you can see there are six
resistors listed for the IC PCB:
R1, R8, R14, R15, R16 & R24
4.
Solder the six 10K resistors into
positions R1, R8, R14, R15, R16 &
R24 as shown. You should have four
10K resistors left over for the other
PCB.
Note! Make sure your solder joints
look like the joints shown on page 2,
with solder coming through on BOTH
sides of the PCB.
If you’re not achieving this quality of
solder joint then consider changing
your iron settings or get a new
soldering iron tip, or a better solder
brand.
April 20th 2016 www.thonk.co.uk 4
TURING MACHINE Mk ii
(APRIL 2016 ONWARDS)
Eurorack DIY Kit
Instructions
Version 1.01
5.
Solder the single 47K resistor into
position R6 as shown
6.
Solder the single 100K resistor into
position R4 as shown
7.
Solder the two 1N4001 diodes into
the positions as shown.
NOTE! Orientation of this part is
vital, the module will not work if they
are the wrong way round.
April 20th 2016 www.thonk.co.uk 5
TURING MACHINE Mk ii
(APRIL 2016 ONWARDS)
Eurorack DIY Kit
Instructions
Version 1.01
8.
Solder the two Ferrite Beads into
place as shown.
9.
Next solder the eight IC sockets
into place. Make sure the notches in
the sockets match the notches on
the silkscreen.
3 x 14 pin 4 x 16 pin
1 x 8 pin
10.
Next find the Capacitor bag and
identify the six 1n capacitors (they
are on a card strip, orange and
labeled ‘102’).
April 20th 2016 www.thonk.co.uk 6
TURING MACHINE Mk ii
(APRIL 2016 ONWARDS)
Eurorack DIY Kit
Instructions
Version 1.01
11.
Break off four of the 1n caps and
save two for later.
Solder those four 1n caps into
positions C1, C2, C3 & C4.
12.
Next identify the twelve 100n
capacitors (they are on a card strip,
orange and labeled ‘104’).
13.
Break off seven of the 100n caps
and save five for later.
Solder those seven 100n caps into
positions C19, C20, C21, C22, C23,
C24 & C25.
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