LED strip functions test... The hard way.

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  • Jeryswan
    Member
    • Mar 2020
    • 39
    • USA
    #1

    LED strip functions test... The hard way.

    Hey all. I'm looking to start testing LED strips while they are installed in the TV so I don't have to remove the panel to see if they are functional.

    This is the power supply I'm working with. I've been poking my leads to the backlight circuit and setting the power supply to 5V-.5A and inching my voltage up till I start to see something through the panel. This hasn't been yielding great results. Is this method what you guys do to test? What would yall recommend to help me accomplish this better? My power supply only goes up to 32v-5A... Do I need something with a little more balls?

    TIA
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    • R_J
      Badcaps Legend
      • Jun 2012
      • 9514
      • Canada
      #2
      Re: LED strip functions test... The hard way.

      Most panel led strings require more than 30 volts, with most led's being 3v (some are 6v), the panel would need to have less than 10 led's in the string to light. Many led backlights in TV's use 80 plus volts, some are around 200v to light the string.
      Buy a led tester.
      Last edited by R_J; 10-24-2020, 04:34 PM.

        Comment

        • Jeryswan
          Member
          • Mar 2020
          • 39
          • USA
          #3
          Re: LED strip functions test... The hard way.

          Originally posted by R_J
          Buy a led tester.
          Do you recommend a specific one?

            Comment

            • petehall347
              Badcaps Legend
              • Jan 2015
              • 4422
              • United Kingdom
              #4
              Re: LED strip functions test... The hard way.

              i bought one of the cheap ones .it seems to work fine ..just don't test to see if you cant get a shock touching the probes with your fingers ... mine said you cant but my testing says you definitely can .

                Comment

                • Nick's Tvs
                  Badcaps Veteran
                  • Jan 2014
                  • 621
                  • USA
                  #5
                  Re: LED strip functions test... The hard way.

                  petehall347, my testing also yielded similar results. Those suckers can be better than coffee in the morning.

                  Jeryswan if you want to get a cheap one quickly, just get the one shopjimmy sells: https://www.shopjimmy.com/sid-gj2c-l...klight-tester/

                  It has a bit of a mark up though.

                  If you want the same thing for cheaper and don't mind waiting, get this one instead, it's the same at half the price:

                  https://www.ebay.com/sch/i.html?_fro...LCD+LED+tester

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