What is this?

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  • ljintexas
    LJinTexas
    • Jan 2015
    • 669
    • USA
    #1

    What is this?

    This device is directly downstream from the main power switching transistor on a 3D projector. It reads 5 Megohms one way and 11 Megohms the other way. No capacitance..it is stopping current to the lamp.
    Can anyone tell me what it is? EPCOS 800 150 are the markings on it.

    Thanks

    LJ
    Tags: None
    • ljintexas
      LJinTexas
      • Jan 2015
      • 669
      • USA
      #2
      Re: What is this?

      Pictures help a bit, no?
      Attached Files

        Comment

        • Per Hansson
          Super Moderator
          • Jul 2005
          • 5895
          • Sweden
          #3
          Re: What is this?

          It's a Surge arrester.
          Normally used so that big voltage surges coming in to a device gets shunted to ground.

          Scroll to the bottom of my post here to see an example:
          https://www.badcaps.net/forum/showpo...38&postcount=6
          "The one who says it cannot be done should never interrupt the one who is doing it."

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: What is this?

              Surge Arrester, it should show open circuit. Are you sure you are not reading your hands/body resistance.
              It is protection device and it will not stop the circuit from functioning if it is not in the circuit, if it is shorted out then it will cause problem.
              https://cdn.badcaps-static.com/pdfs/...57bed9494a.pdf
              https://cdn.badcaps-static.com/pdfs/...f4d6af4531.pdf
              Never stop learning
              Basic LCD TV and Monitor troubleshooting guides.
              http://www.badcaps.net/forum/showthr...956#post305956

              Voltage Regulator (LDO) testing:
              http://www.badcaps.net/forum/showthr...999#post300999

              Inverter testing using old CFL:
              http://www.badcaps.net/forum/showthr...er+testing+cfl

              Tear down pictures : Hit the ">" Show Albums and stories" on the left side
              http://s807.photobucket.com/user/budm/library/

              TV Factory reset codes listing:
              http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

                • ljintexas
                  LJinTexas
                  • Jan 2015
                  • 669
                  • USA
                  #5
                  Re: What is this?

                  Indeed, it does show open circuit. Thanks

                    Comment

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