Philips 42PFL7403D 42" TV

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  • Bitfix
    New Member
    • Aug 2016
    • 5
    • Norway
    #1

    Philips 42PFL7403D 42" TV

    Hello my learned friends. (hope that doesn't sound too tacky)

    My TV a Philips 42PFL7403D developed a problem with the screen flickering and sometimes taking several attempts to switch on.

    I whipped the back cover off to check out my suspicion of one or more bad caps, and staring me in the face, there it was on the power board, cap number 2111: a 330uF 200V Lelon REA 85C. Unmistakably bulging at the top.

    Here in Central Norway we are not exactly tripping over electronic component suppliers, but we managed to locate one local guy who does some odd repairs.


    He had a Nippon Chemi-Con 330uf 400v in stock which had the same 10mm pin pitch but the can itself was almost twice as high. I fitted it, but then the TV would not come on at all. I then proceeded to refit the old bulging cap and boom it fired up again, albeit with the blinking fault

    My question is this. Why would that replacement cap not work? the original was rated at 200v but the replacement was rated at 400v.

    Needless to say I fitted it with correct polarity. Is it possible the new one was duff (I don't have a cap tester) or do I need to buy another which is rated at 200v

    Thanks in advance for any help.
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: Philips 42PFL7403D 42" TV

      Unless the capacitor has a high ESR I don't see why it would not work. Can't you order a replacement through ebay?
      Willing to help but I'm no expert.

        Comment

        • Bitfix
          New Member
          • Aug 2016
          • 5
          • Norway
          #3
          Re: Philips 42PFL7403D 42" TV

          It's quite a mystery to me. All the other caps look good.

          Yes I'm going to order a replacement online, but was just asking beforehand to see if anyone had any additional insight, as if I have to wait several days for delivery it would be good to get everything together. I don't see what else it could be other than that, so I guess I'll just go ahead and order the replacement and hope for the best.

          Thanks.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: Philips 42PFL7403D 42" TV

              Some other caps that may not show the sign of bulging tops can be bad too.
              Never stop learning
              Basic LCD TV and Monitor troubleshooting guides.
              http://www.badcaps.net/forum/showthr...956#post305956

              Voltage Regulator (LDO) testing:
              http://www.badcaps.net/forum/showthr...999#post300999

              Inverter testing using old CFL:
              http://www.badcaps.net/forum/showthr...er+testing+cfl

              Tear down pictures : Hit the ">" Show Albums and stories" on the left side
              http://s807.photobucket.com/user/budm/library/

              TV Factory reset codes listing:
              http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

                • Bitfix
                  New Member
                  • Aug 2016
                  • 5
                  • Norway
                  #5
                  Re: Philips 42PFL7403D 42" TV

                  Yes indeed Budm, that is quite true, and I intend to swap at least 3 other 'startup' caps in the process too. Fortunately we have those lying around the workshop, it was just this larger, bulging cap which was the problem to get hold of.

                  But I sincerely thank you for the reminder / tip and also the links provided.

                  I ordered the 330uf 200v cap and when it arrives on Tuesday 30/08/16 I'll fit it (before the other 3) and when the job is complete I will post the results just in case it may benefit someone else at some point.

                  Thanks.

                    Comment

                    • Diah
                      Badcaps Legend
                      • Feb 2013
                      • 6357
                      • Germany
                      #6
                      Re: Philips 42PFL7403D 42" TV

                      you need to tell what blinking code you get after your replace the original cap in set !!

                      did you know about Philips SDM ?

                        Comment

                        • Bitfix
                          New Member
                          • Aug 2016
                          • 5
                          • Norway
                          #7
                          Re: Philips 42PFL7403D 42" TV

                          Ok Diah, I'll be sure to do that.

                            Comment

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