Question about Altec Lansing VS4121 Speaker

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How to open the subwoofer housing to change the fuse

Hi! recently my ALTEC LANCING VS4121 stopped working all of a sudden. Even the power LED on the right satellite is not glowing up. I think its the fuse or the power adapter/transformer inside the subwoofer case that has blown up. I can mend this on my own but can't get any clue how to open up the woofer casing. Its all sealed from evrywhere. Can't get the power circuit outside. Experts please help fixing it.

Thanks and Regards
Amit Mula

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On the back unscrew all the screws (there should be 8 in the plastic square around the jacks... and then undo the four that are in the wooden back) then pull out the plastic square, it will take a decent amount of force, try prying with a flat head screw driver. Once you have that out, you should be able to access what you need inside.

Posted on Jul 23, 2010

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  • Noel adriano
    Noel adriano Apr 14, 2014

    hi dead! how about on right speaker how to open the case?

  • Noel adriano
    Noel adriano Apr 14, 2014

    hi dead! how about on right speaker how to open the case?

  • Noel adriano
    Noel adriano Apr 14, 2014

    my problem is when I turned max the volume the sounds dead when I lower the volume the sounds cam back! Please help

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I think that some wirings inside the main woofer or the tray holding it might have loosed. It could be the speakers were accidentally dropped or anything.
You can bring it to a local store Best Buy, Staples, etc. have it checked by one of them technicians or to see if it can be put back to it's place. I'm no speakers expert but that's the only reason I could think of.
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