Good day guys, I have a problem with my XPG Summoner keyboard. Several keys on the numpad are dead — an entire column and three others. I thought it could be a broken line, but there is continuity on all the B pins; only the A pins don’t work or send a signal. After checking with the multimeter in continuity mode and desoldering all the keys, I noticed that the diodes and transistors follow this sequence. I don’t know what else to do or check anymore. I already tried bridging to the working keys on the sides, but I didn’t get any results.
The light green line shows how the traces run through the diodes.
The dark green shows how the keys are connected to the diodes.
And the red marks the keys that don’t work.
https://imgur.com/a/En9WVhS
