Drum Synth Assembly Guide Page 3
Next fit the three snap fit 3.5mm mono sockets.
Note: It is critical that these are really tight to the PCB and the flat edge behind the thread is aligned with the edge of the PCB.
This is to ensure the socket will be in the correct position when you affix the side panels later on.
The snap fit does most of the work, but sometimes light pressure during soldering will ensure the best result.
Place the potentiometers and switches in their footprints but DO NOT solder them yet. We will solder them after a few more steps
The potentiometers should snap into the PCB, sometimes the mechanical legs need pushing outward slightly to get a tight fit.
On the bottom each potentiometer has its value marked: B102 = 1k0, B504 = 500k, A104 = 100k
Test the potentiometer before soldering the rest of the pins. The potentiometer shaft should not rub on the panel when turned, if it rubs repeat the reheating of the joint but apply gentle pressure away from the rubbing point.
When you are happy with the fit solder all the pins and repeat the process for the others.
Note: rubbing will not cause the drum synth to not work, but will cause the potentiometer to have a shorter working life and be more difficult to turn.