Asus VS248H backlight issues

Discussion in 'Video Cards & Monitors' started by tifkat, Sep 18, 2017.

  1. tifkat

    tifkat Member

    Joined:
    Aug 28, 2001
    Messages:
    96
    Location:
    Perth, Australia
    Hi all,

    I have an Asus VS248H 24" monitor from work. Used on my desktop for about 3.5 years. The backlight started to fail in the lower corner (left or right randomly), and then progressed to half-screen and finally full screen.

    I have rescued it from the bin and brought it home, with the hope of fixing it for use in a triple-screen simrig setup.

    I've pulled it apart and taken some photos of the power board, and have attached them here. I was hoping for a blown cap fix, but it doesn't look like that will be the case. As you can see the board does have some scorch marks from hot components, and I'm not sure it's fixable. Maybe a replacement?

    What I'm after is a more professional opinion, and perhaps some other ideas about what may be wrong? Is it likely to be something like a voltage regulator IC gone bad? Monitor description calls it a "Mercury-free LED-backlit panel" so it's not CCFL. Do LED backlights ever fail?

    I'll try attach hi-res images, for your viewing pleasure.

    [​IMG]
    https://i.imgur.com/pWOq7dz.jpg

    [​IMG]
    https://i.imgur.com/rc7KU1H.jpg

    [​IMG]
    https://i.imgur.com/eHAALdd.jpg

    [​IMG]
    https://i.imgur.com/yVcwJCf.jpg


    Edit: Changed Q about CCFL failing to LED failing.
     
    Last edited: Sep 18, 2017

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