Next ensure that the headers are properly aligned, screw the hex screw and the standoff on bottom board.
Place the female headers on button board with the male pins inserted. Now place top board, screw with
the standoff screw and finally, solder the headers to both boards. Just like in the image below.
Enclosure assembly
Before you continue with the UI components, insert the screen window into the front panel.
Place the plastic screen window in the opening with the protective film facing upwards. You might have to
file the panel opening a little bit if you are not able to fit it in. Make sure it is sitting flat and push it all the
way in until it's level with the panel. You may have to press the panel flat against a table. Then take off the
protective film.
Also place the 74LS595 chip in it’s socket. Make sure that it is
oriented properly
! The notches should
match!
Continue with the rest of the UI components, Place the two potentiometers to their respected places on
the board. Push them well until they
sit absolutely flat
on the board, but don’t solder them yet.
Next, place the mono jacks on the board, the buttons and the LEDs.