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GEON13mo ago
lt.yel

Issues with Galatea PCB

Hi. I was attempting a plateless build with the Galatea PCB last night for my 722. I tested the PCB and everything was working fine. My intended layout is with a 7u bottom row and split right shift. After soldering, I plugged the pcb in and found that some keys were constantly triggering, i.e., F2, F5, left Ctrl, some random alphas. I thought the switches were the problem and desoldered them without replacing the switch (no switches on those buttons), and when I plugged in, F2, F5, LCtrl, and some other random alphas were triggered, even when there were no switches on the F2, F5, LCtrl. I decided to desolder the entire bottom row and F-row, and F2 and F5 are still triggered. LCtrl has stopped triggering for me. Bear in mind that random alphas are being triggered as well, but the triggered alphas are ones with the switches still soldered on. At this point, I decided to re-flash the PCB. Here's where things went a bit weird. When in QMK toolbox, I pressed the physical reset button and the yellow line appeared, as expected. Clear EEPROM, flash the hex file from Geon's website, and here's the funny bit. The flash didn't complete, stopped at 58% or something, then the yellow line appeared again saying pcb is disconnected. I repeated this flashing attempt a few times, but the same thing occurs. Another thing I noticed was that after I did the desoldering the problematic keys and replugging-in as per the above, my computer was acting weird. Like when using my browser, my mouse clicks wont register, typing using the on-screen keyboard doesn't work, and selecting my files on the desktop makes it seem as if I'm holding down the shift button. It gets weirder when I unplugged the PCB, and these things still persist! I can only get rid of it after restarting my PC. At the end, I decided to fully desolder the PCB, and plugged it in again. Lo and behold, the thing works fine. Testing the PCB on VIA's test matrix worked without a problem. I have no idea what's happening.
3 Replies
lt.yel
lt.yel13mo ago
Sadly, I didn't think to take a picture of my soldering job, but I did take a picture of the pcb post-desoldering. Also took a photo of the constantly triggering buttons (F2, F5) on VIA test matrix Nvm found the issue. Closing this thread
GEON
GEON13mo ago
Can you share exactly what the problem was?
lt.yel
lt.yel13mo ago
My switches were the problem. It was a franken using the full PBT Everglide Peacock Blue housings, and your Snow Slider stem, and your 22mm 70g springs. Not sure if the spring or the stem caused the switch to constantly trigger. The leaf of the switch itself could be the issue as well.