Washed out negative image

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  • pc55
    Member
    • Aug 2013
    • 28
    • USA

    #1

    Washed out negative image

    I have a Samsung 32" LCD TV, model LN32A330J1D, that has a washed out image that almost looks like the a negative of the picture. I found one fix for this system, which was to replace one of the IC chips on the Tcon board- well, I messed that up! Drag soldering in close space is not something I have mastered yet;-)

    Plan B- found a replacement really inexpensive ($23)- so replaced that and, while I had everything out, replaced the caps on the Power Board as well. Same issue- so I tortured and ruined the first Tcon board for nothing:-(

    I looked at the Mainboard more closely, and see what may be a damaged or burned component- but I am not sure what it is (yes, I am very new to this). It looks like, next to both of them, the marking on the board begins with the letter "L." From my Google search, that seems to indicate an Inductor, coil or bead. However, I cannot find anything that matches this- the only numbers are printed on top of each: 150 over 827

    They are both surface mounted with 4 connectors each, two to a side.

    Any thoughts on these are? Does the one look in bad shape? Pictures attached.
  • pc55
    Member
    • Aug 2013
    • 28
    • USA

    #2
    Re: Washed out negative image

    Site is not uploading the higher res picture, so here is a lower res one:
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #3
      Re: Washed out negative image

      Those components look OK. Can we have a picture of your t-con? Do not rule out the chance you got a defective t-con.
      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

      • pc55
        Member
        • Aug 2013
        • 28
        • USA

        #4
        Re: Washed out negative image

        Thanks, Tom66- will post pic of the tcon board later- it is one of those designs where you have to remove a few things to get to it.

        Regarding those components I posted the picture of earlier- for my information- what are they?

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Washed out negative image

          They look like inductors. Most likely for the Class D audio output (to the loudspeakers.)
          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

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