LG 3DTV 47LW5700 full screen of artifacts on power on

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  • ChaosLegionnaire
    HC Overclocker
    • Jul 2012
    • 3259
    • Singapore
    #1

    LG 3DTV 47LW5700 full screen of artifacts on power on

    today, when my mom turned on her tv to watch the dark knight rises on tv, the picture was fine for a few mins at first, then it deteriorated to a full screen of artifacts like an abstract art painting as shown in the attachment. i tried power cycling the tv but it still turns on and displays the lg logo as a screenful of artifacts. after we tried running the tv for 15 mins, the picture cleared up a bit but it was still very wavy and liney.

    any idea whats wrong with the tv? i only encountered artifacting problems like this when my computers had a gpu that died. could it be either bad caps or a cracked solder joint since the artifacts cleared up a bit when the tv heated up for awhile?
    Attached Files
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    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: LG 3DTV 47LW5700 full screen of artifacts on power on

      Service manual to start you off is available
      http://tinyurl.com/zydl969
      Willing to help but I'm no expert.

        Comment

        • Diah
          Badcaps Legend
          • Feb 2013
          • 6343
          • Germany
          #3
          Re: LG 3DTV 47LW5700 full screen of artifacts on power on

          did she watch it with 3D ?

          if yes or no, took the tv out from the plug for long time, to reset T.CON

            Comment

            • ReeceyBurger123
              Never Give Up !
              • May 2014
              • 7325
              • Britain
              #4
              Re: LG 3DTV 47LW5700 full screen of artifacts on power on

              Panel fault IMO. Try reflowing motherboard.
              Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

              https://www.facebook.com/Telford-Tel...7894576335359/

                Comment

                • Diah
                  Badcaps Legend
                  • Feb 2013
                  • 6343
                  • Germany
                  #5
                  Re: LG 3DTV 47LW5700 full screen of artifacts on power on

                  IMO... Mr. Panel..

                  hard reset enough by IN_Start from any Android Mobile with IR sender..

                    Comment

                    • ChaosLegionnaire
                      HC Overclocker
                      • Jul 2012
                      • 3259
                      • Singapore
                      #6
                      Re: LG 3DTV 47LW5700 full screen of artifacts on power on

                      Originally posted by Diah
                      did she watch it with 3D ?

                      if yes or no, took the tv out from the plug for long time, to reset T.CON
                      no she watched it in 2d. it was an analogue OTA broadcast.

                      exactly how long is "long"? i tried unplugging it till the standby light went out for about 30 mins and turned it back on but still a similar artifact pattern.

                        Comment

                        • Diah
                          Badcaps Legend
                          • Feb 2013
                          • 6343
                          • Germany
                          #7
                          Re: LG 3DTV 47LW5700 full screen of artifacts on power on

                          order menu by RC, if it show make factory reset, if not show menu

                          use In_STOP then put code 0413 TV will go standby them after while you turn it on.
                          Last edited by Diah; 03-13-2016, 06:08 AM. Reason: IN-STOP order

                            Comment

                            • ReeceyBurger123
                              Never Give Up !
                              • May 2014
                              • 7325
                              • Britain
                              #8
                              Re: LG 3DTV 47LW5700 full screen of artifacts on power on

                              Originally posted by Diah
                              IMO... Mr. Panel..

                              hard reset enough by IN_Start from any Android Mobile with IR sender..
                              Its PanelBurger to you ! Also IMO=In My Opinion.
                              Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                              https://www.facebook.com/Telford-Tel...7894576335359/

                                Comment

                                • ReeceyBurger123
                                  Never Give Up !
                                  • May 2014
                                  • 7325
                                  • Britain
                                  #9
                                  Re: LG 3DTV 47LW5700 full screen of artifacts on power on

                                  Try reflowing the motherboard I bet the Bga solder is failing as you said it cleared up.
                                  Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                                  https://www.facebook.com/Telford-Tel...7894576335359/

                                    Comment

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