LG LM290WW2 No Display MPS6142 Blown

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  • m4a2t0t
    Badcaps Veteran
    • Mar 2013
    • 276
    • USA

    #1

    LG LM290WW2 No Display MPS6142 Blown

    Trying to find a compatible IC to replace the MPS6142 that is blown on the board.

    34UM60/29UM60/29UM59A EAX67451201 (1.1)

    If anyone has a datasheet for the board or the IC that would be helpful too. I'm not finding anything

    Thanks.
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: LG LM290WW2 No Display MPS6142 Blown

    It looks like MPS164?, please verify.
    MPS1642 has less pins.
    Attached Files
    Last edited by budm; 11-09-2019, 05:49 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

    • m4a2t0t
      Badcaps Veteran
      • Mar 2013
      • 276
      • USA

      #3
      Re: LG LM290WW2 No Display MPS6142 Blown

      Woops it is mps1642 but mine has 14 pins per side

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: LG LM290WW2 No Display MPS6142 Blown

        I do not think your IC is MPS1642.
        Are you sure the last digit is '2'?
        How about the next line, MP33??
        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

        • m4a2t0t
          Badcaps Veteran
          • Mar 2013
          • 276
          • USA

          #5
          Re: LG LM290WW2 No Display MPS6142 Blown

          what about
          https://pdf1.alldatasheet.com/datash...S/MP3378E.html

          The second number is MP33, some number, 8, and im pretty sure the last is an E. Unless there are more numbers under the scorched areas.The missing number looks like a 4 in the negative image I added to this post.
          Attached Files

          Comment

          • m4a2t0t
            Badcaps Veteran
            • Mar 2013
            • 276
            • USA

            #6
            Re: LG LM290WW2 No Display MPS6142 Blown

            the MP3378E worked

            Comment

            • Azagalord
              New Member
              • Jul 2020
              • 1
              • Ecuador

              #7
              Re: LG LM290WW2 No Display MPS6142 Blown

              Can you help, with some information pls, the MP3378E worked in your monitor that was the only one part that you had to replace?

              Comment

              • dick_barton
                Badcaps Legend
                • Aug 2015
                • 6642
                • Wales

                #8
                Re: LG LM290WW2 No Display MPS6142 Blown

                Originally posted by m4a2t0t
                what about
                https://pdf1.alldatasheet.com/datash...S/MP3378E.html

                The second number is MP33, some number, 8, and im pretty sure the last is an E. Unless there are more numbers under the scorched areas.The missing number looks like a 4 in the negative image I added to this post.
                I believe that these IC's have a design flaw where they burn up in exactly the same place as in the picture above. Worse still is when they burn the tracks away and carbonise the circuit board.
                Attached Files
                Last edited by dick_barton; 07-21-2020, 08:57 AM.
                Willing to help but I'm no expert.

                Comment

                • jmillado
                  New Member
                  • Sep 2013
                  • 7
                  • USA

                  #9
                  Re: LG LM290WW2 No Display MPS6142 Blown

                  Originally posted by m4a2t0t
                  what about
                  https://pdf1.alldatasheet.com/datash...S/MP3378E.html

                  The second number is MP33, some number, 8, and im pretty sure the last is an E. Unless there are more numbers under the scorched areas.The missing number looks like a 4 in the negative image I added to this post.
                  The one with "8E" is not compatible with the burned IC parts. Because the "8E" has 12 pins each side, while the burned IC has 14 pins each side. I have the same problem, identical with the model and burned IC. But mine shows the 3rd number which is "7". So it will be MPS337x "where X irepresents "8" or other number or maybe none.

                  Comment

                  • jmillado
                    New Member
                    • Sep 2013
                    • 7
                    • USA

                    #10
                    Re: LG LM290WW2 No Display MPS6142 Blown

                    Originally posted by jmillado
                    The one with "8E" is not compatible with the burned IC parts. Because the "8E" has 12 pins each side, while the burned IC has 14 pins each side. I have the same problem, identical with the model and burned IC. But mine shows the 3rd number which is "7". So it will be MP337x "where X irepresents "8" or other number or maybe none.
                    Should be MP337x

                    Comment

                    • jmillado
                      New Member
                      • Sep 2013
                      • 7
                      • USA

                      #11
                      Re: LG LM290WW2 No Display MPS6142 Blown

                      Originally posted by jmillado
                      Should be MP337x
                      My Bad..i don't know how to delete my previous posts. But, I confirmed that the above claim to be COMPATIBLE (MP3378E). My apology.

                      Comment

                      • jimmyfu
                        New Member
                        • Feb 2017
                        • 1
                        • United States

                        #12
                        Re: LG LM290WW2 No Display MPS6142 Blown

                        Originally posted by jmillado
                        The one with "8E" is not compatible with the burned IC parts. Because the "8E" has 12 pins each side, while the burned IC has 14 pins each side. I have the same problem, identical with the model and burned IC. But mine shows the 3rd number which is "7". So it will be MPS337x "where X irepresents "8" or other number or maybe none.
                        Have you been able to find the correct part? This just happened to me and a bit bummed

                        Comment

                        • dick_barton
                          Badcaps Legend
                          • Aug 2015
                          • 6642
                          • Wales

                          #13
                          Re: LG LM290WW2 No Display MPS6142 Blown

                          My IC which was a 28 pin IC was an MP3378E and I have the spares in front of me.
                          Willing to help but I'm no expert.

                          Comment

                          • pat0te
                            New Member
                            • Oct 2022
                            • 6
                            • spain

                            #14
                            Re: LG LM290WW2 No Display MPS6142 Blown

                            Hello guys, here another dealing with a blown IC501 (mps3378e) in a LG TV (49lh5100).
                            I'm attaching a pic of my main board.
                            It seems a typical failure of this chip.

                            If any had replace it, please comment experience. I will try to replace it without replacing nothing more to see if works.
                            Attached Files

                            Comment

                            • TecnicaNTT
                              Senior Member
                              • Feb 2015
                              • 65
                              • Portugal

                              #15
                              Originally posted by m4a2t0t
                              Re: LG LM290WW2 No Display MPS6142 Blown

                              the MP3378E worked
                              what was the symptom ? my screen has led light but no image. was your the same ?

                              Comment

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