Vizio e470vl help

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  • GTXtreme19
    New Member
    • Jun 2013
    • 3
    • United States
    #1

    Vizio e470vl help

    Let me apologize in advance or the fact that I can't post hi res pictures as I don't have a camera just a poor cell phone.

    More to the point a friend gave me a 47" vizio e470vl, story being that he plugged in his PS3 with the HDMI already plugged into the TV and popped a breaker in his house. When he reset the breaker his direct TV box, and the TV both would not work.
    He says the orange/amber light flashed once but never came back on only when it got plugged in.

    Anyway free TV, I'm a computer geek, I can probably fix this. Come here read some.
    Tested the voltage regulators, all say 0, tested the plug(s) in the upper right hand power supply board and all read 0 even the 3 5v standby plugs only read .01 volts.

    Does the whole board need replaced or is there something else I'm missing here? Also I'm testing with a fluke 322 digital multimeter (I'm a mechanic by trade so I happen to have a decent multimeter). Is there something else I can check to be 100% sure? I don't want to replace a PS board and have the main board be bad too

    Sorry for the long winded post.

    Thanks,
    Mike
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Vizio e470vl help

      Originally posted by GTXtreme19
      Tested the voltage regulators, all say 0, tested the plug(s) in the upper right hand power supply board and all read 0 even the 3 5v standby plugs only read .01 volts.
      If you are getting 0V on the 5V standby pin, check the main fuse. A good fuse will measure less than 1.0 ohms. If the fuse is good, then measure the DC voltage across the large main filter capacitor. It should be AC mains x 1.414. For example if you are 120V AC x 1.414 = 169.68V DC.
      --- begin sig file ---

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      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.

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        Comment

        • GTXtreme19
          New Member
          • Jun 2013
          • 3
          • United States
          #3
          Re: Vizio e470vl help

          main fuse tested good .2ohms but where is the main filter cap? and whats the easiest way to test?

          I managed to snap a few poor quality photos in case it helps at all.
          Attached Files

            Comment

            • Altonwaldon
              Member
              • Aug 2013
              • 16
              • usa
              #4
              vizio E470VA white logo, prestart bright white logo, then nothing on screen

              I have a vizio E470VA LCD TV when I got it it was already broken the screen looks ok not cracked when plugged in vizio logo turns white with light when attempting to start the set with remote or surface power button the logo gets brighter but the set does not start just gets stuck there. has any body experienced this with a vizio 47 ? should I start with the power supply or the main board with regard to testing . also vizio vt470m and vizio e470va any compatible parts in common, I have one of those with a cracked screen

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: Vizio e470vl help

                  Pictures of the boards for this TV so we can see how they are connected?
                  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

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