LG 50PK350 Clicking

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  • Easky15
    Badcaps Veteran
    • Sep 2013
    • 285
    • Ireland
    #1

    LG 50PK350 Clicking

    Hi, I have this 50 inch LG plasma TV and when i try to turn it on it clicks then then the screen flashes quickly on then off again, It repeats this a second time then just clicks a few times. Can anyone suggest how I troubleshoot this set? Here is a video showing the fault and also a few pics of the back of the TV,

    http://tinypic.com/r/2u5rxxt/8



    https://lh6.googleusercontent.com/-z...217_225601.jpg

    https://lh5.googleusercontent.com/-s...217_225545.jpg
    Tags: None
    • sordids999
      Badcaps Legend
      • May 2013
      • 2161
      • uk
      #2
      Re: LG 50PK350 Clicking

      have u checked any voltages ? VS/VA on the power supply readings ?

        Comment

        • Easky15
          Badcaps Veteran
          • Sep 2013
          • 285
          • Ireland
          #3
          Re: LG 50PK350 Clicking

          VA reaches 60 then quickly powers off, VS reaches 208v

            Comment

            • sordids999
              Badcaps Legend
              • May 2013
              • 2161
              • uk
              #4
              Re: LG 50PK350 Clicking

              so VS is steady but VA drops ?

                Comment

                • Easky15
                  Badcaps Veteran
                  • Sep 2013
                  • 285
                  • Ireland
                  #5
                  Re: LG 50PK350 Clicking

                  No they both drop when the set clicks off.

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: LG 50PK350 Clicking

                      Checked the common 22 ohm resistors for possible signs of failure? (They usually fail open)
                      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

                        • Easky15
                          Badcaps Veteran
                          • Sep 2013
                          • 285
                          • Ireland
                          #7
                          Re: LG 50PK350 Clicking

                          Where is the 22 ohm resistor? Sorry I'm not the best at fixing these, I just come on here and ask the experts then do what they say.. :-)

                            Comment

                            • tom66
                              EVs Rule
                              • Apr 2011
                              • 32560
                              • UK
                              #8
                              Re: LG 50PK350 Clicking

                              Power board, two white devices marked "5W22RJ" or something similar...
                              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

                                • Easky15
                                  Badcaps Veteran
                                  • Sep 2013
                                  • 285
                                  • Ireland
                                  #9
                                  Re: LG 50PK350 Clicking

                                  ok one is showing as 21.7 ohms and the other isn't showing anything so i guess it is blown. :-)

                                    Comment

                                    • sordids999
                                      Badcaps Legend
                                      • May 2013
                                      • 2161
                                      • uk
                                      #10
                                      Re: LG 50PK350 Clicking

                                      i would change both anyway

                                        Comment

                                        • Easky15
                                          Badcaps Veteran
                                          • Sep 2013
                                          • 285
                                          • Ireland
                                          #11
                                          Re: LG 50PK350 Clicking

                                          Just found a board upstairs with similar looking components, Can you look and see if they are the same, I think they are but wanna be sure.

                                          https://lh6.googleusercontent.com/-d...218_212148.jpg

                                            Comment

                                            • tom66
                                              EVs Rule
                                              • Apr 2011
                                              • 32560
                                              • UK
                                              #12
                                              Re: LG 50PK350 Clicking

                                              It looks OK. Test a few times - some resistors aren't suitable for the application they're used in and will fail after a few tens of power on/off cycles. If that's the case you'll have to order a suitable replacement.
                                              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

                                                • Easky15
                                                  Badcaps Veteran
                                                  • Sep 2013
                                                  • 285
                                                  • Ireland
                                                  #13
                                                  Re: LG 50PK350 Clicking

                                                  Fixed...... Thanks again... ;-)

                                                    Comment

                                                    • RJARRRPCGP
                                                      Badcaps Legend
                                                      • Jul 2004
                                                      • 6304
                                                      • USA
                                                      #14
                                                      Re: LG 50PK350 Clicking

                                                      Please attach the files, the host you used is prone to disabling images.
                                                      ASRock B550 PG Velocita

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                                                        Comment

                                                        • Easky15
                                                          Badcaps Veteran
                                                          • Sep 2013
                                                          • 285
                                                          • Ireland
                                                          #15
                                                          Re: LG 50PK350 Clicking

                                                          You mean google or tinypic?? I use google cause i have my phone set to auto backup images to gogle drive so its alot easier and faster to just go there then copy link.. ;-)

                                                            Comment

                                                            • wolf1976
                                                              Senior Member
                                                              • Oct 2023
                                                              • 113
                                                              • Ελλάδα
                                                              #16
                                                              hi i have the same tv and there is the same problem clicking
                                                              the one of two resistors is open i dont have change it yet to see if the problem fix
                                                              but from where can cause this problem from pure capacitors maby ?
                                                              does anyone know ?

                                                                Comment

                                                                • wolf1976
                                                                  Senior Member
                                                                  • Oct 2023
                                                                  • 113
                                                                  • Ελλάδα
                                                                  #17
                                                                  in my case i change the faulty resistor and the problem clicking continues
                                                                  the two resistors are ok now

                                                                    Comment

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