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    Sceptre 50" Blackscreen

    Hi All'
    I'm new to the site and not very good at electronics. I have this 50" Sceptre Model E55 .I have no picture but have audio . I want to confirm the audio as I was not there when the TV was taken out of service.(My son said there was Audio)I did try a flashlight test and found screen black with no Menu image. I have Red power light that turns blue when turned on .I removed the back cover and can't see anything Burnt or puffy Caps.Well that's all I have for now. Hoping someone can help steer me to a fix.I bought a new TV so I have time to tinker with this.Here's some Pics to get started.
    Thanks
    Attached Files
    Last edited by Kendog170; 11-27-2019, 11:42 AM. Reason: Wanted to add Model number.

    #2
    Re: Sceptre 50" Blackscreen

    Seems like bad Backlights at first reading. Measure the voltages wrt chassis GND. If the Backlights are bad you would get a +ve reading on the +ve LED wire and 0V on the -ve wire.

    Comment


      #3
      Re: Sceptre 50" Blackscreen

      Check if you have about 12 volts on each side of the t-con fuse, multimeter if you have one, set at 20 vdc, black probe on metal chassis back red probe on each side, as always BE VERY CAREFUL working aroud powerboard, there are DEADLY voltages on the HOT side, this test is on tcon of course not powerboard.
      Last edited by nomoresonys; 11-27-2019, 11:18 AM.

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        #4
        Re: Sceptre 50" Blackscreen

        I will check the T-con. I have a multi-meter and yes I will be careful. As for wrt I haven't a clue. lol I will look for Threads and stickys for more knowledge info on boards and Abbreviations.
        Thanks

        Comment


          #5
          Re: Sceptre 50" Blackscreen

          WRT = With Reference To.
          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


            #6
            Re: Sceptre 50" Blackscreen

            Just means put black probe on metal chassis back of tv.

            Comment


              #7
              Re: Sceptre 50" Model E55 Blackscreen with Audio

              Originally posted by Kendog170 View Post
              Hi All'
              I'm new to the site and not very good at electronics. I have this 50" Sceptre Model E55 .I have no picture but have audio . I want to confirm the audio as I was not there when the TV was taken out of service.(My son said there was Audio)I did try a flashlight test and found screen black with no Menu image. I have Red power light that turns blue when turned on .I removed the back cover and can't see anything Burnt or puffy Caps.Well that's all I have for now. Hoping someone can help steer me to a fix.I bought a new TV so I have time to tinker with this.Here's some Pics to get started.
              Thanks
              So do you get the backlights or not?
              Your TV has the FRC board (the board between T-CON board and the Main board).
              I need better and clearer pictures of the boards, the pictures are not clear enough for me to read anything on the boards.
              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


                #8
                Re: Sceptre 50" Blackscreen

                Well the wife had me move it for Thanksgiving. She didn't like me using the dining room table for a work bench. I'll probably hold off until after the Holidays. I will have my son take better pictures when I get back to this as my outer lens is smashed on my phone and doesn't focus well. Also no back lights.

                Comment

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