[MechaGai]

Just know that when you take it apart, you're only unscrewing the back part of the drum. The sensors are also attached to the bottom part via conduct ribbons, so be sure to open it clamshell style from the top of the drum.

The sensors are under the rubber face, and that is just attached to the other part by rubber pegs, which are a part of the drum face itself. Just pull out holding the peg, and it should come off. To replace the pegs, just stretch it a bit over the hole, and it should snap on back. Also know that the rubber face doesn't come completely off at the bottom unless you screw the pcb off, but that isn't necessary if you're just fixing and cleaning the sensors themselves.

It's KINDA tricky, but that's really all you need to know. Go slow, take your time, and everything should be fine with the controller. If it still doesn't work, then that just means that the contact mesh for the face of the drum is REALLY beaten into, so barring stretching the mesh somehow, it's useless.