When I try to use it as a SpectrAlert sync module, it doesn’t silence when using to wires to the alarm. When I try to use to produce the temporal coding, it doesn’t code it at all. It was working for almost 2 years. Any help?
I did find a lose connection underneath:
It looks like that solder joint just holds the heat sink to the PCB. Notice how there are no copper traces running to it on the board. However, if one joint failed its likely there are others (probably from flexing or roughly handling the board) so check to make sure there aren’t any others that have failed.
I hooked up my 2901-9840, and heard that the module was coding it. It just wasn’t completely cutting off the voltage.
Edit: Also, I only removed the board from the plate for taking the photos and replaced it immediately after, so that lowers the chances of those being the cause. Not to mention that that was the only lose connection I could find.
Any help, please? Any other ideas on why it quit on me?
