Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Where is the back light in a laptop?

Options
  • 26-02-2009 8:20pm
    #1
    Run_to_da_hills
    Closed Accounts Posts: 20,009 ✭✭✭✭


    Bit confused, is the back light built into the monitor?


Comments

  • Options
    #2
    AlmightyCushion
    Moderators, Education Moderators, Technology & Internet Moderators Posts: 35,056 Mod ✭✭✭✭AlmightyCushion


    Yes, it's behind the screen.


  • Options
    #3
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,827 Mod ✭✭✭✭Capt'n Midnight


    it's usually on the right hand side of the screen

    a very thin fluorescent tube vertically

    a sheet of transparent plastic conducts the light across the back of the screen


  • Options
    #4
    Run_to_da_hills
    Closed Accounts Posts: 20,009 ✭✭✭✭Run_to_da_hills


    Capt'n Midnight wrote: »
    it's usually on the right hand side of the screen

    a very thin fluorescent tube vertically

    a sheet of transparent plastic conducts the light across the back of the screen
    Cheers, can you get this seperate or dose it need a complete screen replacement?


  • Options
    #5
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,827 Mod ✭✭✭✭Capt'n Midnight


    it's probably the (replaceable) inverter module at bottom of the screen thats gone
    it converts low voltage to high voltage, the tube is a cold cathode and they are very reliable unless you physically break them


  • Options
    #6
    Run_to_da_hills
    Closed Accounts Posts: 20,009 ✭✭✭✭Run_to_da_hills


    Capt'n Midnight wrote: »
    it's probably the (replaceable) inverter module at bottom of the screen thats gone
    it converts low voltage to high voltage, the tube is a cold cathode and they are very reliable unless you physically break them
    Cheers, Its in my brothers Dell Latitude, screen very dim. I thought i'd ask a few questions before I rip it apart. Ill try the Inverter first.


  • Advertisement
  • Options
    #7
    daithip
    Registered Users Posts: 219 ✭✭daithip


    You should check out this link before you do

    http://www.laptoprepair101.com/laptop/2007/01/31/replace-screen-inverter-fix-backlight/comment-page-16/


Advertisement