[Solved]Help repairing a corne pcb (Led problem)

[Runningtarrens]

Hi guys a few days ago i build my Corne and it worked great.
Today one led died and i wanted to desolder it and solder a new one.
Sadly i ripped off the conntact pads on the pcb. Now im trying to find schematics for the port,
so i can get some cables in place to fix this. But i cant find any. Can someone help me?
Its the 5. LED on the backside, the two "bottom" contacts. should be plus and the data out.

[nmur]

do these files help?
https://github.com/foostan/crkbd/tree/master/corne-cherry/pcb

this is an image of the pcb, but because it's double sided, and the traces are under a nice black film, it's a bit tricky


seeing as the pads are gone now, you can either try to scrape away the black film to reveal some copper to solder to instead, or find out where the trace ends up and solder jumper wires to those locations

[Runningtarrens]

thanks. i loaded the kicad file, to find the traces. But im using a cable to get the data signal from led 4(L21 pad-1) directly to led 6(L26 pad1) and it doesnt glow.
but it should or?

[nmur]

thanks. i loaded the kicad file, to find the traces. But im using a cable to get the data signal from led 4(L21 pad-1) directly to led 6(L26 pad1) and it doesnt glow.
but it should or?

sorry, I don't think I can help you much there

[Runningtarrens]

thanks! Ok got it working now. i just soldered a wire from the pad of the fifth led to the next led in line.
also i found out that you can  check the data in and data out line are connected to the led.
Use a multimeter and measure between data in and data out. you should have about 45 Ohm resistens.
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