i have opened alot of things loike gameboys phones and controllers, and all the circuit boards look exactly the same. so what is it that makes them work differently? what makes the circuit board in my phone work differently from the one in my game boy?

what is a good web site that teach me how to make my own circuit board? like makeing led blink and programing chip? thx

i accidentally broke a retainer clip for the psp’s circuit board that holds the light to the psp, if i hold it in place, it works, but what can i do to fix this? will superglue work?

i ve been taking stuff apart and wondering is it dangerous to touch a circuit board

circuit board

I took apart my TV to get A dvd out of the DVD drive that got jammed up in there. On the way out, I cracked this green circuit board on the back of the TV. The TV will power on, but now there is no picture what-so-ever. Is there a way to fix this or do I need a new TV? Thanks, Relm.

What material is the circuit board in N64 made out of?
here is the picture: http://www.geocities.com/hongwei24/Picture7.jpg

http://www.geocities.com/hongwei24/Picture4.jpg

From what I understand, a trace are those inner coper wire attachments that are engraved in the circuit board right? So in order to cut those, I would need like a razor and dig through the board to cut the wire?

is there any way i can buy a new circuit board and how do i do it

I’m doing a project, and I need a circuit board that converts our 0 to 8 volt AC Current to a 5 V DC Current. Also if you know how could we connect the output to a USB Port. Were trying to convert this AC current to a DC current to charge a device through a USB Port. Thanks!