TLDR; This is what the Viking Husqvarna Optima 190 circuit board looks like.
For Google’s purposes, it could also be a logic board, a motherboard, a main board, or even just electronics. Whatever words you need to find this picture.
My wife was sewing one night, 9:15 PM, 3 seams to go, when grandma’s Viking Husqvarna Optima 190 started smelling of burning plastic. We turned it off, took it apart, and were greeted with this:
Not great, but it’s fine. It’s just a resistor. Single-sided circuit board. I’ll just replace it with… [google’s… google more… YouTube… images… eBay…]. Well. I can’t find a picture of this circuit board anymore. I found a great walkthrough on the mechanical parts1, but not a single frame of electronics. Luckily, I was able to find an identical “for parts” sewing machine on eBay with a working circuit board. I just swapped the boards, but if you can’t do that (because they aren’t sold anymore), that’s a 380 ohm 5% resistor. That IC right behind it was also burning the plastic from its heat sink mount, and I’m not sure which failed first. If you’re here because of the same resistor failure, you may need to replace that neighboring IC too. I’m having trouble reading markings on it, but I’ll update if I figure out what it is. If you happen to know, please leave a comment!
- Husqvarna Optima 180 part1 and part2 – https://www.youtube.com/watch?v=nB3-291bQZs and https://www.youtube.com/watch?v=fFamjztqP9s ↩︎
