How to test the screen

Discussion in 'MacBook Pro' started by 50L, Oct 19, 2014.

  1. 50L macrumors regular

    50L

    Joined:
    Mar 2, 2014
    #1
    this is probably a stupid question with no possible answer :

    I have a water-damaged machine. it's still starting up with heavy fan sound and no screen, when I plug it to my TV with HDMI there's still no signal.

    Does it mean that my screen is completely dead or is it a big chance it's only a problem with my graphic card, and how can i check that?
     
  2. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #2
    If you're not getting any signal from the HDMI port, then its not just the screen that is damaged, but the logic board. Typically if a laptop incurs water damage the screen is usually not the component that shorts out, but the logic board.
     

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