ViewSonic VP201b

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  • Proten
    New Member
    • Dec 2010
    • 2

    #1

    ViewSonic VP201b

    I have a View Sonic VP201b display I'm trying to fix and when I opened the case I found the main board had a brown crusty covering. It looked like someone pored chocolate milk on it and baked it on.
    Any idea what it is and how to remove it.

    Paul
  • retiredcaps
    Badcaps Legend
    • Apr 2010
    • 9271

    #2
    Re: ViewSonic VP201b

    Originally posted by Proten
    It looked like someone pored chocolate milk on it and baked it on.
    Post clear focused pictures using the manage attachments. Please do not post pictures inline as they slow down the loading of pages.

    Try to get a photo that is 2000x2000 resolution or as close as possible.
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    If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

    We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

    Please do not post inline and offsite as they slow down the loading of pages.

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    Comment

    • EGuevarae
      Badcaps Legend
      • Nov 2008
      • 1336
      • USA

      #3
      Re: ViewSonic VP201b

      Originally posted by Proten
      I have a View Sonic VP201b display I'm trying to fix and when I opened the case I found the main board had a brown crusty covering. It looked like someone pored chocolate milk on it and baked it on.
      Any idea what it is and how to remove it.

      Paul
      See posts about VP211b, same unit .....
      There are 10 kind of people in this world: those that understand binary, and those who don't.
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      Comment

      • romansroad
        Senior Member
        • Feb 2010
        • 123

        #4
        Re: ViewSonic VP201b

        There's a few opinions on board cleaning....some based on fact, others on dogma. It always helps to have an idea of the substance to tailor the solvent/agent to that. If you think it was dairy based, then I have actually used warm water with liquid dish soap and a gentle old toothbrush. I have gone so far as to remove any electromechanical items (relays, switches etc.) that don't play well with water and soak the board in the tub. Thereafter, drying is critical and don't overheat the board if you use a hairdryer. One could argue that distilled/deionized water is better, but keep in mind that acids, bases and salts conduct electricity and the board itself will already have some contaminating substances on it from the spill. Lots of rinsing after the cleaning with distilled water may minimize this, then dry, dry, DRY!

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