Home Forums Product Discussion & Questions BeoSound Beosound 9000 Audio Problem

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  • #46150
    NPC59
    BRONZE Member

      Hello, I am new here. My BS 9000 has a fault on one of the stereo channels. I noticed it when connecting through the Aux port. Only one of the input channels works. Is this a known issue and is there a solution?

      #46151
      matador
      Moderator
        • Paris France

        Check adapter wiring?

        #46152
        NPC59
        BRONZE Member

          Can you please explain? I discovered the problem when I checked the input theough the Aux port. And when I play a CD and adjust the balance it is clear that only one channel is getting through. The strange thing is that the channel plays on both speakers and when I dial down the balance both speakers go quiet.

          #46153
          Guy
          Moderator
            • Warwickshire, UK

            Check the Left/Right switches on the speakers are correct.

            #46154
            matador
            Moderator
              • Paris France

              Can you please explain?

              I understood that you have a balance problem only when playin an AUX.IN source.
              Then DIN adapters sold on the market are not always correctly wired, sometime AUX.IN, sometimes AUX.OUT, sometimes exotic combinations of both: better make your wires yourself or talk to a specialist!

              Now if the problem is there even when playing a CD that’s another story. Then I would for from more simple to the more complicated:

              1-Check with an headphone.
              2-Check the line in switch of your Beolabs as suggested by Guy above.
              3-Check the Powerlink cables by inverting them from one speaker to another.
              4-when you’re certain the wire is not the problem, check the Beolabs by inverting them again or using the line in socket if they have one.

              If no one of this works, then it may be an internal problem with your 9000 and it’s beyond my knowledge.

              Good luck.

              #46155
              matador
              Moderator
                • Paris France

                The strange thing is that the channel plays on both speakers and when I dial down the balance both speakers go quiet.

                Ok, I read too fast again. Then just do as Guy told!

                Sorry.

                #46156
                NPC59
                BRONZE Member

                  Thanks for the hint. There is no sound coming out when the switches are set to „R“. Guess that means the right channel is defekt. Is there a fuse that I could check?

                  #46157
                  Guy
                  Moderator
                    • Warwickshire, UK

                    Thanks for the hint. There is no sound coming out when the switches are set to „R“. Guess that means the right channel is defekt. Is there a fuse that I could check?

                    You need to check point 1, 3 and 4 of Matador’s suggestions first and report back!

                    #46158
                    NPC59
                    BRONZE Member

                      It doesn’t appear to be a cable issue. When I switch the speakers to „L“ and turn the volume up I can hear the channel faintly. Looks like it might be in the amp.

                      #46159
                      Guy
                      Moderator
                        • Warwickshire, UK

                        It doesn’t appear to be a cable issue. When I switch the speakers to „L“ and turn the volume up I can hear the channel faintly. Looks like it might be in the amp.

                        Have you tried headphones? If they work L and R correctly you cannot yet rule out cable problems.

                        How are the speakers connected? Does each have it’s own PL cable or are they daisy chained?

                        #46160
                        NPC59
                        BRONZE Member

                          Done all the checks including the headphones. Inly get one channel on my cheap ear buds.

                          #46161
                          NPC59
                          BRONZE Member

                            And each speaker has its own PL cable.

                            #46162
                            Guy
                            Moderator
                              • Warwickshire, UK

                              One other thing – try the headphones whilst both Powerlink speakers are unplugged (from the BeoSystem PL sockets).

                              #46163
                              NPC59
                              BRONZE Member

                                Didn’t think of that. Unfortunately I still only hear one channel ?

                                #46164
                                Guy
                                Moderator
                                  • Warwickshire, UK

                                  Didn’t think of that. Unfortunately I still only hear one channel

                                  I should have said earlier, when you did that headphone test, was the AUX connection disconnected also? If not, try headphones with both PL and Aux disconnected.

                                  If you have a masterlink connection, try unplugging that as well. Check there is no dirt/debris in the ML socket (a small wire could short out the Right channel).

                                  If a headphone channel is still missing then I think there is an internal problem. As far as I know there’s no simple fix (such as fuses) so you may need to look for a specialist.

                                  #46165
                                  NPC59
                                  BRONZE Member

                                    Genius mate! I disconnected the AUX and I have both channels again. I‘ll now have to see if I can continue using the AUX to input from my airport express though.

                                    Many thanks, Guy

                                    #46166
                                    Guy
                                    Moderator
                                      • Warwickshire, UK

                                      Great news – thanks for letting us know!

                                      To be honest we should have solved this a bit quicker and Matador’s first ‘check adapter wiring’ was effectively the solution. I suspect that there is a short between pin 4 (right line out) and 2 (gnd) in the adaptor DIN plug. Mind you, if your aux cable is just a input (to the DIN end) then pins 1 and 4 should not be connected.

                                      EDIT: Added Aux pin diagram below just to be clear – the image shown is when viewing the pins in the plug:  (and I doubt that your adaptor has pins 6 and 7 as they are not needed)

                                      socket

                                      #46167
                                      NPC59
                                      BRONZE Member

                                        Right. And I‘ve learnt quite a bit about my Beosound in the process. Great forum that I hope I won’t need again. I‘m going to get a new Aux adapter and will let y‘all know if it works.

                                        #58926
                                        Phil Buckle
                                        BRONZE Member

                                          Hi, i too have the same issue, bs9000 mk2 & bl8000 & bg3500 connected to aux using cables supplied by Steve Marriott

                                          Bl8000 connected to bs9000 using individual pl cables

                                          no sound out of left channel on either speaker regardless of cable/switch connection permutations

                                          i do however have correct L & R channels through headphones from both cd and turntable with all cables connected.

                                           

                                          is this likley a cable/connection problem or an internal problem with the bs9000?

                                           

                                          any help very much appreciated!

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