Quieting a Cheap LCD Projector
There’s an old saying along the lines of “You pay peanuts, you get monkeys”. That’s true of technology, too, but a good hacker can sometimes teach an old monkey new tricks. [Heye] bought an LCD projector for $60 off AliExpress, and it turned out to be rather noisy: the air fan that sucked in air to cool the LED light source made a whooshing noise.
No surprise there, but rather than give up, he decided to see what he could do about the noise. So, he took the projector apart. After some excavation, he realized that the main source of …read more
