Well it wasnt what I done to my computer, but my headphones.
The cable on my Audio Technica ATH-A900X screwed up where only the left channel would work.
So I looked for a guide to repair my headphones.
Couldn't find one for my specific model but one that gave me an idea.
This is the issue, a damaged cable which was causing the right speaker to not work.
I removed the ear cup which needs replacing and replaced and replacements will be ordered
I then removed the 4 screws holding the driver cover
The damaged cable was tied inside but I could see that there was room for my plan to work
I then undone the screws holding the driver to the inner cover
I cut the cable, making sure not to touch the thinner black one.
Another project I am working on can be seen as well.
To enable the mod to fit, I had to widen the inner hole
I added 3 wires,
Blue is left,
Green is right
Black is common
Red magnet wire is +Right Channel
Orange magnet wire is -Right channel
These magnet wires were a pain in the ass to work with.
Finding out which channel was which wasn't overly hard.
Make and output signal on one channel and connect common and test one of the pads and see which is correct.
I added heatshrink over the tabs, as I do not want issues cropping up
And this is what it looks like after reassembly
A decent 3.5mm cable and it all works