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Samsung UN55D6050 Audio but Black Screen

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    #1

    Samsung UN55D6050 Audio but Black Screen

    Hello,

    I was given a non-working Samsung UN55D6050TFXZC that I am interested in repairing.

    The TV turns on, and there is sound. However the screen is black, and as far as I can tell the backlight is on. I've tried pressing the menu button to see if it was just an input problem, but the menu does not show up either.

    I read the "Basic_LCD_TV_trouble_shooting_guide_by_Bud_Martin.pdf" from this website, and from that I believe it is either the main logic board or the T-CON board.

    I looked up replacements, and they seem to be out of stock or highly priced. So before I purchased any replacements I wanted the best guess of which I should replace.

    I've looked over the boards for any blown fuses or busted capacitors, but everything looked fine to me. I can post pictures later tonight once I get home from work.
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    #2
    Re: Samsung UN55D6050 Audio but Black Screen

    Do you have a digital multimeter available? Any other equipment, like an oscilloscope, might also be worth mentioning.
    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

      #3
      Re: Samsung UN55D6050 Audio but Black Screen

      I have a multimeter, no oscilloscope, other then a soldering iron I can't think of any other equipment.

      Comment

        #4
        Re: Samsung UN55D6050 Audio but Black Screen

        Do you have a camera to take photos of the boards in the set?
        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

          #5
          Re: Samsung UN55D6050 Audio but Black Screen

          I have just arrived home, and I will upload the pictures now.

          Also I talked to the guy I got the TV from, and he said he had this TV repaired for the same issue back when it was under warranty.

          The work order for it says:

          "Screen would go black, sound ok, then screen will come back intermittently"

          It then says the part that was replaced was a BN44-00424A SMPS, is it safe to assume that since it's an identical problem I should be able to buy the same board and swap it out?
          Attached Files

          Comment

            #6
            Re: Samsung UN55D6050 Audio but Black Screen

            Every time I hear about D series, I'm thinking about bad panel.
            I wouldn't spend a dollar on it yet.
            I would make sure, that all the voltages are there first and everything works as it should.

            Comment

              #7
              Re: Samsung UN55D6050 Audio but Black Screen

              Hi

              Do you still have this TV with you, I was working on a wall lit TV and it would be helpful if you can spare it. let me know your thoughts here is my email venkir@hotmail.com

              Thanks
              Chaman.


              Originally posted by hooger View Post
              I have just arrived home, and I will upload the pictures now.

              Also I talked to the guy I got the TV from, and he said he had this TV repaired for the same issue back when it was under warranty.

              The work order for it says:

              "Screen would go black, sound ok, then screen will come back intermittently"

              It then says the part that was replaced was a BN44-00424A SMPS, is it safe to assume that since it's an identical problem I should be able to buy the same board and swap it out?

              Comment

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