Polaroid TDA-03211C No Video

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  • crdz66
    Badcaps Veteran
    • Nov 2012
    • 242
    • USA

    #1

    Polaroid TDA-03211C No Video

    Hello Fellas.

    I have a Polaroid TDA-03211C with video problems.
    After the power on the Tv, Polaroid Message and Backlight turn on, but after 2 to 3 sec later turn off.

    I know is very common problem on this tv, but mostly point to capacitors.
    But, I desoldering and check one by one out to the board and everything is fine. Blue Meter and Capacitance.

    Do you thing the cause can be a bad lamp send me the signal turn off the backlight? The Tv keeps on (Blue light indicator).

    Any ideas.
    Thanks for looking
  • drpj23
    Badcaps Veteran
    • May 2012
    • 528
    • USA

    #2
    Re: Polaroid TDA-03211C No Video

    Do you have a visual? (you will need a source of light)
    How are your voltages looking from the psu and is there a BL_ON signal?

    Pics will help on this too.

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #3
      Re: Polaroid TDA-03211C No Video

      This one is also known for two bad caps (10uf 450V) for the inverter circuit.
      http://s807.photobucket.com/albums/y...cpZZ1QQtppZZ20

      You might as well replace the caps as a set.
      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

      • crdz66
        Badcaps Veteran
        • Nov 2012
        • 242
        • USA

        #4
        Re: Polaroid TDA-03211C No Video

        The power board supply the next voltages
        5.01v
        12.1v
        23.45v
        according with printed, need to be 5v,12v,20v.

        Bk_on give me 4.4v

        Login:
        1 sec : black screen
        2 sec : black screen
        3 sec : backlight on and polaroid message on
        4 sec : turn black screen and 2 of 10 times show me blue screen and the rest black screen

        Comments.
        The Tv remains on (blue light indicator)
        Solid red light on power board.
        I check by induction the top of 2 transformers and when the backlight is on show me value and after backlight is off the value going down.

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #5
          Re: Polaroid TDA-03211C No Video

          How about the pictures of your board?
          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

          • crdz66
            Badcaps Veteran
            • Nov 2012
            • 242
            • USA

            #6
            Re: Polaroid TDA-03211C No Video

            let me do that and post it.

            Comment

            • crdz66
              Badcaps Veteran
              • Nov 2012
              • 242
              • USA

              #7
              Re: Polaroid TDA-03211C No Video

              Here we are the pics.
              Attached Files

              Comment

              • bl@ckh3art
                New Member
                • Apr 2013
                • 4
                • united states

                #8
                Re: Polaroid TDA-03211C No Video

                I am having the same problem. I change the capacitor on the main power board and the lil red light on the corner keeps blinking. But blue light on the tv say on. The dvd player works fine. I put a dvd in there and it runs. But no sound or nothing. What should I do?

                Comment

                • bl@ckh3art
                  New Member
                  • Apr 2013
                  • 4
                  • united states

                  #9
                  Re: Polaroid TDA-03211C No Video

                  The red light on the man power board blinks every two seconds. is there something I should Do? No sound or or video. any information will help thank you

                  Comment

                  • bl@ckh3art
                    New Member
                    • Apr 2013
                    • 4
                    • united states

                    #10
                    Re: Polaroid TDA-03211C No Video

                    Do you think it could be the back light of the tv thats blown? or just the video board thats bad.

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #11
                      Re: Polaroid TDA-03211C No Video

                      A blinking light on that PSU does indicate backlight fault.
                      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

                      • bl@ckh3art
                        New Member
                        • Apr 2013
                        • 4
                        • united states

                        #12
                        Re: Polaroid TDA-03211C No Video

                        could it be caused by a cold solder that can cause that to blink. I was thinking about buying the whole thing on a website. But I wanted to see if i figure it out on my own. Sad part is the tv is kicking my butt. lol

                        Comment

                        • markatlantic
                          New Member
                          • May 2011
                          • 3

                          #13
                          Re: Polaroid TDA-03211C No Video

                          Question on Polaroid TDA-03211C

                          No pic, No sound, can anyone tell me the part no. for the D10 ? Also on the bottom of the board R16 is fried; looks like a 100 ohm value - is that correct. In advance, thank you for any provided

                          Comment

                          • markatlantic
                            New Member
                            • May 2011
                            • 3

                            #14
                            Re: Polaroid TDA-03211C No Video

                            Question on Polaroid TDA-03211C

                            No pic, No sound, can anyone tell me the part no. for the D10 ? Also on the bottom of the board R16 is fried; looks like a 100 ohm value - is that correct. In advance, thank you for any provided. Sorry - should have mentioned the board is IPOS 150 REV:1.8 2006.11.25

                            Comment

                            • MagicSmoke
                              Badcaps Veteran
                              • Feb 2011
                              • 275
                              • USA

                              #15
                              Re: Polaroid TDA-03211C No Video

                              You will have to change the 2 450v caps. I replaced every other cap on the one I have and it would not work until I changed the 2 450v ones.

                              crdz66 did you pull all of the caps under the heatsinks and check them?

                              markatlantic You will get more help by posting your problem in a new thread instead of jumping on someone else's thread.
                              Last edited by MagicSmoke; 01-31-2015, 04:55 PM.

                              Comment

                              • markatlantic
                                New Member
                                • May 2011
                                • 3

                                #16
                                Re: Polaroid TDA-03211C No Video

                                Thank you MagicSmoke. This is my first time posting to a blog and I thought I was suppose to put the problem under a heading that existed - if one was already started. Those caps look fine - but I will replace.

                                Comment

                                • MagicSmoke
                                  Badcaps Veteran
                                  • Feb 2011
                                  • 275
                                  • USA

                                  #17
                                  Re: Polaroid TDA-03211C No Video

                                  Originally posted by markatlantic
                                  Those caps look fine - but I will replace.
                                  Mine looked fine also, no leaking or bulged tops. But pulled them to test, one 22uf 450v cap read 1.8uf the other would not read. both were bad.

                                  Comment

                                  • budm
                                    Badcaps Legend
                                    • Feb 2010
                                    • 40746
                                    • USA

                                    #18
                                    Re: Polaroid TDA-03211C No Video

                                    Bad caps can look normal.
                                    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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