Samsung UN40EH5300FXZA backlight problem

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  • Ken101
    New Member
    • Mar 2016
    • 3
    • Dutch Caribbean
    #1

    Samsung UN40EH5300FXZA backlight problem

    Hi, i got a flat screen someone was throwing away, the problem is that it works perfectly for about 30-45 min, not too sure on the exact time. After that the backlight turns off and stays off (it may flicker for a second before turning off), i can turn off the tv for while and itll turn back on normally and work for a while again.
    I had opened it up and looked at the caps on the power supply and they look fine. Attached is a picture with the back cover off... would love any help to know what might be the right board to replace.

    Thanks!!!
    Attached Files
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Samsung UN40EH5300FXZA backlight problem

      When you get it to stay on again go to the user on screen menus setup and turn down the backlikgts to about 50% and see if the backlights will stay on longer.
      I will not be surprised if you have LEDs going out on you.
      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

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