Pn50b400pd3

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  • Eaglefan3429
    Member
    • Mar 2013
    • 18
    • USA
    #1

    Pn50b400pd3

    I have a Samsung Plasma 50 inch model Pn50B400PD3XZA that won't turn on. Plug in the power cord, it clicks. Logic Board green light comes on for 3 seconds then goes out. I tested Vs and Va test points and both have little to no voltage. I confirmed 120v coming into the board so I know it's getting power. I tried to jumper the logic board per Tom's thread, no change. When I disconnect the Y-sus board I hear start up music, but no picture. No bulging capacitors on the power supply. Anything else I can try?
    Attached Files
    Last edited by Eaglefan3429; 08-31-2014, 02:13 PM.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Pn50b400pd3

      When Y-main (Y-sus) is disconnected does Vs/Va appear?
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • Eaglefan3429
          Member
          • Mar 2013
          • 18
          • USA
          #3
          Re: Pn50b400pd3

          No it never appears after everything I have tried

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Pn50b400pd3

              Can you supply a photo of how it's all wired together inside the TV - make it clear and in focus. Need to figure out if it's got a combined ERC or separate ERC. (The wiring will make it obvious.)
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

                • Eaglefan3429
                  Member
                  • Mar 2013
                  • 18
                  • USA
                  #5
                  Re: Pn50b400pd3

                  Just posted pictures of the unit in the above post

                    Comment

                    • Eaglefan3429
                      Member
                      • Mar 2013
                      • 18
                      • USA
                      #6
                      Re: Pn50b400pd3

                      What do you think?

                        Comment

                        • Eaglefan3429
                          Member
                          • Mar 2013
                          • 18
                          • USA
                          #7
                          Re: Pn50b400pd3

                          Are the pictures not clear enough?

                            Comment

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