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    #1

    Onn le32lcd0802id

    So after the last TV I fixed, I've got the bug a bit and bought another broken TV for a few quid off ebay. The symptoms were that the picture went off, then the sound, and now it's totally dead.

    I've had the back off and the problem is pretty obvious from the pictures. You can see the burning on the cable between the power board and the inverter.

    In addition, there is continuity between the pins circled in red between themselves, and also the ones circled in green.

    Would I be right in thinking these should not be shorted and that's the cause of the burning? So a new inverter board and cable would be the solution?

    thanks



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    #2
    Re: Onn le32lcd0802id

    They are connected in parallel to handle the current required by the inverter circuit. You also bad cap C1 (c2 looks like its on its way also) the bottom seal is coming off, you should replace those caps on the inverter board, and also inspect the caps in the powwer supply board or replace them as a set. The burnt is due to poor connector high contact resistance. You should also replace the headers otherwise you have to clean the pins really well.
    Last edited by budm; 06-02-2014, 01:37 PM.
    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

      #3
      Re: Onn le32lcd0802id

      Inverter part number is KLS-EE37TKH16

      Comment

        #4
        Re: Onn le32lcd0802id

        So you think the problem is just capacitors? I can obviously change them all but I'd be interested how they could cause that fault.

        Also, is there a place to buy replacement cables, or a way to make them up yourself?

        Thanks

        Comment

          #5
          Re: Onn le32lcd0802id

          Originally posted by fruitbat04 View Post
          So you think the problem is just capacitors? I can obviously change them all but I'd be interested how they could cause that fault.
          Lkely their failure upset the operation of the circuit and caused it to draw too much current, burning the wires.
          "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
          -David VanHorn

          Comment

            #6
            Re: Onn le32lcd0802id

            Cheers all. Got the parts in yesterday, basically new pin header for the PCB, pins and housing for the cable and a couple of capacitors.....

            Comment

              #7
              Re: Onn le32lcd0802id

              Bah, not completely solved.

              Initially everything was fine and I could turn it off, but now hitting power off on the remote, TV or letting it go to auto shut down just hangs on "Turning off, please wait".

              Any ideas how to troubleshoot?

              Comment

                #8
                Re: Onn le32lcd0802id

                After leaving it unplugged for a few hours, it doesn't seem to be doing that anymore. Am just running it in for 24 hours before moving it on.

                Comment

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