Samsung lt19b300 backlight issue

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  • mitsukiso
    Member
    • Sep 2017
    • 31
    • Италия
    #1

    Samsung lt19b300 backlight issue

    Hi guys!
    i've received a monitor samsung lt19b300 recently with problem - it won't turn on. Changing 1 diode has solved the problem and it worked fine for 3 days. Then started to reboot himself, loosing backlight, not turning on with standby light flashing 2 times.
    i've checked all the power components out of the board, they look fine. resolded all the pins just in case of micro crepes which i may not see. all the leds on the stripe are okay (!).
    seems to be the main board?..
    can be the led stripe defective while having all the leds okay?..
    thanks in advance!
    Tags: None
    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa
      #2
      Re: Samsung lt19b300 backlight issue

      Did you replace diode with same specs?
      I assume no responsibility for any stupid suggestions I might post.

        Comment

        • mitsukiso
          Member
          • Sep 2017
          • 31
          • Италия
          #3
          Re: Samsung lt19b300 backlight issue

          yes, absolutely the same one

            Comment

            • mitsukiso
              Member
              • Sep 2017
              • 31
              • Италия
              #4
              Re: Samsung lt19b300 backlight issue

              Originally posted by dskall
              Did you replace diode with same specs?
              do you think i should try another one? it was a used actually, from other samsung motherboard

                Comment

                • dskall
                  Badcaps Legend
                  • Oct 2016
                  • 2905
                  • usa
                  #5
                  Re: Samsung lt19b300 backlight issue

                  Can we get some pictures?
                  I assume no responsibility for any stupid suggestions I might post.

                    Comment

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