mattdibi / redox-keyboard

Ergonomic split mechanical keyboard
MIT License
1.75k stars 163 forks source link

[Help Request] Right half stopped working #171

Closed trainline-fernandomedeiros closed 11 months ago

trainline-fernandomedeiros commented 11 months ago

Hello you awesome folks 😃 ,

Even though I’ve never done any electronics, last year I managed to build myself a Redox with some parts I ordered from Falba. It worked wonders, and I was a happy ergo kb user… up until a while ago.

I was happily typing when suddenly, the right half of it stopped working. My keystrokes are not registered. The RGBs only display some red lights instead of the colours I was using.

The left (master) part is working fine. I tried replacing the TRRS cable, but the same issue (So it’s not the cable). If I plug the USB in the right part, it works fine (inversed layout, of course) but then the left part is non-functional. I have another right half spare (built two right halfs for training), and plugging it works fine - so it's indeed the other right half with issues. Any idea of what this might be? I suppose I will need to troubleshoot the electronics, but no idea how to do that.

Thanks :)

trainline-fernandomedeiros commented 11 months ago

I think I may have found the issue (without troubleshooting yet). I noticed that inside the TRRS jack is supposed to have three salient "pins" of some sort, but there are only two. Seems like the "Sleeve" pin is missing. I do have some spare TRRS jack, but replacing it would mean un-soldering everything (Including the Arduino and soldering it back :(

EDIT:

That was really the case, I confirmed with a multimeter and continuity test. Broke one of the spare TRRS, and seems like each contact has some sort of "hinge" for touching the plug, it worned out and ended up breaking off. Managed to drill a small part of the jack and bent it to make contact. It's not pretty but less work than resoldering everything.