VP504FHDTV10A plasma doesn't turn on, VIZIO emblem stays amber

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  • withalligators
    Badcaps Veteran
    • Jun 2013
    • 267
    • USA
    #1

    VP504FHDTV10A plasma doesn't turn on, VIZIO emblem stays amber

    Picked this up from the E-Waste bin a while ago, but hadn't been in the country for a while to work on it.

    Soooo, I've done a little research and a few people on the internets reported success with the MC301 / MC201 IC and capacitor swap. I just finished the job following this video but, alas, no cigar. When I plug it in (if it hasn't been plugged in for a few minutes), I hear a relay click once (unless it's been plugged in within the last minute or two, in which case no relays can be heard) but that's it, no LED blinks, no reaction to button presses.

    Has anyone had any experience with this issue?

    I seem to have 5V in a bunch of places, but I can't find any pins that react to any buttons.

    The power board is a ETX2MM704MGN panasonic unit.

    I also, despite having a service manual, can't seem to find proper voltage schematics. This guy's online problem solving chat seemed to indicate voltages are different from the panasonic despite being the "same" board.

    Thanks in advance,

    Alex

    EDIT-





    Last edited by withalligators; 12-22-2013, 08:09 PM.
    Tags: None
    • withalligators
      Badcaps Veteran
      • Jun 2013
      • 267
      • USA
      #2
      Re: VP504FHDTV10A plasma doesn't turn on, VIZIO emblem stays amber

      Bump...
      Last edited by withalligators; 12-23-2013, 02:20 PM.

        Comment

        • withalligators
          Badcaps Veteran
          • Jun 2013
          • 267
          • USA
          #3
          Re: VP504FHDTV10A plasma doesn't turn on, VIZIO emblem stays amber

          Things that go bump in the night...

            Comment

            • withalligators
              Badcaps Veteran
              • Jun 2013
              • 267
              • USA
              #4
              Re: VP504FHDTV10A plasma doesn't turn on, VIZIO emblem stays amber

              Update: I gave up and sent in the power supply board to ebay user Koshevo who rebuilt it to working order for $120. I received the board today, and it was in great shape, everything that could flex had been secured with glue and the repairs were clean and in tip top shape. TV works fine now, though I haven't watched a ton on it yet to "stress test" it.

              So, to any researchers looking to diagnose a similar problem, it was the PSU for me, though not definitely the MC201 and MC301 daughter boards.

                Comment

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