Can't tell, just assuming because the traces look fine and I've tried extensively to touch up the solder jobs on the non-functional keys. Is there anything else it feasibly be?
Looks like the burnt part you are talking about is just the flux from soldering. It also look like there are a few cold joints.
I would buy a rosin pen and try reflowing the joints. You can clean up the flux using isopropyl, the higher % the better.
Well just piling the solder up won't necessarily make it work. To me it looks like you've got way too much solder on those switch pins.
It could also be problems with firmware and/or the switches themselves.
Do you have a digital multimeter? If so you can test the switches.
Another thing to look into, those switches don't look like they are fully seated into the PCB. PCB mount switches get firm, then pop into place. It actually took much more force than I anticipated the first time I installed PCB mount MX.
Yeah, these are Zealios. I noticed that too :P
Hoping to just desolder the Zealios and cut my losses at this point I suppose.
I bought this 'used' so I couldn't say.
The diodes look fine to me now except a couple of sideways ones which I'm about to fix so yeah it might be something else, I'm not sure how much I care to troubleshoot this thing anymore :-X
It came broken
No, not really, I don't mind too much though... especially if I can salvage these Zealios
if that many keys don't work, and it came broken
that means the traces are damaged some where..
it's likely not the soldering.
Follow the traces. and check the controller pins.
I'm very familiar with soldering, just not too familiar with the whole jumper wire thing that people do when they burn traces and the like, which is kind of what I'm under the assumption I need to do here if I wanted to get this PCB working.
After examining the board it looks like the diodes are definitely soldered in place save for two that have been twisted sideways. It might be the fact that the switches aren't seated fully into the plate, too - all in all I'm probably just going to desolder the Zealios as it appears all but one are functional.
I'm very familiar with soldering, just not too familiar with the whole jumper wire thing that people do when they burn traces and the like, which is kind of what I'm under the assumption I need to do here if I wanted to get this PCB working.
After examining the board it looks like the diodes are definitely soldered in place save for two that have been twisted sideways. It might be the fact that the switches aren't seated fully into the plate, too - all in all I'm probably just going to desolder the Zealios as it appears all but one are functional.
try sanding the pcb then.. expose some copper..
Sanding is an option but if you can see enough of the trace to do that you can probably work out where it goes and just solder to that pin or diode instead.
I too don't like to see things which are fixable get condemned so desolder those switches and take a pic so the damage can be assessed :)
Yeah, just waiting on a better desoldering iron to come in :P Definitely not doing this with a pump and wick.
Sanding is an option but if you can see enough of the trace to do that you can probably work out where it goes and just solder to that pin or diode instead.
I too don't like to see things which are fixable get condemned so desolder those switches and take a pic so the damage can be assessed :)
Sanding is an option but if you can see enough of the trace to do that you can probably work out where it goes and just solder to that pin or diode instead.
I too don't like to see things which are fixable get condemned so desolder those switches and take a pic so the damage can be assessed :)
Why couldn't you sand it even if you can't see the trace through the lacquer..Show Image(http://emoticoner.com/files/emoticons/onion-head/hehe-onion-head-emoticon.gif?1292862507)