All I can see is the following -
Doorbell position - 2 * 2 core wires
1st Chime Position - 2 * 2 core wires
2nd Chime Position- 1 * 2 core wires
I have just got myself a multimeter but it would be the first time I would be using it, so any advise on how I can check if any of the wires are...