I recently fixed a AV switcher (HD cinema stuff with custom programming by a media tech company) this way. The device costed 9k€ back in the day. One day it di

I recently fixed a AV switcher (HD cinema stuff with custom programming by a media tech company) this way. The device costed 9k€ back in the day. One day it died and took the whole room with itself. Because it also controlled the lights via DALI no light could be switched on or off in that room. I figured out that the 24V "Medical Grade" (?) Made in China powersupply was toast. The typical bloated and leaking electrolytic capacitors were no surprise after nearly a decade of 24/7 operation. But there was also an exploded SOIC-14 IC by STM that I could not identify because coincidentally it was just the manufacturer part number that had been vaporized. A search for suspect parts didn't yield any results. I checked ebay and found a used device for 100 Euros and bought it. The used device also had a broken PSU. But the IC was working (and yeah, nothing you would be able to buy). So I swapped the capacitors and everything worked again. A replacement for that unit including programming would have costed my company 20k at least.