Hello everyone, I’m new here but I am at my limit. With some help from a nice fellow on reddit, I was able to diagnose and even fix some of my keyboard issues. I have a leopold FC750R TKL
First my left ctrl, alt, windows key, and z key went bad. I ordered some switches and a soldering iron to fix it. Replacing the switches fixed the z key and the ctrl. Someone on reddit told me it how to test the switches with wires, and we determined I had a bad diode. I ordered some new diodes and replaced the one that had gone bad. Now my ctrl and windows key were good, but then the alt and the forward slash question mark key on the other side of the keyboard, not connected directly by any circuit, went bad. I replaced another couple diodes and my whole left side is fixed, but the QM\FS key is still not working. replacing the switch did not work, and when I use a wire to test it with all the surrounding diodes it works. when I touch a wire between its own two pads, nothing. When I touch the left pad to any diode and press, it registers. When I touch the right pad to any diode it registers. I’ve already sunk 50 dollars into the cost of trying to repair it, i’m just at my wits end.