I #volunteered at my local Repair Cafe again today. I had fun again, though still not much actual #electronics work - more small appliances and such, and a laptop.
But a lot of small #appliances are like any other consumer-electronics item these days. They're not designed for #serviceability [1] and the electronics in them are generally a weak point - everything's consolidated onto one circuit board, with most of the functionality on one microcontroller or custom chip (depending on the device type and its price). It makes the overall #production cost of the unit #cheaper, but failures tend to be an all-or-nothing affair. Some critical component leaks its #magic #smoke and the side-effect of that is to blow up something else on the board, and the board is not easily available as a spare part. I certainly won't have a spare one in my box of components, unlike whatever the failed #component was if it had been a separate, standardized part.
So there were a couple of "See, here's what blew up, I can't fix it, and a new one will be cheaper than trying to find a parted-out replacement for the failed board".
The lady with the laptop was thrilled with a fairly simple #reassembly of a display bezel that popped its clips when she wiped out on some ice. That felt good.
[1] Getting into them is usually the hardest part, the #newer it is, the #worse it gets. One-way clips that take ages to finangle into releasing. "YOLO engineering" - "no one will ever open this!"
#RepairCafe
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Jonny Clark
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