Erica Synths DIY Eurorack Case and Power Supply Kit for EDU Modular System (84 HP) - Manual (Page 8)

8
Now, use a lighter to heat the tubes, so
they shrink around the switch lugs.
Insert the PSU board in the case and fix it
with 8 screws. Connect two wires to the
socket XS1. Mind the connection polarity –
the wire from the switch goes to the
+VIN lug and the wire from side lug of the
DC socket goes to the GND lug.