So I have a problem with my old laptop. Internal monitor is not working. External is working. So I tried to understand what's the problem. I tried to check if inverter is broken. It get's a good 19V ...
After 15 years of use, one of my Alps mechanical selector switches (metal contact spring dragging across metal tracks) had developed oxidised/dirty contacts. After some cleaning with alcohol and ...
I have a pretty expensive set of philips headphones with a volume control on the lead that lost sound in one ear, I couldn't fix it and keep the original plug. Having removed it, I'm at a loss as to ...
I have a 2.1 small sound system that makes a high frequency noise when turned on, whether the input is grounded or not. I've opened it and measured the frequency of that noise with a scope and it is ...
I have a circuit (from a RC car) that uses a 5610 transistor, which can't find in store. Is there any equivalent transistor? Here are pictures of the board (click here for high resolution images): ...