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    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

    #2
    Re: Vizio e470vl help

    Originally posted by GTXtreme19 View Post
    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.
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      #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

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        #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

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          #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

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