원문 게시자: gilga ,
How to check what is not working in my chime
I've got an electromechanical chime at my business premises. there's a pushbutton outside in the hall and the doorbell inside, powered by the house power supply. I've already checked the pushbutton by shortcutting the wire in the pushbutton: it doesn't ring. So I guess the culprit should be the doorbell itself. I don't really know whether it's using the house power voltage directly or transform it to lower voltage? (I'm in France, it's 220V here) [image|1191044] [image|1191043] [image|1191042] At my disposal I've got a multimeter which I've never really used. How do I check which element could be wrong? Where do I apply the red and black probes of the multimeter?