LG 47LB630v to dark screen image

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  • bohaboha
    Badcaps Veteran
    • Nov 2012
    • 983
    • sweden

    #1

    LG 47LB630v to dark screen image

    Everything works as it should except that it is too dark screen image and the backlight is blue is it normal with bleu backlight ?
    What Can I Do To Get Brighter Image​
    Attached Files
  • EazyBone
    Badcaps Legend
    • Jun 2023
    • 1328
    • United states

    #2
    Change the backlights. Turning blue is a defect of leds. When you say dark image I assume it's the blue your talking about since we don't have an image, but it's a pretty easy thing to do, as long as you follow a guide and be very careful with the screen and ribbons connected to screen

    Comment

    • vinceroger69
      Badcaps Legend
      • Mar 2012
      • 6714
      • uk

      #3
      just repaired one of these sets and yes a new set of backlights solved it.

      Comment

      • Davi.p
        Hobbist Tech
        • Sep 2009
        • 4326
        • Italy - Milan

        #4
        the best thing is maybe replace all single leds, strips on market can be easily second hand without notice..

        Comment

        • bohaboha
          Badcaps Veteran
          • Nov 2012
          • 983
          • sweden

          #5
          Thank you all for your help here some pictures of the actual screenshots to get a better idea you all agree that it should be backlight fault but I am a little puzzled because it looks like the lights are blue as well as original and this tv has been like that for almost two years if not more and then everything works. Usually if there is a fault with the backlight then there is usually no picture or is it something that I'm missing ? Couldn't there be something in the settings that could affect ?
          Attached Files

          Comment

          • Davi.p
            Hobbist Tech
            • Sep 2009
            • 4326
            • Italy - Milan

            #6
            Not useful for the forum repeating things tons of times, use search feature please..

            Comment

            • vinceroger69
              Badcaps Legend
              • Mar 2012
              • 6714
              • uk

              #7
              Originally posted by bohaboha
              Thank you all for your help here some pictures of the actual screenshots to get a better idea you all agree that it should be backlight fault but I am a little puzzled because it looks like the lights are blue as well as original and this tv has been like that for almost two years if not more and then everything works. Usually if there is a fault with the backlight then there is usually no picture or is it something that I'm missing ? Couldn't there be something in the settings that could affect ?
              This is just faulty led strips i have changed loads expecially on lgs they seem to go blue with time i have also had the blue issue on two samsungs recently (i have had no issues with the strips i buy from ali express)

              Comment

              • bohaboha
                Badcaps Veteran
                • Nov 2012
                • 983
                • sweden

                #8
                Originally posted by Davi.p
                Not useful for the forum repeating things tons of times, use search feature please..
                Sorry but I haven't read in any thread that backlight becomes blue until they don't work anymore but you learn every day

                Comment

                • bohaboha
                  Badcaps Veteran
                  • Nov 2012
                  • 983
                  • sweden

                  #9
                  vinceroger69 thank you so much for your reply

                  Comment

                  • EazyBone
                    Badcaps Legend
                    • Jun 2023
                    • 1328
                    • United states

                    #10
                    Originally posted by bohaboha

                    Sorry but I haven't read in any thread that backlight becomes blue until they don't work anymore but you learn every day
                    don't worry bout that.

                    All good blue lights happen, change em and you'll be good to go.

                    They actually will stay good and blue for a long time, not an indication the light is going to fail necessary, has another scientific reason. Our streetlights down here in Florida fail also and turn blue, kind of looks cool but it's definitely annoying when driving.

                    Comment

                    • yokoono
                      Badcaps Veteran
                      • Apr 2010
                      • 486

                      #11
                      LEDs have a very thin phosphor film on their surface. Because of the high temperature, that phosphorus cracks and falls. Thus the light becomes blue.​

                      Comment

                      • Davi.p
                        Hobbist Tech
                        • Sep 2009
                        • 4326
                        • Italy - Milan

                        #12
                        any thread that backlight becomes blue until they don't work anymore
                        Have i read bad or the last photos is the actual working state? If tv shows as the photos then the led are well working, the only problem is the phosphor that is gone at woman of easy dress..
                        There's nothing else that you can do, only change leds..

                        Comment

                        • bohaboha
                          Badcaps Veteran
                          • Nov 2012
                          • 983
                          • sweden

                          #13
                          EazyBone .Yokoono and Davi.p Thank you

                          Comment

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