Clean your old cirt boards or leave alone

(Topic ID: 8277)

Clean your old cirt boards or leave alone


By Fishmugger

6 years ago



Topic Stats

  • 7 posts
  • 6 Pinsiders participating
  • Latest reply 6 years ago by Cliffy
  • No one calls this topic a favorite

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    #1 6 years ago

    Have 2 30 year old pins and will be working on cirt. Boards. My question how do u get 30 yr. of crud off or leave them alone. Went to frys Elec and they have cirt. Board cleaner spray in a can. Says good for circuit boards. What say you?

    #2 6 years ago

    Soft toothbrush, 90% isopropyl alcohol. Voltages are too high for sprays in some areas, can arc and catch fire.

    -Hans

    #3 6 years ago

    I used Qtips and alcohol a few weeks ago to clean mine. Tedious, but it worked.

    #4 6 years ago

    I would say get either a can of compressed air or get an air compressor. I always use that on my boards for any electronics. I would never use any chem. products.

    #5 6 years ago
    Quoted from HHaase:

    Voltages are too high for sprays in some areas, can arc and catch fire.

    -Hans

    unplug the machine and go nuts no?

    #6 6 years ago
    Quoted from Slingshot:

    HHaase said:Voltages are too high for sprays in some areas, can arc and catch fire.
    -Hans
    unplug the machine and go nuts no?

    Well, any cleaning should be done with the machine powered off no matter what you're using.

    But contact cleaner leaves behind residues, and that's what burns. It's mostly a problem with EM machines that have lots of sparking going on, but you still have 40v and 100v power going through portions of solid state machines too. And since he didn't specify which circuit boards he's cleaning, I figured the safe answer would be to just not use the stuff.

    Alcohol evaporates totally, and is common for cleaning boards used in much more critical areas than pinball machines. Does a great job cutting through most solder fluxes too, and cleaning them up.

    -Hans

    #7 6 years ago

    Do what the board mfgrs do. Toss 'em in a dishwasher. Just use an air compressor to totally blow dry dip switches, relays, sockets and such. I do all my boards that way and when I was in the computer biz all our reworked motherboards went through a commercial dishwasher the same way. The drying afterwards is whats critical but easy enough to do.

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