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Vizio 42", have picture for about 5 mins then screen goes black.

I have a picture when I turn on the tv but after 5 mins the screen goes black. If I turn the tv off and wait about 1 min and turn it back on, I have a picture again but then the screen goes black after 5 mins. Still have sound.

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  • Anonymous Mar 24, 2014

    tv screen goes off while watching

  • Anonymous Mar 25, 2014

    Black Screen and white light no picture or sound

  • Anonymous Mar 29, 2014

    tv turns on and shows picture for about 2 minutes or so then screen goes black if i turn tv off and back on picture does the same thing

  • Darlene Erickson
    Darlene Erickson May 31, 2014

    the power supply seems to be putting out the correct volts to plugs

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Also check the power cord wire coming from the back of the tv is loose from the tv side or perfect.

Posted on Oct 26, 2008

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  • fixexpert Oct 26, 2008

    if the wires are proper then definately the problem of power transistor on the main motherboard.
    you can get the power transistor at.


    www.radioshack.com
    if u have technical knowledge you can order the part and replace.or call the technician to do it for you.
    it will be bit costly so do it carefully if try to do yourself.
    goodluck
    thanks,



  • fixexpert Oct 26, 2008

    if you go into your channel map (the area in your setup menu where you can add
    or delete channels from appearing when you channel surf) the tv does NOT save
    your channel map settings once you turn your tv off. this can become EXTREMELY
    annoying if you have channels you don't want to surf through or have analog
    channels that don't come in well. i have to go to this menu every time i turn on
    the tv before i start watching, and delete all the channels i don't want to see
    before i start channel surfing. and then once i turn the tv off and turn it back
    on, you have to repeat the process again. it is sad that i have gotten extremely
    quick at doing this since it is not something you should have to deal with on a
    daily basis

    2. another function that does
    not save your settings on the tv is the delta volume setting in the sounds menu.
    if you have channels that are at different volumes, this setting is supposed to
    allow you t oadjust each channel's volume seperately so that when you surf, you
    don't come across one channel that is whisper quiet while the next channel is
    extremely loud. this is extremly apparent when switching between inputs, and
    also between analog channels and digital channels. the most annoying part about
    it not saving this feature is that once you set the delta volume and change the
    channel, the setting GETS RESET TO ZERO! it renders this feature useless if it
    does not save right when you change a channel. what is the point of this feature
    then? why not just use the regular volume control?

    3. once in a while, the tv will stop working. i have had it for
    3 months, and sometimes i change the channel and all of a sudden the tv screen
    goes black. it seems to freeze up. you can't turn it off, change the channel or
    anything like that. you can't even turn it off by pressing the power button on
    the actual tv, you have to unplug the power chord, and then plug it back in and
    turn the tv back on and then it functions normally again



  • Nick DeSocio
    Nick DeSocio Feb 06, 2013

    Number 3 sounds like the same problem that I have

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Its the problem in the power supply board of your tv.

Posted on Oct 26, 2008

  • ready2helpu Oct 26, 2008

    any of the IC or the capacitor has got loosed on the power supply board.remove the board and check it out.and if every thing seems proper then just cold solder whole board and it will be proper.as the soldering joints are getting loosed after some time .so cold soldering will help.

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