32" sceptre x322bv w/ psu mp116a

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  • john98103
    Member
    • May 2011
    • 20
    • USA
    #1

    32" sceptre x322bv w/ psu mp116a

    32" sceptre x322bv w/ psu mp116a

    My tv turns on and displays the brand name momentarily and then fades out and disappears; back lights stay on, on/off indicator light stays on and remains blue (this light is orange on standby). I have checked the voltages on the power supply; All the 24V pins are 23.3V. the 12V pin is 11.9V.

    Connector 2 has some voltages that deviate from expectation. in the second attached picture Con2 is at the far left (all stranded pink). I will list pin voltages left to right: 0, 0, 5, open, 4.5, 5, 5, 5, 0, open, open, open, 11.9. counting from left to right, pin 5 SHOULD be 5V and pin 9 should be 5v.

    Please advise as to what may be the problem.
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    • john98103
      Member
      • May 2011
      • 20
      • USA
      #2
      Re: 32" sceptre x322bv w/ psu mp116a

      looking on the back of the power supply I discovered what I'm calling pin 9 is actually labeled a ground not 5V; so now the only thing that seems to be wrong is pin 5, which is labeled PSON and has a voltage of 4.5. I've read that PSON is either 3.5V or 5V; I wonder if 4.5V is an issue.

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: 32" sceptre x322bv w/ psu mp116a

          " All the 24V pins are 23.3V. the 12V pin is 11.9V" PS_ON is fine otherwise you will not have the 24v and the 12v.
          You need to check and see if the voltage to the T-CON board is present.
          Read my basic troubleshooting guide to get basic idea how LCD TV function.
          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

            • amxman
              Member
              • Nov 2013
              • 21
              • USA
              #4
              Re: 32" sceptre x322bv w/ psu mp116a

              I too have a sceptre 32" tv that is not working. I'm unable to start a new thread yet so I'll just hang here for a few post's.
              My TV is X320BV-HD. The psu is also a Megmeet MP116 RVE:1.4 which makes me believe that my psu is a newer version than the one picture you posted, looks like yours is a 1.0.

              My TV powers up (blue light)to the startup screen and then clicks off, but when it does so the standby light is lit(red) unlike yours. After it shuts off a few moments later I hear another click... almost like a reset?

              I found two CAP's that show failure(bulge), at the row of 4 in a line. I'm planning on replacing all four in that line. They are close to that heat sink.

              Any thoughts? Again I do plan on starting a new thread but for some reason I'm unable to do so right now.

                Comment

                • amxman
                  Member
                  • Nov 2013
                  • 21
                  • USA
                  #5
                  Re: 32" sceptre x322bv w/ psu mp116a

                  Here is my thread, I think my problem is just a bit different.

                  https://www.badcaps.net/forum/showthread.php?t=33144

                    Comment

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