SANYO DP50749 Clicks on and off repeatedly

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  • 1beertap
    Badcaps Veteran
    • Mar 2009
    • 219
    • USA
    #1

    SANYO DP50749 Clicks on and off repeatedly

    Hello,

    when I turn this tv on, it comes on for a few seconds and cuts off repeatedly. There is a green LED on the SC board that comes on and cuts off with the cycling of the relays. There is no LED on the SS board. The panel will light up but seems dim. Again, I haven't had many experiences with plasma tvs. Thanks.
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    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6457
      • Australia
      #2
      Re: SANYO DP50749 Clicks on and off repeatedly

      Well it's panasonic based panel and boards and if the panel is energising but this is cycling so I hazard a guess at mainboard. maybe logic board.
      Last edited by tw2005; 10-17-2014, 10:14 PM.

        Comment

        • tw2005
          Badcaps Legend
          • Oct 2011
          • 6457
          • Australia
          #3
          Re: SANYO DP50749 Clicks on and off repeatedly

          Some clue reading this

          http://www.coppelltvrepair.com/p/57/...rd-pwbmainj4ff

          This tells you not a lot

          Fixes following symptoms:
          -won’t come on
          -green light comes on then off
          -no picture, no sound

          http://www.ebay.com.au/itm/SANYO-Mai...-/141220165383
          Last edited by tw2005; 10-17-2014, 10:27 PM.

            Comment

            • 1beertap
              Badcaps Veteran
              • Mar 2009
              • 219
              • USA
              #4
              Re: SANYO DP50749 Clicks on and off repeatedly

              After finding a service manual and reading online about others that had similar problem, I decided to order a hynixx nand flash chip with sw84 firmware preloaded. I'll see how it goes and report back. The location of this chip is at IC5057 on the main board.

              tw2005, I bet IC5057 is one of the chips sold in that kit on ebay.

                Comment

                • 1beertap
                  Badcaps Veteran
                  • Mar 2009
                  • 219
                  • USA
                  #5
                  Re: SANYO DP50749 Clicks on and off repeatedly

                  I received the new hynixx nand flash chip today, replaced the old one, and now the tv is working great!!! My guess is that the firmware must of gotten corrupt. Thanks tw2005 and others with this fix.

                    Comment

                    • pituk
                      New Member
                      • Dec 2014
                      • 1
                      • United States
                      #6
                      Re: SANYO DP50749 Clicks on and off repeatedly

                      I have this exact same problem with the Sanyo Dp50749 , can you tell me where to order the IC5057 replacement on the main board .
                      Thanks

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