Recent content by shakattack

Thanks for all the replies. Managed to replace the lm317 voltage regulator on the PCB and reinstall to get everything working again. I put the bell + into a 12V supply powered from mains.

Thanks! Okay yes I've managed to do it and power using a mains 12v adapter

Ive just measured with multimeter and mine behaves a bit different. The T and A wires (in SCB header) are both at 12V and the Bell + and - are both at 0.1V. Am I missing something?

Thanks! Will that work with the other bell connections disconnected? Seems like as soon as I remove the tamper one it starts sounding.

I am looking to swap out a faulty PCB on an accenta G4 alarm. When I disconnect mains and remove 12v battery the bell sounds. I assume it's the bell tamper. How can I disable this / silence bell during the PCB replacement preferably without climbing up to the bell box? Thank you!