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A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.

Replace LCD control board component?

Scheduled Pinned Locked Moved Troubleshooting
short circuitpcbcontrol boardlcdpower
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  • C Offline
    camshell
    last edited by Jun 9, 2020, 2:11 PM

    I was trying to check the voltages on some of the components of my LCD Control board, and being the clueless beginner I am, placed my multimeter contacts across two prongs on a certain component. I heard a small “pop”, then the power started flickering rapidly and won’t work now. I’m guessing I short circuited some component that has to do with the power?

    Attached are images of the component that “popped”. Is my control board as good as dead? Do I need to buy a new one? Or can I replace this dead component alone?

    If it’s replaceable, can anyone help me identify this component and where I can find a new one?

    Thanks!!C79864F5-6378-4CE7-BB03-2BC5DED0B735.jpeg FA530B9E-A3F2-4F9F-B893-AF2BCA6233CD.jpeg

    S 1 Reply Last reply Jun 9, 2020, 2:47 PM Reply Quote 0
    • S Offline
      sdetweil @camshell
      last edited by Jun 9, 2020, 2:47 PM

      @camshell that thing is just a jumper block. unlikely it is the problem.

      I would guess u blew a capacitor or one of the IC components.

      Sam

      How to add modules

      learning how to use browser developers window for css changes

      C 1 Reply Last reply Jun 9, 2020, 5:26 PM Reply Quote 0
      • C Offline
        camshell @sdetweil
        last edited by Jun 9, 2020, 5:26 PM

        @sdetweil Ok. Is there a way to check what’s blown? I know for sure that the board stopped working when I touched the component marked in my image. What does the jumper block do?

        S 1 Reply Last reply Jun 9, 2020, 5:45 PM Reply Quote 0
        • S Offline
          sdetweil @camshell
          last edited by Jun 9, 2020, 5:45 PM

          @camshell said in Replace LCD control board component?:

          What does the jumper block do

          allow someone to change operating characteristics… no idea what THIS one does… just pins onto the circuit board…
          the jumper makes some connection between the two pins. or the others etc…

          no idea what it does here without a board circuit diagram…

          you could have burned the circuit board connections under the jumper block… none of us will know (unless u accidentally found the people that designed and built the board.

          shortest path is find another like monitor to get the board, or find another monitor

          Sam

          How to add modules

          learning how to use browser developers window for css changes

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