Samsung LA32R71B Picture Issue

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  • Jarvis_7
    New Member
    • Apr 2021
    • 6
    • Ro
    #1

    Samsung LA32R71B Picture Issue

    Hi,

    I have a Samsung LA32R71B 32" LCD TV, it works great, however, sometimes, the image is getting distorted as seen in the photo below. However, I can easily fix it by gently tapping on the right lower side of the back of the TV.
    From what I can see from photos and videos, that's where the power supply on this TV is.

    Can anyone point me out in the right direction to fix this issue?
    The fact that it is intermittent and that can be fixed by a tap at the back gives me hope that it's not a serious issue and that the TV can be saved and fixed.

    Thanks!

    The issue when it manifests:


    The label with the model of the TV:
    Attached Files
    Tags: None
    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12206
      • U.S.
      #2
      Re: Samsung LA32R71B Picture Issue

      Take the back cover off, check all cable and ribbon connections, maybe clean the connectors with some isoprophyl alcohol if that and re-seating the connectors doesnt work, take powerboard out and check the solder joints on the underside, never force off a connector or cable, youtube is your friend for how to videos. can google images of bad solder joints if needed.
      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

        • Jarvis_7
          New Member
          • Apr 2021
          • 6
          • Ro
          #3
          Re: Samsung LA32R71B Picture Issue

          Originally posted by nomoresonys
          Take the back cover off.
          Thanks for the help!

          I was thinking, could this be a faulty capacitor in the power supply?
          I've seen that on this particular model, the only thing installed on that side is the power supply unit.

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12206
              • U.S.
              #4
              Re: Samsung LA32R71B Picture Issue

              I don't know, maybe try heating up the capacitors on the powerboard with a hairdryer, see if the image clears up if only for a bit.
              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

                • Jarvis_7
                  New Member
                  • Apr 2021
                  • 6
                  • Ro
                  #5
                  Re: Samsung LA32R71B Picture Issue

                  The issue is not permanent, the TV works fine for days and then starts to act up, but one gentle tap on the right back side and it's back to working fine for days.

                    Comment

                    • dick_barton
                      Badcaps Legend
                      • Aug 2015
                      • 6643
                      • Wales
                      #6
                      Re: Samsung LA32R71B Picture Issue

                      It sounds like you may have an issue with the tab bonding at that location to the panel from the panel circuit board if a tap at the edge of the panel resolves the issue.

                      Fitting a shim may solve this issue. A search of the forum will give more information.
                      Willing to help but I'm no expert.

                        Comment

                        • nomoresonys
                          Badcaps Legend
                          • Jan 2013
                          • 12206
                          • U.S.
                          #7
                          Re: Samsung LA32R71B Picture Issue

                          Originally posted by dick_barton
                          it sounds like you may have an issue with the tab bonding at that location to the panel from the panel circuit board if a tap at the edge of the panel resolves the issue.

                          Fitting a shim may solve this issue. A search of the forum will give more information.
                          +1
                          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

                            • Jarvis_7
                              New Member
                              • Apr 2021
                              • 6
                              • Ro
                              #8
                              Re: Samsung LA32R71B Picture Issue

                              Originally posted by dick_barton
                              It sounds like you may have an issue with the tab bonding
                              It's not at the edge of the panel, it's more like on the lower back side of the TV, right around where the power supply is. At this point i'm just trying to figure out what could be wrong and if I can fix it.

                              Hoping it is either a connector that is not seated properly anymore or a capacitor that is on it's last days.

                                Comment

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