Magnavox 47"

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  • Badboy666
    New Member
    • Dec 2012
    • 8
    • USA

    #1

    Magnavox 47"

    NO Picture or sound. Checked all capacitors they all look good.
    I was watching tv and heard a firecracker sound and tv screen went
    blue in color. Need help. Model # 47MF437B LCD TV
    TV power comes on but screen stays blueish color.
    Attached Files
    Last edited by Badboy666; 12-17-2012, 10:32 PM.
  • Phaihn
    Badcaps Veteran
    • Jan 2009
    • 842
    • Canada

    #2
    Re: Magnavox 47"

    can you take pictures of some of the other parts of the set?

    also whats the model number of the set so people know what tv you have and can help easier.
    My Computer.
    AMD APU A4-3300 2.5ghz 1mb cache
    Motherboard GigaByte GA-A75M-S2V
    Kingston HyperX Blue DDR3 8GB (2x4GB)

    SB Audigy 2 ZS [B800] Sound Card
    500GB WD Caviar® Blue™
    1 Terabyte WD Caviar® Black™
    2 Terabyte WD Caviar® Black™

    Comment

    • Badboy666
      New Member
      • Dec 2012
      • 8
      • USA

      #3
      Re: Magnavox 47"

      Magnavox 47MF437B LCD TV

      Comment

      • Phaihn
        Badcaps Veteran
        • Jan 2009
        • 842
        • Canada

        #4
        Re: Magnavox 47"

        Originally posted by Badboy666
        Magnavox 47MF437B LCD TV
        you should take more pictures thats just the power supply maybe the issue is else where.
        My Computer.
        AMD APU A4-3300 2.5ghz 1mb cache
        Motherboard GigaByte GA-A75M-S2V
        Kingston HyperX Blue DDR3 8GB (2x4GB)

        SB Audigy 2 ZS [B800] Sound Card
        500GB WD Caviar® Blue™
        1 Terabyte WD Caviar® Black™
        2 Terabyte WD Caviar® Black™

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #5
          Re: Magnavox 47"

          So the screen does stay lit up? Can you bring up the setup menu or it just have blue screen?
          And Yes, we need to see the rest of the boards and how they are connected together.
          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

          • Badboy666
            New Member
            • Dec 2012
            • 8
            • USA

            #6
            Re: Magnavox 47"

            TV turns on but I only get a blue screen. I took off everything on back and checked out all three boards and all caps look perfect, no burn marks on boards, no melt downs.
            I will take some more pictures and get back. thanks for your time.

            Comment

            • gilly1984
              Badcaps Veteran
              • Jun 2012
              • 751
              • UK

              #7
              Re: Magnavox 47"

              Check the fuse on the tcon.
              Do NOT touch heatsinks when testing for voltages as they may be LIVE!

              Comment

              • Badboy666
                New Member
                • Dec 2012
                • 8
                • USA

                #8
                Re: Magnavox 47"

                That little fuse looks ok...it's all white inside and not broken.

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA

                  #9
                  Re: Magnavox 47"

                  What DC voltage do you get at bothe ends of the fuse? Can you post the pictures of the T-CON 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

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