Behringer DJX 750 No power

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  • smallprint
    Senior Member
    • Nov 2010
    • 86
    • UK
    #1

    Behringer DJX 750 No power

    Hi has anyone got any experience with audio mixers ? In particular Behringer audio equipment ? I have a Behringer DJX 750 mixer which recently died I've opened it up to investigate and the only thing I managed to find was a blown 104M ceramic capacitor C15 which I have replaced with new and still no power to it at all. I read somewhere online in a forum from a google search and found that cap C24 which is a 1000uf 35v could also be the problem. Is there anything else I could have missed.




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    Last edited by smallprint; 07-16-2020, 07:00 AM.
    Tags: None
    • diif
      Badcaps Legend
      • Feb 2014
      • 6978
      • England
      #2
      Re: Behringer DJX 750 No power

      Something caused the capacitor to blow up, check the diodes and the mosfet for shorts.

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: Behringer DJX 750 No power

          Can we see good clear straight shots of the whole top and bottom side of the board. Those ceramic caps look to be snubber caps for those diodes. What is the Voltage rating printed on those ceramic caps?
          Never stop learning
          Basic LCD TV and Monitor troubleshooting guides.
          http://www.badcaps.net/forum/showthr...956#post305956

          Voltage Regulator (LDO) testing:
          http://www.badcaps.net/forum/showthr...999#post300999

          Inverter testing using old CFL:
          http://www.badcaps.net/forum/showthr...er+testing+cfl

          Tear down pictures : Hit the ">" Show Albums and stories" on the left side
          http://s807.photobucket.com/user/budm/library/

          TV Factory reset codes listing:
          http://www.badcaps.net/forum/showthread.php?t=24809

            Comment

            • smallprint
              Senior Member
              • Nov 2010
              • 86
              • UK
              #4
              Re: Behringer DJX 750 No power

              Originally posted by budm
              Can we see good clear straight shots of the whole top and bottom side of the board. Those ceramic caps look to be snubber caps for those diodes. What is the Voltage rating printed on those ceramic caps?
              They are a 104M ceramic cap Budm so far I have replaced that and the 3 1000uf 35v caps and still no joy my next port of call is the transistor 7815 insulated Voltage Regulator KEC KIA7815API

                Comment

                • smallprint
                  Senior Member
                  • Nov 2010
                  • 86
                  • UK
                  #5
                  Re: Behringer DJX 750 No power

                  I'm just hoping it isn't the transformer because Behringer are being no help at all for any replacement parts

                    Comment

                    • adamsky
                      New Member
                      • Dec 2022
                      • 1
                      • USA
                      #6
                      Re: Behringer DJX 750 No power

                      Hey, I have the same issue. Although looks like No caps blown.
                      suspect the transformer is broken. have you gotten a new one from behringer ?

                        Comment

                        • alfatv
                          Badcaps Veteran
                          • Sep 2020
                          • 353
                          • Canada
                          #7
                          Re: Behringer DJX 750 No power

                          1. Check the fuse
                          2. Measure DC resistance of transformer windings
                          3. Measure AC voltage after transformer output.

                            Comment

                            • spiros.p
                              Senior Member
                              • Dec 2020
                              • 89
                              • Greece
                              #8
                              Re: Behringer DJX 750 No power

                              before years i own berry vmx 300 the transformer was broken.i have to find one other type and replaced.original was not posible to found.check if ac comes out from secondary.

                                Comment

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