My A button was requiring a harder press for the input to be registered than normal, so I opened up my GBC and noticed this transfer on the PCB. I guess years as a child hard holding A to improve pokemon catch rates had caught up. What's the best way to remove this? Isopropyl alcohol and cotton bud?
What's the best way to remove this rubber transfer on GBC PCB
6 Comments
j4k3@lemmy.world · 11 pts · 2y
The buttons use a carbon based compound to make contact. I think you'll likely need to source a new button replacement. That is likely the carbon layer.
In general, rubbing alcohol is the goto for cleaning on a PCB. I use an old ultrasonic toothbrush or regular old toothbrush if I can't submerge whole boards in an ultrasonic cleaning bath.
Fecundpossum@lemmy.world · 12 pts · 2y
To clarify, you want 91% isopropyl alcohol. The normal 70% stuff used for first aid as too much water in it for use on circuitry. As far as application, you’re probably fine using a q-tip with light strokes back and forth.
TimeNaan@lemmy.world · 1 pts · 2y
Even 91% seems quite impure, it will leave a lot of residues on the board. Best to go with 99% IPA
mark3748@sh.itjust.works · 2 pts · 2y
Alcohol is so hydroscopic that your 99% will be 91% pretty quickly after opening. 91% is fine, even 70% will do, it just takes a bit longer to evaporate.
The “impurity” is straight up water.
Mjpasta710@midwest.social · 1 pts · 2y
You leave your alcohol in a large open mouth flask or store it in a non airtight container?
TimeNaan@lemmy.world · 1 pts · 2y
It's not straight up water. It's water and other chemicals. These chemicals leave a residue that can be corrosive.
Pure 99% IPA shouldn't leave white traces on the board.