MX-7040 No Boot or Display

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  • xring1958
    Trusted Tech

    100+ Posts
    • Mar 2016
    • 166
    #1

    MX-7040 No Boot or Display

    We have a MX-7040 that wont boot up. No display, no home light the led that is beside the display that tells you when its ok to turn on is blinking and there are fans running. I checked the DC Power supply and Sub DC power supply both are giving me correct voltages but the DC PS had to be tested at other end of connectors since sharp hides the board behind other boards but they seem fine. I guess I will start tracing back from display and se hat goes. If any of you have seen this issue any help is appreciated as always.
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    • ZOOTECH
      Senior member of CRS

      Site Contributor
      2,500+ Posts
      • Jul 2007
      • 3374
      #2
      Re: MX-7040 No Boot or Display

      Originally posted by xring1958
      We have a MX-7040 that wont boot up. No display, no home light the led that is beside the display that tells you when its ok to turn on is blinking and there are fans running. I checked the DC Power supply and Sub DC power supply both are giving me correct voltages but the DC PS had to be tested at other end of connectors since sharp hides the board behind other boards but they seem fine. I guess I will start tracing back from display and se hat goes. If any of you have seen this issue any help is appreciated as always.
      Check the service manual where it shows the contents of the memories - most likely the SD or CF card will have the 'boot' info, reseat or replace it.
      "You can't trust your eyes, if your mind is out of focus" --

        Comment

        • JLSam
          Senior Tech

          500+ Posts
          • Jun 2015
          • 605
          #3
          Re: MX-7040 No Boot or Display

          Originally posted by xring1958
          We have a MX-7040 that wont boot up. No display, no home light the led that is beside the display that tells you when its ok to turn on is blinking and there are fans running. I checked the DC Power supply and Sub DC power supply both are giving me correct voltages but the DC PS had to be tested at other end of connectors since sharp hides the board behind other boards but they seem fine. I guess I will start tracing back from display and se hat goes. If any of you have seen this issue any help is appreciated as always.
          It could also be the data security kit ROM gone bad.

          I had one MX-5111 with MXfr33u not boot because of the corrupt ROM, and I had to replace perform an emergency firmware update.

          Sent from my ONEPLUS A3000 using Tapatalk

            Comment

            • kentteam
              Junior Member
              • May 2013
              • 5
              #4
              Re: MX-7040 No Boot or Display

              Originally posted by xring1958
              We have a MX-7040 that wont boot up. No display, no home light the led that is beside the display that tells you when its ok to turn on is blinking and there are fans running. I checked the DC Power supply and Sub DC power supply both are giving me correct voltages but the DC PS had to be tested at other end of connectors since sharp hides the board behind other boards but they seem fine. I guess I will start tracing back from display and se hat goes. If any of you have seen this issue any help is appreciated as always.
              Perform emergency firmware update

                Comment

                • kentteam
                  Junior Member
                  • May 2013
                  • 5
                  #5
                  Re: MX-7040 No Boot or Display

                  perform emergency firmware update

                    Comment

                    • jp74msj55
                      Trusted Tech

                      100+ Posts
                      • Oct 2014
                      • 146
                      #6
                      Re: MX-7040 No Boot or Display

                      SD card most likely problem.

                        Comment

                        • xring1958
                          Trusted Tech

                          100+ Posts
                          • Mar 2016
                          • 166
                          #7
                          Re: MX-7040 No Boot or Display

                          I have one on order will let yall know if it corrects issue.

                            Comment

                            • xring1958
                              Trusted Tech

                              100+ Posts
                              • Mar 2016
                              • 166
                              #8
                              Re: MX-7040 No Boot or Display

                              .
                              SD Card didn't correct issue have MFP PWB on order

                                Comment

                                • harleyrider
                                  Trusted Tech

                                  250+ Posts
                                  • Oct 2011
                                  • 348
                                  #9
                                  Re: MX-7040 No Boot or Display

                                  they have changed the pwb rom. Be sure and order the right pwb or you may need a rom also. See MFP-TB-785. I ran into this.

                                    Comment

                                    • xring1958
                                      Trusted Tech

                                      100+ Posts
                                      • Mar 2016
                                      • 166
                                      #10
                                      Re: MX-7040 No Boot or Display

                                      OK everyone thanks for your input. It turns out that replacing the MFP PWB solved the issue.
                                      If everyone ends their post with the solution we may add to our recourses for troubleshooting.

                                      Thanks Again

                                        Comment

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