Phillips 42PF7320A/37 Also a bad panel?

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  • douellette88
    Senior Member
    • Jun 2015
    • 61
    • USA
    #1

    Phillips 42PF7320A/37 Also a bad panel?

    So I also have this Phillips flat panel that I can't tell if it has a bad panel in it or not. When you turn it on the screen is covered mostly by black lines. If you leave it on, the "colored" lines slowly start appearing from the right side of the screen to the left. I haven't replaced anything yet, but I figured I'd start with the y-main boards on the left side of the panel. I've attached a pic of what it looks like, sorry if its bad and doesn't really show much haha. This tv requires you take the stand off in order to take the back panel off.

    https://goo.gl/photos/HiTUvpWftRHLq7a46

    https://goo.gl/photos/1pXYpNceJYy5z7NU6
    Tags: None
    • douellette88
      Senior Member
      • Jun 2015
      • 61
      • USA
      #2
      Re: Phillips 42PF7320A/37 Also a bad panel?

      bump, anyone have any ideas for me?

        Comment

        • Dang
          Badcaps Veteran
          • Aug 2013
          • 440
          • UK
          #3
          Re: Phillips 42PF7320A/37 Also a bad panel?

          I'm not entirely sure but looking at that pattern, it looks like a main board issue to me, the main processor may have cold joints or is damaged in some way.

            Comment

            • douellette88
              Senior Member
              • Jun 2015
              • 61
              • USA
              #4
              Re: Phillips 42PF7320A/37 Also a bad panel?

              Alrighty, so you don't think it would be the Y? drive board on the left side of the tv?

                Comment

                • mmartell
                  Badcaps Legend
                  • Oct 2013
                  • 3189
                  • Canada
                  #5
                  Re: Phillips 42PF7320A/37 Also a bad panel?

                  It looks like it's trying to draw an image but doesn't know how. I would suspect the control board (beneath the main board).

                  Do you know how to jumper the control board to enable test patterns ?

                    Comment

                    • douellette88
                      Senior Member
                      • Jun 2015
                      • 61
                      • USA
                      #6
                      Re: Phillips 42PF7320A/37 Also a bad panel?

                      Originally posted by mmartell
                      It looks like it's trying to draw an image but doesn't know how. I would suspect the control board (beneath the main board).

                      Do you know how to jumper the control board to enable test patterns ?
                      Okay well thats good to hear, and nope no idea. Is it easy to do without electrocuting myself? lol

                        Comment

                        • mmartell
                          Badcaps Legend
                          • Oct 2013
                          • 3189
                          • Canada
                          #7
                          Re: Phillips 42PF7320A/37 Also a bad panel?

                          Well, yes. You do it with the power off (and it's low voltage there anyhow).

                          Post a pic of that board. There will probably be a four pin unused header we are looking for.

                            Comment

                            • douellette88
                              Senior Member
                              • Jun 2015
                              • 61
                              • USA
                              #8
                              Re: Phillips 42PF7320A/37 Also a bad panel?

                              I haven't taken the metal shield off that board but here are some images from shopjimmy

                              https://assets.shopjimmy.com/media/c...800204-top.jpg

                              https://assets.shopjimmy.com/media/c...204-bottom.jpg

                              https://assets.shopjimmy.com/media/c...0432837671.jpg

                                Comment

                                • mmartell
                                  Badcaps Legend
                                  • Oct 2013
                                  • 3189
                                  • Canada
                                  #9
                                  Re: Phillips 42PF7320A/37 Also a bad panel?

                                  That is your MAIN board. The board we are looking for is probably underneath it though can't be sure without a pic of the set with the back off.

                                    Comment

                                    • douellette88
                                      Senior Member
                                      • Jun 2015
                                      • 61
                                      • USA
                                      #10
                                      Re: Phillips 42PF7320A/37 Also a bad panel?

                                      Alright got it disassembled but it was a huge PITA to get to. Let me know if you see what you were talking about in any of the pictures. If I have to test this board with the tv plugged in, I don't know how that will be possible as I had to remove a shroud that holds the main board and ac adapter plug, including grounds, to get to it. Never seen a tv have so many screws haha.

                                      https://goo.gl/photos/7mu4YiPm9PQujZEH7
                                      https://goo.gl/photos/TbDW1AAveXdL8Rum9
                                      https://goo.gl/photos/cjkeUrr5yPL5FJKv7
                                      https://goo.gl/photos/wsXanXTTyzg2tDXM7 <--some sort of pressable button
                                      https://goo.gl/photos/4t1RD8npatXY6Etn6

                                        Comment

                                        • kc8adu
                                          Super Moderator
                                          • Nov 2003
                                          • 8832
                                          • U.S.A!
                                          #11
                                          Re: Phillips 42PF7320A/37 Also a bad panel?

                                          disconnect lvds and put the control in test.
                                          its a jumper.look it up first.

                                            Comment

                                            • douellette88
                                              Senior Member
                                              • Jun 2015
                                              • 61
                                              • USA
                                              #12
                                              Re: Phillips 42PF7320A/37 Also a bad panel?

                                              So I went ahead and just replaced the t-con board (or the control board as you guys call it on here), because it was only like $8. Picture did not change. Doing research online it seems the y-main & sustain board in this tv is common for failure so Im suspecting that. What would you think?

                                                Comment

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