Vizio 26" VW26L Flickering white screen

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  • CR Designs
    Badcaps Veteran
    • Dec 2012
    • 430
    • USA

    #41
    Re: Vizio 26" VW26L Flickering white screen

    Originally posted by budm
    Well that means there are more circuits on the board have failed, there are voltage regulators and switching power supplies on the T-CON that will need to be checked out next.
    Budm ,Got It torn down, I spotted this mosfet. discoloring on top of component. Here are the readings also see picture

    1&8 =1.113
    1&7= 03.72
    1&6=03.71
    1&5= 03.68

    2&8=1.105
    2&7=03.68
    2&6=03.67
    2&5=03.68

    3&8=1.107
    3&7=03.70
    3&6=03.71
    3&5=03.71

    4&8=1.108
    4&7=03.71
    4&6=03.72
    4&5=03.72

    Comment

    • CR Designs
      Badcaps Veteran
      • Dec 2012
      • 430
      • USA

      #42
      Re: Vizio 26" VW26L Flickering white screen

      Forgot to post picture
      Attached Files

      Comment

      • CR Designs
        Badcaps Veteran
        • Dec 2012
        • 430
        • USA

        #43
        Re: Vizio 26" VW26L Flickering white screen

        Here's the number on the mosfet .

        S408A
        2ZL1
        820

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #44
          Re: Vizio 26" VW26L Flickering white screen

          Need to search for the pin out.
          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

          • CR Designs
            Badcaps Veteran
            • Dec 2012
            • 430
            • USA

            #45
            Re: Vizio 26" VW26L Flickering white screen

            Originally posted by budm
            Need to search for the pin out.
            O.K budm you lost me on the pin out. I'm still learning this stuff.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA

              #46
              Re: Vizio 26" VW26L Flickering white screen

              Need to search for the spec sheet of that IC which will tell us what the pins are for that IC.
              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

              • CR Designs
                Badcaps Veteran
                • Dec 2012
                • 430
                • USA

                #47
                Re: Vizio 26" VW26L Flickering white screen

                Originally posted by budm
                Need to search for the spec sheet of that IC which will tell us what the pins are for that IC.
                O.k I will look for it,Thanks

                Comment

                • selldoor
                  Slow Learner
                  • Dec 2010
                  • 7870

                  #48
                  Re: Vizio 26" VW26L Flickering white screen

                  Can you check the number - perhaps post a close up pic showing it, as I cant find anything.
                  Please upload pictures using attachment function when ask for help on the repair
                  http://www.badcaps.net/forum/showthread.php?t=39740

                  Comment

                  • CR Designs
                    Badcaps Veteran
                    • Dec 2012
                    • 430
                    • USA

                    #49
                    Re: Vizio 26" VW26L Flickering white screen

                    Originally posted by selldoor
                    Can you check the number - perhaps post a close up pic showing it, as I cant find anything.
                    selldoor,I will get a picture. I have been looking also no luck

                    Comment

                    • CR Designs
                      Badcaps Veteran
                      • Dec 2012
                      • 430
                      • USA

                      #50
                      Re: Vizio 26" VW26L Flickering white screen

                      Originally posted by selldoor
                      Can you check the number - perhaps post a close up pic showing it, as I cant find anything.
                      Here's the pictures
                      Attached Files

                      Comment

                      • selldoor
                        Slow Learner
                        • Dec 2010
                        • 7870

                        #51
                        Re: Vizio 26" VW26L Flickering white screen

                        Can you try cleaning it with Isopropyl alcohol see if any more letters?
                        It may be proprietary part
                        Any more the same on the board?
                        Please upload pictures using attachment function when ask for help on the repair
                        http://www.badcaps.net/forum/showthread.php?t=39740

                        Comment

                        • CR Designs
                          Badcaps Veteran
                          • Dec 2012
                          • 430
                          • USA

                          #52
                          Re: Vizio 26" VW26L Flickering white screen

                          Originally posted by selldoor
                          Can you check the number - perhaps post a close up pic showing it, as I cant find anything.
                          Selldoor, Cleaned the component off This is the number.

