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UN55fh6200 Rebooting when warm

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    UN55fh6200 Rebooting when warm

    I was given this tv. When it's cold it works fine. When it warms up it shuts down for a second then starts up again. I changed the caps but it's still doing the same thing. I turned the brightness level down and it seems to be fine so would have a have a faulty led strip?

    #2
    Re: UN55fh6200 Rebooting when warm

    So how low of the backlights (not Brightness) level you turn it down to?
    Pictures of the back side of the TV showing all the boards so we can see what we are dealing with?
    Last edited by budm; 07-11-2019, 09:46 PM.
    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


      #3
      Re: UN55fh6200 Rebooting when warm

      I'll get some pics tomorrow. The highest level is 20 and I have it set to 5. I haven't incremented it to see how high it will go before it starts rebooting again. I got sidetracked. I plan to dig deeper into it tomorrow night.

      Comment


        #4
        Re: UN55fh6200 Rebooting when warm

        I would also remove the LED connectors, power supply to main board connectors and inspect them to see if any one of them has the sign of over heating, also try tapping on the boards, check board mounting screws, etc.
        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


          #5
          Re: UN55fh6200 Rebooting when warm

          Usually an LED fault will just shut the TV down and not re-power over and over. You probably have a thermal issue somewhere. Since turning down the LEDs seems to help the issue, I would look at the LED driver portion of the PS.

          Comment

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