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Samsung UN46D6420 Horizontal lines, now No Picture

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    #21
    Re: Samsung UN46D6420 Horizontal lines, now No Picture

    If I place the LVDS cable in it's "normal" place, I have only backlight on, no image at all.

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      #22
      Re: Samsung UN46D6420 Horizontal lines, now No Picture

      That's probably not the right place then...
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

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        #23
        Re: Samsung UN46D6420 Horizontal lines, now No Picture

        This is what I don't understand, the connector/cable could have a bad connection?

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          #24
          Re: Samsung UN46D6420 Horizontal lines, now No Picture

          Due to how the LVDS is transmitted over that cable that is unlikely.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

            #25
            Re: Samsung UN46D6420 Horizontal lines, now No Picture

            So, I should I try a T-con? That is cheaper.

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              #26
              Re: Samsung UN46D6420 Horizontal lines, now No Picture

              I have ordered one. I will let you know how it goes.

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                #27
                Re: Samsung UN46D6420 Horizontal lines, now No Picture

                This one looks almost(if not the same) as my problem and it looks like a T-con fixed it.
                https://www.badcaps.net/forum/showth...rizontal+lines

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                  #28
                  Re: Samsung UN46D6420 Horizontal lines, now No Picture

                  I have my un46d6420ufxza disassembled. What do I have to do to view the tab edge connectors on the led screen? Do i need to remove the black tape around the edge of the screen? What else after that?

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                    #29
                    Re: Samsung UN46D6420 Horizontal lines, now No Picture

                    I have LA40D550 with same issue as OP, horizontal lines/ghosting is flickering in top 2/3 of screen only. Replace T-CON, issue persists. Caps look and measure capacitance fine. Next step is to check ripple on PSU rails with CRO, possibly check ESR of caps (if I can find/build ESR meter) or more likely check bonding of tabs like https://www.badcaps.net/forum/showth...LN52A530P1FXZA

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                      #30
                      Re: Samsung UN46D6420 Horizontal lines, now No Picture

                      Originally posted by tibimakai View Post
                      This one looks almost(if not the same) as my problem and it looks like a T-con fixed it.
                      https://www.badcaps.net/forum/showth...rizontal+lines
                      Any luck? I have the same issue with Vizio M501D and will be replacing the T-Con later this week.

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