Seiki SE50FY28 No Video Power Control Board mixed up

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  • Gadjet
    Badcaps Veteran
    • Aug 2012
    • 248
    • United States
    #1

    Seiki SE50FY28 No Video Power Control Board mixed up

    Ok this tv came in with no power, no standby light. I had a replacment power supply and that did nothing because the power contol board and the rf board both run to a connection on the mainboard so I replaced the mainboard. Now I get the red standby light but when I click the power button I get nothing. So I decide to hit all of the buttons and when i click the vol.up button the standby light turns blue and the tv powers on, but no picture, and I don't even see a backlight.
    Attached Files
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    • selldoor
      Slow Learner
      • Dec 2010
      • 7870
      #2
      Re: Seiki SE50FY28 No Video Power Control Board mixed up

      Can you post pictures of the labels on both main boards
      Can the cable from the on/off be connected the wrong way?
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

        Comment

        • Gadjet
          Badcaps Veteran
          • Aug 2012
          • 248
          • United States
          #3
          Re: Seiki SE50FY28 No Video Power Control Board mixed up

          Pics left to right the first one is the old main board 2nd one is the new one. 3rd pic is the control board / rf connector with the white dot that I'm guessing should be pin #1 along with the arrow on the board. Doesn't seem that it can be plugged in the wrong way
          Attached Files

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            • selldoor
              Slow Learner
              • Dec 2010
              • 7870
              #4
              Re: Seiki SE50FY28 No Video Power Control Board mixed up

              Well may be good news and terrible news.
              Sadly good news is the cable can only be plugged in one way.
              Terrible news is I think your replacement board is for a 47 inch Seiki.
              see here http://www.shopjimmy.com/catalogsear...ult/?q=35J0788
              Please upload pictures using attachment function when ask for help on the repair
              http://www.badcaps.net/forum/showthread.php?t=39740

                Comment

                • Gadjet
                  Badcaps Veteran
                  • Aug 2012
                  • 248
                  • United States
                  #5
                  Re: Seiki SE50FY28 No Video Power Control Board mixed up

                  So you think the control board pin set might be different on the other model? didn't match the M/O # and the C/N #

                    Comment

                    • selldoor
                      Slow Learner
                      • Dec 2010
                      • 7870
                      #6
                      Re: Seiki SE50FY28 No Video Power Control Board mixed up

                      The main board eeprom probably has a different dataset and drivers for the size of screen.
                      SJ are pretty good at saying which boards is for which set they do have both and they only mention the one set for each board.
                      If you got your board from them they will probably let you exchange it.
                      Please upload pictures using attachment function when ask for help on the repair
                      http://www.badcaps.net/forum/showthread.php?t=39740

                        Comment

                        • Gadjet
                          Badcaps Veteran
                          • Aug 2012
                          • 248
                          • United States
                          #7
                          Re: Seiki SE50FY28 No Video Power Control Board mixed up

                          I finally got a chance to change out this board with one with the exact same board information as the original just to have it do the same thing as the wrong board. So now I'm guessing that I need to change the firmware for the board but can't find it. Anybody have a clue or know how I can get it?

                            Comment

                            • nuala
                              Member
                              • Aug 2013
                              • 37
                              • USA
                              #8
                              Re: Seiki SE50FY28 No Video Power Control Board mixed up

                              Seiki: http://www.seikidigital.com/support/downloads.php

                                Comment

                                • Gadjet
                                  Badcaps Veteran
                                  • Aug 2012
                                  • 248
                                  • United States
                                  #9
                                  Re: Seiki SE50FY28 No Video Power Control Board mixed up

                                  Yeah I looked here didn't see the model number.

                                    Comment

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