RCA LED50B45RQ no power/LED question

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  • joeblah
    Senior Member
    • Apr 2016
    • 65
    • USA
    #1

    RCA LED50B45RQ no power/LED question

    Hello all,

    Put in a new power board (RS129D-3T01). I get the red standby light and then it goes out when I press the power button. No backlight. I have a backlight tester (GJ2C) so I unplugged CON5 and put the tester on the left hand set of red/black wires. I can see a bunch of LEDs light up.

    Then, I put the tester on the right hand set of red/white wires and I get nothing. Am I doing something wrong or is the other set of strips bad?

    Thanks!
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    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: RCA LED50B45RQ no power/LED question

      You have two sets of LED strings, so it sound like one of the strung has open circuit.
      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

        • SLK001
          Badcaps Veteran
          • May 2014
          • 264
          • USA
          #3
          Re: RCA LED50B45RQ no power/LED question

          The strip with the RED/WHITE connections has bad LEDs. You'll have to pull the panel to get access to them.

            Comment

            • joeblah
              Senior Member
              • Apr 2016
              • 65
              • USA
              #4
              Re: RCA LED50B45RQ no power/LED question

              Okay, awesome. Thanks guys!

                Comment

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