VIEWSONIC vp201b lcd screen flickering and 2/3 of screen goes blank

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  • badskribs
    New Member
    • Feb 2011
    • 3
    #1

    VIEWSONIC vp201b lcd screen flickering and 2/3 of screen goes blank

    Hello!
    i'm new on this forum and i'm french man so my english is not too high like urs but i will make effort! thank you.
    My viewsonic vp201b screen starts well with good displaying and after 10mn ( when it temperature becomes rises ) 2/3 of the screen fluickers and goes blank or black ... i've posted an image of the screen.
    But i've opened it and reached to the LG Philips LCD IC and when i pressed it whith my finger ... it stops the troublshooting and screen displays correctly ... i don't understand !
    this is the link of my service manual :

    Please help me ... i need this screen for work. Thank you.
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    • smason
      Badcaps Legend
      • Feb 2010
      • 1652
      • Canada
      #2
      Re: VIEWSONIC vp201b lcd screen flickering and 2/3 of screen goes blank

      What exactly are you pressing on when it works? A photo would help too.

      It soulds like either a bad solder joint or a dirty connector.
      36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

        Comment

        • badskribs
          New Member
          • Feb 2011
          • 3
          #3
          Re: VIEWSONIC vp201b lcd screen flickering and 2/3 of screen goes blank

          Hi,
          this is the photo like you ask me ... now pressure has no effect ... i've cleaned the LCD connector and well plug it and the screen have worked correctly around 30 mn (most time of correct working) ... and the troublshouting reappears ... the components are too small to verify solder jonctions ... an idea ? please share with me.
          thanx
          Attached Files

            Comment

            • smason
              Badcaps Legend
              • Feb 2010
              • 1652
              • Canada
              #4
              Re: VIEWSONIC vp201b lcd screen flickering and 2/3 of screen goes blank

              Hmm the chip you pressed on is pretty close to the connectors that connect to the panel, so that makes it a bit tough. Have you tried gently pressing on the black connections at the very top of your photo?
              36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

                Comment

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