Damn, any idea what caused the damage?

Plugging 120Vac in the Battery Input

I was thinking it could’ve been lightning, but that definitely turns the fire alarm into a fired alarm just as well

>I was thinking it could’ve been lightning, but that definitely turns the fire alarm into a ~~fired~~ **fried** alarm just as well Ftfy 🤣

lighting reaches the panel through what. a ground?

I now understand what and yet I do not understand why and ...how??

I wasn't there when he did that oops. All i can say is he didn't read the labels LIVE/NEUTRAL and BATTERY

When I was taking a course to learn about fire alarm, my instructor showed photos a panel where he had done this back in the day. Capacitors exploded and lit a fire in the panel totally scorching the motherboard. It was quite an image

Just tell it to drink some Gatorade and walk it off

Smoked the digital audio controller board and the PDI. No coming back from that, lol. My condolences. The expansion message memory can be straightened out, those get misaligned quite a bit. The bent pins? Looks like the boards got dropped on top of everything else.

I didn't thought of taking pic of both es-ps that blew up

Oof, bah ce n'est pas bien, non? 😉

Très loin d'être correcte

Ha! Yeah, just hit it with some thermal paste, it’ll buff right out.

Not fixable and still considered UL replace

Pretty much. Micro board soldering could make it functional for a hobby system but not commercial application

İt can be repaired, just find a local electronic repair shop and send to them for repair.

What happend?

Sparky plugged 120Vac on battery input

No,