                          /S408A
                          2ZL1
                          820

                          looks like a slash mark in front of the S. I can see the number very cleanly now.

                          Comment

                          • CR Designs
                            Badcaps Veteran
                            • Dec 2012
                            • 430
                            • USA

                            #53
                            Re: Vizio 26" VW26L Flickering white screen

                            Originally posted by selldoor
                            Can you try cleaning it with Isopropyl alcohol see if any more letters?
                            It may be proprietary part
                            Any more the same on the board?
                            Only one on this board

                            Comment

                            • selldoor
                              Slow Learner
                              • Dec 2010
                              • 7870

                              #54
                              Re: Vizio 26" VW26L Flickering white screen

                              Well this isnt going to help much but I am handing the search back over as I am off to bed

                              Found this http://www.aliexpress.com/item-img/5...464161981.html

                              So IS looks like the manufacturer logo. and the middle line might be 2ZLI not one - Good Hunting
                              Please upload pictures using attachment function when ask for help on the repair
                              http://www.badcaps.net/forum/showthread.php?t=39740

                              Comment

                              • selldoor
                                Slow Learner
                                • Dec 2010
                                • 7870

                                #55
                                Re: Vizio 26" VW26L Flickering white screen

                                Im going to be in trouble now!! - cant leave it alone!!

                                http://www.alibaba.com/product-gs/54...408A_2ZLI.html

                                You could try and contact and ask for a data sheet but I think it could be a site that
                                just builds on your enquiry to make you think they have got one. Who knows?
                                Please upload pictures using attachment function when ask for help on the repair
                                http://www.badcaps.net/forum/showthread.php?t=39740

                                Comment

                                • Th3_uN1Qu3
                                  Believe in
                                  • Jul 2010
                                  • 6031
                                  • Romania

                                  #56
                                  Re: Vizio 26" VW26L Flickering white screen

                                  What you have there isn't a MOSFET or any kind of power device, it's an EEPROM memory. Dead giveaway are the SCL and SDA testpoints right next to it. IS is the manufacturer logo - ISSI made it, and 408A is their code for 24C08A in TSSOP package.

                                  Search for 408A in this PDF and you'll see i'm right. Sadly, i don't think that's your problem.
                                  Last edited by Th3_uN1Qu3; 03-21-2013, 05:58 PM.
                                  Originally posted by PeteS in CA
                                  Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
                                  A working TV? How boring!

                                  Comment

                                  • CR Designs
                                    Badcaps Veteran
                                    • Dec 2012
                                    • 430
                                    • USA

                                    #57
                                    Re: Vizio 26" VW26L Flickering white screen

                                    Originally posted by budm
                                    Well that means there are more circuits on the board have failed, there are voltage regulators and switching power supplies on the T-CON that will need to be checked out next.
                                    What do we check next guys?

                                    Comment

                                    • selldoor
                                      Slow Learner
                                      • Dec 2010
                                      • 7870

                                      #58
                                      Re: Vizio 26" VW26L Flickering white screen

                                      In focus picture of the rest of the TCON in as many pictures as it takes to get
                                      it a decent size. Retest the fuse now you can get at it.
                                      Please upload pictures using attachment function when ask for help on the repair
                                      http://www.badcaps.net/forum/showthread.php?t=39740

                                      Comment

                                      • CR Designs
                                        Badcaps Veteran
                                        • Dec 2012
                                        • 430
                                        • USA

                                        #59
                                        Re: Vizio 26" VW26L Flickering white screen

                                        Originally posted by selldoor
                                        In focus picture of the rest of the TCON in as many pictures as it takes to get
                                        it a decent size. Retest the fuse now you can get at it.
                                        selldoor,here's the pictures
                                        Attached Files

                                        Comment

                                        • CR Designs
                                          Badcaps Veteran
                                          • Dec 2012
                                          • 430
                                          • USA

                                          #60
                                          Re: Vizio 26" VW26L Flickering white screen

                                          Originally posted by selldoor
                                          In focus picture of the rest of the TCON in as many pictures as it takes to get
                                          it a decent size. Retest the fuse now you can get at it.
                                          Last 2 pictures
                                          Attached Files

                                          Comment

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