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
For others looking at this, the damaged IC is silkscreened as IC7 (red square in my edit of OPs pic). OP, the fuse on this board is the green SMT device (that I put a green square around). Here's the sales sheet for that fuse.
OP you gave a part number for the blown IC as HVS004, but from what little I can see in the picture I'm wondering if its something else. I've put a BLUE square around another IC8. I'm guessing thats in the same family, from where it is in the board. However, I can't see what the part number is on that one. Can you share that one?
hey mate, I've added changed the link to the album. those two both have the HVS004 code on them which you can see in one of the new images
Much better pictures, thanks! I had suspected that both those ICs work together (and it looks like they do), but I couldn't find any part that matches it in any searches. It could be a specialized ASIC they made, or they could have bought proprietary marked ICs specifically to prevent the kind of repairs you're wanting to do.
Apologies I can't help further, you may be stuck buying a new board. Maybe keep the dead one around in case you need a replacement part in the future.