Samsung UN46B7100 bad panel?

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  • aaronwt6
    Badcaps Veteran
    • Apr 2013
    • 855
    • US
    #1

    Samsung UN46B7100 bad panel?

    I already know the answer guys but lay the bad news on me. Was hoping tcon from the persons description on craigslist but now I don't think so. Has 100s of horizontal whites lines plus the two big vertical stripes. Weird thing is it didn't show any image at all until I reseated the cables.
    Attached Files
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    • aaronwt6
      Badcaps Veteran
      • Apr 2013
      • 855
      • US
      #2
      Re: Samsung UN46B7100 bad panel?

      Stinks too cause its a real nice set. Cosmetically perfect.
      Attached Files

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        • aaronwt6
          Badcaps Veteran
          • Apr 2013
          • 855
          • US
          #3
          Re: Samsung UN46B7100 bad panel?

          I guess it could be tab bonds. It's got a severe latency / ghosting effect.
          Attached Files

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            • aaronwt6
              Badcaps Veteran
              • Apr 2013
              • 855
              • US
              #4
              Re: Samsung UN46B7100 bad panel?

              Lines are getting more prominent after warm up.
              Attached Files

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                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: Samsung UN46B7100 bad panel?

                  I say bad TFT drive IC.
                  Attached Files
                  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

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Samsung UN46B7100 bad panel?

                      Panel, or TFT IC as Budm mentions. Most likely it has been water damaged, extremely common now LED/LCD put tabs on bottom of panel (water just drops right on to them...)
                      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

                        • aaronwt6
                          Badcaps Veteran
                          • Apr 2013
                          • 855
                          • US
                          #7
                          Re: Samsung UN46B7100 bad panel?

                          I'm guessing that IC is embedded on the tabs? I don't see any obvious damage anywhere.

                            Comment

                            • aaronwt6
                              Badcaps Veteran
                              • Apr 2013
                              • 855
                              • US
                              #8
                              Re: Samsung UN46B7100 bad panel?

                              And also assume that I may as well part it out and call it a wash huh? Man, I hate to do that.

                                Comment

                                • aaronwt6
                                  Badcaps Veteran
                                  • Apr 2013
                                  • 855
                                  • US
                                  #9
                                  Re: Samsung UN46B7100 bad panel?

                                  I have the thing mostly torn down now. Doesn't appear to be an liquid damage. Really does seem dumb having stuff on the bottom. Just cleaning the screen with liquid could cause issues.

                                    Comment

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