|X1||DB-25 male connector w/solder cup connectors||1|
|R2-R4||1/4W 5% 1K resistors||Generic||3|
|R1||1/4W 5% 47 ohm resistor||Generic||1|
Slip the DB-25 socket onto the edge of the PCB so that the pads line up with the solder cups.
Now solder all the pads. Make sure you heat both the pad and cup and that they are soldered together, it's easy to not hit both.