Samsung QE50Q67TAU - horizontal lines

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  • Rubenlily
    Member
    • Aug 2023
    • 37
    • Sweden
    #1

    Samsung QE50Q67TAU - horizontal lines

    Hello,

    First of all I'm new here. While looking I found this amazing forum and I'm very happy I did. Now for my problem:

    I picked up a Samsung UHD QLED QE50Q67TAU from 2021 for $50 knowing it was defective. The seller said it had black lines and that it could get stuck in boot randomly.

    I've tried a new power cable, hard reset, opening up and jiggling all cables, pressing everywhere to see if I get a reaction but I've gotten nothing. I've tried the tape method but I've only managed to get the lines worse.

    I'm no expert but I've done the tape method a few times successfully but this time I'm stuck. The TV only has one ribbon cable from motherboard to panel and one ribbon cable (not sure of the correct name) connecting the two halves.

    The black lines (and some coloured) are not that many and they shift some. Some goes through the whole screen and some doesn't. With tape I've managed to make them more and worse but that's it.

    What would you suggest me doing? What do you think the problem is?

    I've submitted two pictures, first picture shows fewer lines when the TV is not tampered with and the second shows TV when I've used tape over 2 signals showing more lines and colors.





    I've also noticed a buzzing sound from the motherboard. Don't know what it means.
    Attached Files
    Last edited by Rubenlily; 08-16-2023, 01:36 PM.
    Tags: None
    • Rubenlily
      Member
      • Aug 2023
      • 37
      • Sweden
      #2
      Re: Horizontal black lines on Samsung 50"

      Fixed the title.

        Comment

        • Rubenlily
          Member
          • Aug 2023
          • 37
          • Sweden
          #3
          Re: Samsung QE50Q67TAU - horizontal lines

          Also blank picture (but with sound playing) when disconnecting one at a time.



          Attached Files

            Comment

            • Rubenlily
              Member
              • Aug 2023
              • 37
              • Sweden
              #4
              Re: Samsung QE50Q67TAU - horizontal lines

              Ok, I've done all the boring tests and tried with tape everywhere. Next step is to get a multimeter and try connections. I've heard panel problems is pain so I'm hoping someone can tell me it's not the panel... If I'm not lucky, I'll will try to just sell it since I've found another TV for free instead.

                Comment

                • nomoresonys
                  Badcaps Legend
                  • Jan 2013
                  • 12206
                  • U.S.
                  #5
                  Re: Samsung QE50Q67TAU - horizontal lines

                  If you can get the menu up/on screen display, see if the lines covering it too.
                  Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                    Comment

                    • Rubenlily
                      Member
                      • Aug 2023
                      • 37
                      • Sweden
                      #6
                      Re: Samsung QE50Q67TAU - horizontal lines

                      Originally posted by nomoresonys
                      If you can get the menu up/on screen display, see if the lines covering it too.
                      Yeah cover the menu.

                        Comment

                        • nomoresonys
                          Badcaps Legend
                          • Jan 2013
                          • 12206
                          • U.S.
                          #7
                          Re: Samsung QE50Q67TAU - horizontal lines

                          Maybe try a picture test: Settings > Support > Self Diagnosis > Picture Test
                          Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                            Comment

                            • nomoresonys
                              Badcaps Legend
                              • Jan 2013
                              • 12206
                              • U.S.
                              #8
                              Re: Samsung QE50Q67TAU - horizontal lines

                              Originally posted by Rubenlily
                              Hello,

                              First of all I'm new here. While looking I found this amazing forum and I'm very happy I did. Now for my problem:

                              I picked up a Samsung UHD QLED QE50Q67TAU from 2021 for $50 knowing it was defective. The seller said it had black lines and that it could get stuck in boot randomly.

                              I've tried a new power cable, hard reset, opening up and jiggling all cables, pressing everywhere to see if I get a reaction but I've gotten nothing. I've tried the tape method but I've only managed to get the lines worse.

                              I'm no expert but I've done the tape method a few times successfully but this time I'm stuck. The TV only has one ribbon cable from motherboard to panel and one ribbon cable (not sure of the correct name) connecting the two halves.

                              The black lines (and some coloured) are not that many and they shift some. Some goes through the whole screen and some doesn't. With tape I've managed to make them more and worse but that's it.

                              What would you suggest me doing? What do you think the problem is?

                              I've submitted two pictures, first picture shows fewer lines when the TV is not tampered with and the second shows TV when I've used tape over 2 signals showing more lines and colors.





                              I've also noticed a buzzing sound from the motherboard. Don't know what it means.
                              Test the buzzing, try it with ribbon cables from tcon to panel unhooked, unhook on tcon side to avoid shorts, see if it's still buzzing, then try it with cable from mainboard to tcon unhooked, see what you get. Last time I had mainboard buzzing it was bad solder joints, use stethoscope, hose or something to your ear and try to isolate the buzzing location.
                              Last edited by nomoresonys; 08-20-2023, 07:01 AM.
                              Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                                Comment

                                • nomoresonys
                                  Badcaps Legend
                                  • Jan 2013
                                  • 12206
                                  • U.S.
                                  #9
                                  Re: Samsung QE50Q67TAU - horizontal lines

                                  Use internet search, put in samsung horrizontal lines, there's a ton of info. available.
                                  Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                                    Comment

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