[Jekyll]

Which cackle prop is it? Any pictures? (Of the prop and board)

 

[Jekyll]

Great prop. Nice a big guy. I’d use a heat gun to remove the hot glue from that area and then you can recheck the connections with the red and black wires. Not sure if that black one needs to be resoldered. Also the connections around the LTK5130 audio amplifier chip look a little yellow light that might be fried. Let’s see if anyone else knows this prop and can help you out.

Fundamentally, it looks like he moves his head back and forth, the eyes light up, and there’s some audio. If you can’t repair the board, you can figure out the voltage requirements for the head movement motors and the LEDs and then build a separate system to power those separately.

 

[Jekyll]

Is there a way I could clean the board? Is there something I can safely wipe down with?

I like DeoxIT D5 contact cleaner for that sort of thing. It’s made for removing oxidation and is safe on plastic. As an aside, it’s the only thing that keeps my charging port working on my phone.

If the board got hot enough to release the blue smoke, though, no amount of contact cleaner will help. It’s definitely worth a try, but the board might be fried. You may have to pitch the board and power the lights and motors independently.