Xerox DC12 does not power on

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  • JimmyB
    Technician

    50+ Posts
    • Jun 2008
    • 77
    #1

    Xerox DC12 does not power on

    hi evrerybody
    i have trouble with one Xerox DC12:

    machine worked ok and turned OFF by power switch, after few hours when switched ON she does not work.
    When switch power ON, only relays on back sound and green light (power saving) goes ON. Display is OFF, no any sounds from machine.

    tryed with change IOT assy , but no change. (green led on IOT CPU does not light)
    checked fuses ......

    i think some POWER boards is faulty or some connector is loosen...

    any supposition?
    Tags: back, change, connections, dc12, display, fuses, light, power, power issue, power save, power supply, power supply board, shorting, stuck, switch, symptoms, trouble, xerox
    • bojans
      Service Manager

      Site Contributor
      1,000+ Posts
      • Feb 2008
      • 1313
      #2
      It's F3 fuse.

        Comment

        • JimmyB
          Technician

          50+ Posts
          • Jun 2008
          • 77
          #3
          F3 is ok, all fuses is OK. checked 3 times

            Comment

            • bojans
              Service Manager

              Site Contributor
              1,000+ Posts
              • Feb 2008
              • 1313
              #4
              F3 fuse is located on the Distribution PWB. Usually it blows up.
              I had this problem last night. The fuse didn't blow up, just reinserted it, and everything was working.

                Comment

                • JimmyB
                  Technician

                  50+ Posts
                  • Jun 2008
                  • 77
                  #5
                  on the back there is 5 fuses on Distribution PWB, 4 on Drive PWB and 1 on Tray PWB. all is OK.

                  there is another problem, but what is ..........
                  Last edited by JimmyB; 12-05-2010, 05:23 PM.

                    Comment

                    • bojans
                      Service Manager

                      Site Contributor
                      1,000+ Posts
                      • Feb 2008
                      • 1313
                      #6
                      Just checked Eureka>
                      Loose pin connections at PJ45 on the Distribution PW. Tighten female side of PJ45 using meter test probe or appropriate tool. You want to ensure a good connection is made between the two plugs.

                      If it doesn't help replace LVPS

                        Comment

                        • JustManuals
                          Field Supervisor

                          5,000+ Posts
                          • Jan 2006
                          • 9838
                          #7
                          This Parts & Service manual can now be purchased for $11.77 and downloaded immediately after payment from The Internet's largest collection of manuals


                          Paul@justmanuals.com

                            Comment

                            • maich4s
                              Technician

                              50+ Posts
                              • Mar 2009
                              • 86
                              #8
                              hi,try changing the 3set of iot board at once,i had this prolem and upon changing the 3 boards all was fine but you need the pws to set the serial numbers since its obvious you will receive that error msg

                                Comment

                                • davidj7
                                  Service Manager

                                  Site Contributor
                                  1,000+ Posts
                                  • Jan 2009
                                  • 1107
                                  #9
                                  there is a power supply board which causes this If i think the name is right its A1 power supply . I dont have any documentation on this machine to help you more. I threw all out with my last DC12 4 years back.

                                  The board can be seen when you open the bottom cover. Its the size of 3/4th of an A4 sheet of paper. Check that
                                  a machine is only as good as your tech : source:screwtape ; the scary one

                                    Comment

                                    • Milo Wilson
                                      Senior Tech

                                      500+ Posts
                                      • Feb 2009
                                      • 502
                                      #10
                                      Originally posted by davidj7
                                      there is a power supply board which causes this If i think the name is right its A1 power supply . I dont have any documentation on this machine to help you more. I threw all out with my last DC12 4 years back.

                                      The board can be seen when you open the bottom cover. Its the size of 3/4th of an A4 sheet of paper. Check that
                                      david7 is right. Usually the power supply goes bad from either fuser oil shorting it out or just buildup of crap on it. One of the main symptoms is the machine is stuck in sleep mode and can't get out.

                                        Comment

                                        • maich4s
                                          Technician

                                          50+ Posts
                                          • Mar 2009
                                          • 86
                                          #11
                                          hello,Jimmy B.did u ever resolve your xerox dc12 power issue?

                                            Comment

                                            • JimmyB
                                              Technician

                                              50+ Posts
                                              • Jun 2008
                                              • 77
                                              #12
                                              The problem was in Control panel module.

                                              look in SM for: Power Save and LED RAP

                                                Comment

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