Timo - It's a actually a bit worse since now ad...
It's a actually a bit worse since now additionally to the F6,6,T,G,B,Space Column additionally F5, 4, 5 and V stopped working so parts of the column next to it and even further(4) .
Tmaybe someone with a bit more knowledge about the connection between those keys could give me more info on what pins exactly to check ( @jaygreco ?).
odd thing was it was failing in the middle of using it. first the oleds didnt work anymore and then i suddenly made lots of typos since some of those keystrokes didnt detect right. then the keys mentioned above stopped detecting keystrokes altogether
odd thing was it was failing in the middle of using it. first the oleds didnt work anymore and then i suddenly made lots of typos since some of those keystrokes didnt detect right. then the keys mentioned above stopped detecting keystrokes altogether
Tthe rest seems to work fine
Tsince this thread doesnt include the issue i responded to im gonna briefly explain what happened before. almost two months ago i had this same far right column F6 6 T G B fail on me. i seemed to fix it by resolderring some mcu pins that looked a bit weird on the left half.
TI used flux core solder wire. Since my local hardware stores don't have flux for electronic applications (Just the stuff for Pipes).
TI ordered some flux paste as you see it in many videos and it will probably arrive tomorrow
TIt was my first time ever soldering so there's a high chance some solder joints are bad
JDefinitely sounds like a connectivity issue if it’s an entire row/column and follows a pattern.
T:D
Tflux is amazing. i always had issues getting good looking soldier joints but just adding a bit of flux paste is like magic
TNevermind it worked for 10 minutes and now I'm having the same issue again. This is very odd
Tim not sure what has to do with this column so i just reflowed the ic and the mcu pins
Ti observed that one mcu pin is really hard to solder. the solder wont stick as well as the other pis and it has a harder time liquifying.
Tits one of the gnd pins
Tthe second one from the top of the right side
Twell it has multiple gnd connections so maybe those specific keys use that gnd?
Tthe odd thing is that after resoldering it works for like 5 minutes and then randomly stops again
Ti for the life of me cant get that joint to look as good as the others
Tno matter the heat
Ti can try
TI think you can see it pretty well on here
Tthat joint is just always messy and wont cleanly flow around with surface tension as all the others
Tim using a weller soldering station
Taccording to the diode plan its all the keys/diodes with x,6 and x,7 having issues
Twhat do you mean by that?
Tthat would be 9 diodes with bad joints at the same time and they all look good
Taccording to older threads column wide issues are always either mcu or ic connection issues
Tits the snap but i dont see any in #diagrams-etc
Tbtw currently its working again maybe this time it reflowed properly. but i wont speak too soon
Tbut since i only reflowed that pin im pretty sure its causing all the issues