IF no loose wires on top capsule end, then we will need to look at the bottom connector end.

This gets a bit tricky, as we will need to slide the round flange off the top of the tube, in order to push the bottom tube all the way to expose the connectors.

Locate the single silver screw holding the circuit board in place, remove that.

In order to do this, you will need to disconnect the capsule from the circuit board, as well as the bottom cables leading to the battery terminal.

Before you disconnect, take photos of the wiring for both ends of the board so you can re-solder them correctly!