need help identifying a component please

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  • Bisketti
    Badcaps Veteran
    • Oct 2013
    • 252
    • Ireland

    #1

    need help identifying a component please

    Hi this is a 15.6" LED laptop screen LP156WH$ (TL) (CL1).
    Pno: 6870s-1128a
    lp156wh4-tla1

    Ic: US2.
    The screes is working but no backlight.
    Any help would be much appreciated
    Attached Files
  • selldoor
    Slow Learner
    • Dec 2010
    • 7870

    #2
    Re: need help identifying a component please

    What laptop is it off?
    Please upload pictures using attachment function when ask for help on the repair
    http://www.badcaps.net/forum/showthread.php?t=39740

    Comment

    • Bisketti
      Badcaps Veteran
      • Oct 2013
      • 252
      • Ireland

      #3
      Re: need help identifying a component please

      Its from a hpg6 but this is the screens pcb not the motherboard, the schematics dont show the LED screens pcb.

      Comment

      • selldoor
        Slow Learner
        • Dec 2010
        • 7870

        #4
        Re: need help identifying a component please

        Ok thats where I was going - Is it burnt? Can you clean it up with Isopropyl Alcohol and
        read any more numbers off it?
        Please upload pictures using attachment function when ask for help on the repair
        http://www.badcaps.net/forum/showthread.php?t=39740

        Comment

        • Bisketti
          Badcaps Veteran
          • Oct 2013
          • 252
          • Ireland

          #5
          Re: need help identifying a component please

          Unfortunately no its already cleaned with IPA.

          Comment

          • selldoor
            Slow Learner
            • Dec 2010
            • 7870

            #6
            Re: need help identifying a component please

            It may be a proprietary part anyway but can you list the numbers you can see.
            in the same grouping eg
            Top line *****
            nextline ***** and so on
            Please upload pictures using attachment function when ask for help on the repair
            http://www.badcaps.net/forum/showthread.php?t=39740

            Comment

            • Bisketti
              Badcaps Veteran
              • Oct 2013
              • 252
              • Ireland

              #7
              Re: need help identifying a component please

              Sorted I had an almost identical board I had cut from smashed led screen and its a Sm4500 (da1116) QFN20 Power IC Chip Chipset I repaired the damaged track and transplanted the chip and Backlight working again..Result

              Comment

              • selldoor
                Slow Learner
                • Dec 2010
                • 7870

                #8
                Re: need help identifying a component please

                Great - I just asked Tomadochi to have a look on your other thread.
                Perhaps you can help him out?
                Please upload pictures using attachment function when ask for help on the repair
                http://www.badcaps.net/forum/showthread.php?t=39740

                Comment

                • Bisketti
                  Badcaps Veteran
                  • Oct 2013
                  • 252
                  • Ireland

                  #9
                  Re: need help identifying a component please

                  It blew again after about 20mins so not sure if its the led backlights or laptop itself, back to the drawing board on this one.

                  Comment

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