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ELMYRA v1.3
by neutral labs
Build Guide
Congratulations on your decision to build the mighty Elmyra. Your life
will change forever due to this experience. If nothing else, you'll be
in possession of this wonderful machine that you likely did not
possess before. Unless, of course, this is not your first build, in
which case I need to tell you that you are a great person.
Panel
First prepare the panel. Place the 4 LED sockets in the positions
shown below and fix them with the nut on the back.
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Summary of Contents for neutral labs ELMYRA
- Page 1 Build Guide Congratulations on your decision to build the mighty Elmyra. Your life will change forever due to this experience. If nothing else, you’ll be in possession of this wonderful machine that you likely did not possess before.
- Page 2 Now put in the 6 touchpads. Y ou must use the plastic washers under the touchpads on the top side! On the bottom side, tighten the nut and do not use any washers. The nut must be in contact with the metal film below.
- Page 3 Do not put any of the pots or switches in at this time. Put the panel aside and continue with the PCB. PCB Bottom Side Solder the bottom side components as described below. If polarity matters, it means you need to pay attention which way you solder the components to the PCB or panel.
- Page 4 Part Type Polarity Notes matters? D1, D2 BAT85 yes Distortion diodes. Can be substituted by BAT54. You may try other Schottky diodes as well, but regular diodes such as 1N4001 won’t have the same edge to them. Ω R1, R15 1 M...
- Page 5 8-pin male no Polarity does not matter for the header header itself, but for the cables plugged into it later on! MCP6002 yes Solder the socket without the IC first. Itsybitsy yes Solder male headers to the MCU. M0 Express Place female headers on the board and plug the MCU board in for alignment.
- Page 6 Part Type Polarity Notes matters? Ω U2 - U11 10 k linear S1 - S8 SPDT no Unscrew the top nut, remove both switch washers for now (keep the knurled washer and discard the anti-rotation one), leave the bottom nut in place (tighten it if needed).
- Page 7 (hand-tight is enough for now) on top of the U2 and U11 pots and flip everything over. Push the LEDs all the way into their sockets. Be careful not to bend their legs. Solder all the top panel components now. It’s a good idea not to put on and tighten all the nuts now.
- Page 8 ● power jack pin 1 (+5V) to PCB pin 2 ● power jack pin 2 (GND) to PCB pin 3 Audio Output Solder 2 wires to the audio output jack. (Your kit either has a 3-pin or 2-pin jack, see pictures.) The wires go to the header J1 on the PCB as follows: ●...
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