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Humming from speakers

My speakers humm but once the dab is disconnected the system is ok the system is 4 seperates connecting with a computer like ide cable and only 1 power suply.
hitachi ax-m140

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  • 4 more comments 
  • packard3545 Feb 10, 2008

    WHEN THE DAB IS DISCONECTED I HAVE NO PROBLEM

    it only humms when dab is connected 1 power suply for all 4 stations connected by a ribbon cable ?

  • packard3545 Feb 10, 2008

    confused bad ground wires ?

  • packard3545 Feb 10, 2008

    did not know if was worth taking to repair seems like this is a common problem with this model

  • packard3545 Feb 10, 2008

    speakers are humming all the time however if i disconnect dab it is ok they even humm when listerning to cd (do not have tobe using dab for them to humm)

  • packard3545 Feb 10, 2008

    yes even moved to mate house and still have same issue

  • packard3545 Feb 10, 2008

    ill have to see if i can get it modded or sell it ?

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  • 440 Answers

Bad grounds wires usally will do this

Posted on Feb 10, 2008

  • 2 more comments 
  • nick helpap
    nick helpap Feb 10, 2008

    not sure then

  • nick helpap
    nick helpap Feb 10, 2008

    thought u were talking speakers humming

  • nick helpap
    nick helpap Feb 10, 2008

    did u cheak wires heavey gage to from amp to speeakes red on red blakc on black ect pluged into a good grounded power strip

  • nick helpap
    nick helpap Feb 10, 2008

    ya like u said might just be that unit doing it

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Page 22 in the Manual details the required input to be selected dependent on the connection type.

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Front left speaker stopped working. I use the system with my computer (full volume on computer), and usually half volume on the speaker. I've had the speaker for a few months now. I looked the wiring to...


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Got error 10 and dont know what to do


from REalMacoi your problem seems to be related with the AdaptIQ failing to do an active equalisation. HAve you connected the AdaptIq sense headphones on the AUX (left and right coz it will still fail if only one cable is connected) Also make sure tha the sense headphone cable is in the correct color orientation and none is connected to the black jack just below the red one. Try this procedure and if the system still shows error 10 do the following in sequence...

1. Turn off the media center via the"ALL OFF" button in the tray (no DVD disc inside the tray)
2. Turn off the bass module by the power switch underneath the bass module (certain versions may not apply)
3. Unplug the power adaptor of the media center and remove the power adaptor connection from the wall socket.
4. Unplug the bass module (if this has not yet been done
5. Disconnect all speaker wires (satellite speakers I mean)
6. Disconnet the data cable linking the bass module and the media center
7. Allow 10seconds to pass
After 10seconds then connect the following again in this sequence

1. Connect the media center and the bass module data cable first
2. Connect the satellite speaker cables.
3. Connect the media center adaptor (DO NOT TURN ON YET!)
4. Lastly connect the bass module power cable (DO NOT TURN ON YET!)

Once verything is connected, press power "ON" button o nthe RF remote and the media center should turn on. Only the you should switch the bass module power "ON" so that a fresh handshake is achieved.

This ERROR 10 occurs when either the ADAPTIQ process is interrrupted, the data calbe link between the bass module and the media center is loose or when the power connection is interrupted.

If all still fails, then there is a problem with the DSP board of the bass module and would require servicing.

I do hope I was able to help you

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1 Answer

Protect


sounds like one or more speaker cables are either shorting or not connecting...I know you have checked all cables, but if it was defo ok in the other room, theres not much more that can be wrong. (i'm assuming that you turned the device off before dicsonnecting everything).

If you are using the same speakers, did a speaker get damaged in transit?

you can test your speaker cables and speakers with a basic Ohm meter..disconnect each speaker connection from the unit and test for resistance..should read similar ohms to what your speakers are (usually 6-12 ohms in home hifi). if any connection gives a significantly higher or lower reading, thats that culprit.

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2 Answers

Broken bass unit


(Please read the whole thing before opening anything)
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You can do one of 2 things:
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If nothing is seperated, check the input jacks from the speaker box frame to the speaker itself. Loose connections are common for the crimp on kind.
Also a good idea: if you really (I mean really) want bass and you have no neighbors within a 1/4 mile radius of your house, have a friend who is getting rid of his car woofers to hook you up an AC outlet from the power source, and then use the red and white cables going into the amp to come from your receiver. I've seen this and it's great when watching a movie or playing games. Surrounding people hate it. (Wonder why?)

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1 Answer

No sound from base speaker


(Please read the whole thing before opening anything)
Loose connections inside either the receiver or the subwoofer. Open the subwoofer case (the screen should pop off, if there is no screen there is usually some hidden screws somewhere) and see if there are any wires that have been separated. The problem with subwoofers (more common in car audio) is that they will vibrate so much that when you have something meant to have a lot of bass without the subwoofer and then you add the subwoofer to it, it's overpowering it which causes it to vibrate harder; seperating the cord that attaches the fabric of the speaker itself to the metal harness.
You can do one of 2 things:
1) Souder the wires back together using a heat sink.
2) Get allagator clips, cut them down pretty short and just extend the length of the wires a little bit giving it more bouncing room. Caution with this because if you dont cover the clips and they touch the metal frame, you will have no sound. Electric tape them once they're on.
If nothing is seperated, check the input jacks from the speaker box frame to the speaker itself. Loose connections are common for the crimp on kind.
Also a good idea: if you really (I mean really) want bass and you have no neighbors within a 1/4 mile radius of your house, have a friend who is getting rid of his car woofers to hook you up an AC outlet from the power source, and then use the red and white cables going into the amp to come from your receiver. I've seen this and it's great when watching a movie or playing games. Surrounding people hate it. (Wonder why?)

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1 Answer

Code 10


Hi, your problem seems to be related with the AdaptIQ failing to do an active equalisation. HAve you connected the AdaptIq sense headphones on the AUX (left and right coz it will still fail if only one cable is connected) Also make sure tha the sense headphone cable is in the correct color orientation and none is connected to the black jack just below the red one. Try this procedure and if the system still shows error 10 do the following in sequence...

1. Turn off the media center via the"ALL OFF" button in the tray (no DVD disc inside the tray)
2. Turn off the bass module by the power switch underneath the bass module (certain versions may not apply)
3. Unplug the power adaptor of the media center and remove the power adaptor connection from the wall socket.
4. Unplug the bass module (if this has not yet been done
5. Disconnect all speaker wires (satellite speakers I mean)
6. Disconnet the data cable linking the bass module and the media center
7. Allow 10seconds to pass
After 10seconds then connect the following again in this sequence

1. Connect the media center and the bass module data cable first
2. Connect the satellite speaker cables.
3. Connect the media center adaptor (DO NOT TURN ON YET!)
4. Lastly connect the bass module power cable (DO NOT TURN ON YET!)

Once verything is connected, press power "ON" button o nthe RF remote and the media center should turn on. Only the you should switch the bass module power "ON" so that a fresh handshake is achieved.

This ERROR 10 occurs when either the ADAPTIQ process is interrrupted, the data calbe link between the bass module and the media center is loose or when the power connection is interrupted.

If all still fails, then there is a problem with the DSP board of the bass module and would require servicing.

I do hope I was able to help you

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1 Answer

I have a loud humm in my bose lifestyle 28 system


Turn on your bose so you can hear it hum. Go to the back of your cable box and remove the co ax cable connected to "cable in". If the humming stops, the sheilding on your cable is no longer grounded. Purchase MPAV800 or similar surge protector to run cable line through it and get it grounded.

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1 Answer

Speaker system


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