Sanyo DP42740 keeps blowing fuses

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  • JunkmanJimbo
    Senior Member
    • Mar 2017
    • 192
    • United States
    #1

    Sanyo DP42740 keeps blowing fuses

    Sanyo DP42740 keeps blowing the two fuses at the main power cord connection. I have replaced both and they continue to blow when I plug in the power cord. With everything disconnected from the power supply board, I connected each cable one at a time to try to determine when they blow. When I connected the analog board the fuses blew. Don't know if this has anything do with it or not. Any ideas? Thanks in advance.
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    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa
      #2
      Re: Sanyo DP42740 keeps blowing fuses

      With just power board connected does it blow fuse?
      I assume no responsibility for any stupid suggestions I might post.

        Comment

        • JunkmanJimbo
          Senior Member
          • Mar 2017
          • 192
          • United States
          #3
          Re: Sanyo DP42740 keeps blowing fuses

          No, it does not blow the fuses when just the power cord is connected.

            Comment

            • dskall
              Badcaps Legend
              • Oct 2016
              • 2905
              • usa
              #4
              Re: Sanyo DP42740 keeps blowing fuses

              Need picture of whole back of tv
              I assume no responsibility for any stupid suggestions I might post.

                Comment

                • JunkmanJimbo
                  Senior Member
                  • Mar 2017
                  • 192
                  • United States
                  #5
                  Re: Sanyo DP42740 keeps blowing fuses

                  Okay I will get it now, thanks.

                    Comment

                    • JunkmanJimbo
                      Senior Member
                      • Mar 2017
                      • 192
                      • United States
                      #6
                      Re: Sanyo DP42740 keeps blowing fuses

                      Here's the picture you asked for.
                      Attached Files

                        Comment

                        • tw2005
                          Badcaps Legend
                          • Oct 2011
                          • 6458
                          • Australia
                          #7
                          Re: Sanyo DP42740 keeps blowing fuses

                          Originally posted by JunkmanJimbo
                          Sanyo DP42740 keeps blowing the two fuses at the main power cord connection. I have replaced both and they continue to blow when I plug in the power cord. With everything disconnected from the power supply board, I connected each cable one at a time to try to determine when they blow. When I connected the analog board the fuses blew. Don't know if this has anything do with it or not. Any ideas? Thanks in advance.
                          If you look at this TV as a Panasonic Hybrid it makes sense. The Analog board would be sending the command to latch the 2 relays which applies mains, sounds like the power board FETs will be shorted out and who knows what else. That's where I'd start. shopjimmy does a kit for common failures.

                          Amaybe that's also a clue where to look.

                            Comment

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