Samsung LT27B300 no sound

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  • Kairi
    Senior Member
    • Nov 2013
    • 51
    • United Kingdom
    #1

    Samsung LT27B300 no sound

    Hi,

    I have acquired a Samsung LT27B300 LED TV which I was informed that the sound does not work. The picture works fine.

    I tested it and found that the sound is indeed faulty as the speaker would give out a quiet pop or crackle every so often when sound is supposed to be played. I dismantled the TV and looked at the AV board paying p[articular attention to the speaker connector and all seemed OK and there isn't anything obviously wrong.

    This TV doesn't have a headphone jack or indeed any audio out so I cannot test an alternative output.

    I have attached some pictures of the AV board and hopefully someone can use to guide me diagnose and fix the audio issue. Thanks.


    upload foto

    jpg images

    imagehost

    images
    Last edited by Kairi; 07-19-2015, 05:34 PM.
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Samsung LT27B300 no sound

      We need higher res pictures of the main board so we can zoom in on the parts on the 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

        • Kairi
          Senior Member
          • Nov 2013
          • 51
          • United Kingdom
          #3
          Re: Samsung LT27B300 no sound

          Sorry, I didn't know the image host resized them. Here are the original pictures. Please click on "full size" at the bottom.

          Front
          http://postimg.org/image/isjxim2sn/full/

          Back
          http://postimg.org/image/mlb6sxm2l/full/

            Comment

            • Kairi
              Senior Member
              • Nov 2013
              • 51
              • United Kingdom
              #4
              Re: Samsung LT27B300 no sound

              Any ideas at all what the problem could lie and where to start checking?

                Comment

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