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    Possible backlight fuse blown?

    Discussion in 'Alienware 18 and M18x' started by Mastermind5200, Jan 28, 2019.

  1. Mastermind5200

    Mastermind5200 Notebook Virtuoso

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    Ok so with my M18X, given it has stuck/burnt pixels, I tried to use a screen that I believed to be LVDS from my old latitude, but as soon as I powered on the laptop smoke erupted right around the LVDS port on the laptop, and with the native panel, it no longer shows backlight (panel does still work, just no backlight and stuck pixels as before)

    Is it possible that I damaged something on the board?
     
    Mastermind5200, Jan 28, 2019
    #1
  2. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    Of course it is....not all LVDS panels have the same pin configuration. Did you check pinout between the two panels? It’s very possible you sent power some place it wasn’t supposed to go
     
    Last edited: Jan 29, 2019
    Raidriar, Jan 28, 2019
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  3. Mastermind5200

    Mastermind5200 Notebook Virtuoso

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    No of course not
     
    Mastermind5200, Jan 28, 2019
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  4. imest

    imest Notebook Consultant

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    I can say, almost without a doubt, you have fried something on your motherboard.
     
    imest, Jan 29, 2019
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  5. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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    @t456 is probably your only hope at this point
     
    Raidriar, Jan 29, 2019
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  6. Mastermind5200

    Mastermind5200 Notebook Virtuoso

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    Well now, the brightness is halfway fixed and screen is flickering, as well as pixels are literally dead, not stuck
     
    Mastermind5200, Jan 29, 2019
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  7. imest

    imest Notebook Consultant

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    See if you can get the mother board looked at, damage might not be that bad?
     
    imest, Jan 31, 2019
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  8. Mastermind5200

    Mastermind5200 Notebook Virtuoso

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    I'd have no clue where to start to look, or even where I would take it. But I'll find a way.
     
    Mastermind5200, Jan 31, 2019
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  9. t456

    t456 1977-09-05, 12:56:00 UTC

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    If you know both panel nrs. and can find the schematics of this model then it's fairly easy to point out which smd chips are likely to have been damaged or killed.
     
    t456, Jan 31, 2019
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    custom90gt likes this.