Polaroid tlx 04244b sound but no picture

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  • eagle00799
    Badcaps Veteran
    • May 2012
    • 322
    • USA

    #21
    Re: Polaroid tlx 04244b sound but no picture

    Yes i am leaning on the lamps being bad, my reading are very simular to these.
    Thank you for all the newbie patience. I've attached a picture with the pins labled. Here are my combo testing results. All combinations not listed read as open/OOR:

    Old Master T1:
    Pin 2-4: 8.49k Ohms
    Pin 2-5: 8.49k Ohms
    Pin 2-6: 8.47k Ohms
    Pin 2-7: 8.48k Ohms
    Pin 2-8: 23.3 Ohms
    Old Master T2:
    Pin 1-2: 0.3 Ohms
    Pin 1-4: 8.39k Ohms
    Pin 1-5: 8.39k Ohms
    Pin 1-6: 8.38k Ohms
    Pin 1-7: 8.47k Ohms
    Pin 1-8: 23.4 Ohms
    Pin 2-4: 8.45k Ohms
    Pin 2-5: 8.46k Ohms
    Pin 2-6: 8.46k Ohms
    Pin 2-7: 8.45k Ohms
    Pin 2-8: 25.8 Ohms

    Old Slave T1:
    Pin 2-4: 9.07k Ohms
    Pin 2-5: 9.08k Ohms
    Pin 2-6: 9.08k Ohms
    Pin 2-7: 9.07k Ohms
    Pin 2-8: 23.3 Ohms
    Old Slave T2:
    Pin 1-2: 0.3 Ohms
    Pin 1-4: 9.08k Ohms
    Pin 1-5: 9.05k Ohms
    Pin 1-6: 9.06k Ohms
    Pin 1-7: 9.07k Ohms
    Pin 1-8: 25.4 Ohms
    Pin 2-4: 9.07k Ohms
    Pin 2-5: 9.05k Ohms
    Pin 2-6: 9.05k Ohms
    Pin 2-7: 9.04k Ohms
    Pin 2-8: 23.2 Ohms

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #22
      Re: Polaroid tlx 04244b sound but no picture

      It looks like you will have to look at the lamp assembly, it is going to tough to remove the LCD panel off the frame because some time the rubber cushion gets sticky and it get stuck to the LCD panel.
      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

      • eagle00799
        Badcaps Veteran
        • May 2012
        • 322
        • USA

        #23
        Re: Polaroid tlx 04244b sound but no picture

        Its confirmed now, 3 dead lamps. Does anyone know if the lcd panel can be used in other tv's?

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #24
          Re: Polaroid tlx 04244b sound but no picture

          Did you take the pictures of the bad lamps?
          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

          • eagle00799
            Badcaps Veteran
            • May 2012
            • 322
            • USA

            #25
            Re: Polaroid tlx 04244b sound but no picture

            No i didnt, sorry. now i plugged in and got a burning smell and only right side comes on. smoke came from the left board that the bulbs plug into and the plastic behind the board caught fire. i removed the top lamp,the 3rd from the bottom is out but not dark like the 6th from the bottom. The right side will stay on alot longer(approx. 5 minutes) now but after a while they will shut off.
            Attached Files

            Comment

            • eagle00799
              Badcaps Veteran
              • May 2012
              • 322
              • USA

              #26
              Re: Polaroid tlx 04244b sound but no picture

              Notice the discoloration(yellowish) of the trim piece that covers the board that burnt up, that would be the slave inverter side. Must of had a heat issue on that side. The bulb i took out is next to it, Tryed putting in a bulb from a vizio of the same size but it was noticably dimmer.
              Attached Files

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA

                #27
                Re: Polaroid tlx 04244b sound but no picture

                So the lamps are socketed in place? Are there any blue high voltage ballast caps on the board? Was the LCD panel easy to lift off, I afraid my arms are not long enough the really hold up the LCD panel up without having it sag down and crack it.
                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

                • eagle00799
                  Badcaps Veteran
                  • May 2012
                  • 322
                  • USA

                  #28
                  Re: Polaroid tlx 04244b sound but no picture

                  The lamps are pushed into place but the plastic clips the hold the center of the lamps are brittle plastic that breaks very easily and yes there are 18 blue ballast caps on the board and the lcd wasnt hard to get off.
                  I dont know yet if its worth replacing the lamps and the ballast board, Cant seem to find the bulbs anywhere so far.Discount-merchant has the board for 24.95

                  Comment

                  • budm
                    Badcaps Legend
                    • Feb 2010
                    • 40746
                    • USA

                    #29
                    Re: Polaroid tlx 04244b sound but no picture

                    I think I would check all the ballast caps to see if any one of them has resistance leakage, i ran into this setup like this before, some of the cap show 100K Ohms using meter and that enough leakage (the meter only put out 5v at he most, just think what happen to the cap when it is exposed to over 2000VAC) to cause other lamps to be dim since the one with leaky cap will draw most of the current, then it shutdown. You can see the body of cap with light brown color. I also had to make sure the board is really clean without contamination, otherwise the high voltage will leak through.
                    I replaced all the ballast cap on this TV. The plastic rail also turned brown from the heat of the leaky caps.
                    http://s807.photobucket.com/albums/y...nt%20FLX-3210/
                    I have a feeling you have bad ballast caps.
                    Last edited by budm; 09-17-2012, 11:07 PM.
                    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

                    • eagle00799
                      Badcaps Veteran
                      • May 2012
                      • 322
                      • USA

                      #30
                      Re: Polaroid tlx 04244b sound but no picture

                      I will have to look into those caps tomorrow,going to call it a night. Thanks Budm for all so help.

                      Comment

                      • budm
                        Badcaps Legend
                        • Feb 2010
                        • 40746
                        • USA

                        #31
                        Re: Polaroid tlx 04244b sound but no picture

                        I am going to bed too, it is getting late here in bay area.
                        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

                        • mtwellers
                          New Member
                          • Oct 2012
                          • 1
                          • USA

                          #32
                          Re: Polaroid tlx 04244b sound but no picture

                          Hi, I have the same Polaroid TLX 04244B that also produces sound but no picture. Did you ever get that working? I am new to this and not as savvy technically as you appear, but did take it apart and didn't notice any bulged caps or other obvious problems. Would love to get it working and keep it out of the landfill...
                          Thanks to anyone for your help.

                          Comment

                          • budm
                            Badcaps Legend
                            • Feb 2010
                            • 40746
                            • USA

                            #33
                            Re: Polaroid tlx 04244b sound but no picture

                            Post the pictures of your boards.
                            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

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