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Vizio E470VL

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    #1

    Vizio E470VL

    Vizio E470VL will not turn on. Amber Vizio light comes on, but screen remains black and Vizio light will not turn white. TV is unresponsive to the remote control and manual button on the TV itself. If I press power on either the remote or the TV, nothing happens. It doesn't turn off and it doesn't turn on. The amber light remains lit up. Cannot change input, channel, etc. Nothing but a black screen with the Vizio light lit up amber. The amber light will only turn off if I unplug it. Will not turn white regardless of what I do. I opened up the back and I don't see anything out of the ordinary. Any help you can provide would be greatly appreciated. I've attached a number of pictures.

    Thanks
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    #2
    Re: Vizio E470VL

    I just finished writing How to test a voltage regulator. See my sig file below. It may or may not be your problem, but since it is a Vizio, it is worth 15 minutes of your time reading and testing it.
    Last edited by retiredcaps; 08-26-2012, 11:47 PM.
    --- begin sig file ---

    If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

    We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

    Please do not post inline and offsite as they slow down the loading of pages.

    --- end sig file ---

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      #3
      Re: Vizio E470VL

      Test all fuses and list them with a numeric result eg main board F2 2.6 ohms
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

      Comment

        #4
        Re: Vizio E470VL

        It sounds like you're having a problem like I just had with a 42 vizio. I fixed mine by replacing the mainboard the other day. The symptoms were the same. I had power out from the power supply to the mainboard, but no power was coming back from the main board to the power board.

        Do a quick check of all of the regulators as previously suggested. They are usually 1117's that fail a lot on vizio's. Measure each leg to ground and post the readings here.
        The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

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