ke 42m1 Sony 42" plasma

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  • mj32405
    Member
    • Oct 2013
    • 16
    • usa
    #1

    ke 42m1 Sony 42" plasma

    Hi everyone.. I have an issue with my plasma tv .. When you first turn on it works fine then after about 20 min of running and warm up there are red dots like Snow all over the screen and Horizontal lines going across. the screen.. it looks like in sections of screen though..


    first pic is at start up and it looks good. the others are when it is warm..it gets worse than this though
    Attached Files
    Last edited by mj32405; 10-22-2013, 07:46 PM.
    Tags: None
    • mj32405
      Member
      • Oct 2013
      • 16
      • usa
      #2
      Re: ke 42m1 Sony 42" plasma

      here is what it looks like now andit gets worst
      Attached Files

        Comment

        • mj32405
          Member
          • Oct 2013
          • 16
          • usa
          #3
          Re: ke 42m1 Sony 42" plasma

          pics
          Attached Files

            Comment

            • 120volts
              Senior Member
              • Oct 2013
              • 57
              • USA
              #4
              Re: ke 42m1 Sony 42" plasma

              Hi I'm new to this forum but these are my first thoughts
              Since it's a problem that takes a while to show up indicates its heat related.
              check for dust buildup on heat sinks and fans if any.
              I would then check power supply voltages to see if any are running high.
              Look for any components that look burned or abnormal.

              If everything looks OK I would try using circuit freeze on various components
              Freezing a component that clears up the problem usually indicates it's bad.
              Dan "TV Tinkerer"

                Comment

                • mj32405
                  Member
                  • Oct 2013
                  • 16
                  • usa
                  #5
                  Re: ke 42m1 Sony 42" plasma

                  Thanks ,Where can I find circuit freeze?

                    Comment

                    • freakaftr8
                      Badcaps Legend
                      • Oct 2012
                      • 3743
                      • USA
                      #6
                      Re: ke 42m1 Sony 42" plasma

                      Looks like a control board issue. This board has the ribbon cables that to to the panel itself. Located behind all the other boards. Use a can of freeze spray or compressed air upside down and spray the main probessor on that board
                      Did I leave the soldering iron on?

                        Comment

                        • mj32405
                          Member
                          • Oct 2013
                          • 16
                          • usa
                          #7
                          Re: ke 42m1 Sony 42" plasma

                          Thanks I'll try it tonight

                            Comment

                            • mj32405
                              Member
                              • Oct 2013
                              • 16
                              • usa
                              #8
                              Re: ke 42m1 Sony 42" plasma

                              No This ddi not Work still lines and snow all over the screen..

                                Comment

                                • mj32405
                                  Member
                                  • Oct 2013
                                  • 16
                                  • usa
                                  #9
                                  Re: ke 42m1 Sony 42" plasma

                                  Originally posted by freakaftr8
                                  Looks like a control board issue. This board has the ribbon cables that to to the panel itself. Located behind all the other boards. Use a can of freeze spray or compressed air upside down and spray the main probessor on that board
                                  okay now which one is the board..I have ribbon cables everywhere..
                                  Attached Files

                                    Comment

                                    • freakaftr8
                                      Badcaps Legend
                                      • Oct 2012
                                      • 3743
                                      • USA
                                      #10
                                      Re: ke 42m1 Sony 42" plasma

                                      Behind bottom center board.
                                      Did I leave the soldering iron on?

                                        Comment

                                        • mj32405
                                          Member
                                          • Oct 2013
                                          • 16
                                          • usa
                                          #11
                                          Re: ke 42m1 Sony 42" plasma

                                          Okay found it I will try again

                                            Comment

                                            • mj32405
                                              Member
                                              • Oct 2013
                                              • 16
                                              • usa
                                              #12
                                              Re: ke 42m1 Sony 42" plasma

                                              Okay I got to the control board.. It helped a lot sprayed with compressed air and the picture is now. flasshin make my eyes hurt its like lookin at an old projector reel..Do I need to calibrate boards. or should I replace this control board

                                                Comment

                                                • freakaftr8
                                                  Badcaps Legend
                                                  • Oct 2012
                                                  • 3743
                                                  • USA
                                                  #13
                                                  Re: ke 42m1 Sony 42" plasma

                                                  Something sounds amiss with that board. Is it still flashing? Did the original problem dissappear before this started?
                                                  Did I leave the soldering iron on?

                                                    Comment

                                                    • mj32405
                                                      Member
                                                      • Oct 2013
                                                      • 16
                                                      • usa
                                                      #14
                                                      Re: ke 42m1 Sony 42" plasma

                                                      Originally posted by freakaftr8
                                                      Something sounds amiss with that board. Is it still flashing? Did the original problem dissappear before this started?
                                                      Actually i sprayed the board again and everything whent back to normal...
                                                      Where can i get anew board.. Or is this one repairable?

                                                        Comment

                                                        • mj32405
                                                          Member
                                                          • Oct 2013
                                                          • 16
                                                          • usa
                                                          #15
                                                          Re: ke 42m1 Sony 42" plasma

                                                          okay i got the tv together
                                                          i have some red dots only on white pictures though.. and for some reason my sound on hdmi outputs do not work .. everything else works fine.. please help

                                                            Comment

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