No luck, same results. Grrrr.......... Ok guess we got multiple issues once again here. It's almost to be expected, why should things start getting easier now, lol. Break out the fluke meter again.
It's no problem Joe. To be honest, I recheck my own work often just to make sure I didn't screw up. I've messed up more than once. We are all human after all, so the lesson to be learned here is presume nothing, check everything.blu_fuz said:Wow.
I installed the wrong resistor!?!?! How the f'k did that happen!?!? Hahaha, sorry bud.
You are wearing anti-static gloves and have an anti-static wristband properly grounded right?Superduper said:Oh and note my very cool makeshift electronics repair workstation, complete with shaggy work surface.
Chris, check out the image below. They will give you an idea of what we are dealing with. Because I have been mostly showing photos of the repairs (bottom, foil side), it might be hard to picture exactly what it is that is being replaced or repaired.Lasonic TRC-920 said:Question:
What would cause all these resisters through out to be popped?
Over voltage?
Storage in bad environment?
No, the tunnels are called vias. They exist for the sole purpose of connecting the top (printed traces) to the bottom copper traces. When the top traces deteriorate but have not completely failed, I will sometimes cut them out of circuit by drilling out the vias. This breaks the connection and takes the deteriorating circuit path out of the equation, otherwise they will be a parallel path and make the new electrical repaired path have the wrong electrical characteristics. Think of this circuit board as a 3-dimensional one, and the top and bottom sides as being different planes. They are connected by the vias.trippy1313 said:So the tunnels are used, to repair from one side of the board to the other, otherwise you'd have to run wire all the way around the board as the only other method. That's what I think I'm understanding.