Hi all! I posted about this a while ago, but never ended up recieving any help.Basically, my apple desktop bus port has stopped working out of nowhere and I'm not remotely sure what could be causing it.I'm almost certain that isn't my keyboard, mouse, or cable that's causing the issue, as the keyboard's internals are in near perfect conditon, no corrosion, as well as the mouse, which I have tried plugging directly into the ADB port, rather than passing it through the keyboard. I've tested the continuity of the cable, it passes through just fine. The port itself seems to be in good condition, I tested the continuity as well. I'm totally clueless as to what it could be, anything helps!I want to say that it isn't even the ADB port causing it, maybe some sort of software lock? I'm really not sure.
And here is the back of the board. Please don't mind the red jumper wire, it's for the clock battery, it was added after the issue started, a solder pad had falled off the battery connection point after swapping the battery holder.