Samsung LCD LE40R86BD flickering after 5 minutes

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  • Spongebob89
    Member
    • Mar 2021
    • 24
    • England
    #1

    Samsung LCD LE40R86BD flickering after 5 minutes

    Hello,
    I have a Sumsung LCD (Model: LE40R86BD) and after 5 minutes approximately
    starts to flickering about one two times and after some time stars the same thing again. There was one capacitor that was blown and I replace it. I measured all the voltages at CN801 and are OK. When the display turns off the "POWER ON/OFF" signal goes low (0Volt) and after 3 seconds come back high again. Maybe after some time something get hot and do that flickering? Any ideas for what to looking for?

    Power Supply BN44-00167A Schematic:
    Attached Files
    Tags: None
    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12206
      • U.S.
      #2
      Re: Samsung LCD LE40R86BD flickering after 5 minutes

      try this, unplug tv from outlet, unhook cable from powerboard to mainboard, leave it off, plug power cord into powerboard, plug into outlet, see if backlight stays on steady instead of going out or flickering after 5 minutes.
      Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

        Comment

        • CapLeaker
          Leaking Member
          • Dec 2014
          • 8214
          • Canada
          #3
          Re: Samsung LCD LE40R86BD flickering after 5 minutes

          If the backlights flicker, turn them down to 60% and see if the stay on.

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