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Phillips 47pfl7642d/05

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    #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
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    #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...

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      #3
      Re: Phillips 47pfl7642d/05

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

      Comment

        #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.

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          #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

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            #6
            Re: Phillips 47pfl7642d/05

            Originally posted by quiggy View Post
            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

              #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

                #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.

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