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Vizio XVT3D650SV - Help

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  • newpey
    replied
    Re: Vizio XVT3D650SV - Help

    Rest of pictures!
    Attached Files

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  • newpey
    replied
    Re: Vizio XVT3D650SV - Help

    Closeups round 1... more to come of the other boards..
    Attached Files

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  • budm
    replied
    Re: Vizio XVT3D650SV - Help

    Can you please post clear focused pictures so I can read the labels on the board?
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  • newpey
    replied
    Re: Vizio XVT3D650SV - Help

    Sorry I mean it spikes at first then drops to 0

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  • bammbammfran
    replied
    Re: Vizio XVT3D650SV - Help

    Originally posted by newpey View Post
    Thanks for the help! Unfortunately I am getting resistance from the fuse to the left. The fuse on the right is reading at 5 volts on each side. I took a close look at the bottom right of the board and I do not see anything.

    I am still stumped
    You are not supposed to get resistance on a fuse when you check it end for end.
    Is there any voltage at that fuse ?

    Leave a comment:


  • stj
    replied
    Re: Vizio XVT3D650SV - Help

    check the voltage regulator in the second foto of your last post.
    7805 should have 5v coming out, and over 7v going in.
    pinout is printed on the board.

    check any others you find too.

    Leave a comment:


  • newpey
    replied
    Re: Vizio XVT3D650SV - Help

    Thanks for the help! Unfortunately I am getting resistance from the fuse to the left. The fuse on the right is reading at 5 volts on each side. I took a close look at the bottom right of the board and I do not see anything.

    I am still stumped

    Leave a comment:


  • bammbammfran
    replied
    Re: Vizio XVT3D650SV - Help

    the part that I thought looked iffy in the first picture looks better in the closeups.

    The fuse , on the other hand, in the second picture might be blown.
    Use your voltage tester and check voltage at the side that is closest to the plug and then check the other side of the fuse.
    If power is not going through. Unplug the plug from the power board and if your tester has ohm readings- check the resistance on the outgoing side of the fuse against the ground (pins marked in black) to see if resistance is there or if it shows zero which would mean a short.
    There is also a fuse like this on the 4 pin plug that is near this plug that can be checked.

    If you do not have power to either side of the fuse, it may not be powered up yet and would have to be checked with just the ohm meter by touching both ends of the fuse . I n this case, you do want to see zero on the reading.
    Attached Files

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  • newpey
    replied
    Re: Vizio XVT3D650SV - Help

    Close ups of main board
    Attached Files

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  • bammbammfran
    replied
    Re: Vizio XVT3D650SV - Help

    probably the main board
    Can you post a straight on picture of that board (near the boitom of the board, one part looks burned, but that could be a shadow ??)

    Leave a comment:


  • newpey
    replied
    Re: Vizio XVT3D650SV - Help

    pictures!
    Attached Files

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  • newpey
    started a topic Vizio XVT3D650SV - Help

    Vizio XVT3D650SV - Help

    Hello all,

    I am reading and reading but can not seem to find what I need to get my TV working again.

    When I plug it in, the Vizio logo glows orange. It then dims a little but stays solid orange. I have no picture and no sound. The TV does not want to turn on at all. I replaced the power board with a tested good one. Nothing changed.

    I am GUESSING it is a problem with the main board but not sure. I have a multimeter I just need to be told what to test and I can certainly do that.

    Attached are pictures. Thank you guys so much for the help in advance!
    ~Chris
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