Delptronics ThunderBell User Manual download pdf (Page 8)

ThunderBell Mini Kit Instructions Page 8 of 10

Trigger Jack (±)

The Trigger jack is a 3.5 mm mono jack. Only two of the terminals of the Trigger Jack are connected to the PCB (the

switch terminal is not used). It is very important that the right terminal connects to the right hole in the PCB. Refer to

the above jack diagram and PCB outline, as well as the photo on the previous page. Connect the tip terminal of the

jack to the square hole in the PCB, and the sleeve terminal to the round hole.

CV Jack (±)

The CV (control voltage) jack is a 3.5 mm switched mono jack. All three terminals of the CV jack are connected to the

PCB. It is very important that the right terminal connects to the right hole in the PCB. Refer to the above jack diagram

and PCB outline, as well as the photo on the previous page. Connect the tip terminal of the jack to the square hole in

the PCB, the sleeve terminal to the middle round hole, and the switch terminal to the last round hole.

Trigger Button

Buttons are not polarized, so it does not matter which terminal on the button goes to which hole in the PCB. Make a

note of where the retaining nut is on your button. If the nut goes on the inside of the enclosure (most likely), then the

button must be inserted into the enclosure before it can be connected to the PCB. It is easiest if you do it in this order:

solder the button wires onto the PCB first, then put the button through its hole in the enclosure, then tighten the

button retaining nut, then solder the wires to the button.

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Delptronics ThunderBell User Manual Page 8