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Samsung LE40B620R3W no back light

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    #21
    Re: Samsung LE40B620R3W no back light

    What is the LCD screen model number so we can look up the spec sheet? We need to find out if the lamps are CCFL or EEFL.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment


      #22
      Re: Samsung LE40B620R3W no back light

      Ok I'll have a look at that tomorrow is there a place to order them from is there?

      Comment


        #23
        Re: Samsung LE40B620R3W no back light

        Hi budm sorry I missed your post requesting the panel number I have taken a picture
        Attached Files

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          #24
          Re: Samsung LE40B620R3W no back light

          I could not find the spec for the LTF400HF12 which has 14 LAMPS, I found the spec for the HF16 but it only has 12 lamps.
          Last edited by budm; 12-03-2015, 02:02 PM.
          Never stop learning
          Basic LCD TV and Monitor troubleshooting guides.
          http://www.badcaps.net/forum/showthr...956#post305956

          Voltage Regulator (LDO) testing:
          http://www.badcaps.net/forum/showthr...999#post300999

          Inverter testing using old CFL:
          http://www.badcaps.net/forum/showthr...er+testing+cfl

          Tear down pictures : Hit the ">" Show Albums and stories" on the left side
          http://s807.photobucket.com/user/budm/library/

          TV Factory reset codes listing:
          http://www.badcaps.net/forum/showthread.php?t=24809

          Comment


            #25
            Re: Samsung LE40B620R3W no back light

            They are CCFL's.

            Comment


              #26
              Re: Samsung LE40B620R3W no back light

              so if I can find these bulbs and replace them are we saying this will fix the unit? or is there likly still a board issue on top?

              Comment


                #27
                Re: Samsung LE40B620R3W no back light

                Your best bet would be to look out for a set that that has a damaged screen and strip for parts. mostly any old 40"LCD model you should be able to use with a little bit of work to fit

                Comment


                  #28
                  Re: Samsung LE40B620R3W no back light

                  Good bulbs will almost certainly fix your issue.

                  Comment


                    #29
                    Re: Samsung LE40B620R3W no back light

                    would it be something a repair shop could supply me out of an old set, I've had a look around and people want silly money for broken/damaged sets :-( its not looking good

                    Comment


                      #30
                      Re: Samsung LE40B620R3W no back light

                      It wouldn't hurt to contact repair shops. Like I said in an earlier post, another member posted that he bought six bulbs for 5 pounds.

                      Comment

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