Merlin rollerdoor (Australian garage door brand) stopped working, when investigating I found a bug had shorted itself across an IC (labeled HVS004).
Luckily Merlin sells the whole replacement unit for only $449AUD. Before I pull the trigger on that I was wondering if anyone here could advise me on my chances of success if I just replaced the burnt bit.
I’m happy with larger electronics but I’m struggling to even identify any fuses on the board to check.
I’m also unable to find a replacement IC online as the code on it seems to be associated with some kind of blue LED. (I also don’t know for sure if the IC needs to be programmed or if it is just standard)
The back of the board is fine, just thru-hole solder connections.
here are some more photos(new link, should work now), hopefully in good quality.
Thanks in advance
It seems like the Imgur album only has a photo of the back of the board. I think HVS004 might be the wrong number, can you take a close up photo of the chip (and surrounding circuitry) with a flash for a clearer view?
It's also weird that a bug could have fried itself across a chip that only runs off a few volts. "Bug zappers" usually use at least a few kV. Maybe that IC runs off the 33v line or it was a particularly wet bug, but I suspect that might not be your issue.
hey mate, I've updated the imgur link with more, better quality photos. it might not have been the bug but it sure did short as you can see from the images