Phillips 47pfl7642d/05

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

    Phillips 47pfl7642d/05

    I have a quick question, I have a Phillips 47pfl7642d/05 with sound, backlight but no picture.

    I thought it could be t-con and I've not even got as far as taking it out, but I noticed that the slave inverter board has 2 blown caps with clear indications they they're both gone (2 x 35v 680uf). Now, these being blown won't have any affect on the picture being displayed would it? they just control the backlight? which is working.

    I assume the master inverter is why the backlight is still running?

    Cheers guys
    Tags: None
    • sententia
      Badcaps Veteran
      • Oct 2013
      • 269
      • Greece
      #2
      Re: Phillips 47pfl7642d/05

      Maybe you should replace those and check all others if possible. Perform a test and take it from there. It is and indication that other caps might have failed as well.
      I am not sure if it would cause no image but there might be feedback from inverter to psu and mainboard...

        Comment

        • Hamie
          Badcaps Legend
          • Apr 2014
          • 1383
          • UK
          #3
          Re: Phillips 47pfl7642d/05

          If the backlight is on then it's not them causing your fault.
          Best to replace them thought.

            Comment

            • quiggy
              Senior Member
              • Aug 2014
              • 136
              • United Kingdom
              #4
              Re: Phillips 47pfl7642d/05

              I thought as much but thought I'd ask, I'll replace them anyway and move on to that t-con when I finally manage to get to it, it's under the metal plate which every other board is screwed to, wonderful.

                Comment

                • quiggy
                  Senior Member
                  • Aug 2014
                  • 136
                  • United Kingdom
                  #5
                  Re: Phillips 47pfl7642d/05

                  Could the control board cause the same symptoms as the t-con? There's sound and backlight just no picture

                    Comment

                    • sententia
                      Badcaps Veteran
                      • Oct 2013
                      • 269
                      • Greece
                      #6
                      Re: Phillips 47pfl7642d/05

                      Originally posted by quiggy
                      Could the control board cause the same symptoms as the t-con? There's sound and backlight just no picture
                      Have you replaced the mainboard or tempered any settings in service menu?

                      You can always try with remote control:

                      062598 MENU XXX

                      where XXX is the 3 digit number printed on the side sticker of the back cover of the TV. This will reinitialize the panel.

                        Comment

                        • quiggy
                          Senior Member
                          • Aug 2014
                          • 136
                          • United Kingdom
                          #7
                          Re: Phillips 47pfl7642d/05

                          I've not replaced the main AV board because there were sound so I assumed that would be ok.

                            Comment

                            • quiggy
                              Senior Member
                              • Aug 2014
                              • 136
                              • United Kingdom
                              #8
                              Re: Phillips 47pfl7642d/05

                              I replaced the t-con and the problem still remains, there is some red pixels I've noticed in the bottom left corner though, not sure what this could mean.

                                Comment

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