Hi, I am having some trouble adding a chime to this doorbell.. I have wired it as per the diagram to a Byron 776 but there is no chime when pressing the button I have one wire going from the transformer going to terminal 0 on the chime and then out of terminal 2 to the doorbell.. Any ideas? Would the resistor make a difference seeing as the chime is 8V? Many thanks in advance for any advice! 20190330_105238.jpg 20190330_105251.jpg Just thinking about this, do I also need to put mains voltage to the Chime?