9.
Install and Solder C1, C2, C4 and C5 (these are directional and must be installed as shown below).
Again all of these parts are the same height and if the opposite side of the board is temporarily supported
soldering will be easy.
10.
Install IC2-4 in the dip sockets on the board. Be careful to install IC2 in the correct location at the front
of the board, IC3 and IC4 both use identical chips. Confirm switch settings all 4 switches should be “on”.
11.
Double check the solder side of the board for any poor solder connections, solder bridges or parts not
properly soldered to the board and fix as required.
The PCB is now complete!
Take a break and give yourself a pat on the back.
12.
Prepare the bottom panel as shown below. Four 4-40x3/8” screws should be inserted through the inner 4
holes in the bottom panel. (Please note one side of the bottom panel may have a nicer appearance than
the other, the nicer side should face down).
13.
Place the 1/8” spacers on the screws, this raises the board above the bottom plate to avoid any component
leads touching this panel and shorting out or causing undesired operation.
