lg 42px5d wierd screen problem

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  • steve2k34
    Member
    • Jan 2013
    • 36
    • uk

    #1

    lg 42px5d wierd screen problem

    i have this lg lg 42px5d and it has some wierd screen problem its al black and a slight picture in the corner but tv all works fine with sound if i can navigate in the menu to the ism menu then click white wash the screen all lights up but if you turn it of it slowly fades back to black has anyone had or know what this problem could be

    its as if the screen is very slow at firing
    Last edited by steve2k34; 02-07-2013, 10:38 AM.
  • steve2k34
    Member
    • Jan 2013
    • 36
    • uk

    #2
    Re: lg 42px5d wierd screen problem

    found a bad fuse on z sustain will let you's no on my findings its this fuse thats gone e.t4ah250vp

    is this the right fuse to get before i buy it http://www.amazon.co.uk/gp/product/B..._i=e.t4ah250vp
    Last edited by steve2k34; 02-07-2013, 12:41 PM.

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #3
      Re: lg 42px5d wierd screen problem

      I had one of these sets before when it was simply dust on the Y-sustain causing the issue.
      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

      • steve2k34
        Member
        • Jan 2013
        • 36
        • uk

        #4
        Re: lg 42px5d wierd screen problem

        ive cleaned this set up as it was really thick with dust, had to change caps on power board as they were bulging this fuse is blown so hopefully when i get a new fuse it will work ok do you think maplins will stock these fuses

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: lg 42px5d wierd screen problem

          Yes, maplin will stock them, expect the new one to fail though.
          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

          • steve2k34
            Member
            • Jan 2013
            • 36
            • uk

            #6
            Re: lg 42px5d wierd screen problem

            Well fingers crossed it don't but if it does what ya recon the fault could be

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK

              #7
              Re: lg 42px5d wierd screen problem

              The IPM.
              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

              • steve2k34
                Member
                • Jan 2013
                • 36
                • uk

                #8
                Re: lg 42px5d wierd screen problem

                Right I've put a new fuse in now the tv don't turn on, if I take it out it does!! The fuse does not blow its still good any other ideas what I could do to test

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #9
                  Re: lg 42px5d wierd screen problem

                  It means the IPM is shorted on the Z-side, so you'll need to replace it.
                  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

                  • steve2k34
                    Member
                    • Jan 2013
                    • 36
                    • uk

                    #10
                    Re: lg 42px5d wierd screen problem

                    Does that mean a whole board replace or can I get the part and is it easy to replace ?

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #11
                      Re: lg 42px5d wierd screen problem

                      It is not easy to replace but the part is only £25 or so, whole board is typically £120 unless you can find a cracked screen TV to harvest one from. I saw a 42PX5D on my local gumtree with cracked screen a few weeks ago.
                      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

                      • steve2k34
                        Member
                        • Jan 2013
                        • 36
                        • uk

                        #12
                        Re: lg 42px5d wierd screen problem

                        ill have a look around if not ill get rid of it but what part is it that needs replacing and ill look into whether id be capable of soldering it

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #13
                          Re: lg 42px5d wierd screen problem

                          The IPM.
                          https://www.youtube.com/watch?v=Y8MNQYXw8E0
                          Only necessary to swap the Z IPM.
                          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

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