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Vizio, Powers off while on/sometimes doesn't power on

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    Vizio, Powers off while on/sometimes doesn't power on

    Model: D65U-D2

    Got it for free, I started to play with the settings after opening my door to get some fresh air and it powered down twice on me after turning on the calibrated setting and turning on auto high brightness adjustment and black level adjustment settings.

    Sometimes it doesn't power on, when the tv shuts down while I'm using it it doesn't want to start but eventually will on the second time. I blew out the back of the TV with some air duster and that seemed to help some, but unsure as to what's wrong. The temperature difference outside and inside was a few degrees when I opened the door, but I live in a pretty humid area.

    I think the settings I changed increased the brightness and I turned on the high black detail and game low latency. I'm also on the 60Hz hdmi connection.

    Any advice? It's always done this pretty much on and off. As I'm playing with the backlight settings going from 95 to around 75 the tv seems to shut down. On Low backlight seems fine.
    Last edited by RainStorm; 10-02-2020, 03:52 PM.

    #2
    Re: Vizio, Powers off while on/sometimes doesn't power on

    If the tv stays ON with the backlights lowered, it is a good chance you have a bad led in the backlight string, it only takes one.

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      #3
      Re: Vizio, Powers off while on/sometimes doesn't power on

      May be one or more bad capacitors on the powerboard, just had similar symptoms with one of my old tvs, 5 bad caps that were obviously bad but sometimes they look good but can be bad, seems like the startup caps are the ones that like to crap out first, just a possibility.
      Last edited by nomoresonys; 10-04-2020, 09:51 AM.

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        #4
        Re: Vizio, Powers off while on/sometimes doesn't power on

        Guess I missed your last sentence, "On Low backlight seems fine" yes that's a pretty good indicator of bad/weak backlight/s.

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