I took apart a piece of gear to see if I could figure out why it stopped working. I found this on the power supply section of its board:
Well, understanding why that chip decided to blow up is above my pay grade, but I think we found at least one problem…
Chip identified as likely being: https://www.power.com/sites/default/files/product-docs/tny263_268.pdf
Many possible causes for the chip to blow; but rather than diagnose that I’ve decided to simply harvest interesting parts from this device (it has some relays and a few other project-worthy bits and pieces).