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?

  • Fecundpossum@lemmy.worldEnglish
    131·
    5 months ago

    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.worldEnglish
      32·
      5 months ago

      Even 91% seems quite impure, it will leave a lot of residues on the board. Best to go with 99% IPA

      • mark3748@sh.itjust.worksEnglish
        31·
        5 months ago

        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.

        • TimeNaan@lemmy.worldEnglish
          21·
          5 months ago

          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.