Erica Synths EDU DIY EG Eurorack Module Kit User Manual

Page 45

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Next, insert the first DIP socket

, hold it in

place and solder one of the pins. Continue
with the

next DIP socket

. Make sure the DIP

sockets

are oriented correctly

– the notch

on the socket should match the notch on the
PCB’s silkscreen. Now, turn the PCB around
and solder all remaining pins of the DIP sock-
ets. Then proceed with the ceramic capaci-
tors. Place the PCB in your PCB holder or on
spacers, insert the capacitors and solder
them like you did with the resistors & diodes
before. Now your PCB should look like this:

In order to save space on the PCB, some of our projects, including the dual VCA, have

vertically placed resistors

. The next step is to place & solder those. Bend a resistor’s legs so

that its body is aligned with both legs and insert it in its designated spot. Then solder the longer
lead from the top side of the PCB to secure it in place, turn the PCB around and solder the

other lead from the bottom. You can insert several resistors at once. Once done with soldering,
use pliers to cut off excess leads.

Place the Envelope PCB in a PCB
holder for soldering or

simply on top of

some spacers (I use two empty solder wire
coils here).

I usually start populating PCBs with lower,
horizontally placed components. In this case,
these are

most of the resistors

,

switch-

ing diodes

and the

power protection

diodes

. Bend the resistor leads and insert

them in the relevant places according to the
part placement diagram above. All compo-
nents on the PCB have both their value and
denomination printed onto the silkscreen. If
you are not sure about a resistor’s value, use
a multimeter to double-check. Next, insert the

diodes. Remember –

when inserting the

diodes, orientation is critical!

A thick

white stripe on the PCB indicates the cathode
of a diode – match it with the stripe on the
component. Flip the PCB over and solder all
components. Then, use pliers to cut off the
excess leads.

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