p50hdtv10a Plasma snow and lines no sound

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  • jack1
    Member
    • Mar 2013
    • 30
    • usa

    #1

    p50hdtv10a Plasma snow and lines no sound

    i have replaced both buffer boards.still have snowy picture and no sound .logic board has 5 ligts on it and only the single light and the top and bottom lights in the row of 4. any idea
    Last edited by jack1; 08-05-2013, 05:05 PM. Reason: misspelled
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: p50hdtv10a Plasma snow and lines no sound

    Can you show us a picture of the fault?
    The logic board LEDs are correct. They indicate temperature of plasma panel in binary. All lit is bad, otherwise they are OK.
    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

    • jack1
      Member
      • Mar 2013
      • 30
      • usa

      #3
      Re: p50hdtv10a Plasma snow and lines no sound

      i had to find my camera. when i turned tv on the problem changed. i have a vertical line 6 to 8 inches wide. also 10 blinks on power light when shut down. thanks
      Attached Files

      Comment

      • johnboy1313
        Badcaps Legend
        • Nov 2012
        • 1959
        • USA

        #4
        Re: p50hdtv10a Plasma snow and lines no sound

        Y sustain board. That bluish stripe with the white stripes in it is your no signal box.

        Comment

        • jack1
          Member
          • Mar 2013
          • 30
          • usa

          #5
          Re: p50hdtv10a Plasma snow and lines no sound

          my mistake cable from new board not plugged in all the way. now i have great picture but no input . i tried pushing button on the side but nothing happens . also the menu button does not work. i dont have remote

          Comment

          • johnboy1313
            Badcaps Legend
            • Nov 2012
            • 1959
            • USA

            #6
            Re: p50hdtv10a Plasma snow and lines no sound

            I would suspect main board then.

            Comment

            • capkid
              Badcaps Legend
              • Oct 2010
              • 1339
              • United States

              #7
              Re: p50hdtv10a Plasma snow and lines no sound

              Check your main board and keyboard connectors to make sure everything is properly seated. Do your volume up, volume down, or other buttons work?
              Last edited by capkid; 08-09-2013, 09:53 AM.
              LG Plasma Mal-Discharge Correction Service

              Comment

              • aaronwt6
                Badcaps Veteran
                • Apr 2013
                • 855
                • US

                #8
                Re: p50hdtv10a Plasma snow and lines no sound

                I've worked on two of these now and both had bad buttons on the side. Had to press very hard for some to work and others wouldn't work at all. Seems like possible a common problem. Remote worked fine though.

                Comment

                • capkid
                  Badcaps Legend
                  • Oct 2010
                  • 1339
                  • United States

                  #9
                  Re: p50hdtv10a Plasma snow and lines no sound

                  Originally posted by aaronwt6
                  I've worked on two of these now and both had bad buttons on the side. Had to press very hard for some to work and others wouldn't work at all. Seems like possible a common problem. Remote worked fine though.
                  That's where I was going, also. The keyboard probably has some corrosion or is just bad.
                  LG Plasma Mal-Discharge Correction Service

                  Comment

                  • aaronwt6
                    Badcaps Veteran
                    • Apr 2013
                    • 855
                    • US

                    #10
                    Re: p50hdtv10a Plasma snow and lines no sound

                    Yep. Both of the ones I delt with had not visible damage. Just unresponsive and/or very hard to push.

                    Comment

                    • jack1
                      Member
                      • Mar 2013
                      • 30
                      • usa

                      #11
                      Re: p50hdtv10a Plasma snow and lines no sound

                      thanks guys. i will order remote and let you know

                      Comment

                      • capkid
                        Badcaps Legend
                        • Oct 2010
                        • 1339
                        • United States

                        #12
                        Re: p50hdtv10a Plasma snow and lines no sound

                        Originally posted by jack1
                        thanks guys. i will order remote and let you know
                        You can get a cheap universal Vizio remote on eBay. Example: http://www.ebay.com/itm/VIZIO-VR1-09...item41558f1432
                        Last edited by capkid; 08-09-2013, 11:19 AM.
                        LG Plasma Mal-Discharge Correction Service

                        Comment

                        • aaronwt6
                          Badcaps Veteran
                          • Apr 2013
                          • 855
                          • US

                          #13
                          Re: p50hdtv10a Plasma snow and lines no sound

                          Originally posted by jack1
                          thanks guys. i will order remote and let you know
                          Or, if you have one most cable and satellite receivers have a programmable remote so you can at least test first. Also, try pressing the buttons very hard. And by hard I'm not kidding. Most of them worked on the two sets I'm referring to but I had to press them so hard I thought they might break.

                          Comment

                          • jack1
                            Member
                            • Mar 2013
                            • 30
                            • usa

                            #14
                            Re: p50hdtv10a Plasma snow and lines no sound

                            thank you i kept pushing the imput and it worked thanks again one other thng what does the 10 blinks after shutdown mean

                            Comment

                            • jack1
                              Member
                              • Mar 2013
                              • 30
                              • usa

                              #15
                              Re: p50hdtv10a Plasma snow and lines no sound

                              something new finally stood tv up and i have 2 line horizontaly on screen one tin line right in middle of screen and 1 quarter inch line 4 inches from bottom both lines are black

                              Comment

                              • aaronwt6
                                Badcaps Veteran
                                • Apr 2013
                                • 855
                                • US

                                #16
                                Re: p50hdtv10a Plasma snow and lines no sound

                                Could be one or more of the ribbon cables not seated well into one of the buffer boards. I had to try a few times on the last one I did. You should be able to guess which ribbon it is based on the location of the line(s).

                                Comment

                                • jack1
                                  Member
                                  • Mar 2013
                                  • 30
                                  • usa

                                  #17
                                  Re: p50hdtv10a Plasma snow and lines no sound

                                  cleaned all ribons on buffer boards works perfect also for some reason the buttons on side work too go figure thanks for all the help

                                  Comment

                                  • aaronwt6
                                    Badcaps Veteran
                                    • Apr 2013
                                    • 855
                                    • US

                                    #18
                                    Re: p50hdtv10a Plasma snow and lines no sound

                                    Awesome. Great to hear and thanks for the update!

                                    Comment

                                    • jack1
                                      Member
                                      • Mar 2013
                                      • 30
                                      • usa

                                      #19
                                      Re: p50hdtv10a Plasma snow and lines no sound

                                      back again tv works fine for 2 days now starts up and shuts down in 10 seconds. any ideas

                                      Comment

                                      • tom66
                                        EVs Rule
                                        • Apr 2011
                                        • 32560
                                        • UK

                                        #20
                                        Re: p50hdtv10a Plasma snow and lines no sound

                                        These Vizios will shut down after about 10 seconds with no video. Does it do it if you have a signal?
                                        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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