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Vizio XVT3D554SV with red "sploteches"

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    Vizio XVT3D554SV with red "sploteches"

    I have an interesting issue with my TV. When turning on "cold" (been in standby for a few hours), the screen comes on with red "splotches" that flicker for a while until it warms up. After it warms up, the splotches are gone.

    I've done a factor reset, but the problem exists even when booting with the logo shown on the screen; you can see some red "artifacts" flickering on the silver/white Vizio boot logo.
    • All inputs work (with sound) but I didn't test the VGA input (I don't have a source that old anymore)
    • Menus work and "flow" smoothly
    • Nothing freezes
    • Screen is crisp and clear, no distortion whatsoever.
    • Even with the red splotches, the picture itself is good


    My "hypothesis"

    I think there is a cold solder joint somewhere, but I don't want to go replacing components willy-nilly. I think it may be the T-Con board and a failed component/connection. It also sounds like it could be a power supply where the voltage may fluctuate until it warms up.

    I'm a novice at board level repair, but it's not entirely foreign to me. If someone could point me in a direction to begin troubleshooting (or if you've seen this before), I would appreciate it immensely.

    Thanks for your time!
    Last edited by mrfixit95; 08-26-2018, 08:51 PM.

    #2
    Re: Vizio XVT3D554SV with red "sploteches"

    "you can see some red "artifacts" flickering on the silver/white Vizio boot logo." But we cannot see anything. You have the TV we do not.
    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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