So I've had one of these for about a year and a half now:
Amazon.com: Tt eSPORTS Poseidon Z Blue Switch Illuminated Keyboard (KB-PIZ-KLBLUS-01): Computers Accessories
I've loved it up until just recently. Now, all at once, I have about 5 different keys that I really have to mash in order for it to register or I get 2-3 keypresses each time I touch them. Most maintenance I've done is pop off the keycaps and blow it out with a can of compressed air. I'm sure this is mechanical keyboards 101, anyone know what I should be doing to this mafucka?
If the same switches fail over and over, then the "leaf" is fucked (2 gold leafs make a contact). sure mashing the button once a week or month "soft resets" the button, but does it eventually re-fail? and the same switch? it's fucked, de-solder that switch and pop in a new one.
you have a few options purchase the switches from
1.
Mouser Electronics - Be back soon...
Cherry MX Switches
2.
or ebay, BUT ebay might have those cheap chinese switches, i'd caution it.
3.
Desolder a rare used, like the Function keys or if you don't use the num-pad or the tilde~, and repurpose those keys to replace your funky keys.
4.
buy a cheap mechanical keyboard and just "gut" it for parts.
Don't know how to solder/de-solder? google it/watch on youtube, it'll take 5minutes, and especially since you're just doing switches, it's easy, you're not doing pcb's
What ppl fail at, is they use those cheap pen solder irons, you know the 5$ kind from Radio Shack, don't don't heat up hot or fast enough, get a decent one
Amazon.com: Weller WLC100 40-Watt Soldering Station: Home Improvement
and you should be good (there are of course better, but that'll be great for many projects, like a weller 51 would of course be better, but double the price, i prefer hakko myself)
for desoldering, you can either use the wick or a solder sucker, i prefer the sucker, especially for big jobs like switches
LyonsBlue Desoldering Vacuum Pump Solder Removal Tool - Capacitors - Amazon.com
I think i've de-soldered 300switches with that, works great, and of course don't forget to add some solder and you should be good.