Novice question about lcd inverter testing

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  • pawel123
    New Member
    • Apr 2018
    • 7
    • Poland
    #1

    Novice question about lcd inverter testing

    Hello,

    I found such comment on the internet: "The inverter is designed for an RF impedance, not to drive into a simple DC resistive load like a multimeter, and I wouldn't be surprised if that voltage test has ruined more than a few inverters."

    In youtube videos, I've seen people investigating a "living" inverter using a multimeter. I would like to know if we can damage "living" inverter board by touching the multimer(oscilloscope) needle to the wrong smd element?
    Tags: None
    • mmartell
      Badcaps Legend
      • Oct 2013
      • 3189
      • Canada
      #2
      Re: Novice question about lcd inverter testing

      They are checking INPUT voltage and BL/ON signal.

      It's the OUTPUT voltages to the lamps that can destroy your meter.

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