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ELMYRA v1.4

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 Elmyra
build, in which case I need to tell you that you are a great person.

Important!

DO NOT EMPTY ANY OF THE COMPONENT BAGS NOW! The components are grouped
into the bags so that all of them can be identified without having to
look up resistor ring codes. Rather leave everything inside the bags
and take out what you need while soldering.

Summary of Contents for ELMYRA v1.4

Page 1: ...ne that you likely did not possess before Unless of course this is not your first Elmyra build in which case I need to tell you that you are a great person Important DO NOT EMPTY ANY OF THE COMPONENT...

Page 2: ...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 Then solder the 4 pin SMD he...

Page 3: ...to the PCB or panel Diodes have a black line on them which needs to match the line on the PCB Electrolytic capacitors have a short leg that goes on the minus side and they re also marked with a printe...

Page 4: ...r a different touchpad response Don t go below 100k or above 1M R13 R14 R16 R19 10 k no C1 C2 C3 1000 F yes C4 C5 C6 C10 C11 1 F yes C7 3 3 nF no C8 4 7 F yes C9 10 F yes C12 0 1 F yes J1 8 pin male h...

Page 5: ...first and ease it in place Pay attention to polarity Next solder the male header and all capacitors except for the 3 large ones C1 C2 C3 Once more polarity matters except for C7 Then place C1 C2 and...

Page 6: ...der strip apart as needed by making a small cut on both sides with a sharp knife and then snap it along the edge of your workbench Beware You will lose 1 pin for each cut A wire cutter also works You...

Page 7: ...top side of the PCB according to the table below Be sure to put the LEDs all the way in at this time Pay attention to LED polarity DO NOT SOLDER ANYTHING YET OR YOU MAY NOT BE ABLE TO FIT THE PANEL Pa...

Page 8: ...g a screwdriver until they re all in their mounting holes Press the panel into place Once everything is snug put washers and nuts hand tight is enough for now on top of only the U2 and U11 pots and fl...

Page 9: ...end will be needed later to connect the input and output jacks Check the panel and PCB images below and connect as follows panel pin 4 to PCB pin 5 panel pin 3 to PCB pin 6 panel pin 2 to PCB pin 7 p...

Page 10: ...accidental solder connection between lugs Also watch for loose strands of wire especially between the 5V and GND inputs A short in this location might damage your power supply Arrange the wire so tha...

Page 11: ...connect this cable the right way Using the colors from the image above the black wire would go on top J1 pin 1 and the yellow one on the bottom J1 pin 4 Your cable may have a different color scheme Al...

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