[solved] How to fix my PCB?

[Jahakob]

Today I desoldered my Vortex Race 3 to get rid of the MX blues it came with.

When I soldered in the new switches I noticed 2 key right next to each other stopped working. (LD26 & LD27)

While I was troubleshooting I noticed that the two left connectors to the pin might somehow be at fault. (marked green in the second image), since I can bridge the right ones to create a keystroke but not the left ones.

The Diodes seem ok to me. But I am out of ideas at this point, what the problem is. Please help me

[tp4tissue]

measure between the 2 green circled,   if they're connected, then bridge either one to any ground with wire.

Then short the connection see if they work.

[Jahakob]

Thanks for the quick answer! I am not sure tho, where a ground pin would be on this keyboard.

[Jahakob]

measure between the 2 green circled,   if they're connected, then bridge either one to any ground with wire.

Then short the connection see if they work.

I tried connecting it to a led ground pin. That didn't seem to do the trick. The two are definitley connected tho, according to my multimeter.

[tp4tissue]

/Head scratch

When you said you can bridge the -Right ones- to create a keystroke, what did you mean by that, where did you bridge to

[Jahakob]

/Head scratch

When you said you can bridge the -Right ones- to create a keystroke, what did you mean by that, where did you bridge to

I did it now. I desoldered everything to look at it from the front. From there I could check all the connections of the solder points. I used the multimeter to identify the faulty one, which i bridged as you said. Thank you for your help!