Hitachi 42pd5200 power board mpf7409 has stopped

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  • Alastair E
    Chief Womble
    • Mar 2013
    • 1963
    • U.K.

    #21
    Re: Hitachi 42pd5200 power board mpf7409 has stopped

    Err--Well, Not Really!

    Those are just flow-charts and a poor illustration diagram--of the Wrong PSU (for my 32" NOT your 42" set PSU) and Not a Proper Schematic of Your supply-board.

    Check that Va supply and where it comes from Is that running, is it commoned with the Vs Generator or is it a separate stage.

    --Only you can see--as its in front of you!

    As there's NO schematic of the PSU about--You just gotta follow tracks on the board and check stuff/make deductions as to whats what....
    TELEFIX

    How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
    http://www.irf.com/technical-info/appnotes/an-1088.pdf
    PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

    Comment

    • Portishead
      Senior Member
      • Mar 2016
      • 123
      • Uk

      #22
      Re: Hitachi 42pd5200 power board mpf7409 has stopped

      Would you fix it if I sent it to you?

      Comment

      • dick_barton
        Badcaps Legend
        • Aug 2015
        • 6642
        • Wales

        #23
        Re: Hitachi 42pd5200 power board mpf7409 has stopped

        It's a pity but no-one appears to want plasma sets these days. They are almost impossible to sell on these days.
        Willing to help but I'm no expert.

        Comment

        • Portishead
          Senior Member
          • Mar 2016
          • 123
          • Uk

          #24
          Re: Hitachi 42pd5200 power board mpf7409 has stopped

          I just want it fixed. Surely somebody knows how. Quite happy to courier it there and back. I just want this TV for a bedroom now. It's a great TV.

          Comment

          • Alastair E
            Chief Womble
            • Mar 2013
            • 1963
            • U.K.

            #25
            Re: Hitachi 42pd5200 power board mpf7409 has stopped

            Originally posted by dick_barton
            It's a pity but no-one appears to want plasma sets these days. They are almost impossible to sell on these days.

            Not so!

            Only the old duffer sets without DTV and HDMI wont sell! My best sellers are Plasma sets--as alongside Any LCD, the Plasma picture knocks spots off cruddy LCD pictures....

            Cant get enough of 'em!
            TELEFIX

            How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
            http://www.irf.com/technical-info/appnotes/an-1088.pdf
            PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

            Comment

            • Portishead
              Senior Member
              • Mar 2016
              • 123
              • Uk

              #26
              Re: Hitachi 42pd5200 power board mpf7409 has stopped

              I don't like my new blury shakey led picture. My plasma is nicer
              .
              C'mon, Somebody fix it.

              Comment

              • dick_barton
                Badcaps Legend
                • Aug 2015
                • 6642
                • Wales

                #27
                Re: Hitachi 42pd5200 power board mpf7409 has stopped

                Originally posted by Alastair E
                Not so!

                Only the old duffer sets without DTV and HDMI wont sell! My best sellers are Plasma sets--as alongside Any LCD, the Plasma picture knocks spots off cruddy LCD pictures....

                Cant get enough of 'em!
                I'm only 50 miles up the road from you and as I said in my earlier post I find it almost impossible to sell Plasma sets on.
                Willing to help but I'm no expert.

                Comment

                • Alastair E
                  Chief Womble
                  • Mar 2013
                  • 1963
                  • U.K.

                  #28
                  Re: Hitachi 42pd5200 power board mpf7409 has stopped

                  Originally posted by dick_barton
                  I'm only 50 miles up the road from you and as I said in my earlier post I find it almost impossible to sell Plasma sets on.
                  Well--If you have some good sets with good undamaged screens, let me know....
                  TELEFIX

                  How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
                  http://www.irf.com/technical-info/appnotes/an-1088.pdf
                  PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

                  Comment

                  • dick_barton
                    Badcaps Legend
                    • Aug 2015
                    • 6642
                    • Wales

                    #29
                    Re: Hitachi 42pd5200 power board mpf7409 has stopped

                    Originally posted by Alastair E
                    Well--If you have some good sets with good undamaged screens, let me know....
                    Will do. Cheers
                    Willing to help but I'm no expert.

                    Comment

                    • Alastair E
                      Chief Womble
                      • Mar 2013
                      • 1963
                      • U.K.

                      #30
                      Re: Hitachi 42pd5200 power board mpf7409 has stopped

                      Originally posted by Portishead
                      I don't like my new blury shakey led picture. My plasma is nicer
                      .
                      C'mon, Somebody fix it.
                      Sorry--but I'm not in a position currently to offer a repair-service for those old Hitachi sets. Best I can offer is to look out for a scrapper set, they come along fairly frequently....

                      Trashed a 42PD5000 two or three weeks ago--went straight into skip, didn't bother even powering it up--No media-box-- and before that a month or so, there was another....

                      As I said--They are so bad, I just don't bother with 'em--Especially that version that uses the bloody mega-bux 'Media-Box' PD3000/PD5000, you cant do anything with the set without--at least yours is all internal to set!

                      I'll bet if you had your set working and by side of say, Samsung 42Q97HD (Approx same age, and screen res.), You wouldn't believe how bad the Hitachi actually is!
                      -(VERY easy to get accustomed to a poor picture over time)
                      TELEFIX

                      How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
                      http://www.irf.com/technical-info/appnotes/an-1088.pdf
                      PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

                      Comment

                      • Alastair E
                        Chief Womble
                        • Mar 2013
                        • 1963
                        • U.K.

                        #31
                        Re: Hitachi 42pd5200 power board mpf7409 has stopped

                        Originally posted by dick_barton
                        Will do. Cheers
                        --Preferably non working!
                        TELEFIX

                        How PLASMA SCREENS WORK, X-SUS and Y-SUS what they do--
                        http://www.irf.com/technical-info/appnotes/an-1088.pdf
                        PLEASE DO NOT EMAIL ME PRIVATELY FOR REPAIR ADVICE. QUESTIONS BELONG ON THE FORUM!

                        Comment

                        • dick_barton
                          Badcaps Legend
                          • Aug 2015
                          • 6642
                          • Wales

                          #32
                          Re: Hitachi 42pd5200 power board mpf7409 has stopped

                          -(VERY easy to get accustomed to a poor picture over time)
                          Very true Alastiar
                          I was visiting a family over the Christmas and while about 7 of us sat down to watch TV I asked them how long they had been having a problem with it. The first quarter of the screen (top to bottom) was dark and no-one had ever noticed it.

                          The top 4 CCFL tubes were not coming on and the repair was a quick resoldering of the inverter transformer contacts.
                          Willing to help but I'm no expert.

                          Comment

                          • Portishead
                            Senior Member
                            • Mar 2016
                            • 123
                            • Uk

                            #33
                            Re: Hitachi 42pd5200 power board mpf7409 has stopped

                            Ok, well if you come by one.. Remember me! I'll gladly cover cost to get it here.

                            Comment

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