lg 42PX4DV-EA switches on then off

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  • quiggy
    Senior Member
    • Aug 2014
    • 136
    • United Kingdom
    #1

    lg 42PX4DV-EA switches on then off

    Hey guys I've found myself a plasma and so far I'm not a fan!

    This one clicks on the light goes from red to amber to green and then clicks off and back to red. Caps all appear ok from a visual inspection. Also once its put itself back in standby if I attempt to turn it back on again the light will turn amber but theres no clicks from the power supply and the light doesn't go green I have to disconnect power for a short peroid before the supply will click again.

    I have no clue other than some thing else on the power supply is bad, any ideas?

    Thanks
    Tags: None
    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12129
      • U.S.
      #2
      Re: lg 42PX4DV-EA switches on then off

      havent liked plasmas since I tore 1 apart, panny, with 2 loud fans and a whole lot of parts to deal with, no tab bond issues tho.

        Comment

        • quiggy
          Senior Member
          • Aug 2014
          • 136
          • United Kingdom
          #3
          Re: lg 42PX4DV-EA switches on then off

          I think this is the second one ive taken a peek inside of, theres just so much more to them and they weigh a tonne. Make no wonder they're discontinued lol

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12129
              • U.S.
              #4
              Re: lg 42PX4DV-EA switches on then off

              Originally posted by quiggy
              Hey guys I've found myself a plasma and so far I'm not a fan!

              This one clicks on the light goes from red to amber to green and then clicks off and back to red. Caps all appear ok from a visual inspection. Also once its put itself back in standby if I attempt to turn it back on again the light will turn amber but theres no clicks from the power supply and the light doesn't go green I have to disconnect power for a short peroid before the supply will click again.

              I have no clue other than some thing else on the power supply is bad, any ideas?

              Thanks
              could still be a cap, they dont have to bulge to be bad.

                Comment

                • nomoresonys
                  Badcaps Legend
                  • Jan 2013
                  • 12129
                  • U.S.
                  #5
                  Re: lg 42PX4DV-EA switches on then off

                  try to grab a manual if you want to troubleshoot, should be one in the stickie posts at the top of the list.

                    Comment

                    • quiggy
                      Senior Member
                      • Aug 2014
                      • 136
                      • United Kingdom
                      #6
                      Re: lg 42PX4DV-EA switches on then off

                      Yeah ill take a peek, just didny want to be ripping random caps out incase anyone else knew what it was before hand

                        Comment

                        • nomoresonys
                          Badcaps Legend
                          • Jan 2013
                          • 12129
                          • U.S.
                          #7
                          Re: lg 42PX4DV-EA switches on then off

                          Originally posted by quiggy
                          Yeah ill take a peek, just didny want to be ripping random caps out incase anyone else knew what it was before hand
                          good idea.

                            Comment

                            • quiggy
                              Senior Member
                              • Aug 2014
                              • 136
                              • United Kingdom
                              #8
                              Re: lg 42PX4DV-EA switches on then off

                              Found a service manual but can't view it.on my phone so need to wait until I get home

                                Comment

                                • quiggy
                                  Senior Member
                                  • Aug 2014
                                  • 136
                                  • United Kingdom
                                  #9
                                  Re: lg 42PX4DV-EA switches on then off

                                  I think I'm making progress, with the zsus board disconnected the power supply doesn't click back off it stays on

                                    Comment

                                    • nomoresonys
                                      Badcaps Legend
                                      • Jan 2013
                                      • 12129
                                      • U.S.
                                      #10
                                      Re: lg 42PX4DV-EA switches on then off

                                      can you post some good clear pics. of the boards and maybe one of how their all connected?

                                        Comment

                                        • ReeceyBurger123
                                          Never Give Up !
                                          • May 2014
                                          • 7325
                                          • Britain
                                          #11
                                          Re: lg 42PX4DV-EA switches on then off

                                          Probably zsus or the buffers at fault then, could you take pics of the boards please.
                                          Last edited by ReeceyBurger123; 12-24-2014, 03:43 PM.
                                          Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                                          https://www.facebook.com/Telford-Tel...7894576335359/

                                            Comment

                                            • quiggy
                                              Senior Member
                                              • Aug 2014
                                              • 136
                                              • United Kingdom
                                              #12
                                              Re: lg 42PX4DV-EA switches on then off

                                              Yeah I'll get some pics sorted out as soon as I can

                                                Comment

                                                • quiggy
                                                  Senior Member
                                                  • Aug 2014
                                                  • 136
                                                  • United Kingdom
                                                  #13
                                                  Re: lg 42PX4DV-EA switches on then off

                                                  I can take more/better pics if needed just let me know
                                                  Attached Files

                                                    Comment

                                                    • quiggy
                                                      Senior Member
                                                      • Aug 2014
                                                      • 136
                                                      • United Kingdom
                                                      #14
                                                      Re: lg 42PX4DV-EA switches on then off

                                                      Also the fuse near the capacitors on the zboard, when thats taken out the psu remains on as well.

                                                        Comment

                                                        • quiggy
                                                          Senior Member
                                                          • Aug 2014
                                                          • 136
                                                          • United Kingdom
                                                          #15
                                                          Re: lg 42PX4DV-EA switches on then off

                                                          Are the pictures sufficient ?

                                                            Comment

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