Question about JVC TH-M505 System

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Speaker disassembly The magnet and speaker cone are moving inside housing, How can I seperate the housing to stablize the speaker cone?

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  • Billy1135 Mar 05, 2008

    The housing is the problem, how does the screen remove from the housing without damaging, the cone is not damaged, and what I mean by stabalizing the speaker is the cone and magnet which are one are fdlopping around inside the housing and it seems that the bracket which stabalizes it has broken,

  • Billy1135 Mar 06, 2008

    Unfortunately there are no screws, but I will guess that you are correct on the glue issue, thanks very much for your help

    Bill

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2 Answers

I'm going to try to heat it a little with a blow dryer to loosen the glue a little then pry, thanks for your suggestions again

Posted on Mar 06, 2008

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Is the cone damaged..you cannot seperate the cone from the magent without damaging the speaker..what do you mean by stabilize the speaker cone ?

Posted on Mar 05, 2008

  • Sid B
    Sid B Mar 06, 2008

    that whould genererally pull right off ..they are just tabbed in..however in some speakers they are glued so it would not be possible to open the screen without damaging it. Also look at the back of the the speaker box..look for screws...if there are screws then you can safely disassembele the box and put it back together when you are done

  • Sid B
    Sid B Mar 06, 2008

    try to pry it open with the head of a very flat screw driver...very slowly

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How to easily check your speakers and speaker wires


When in doubt about your audio speaker wiring, or if you think that one of your speakers might have stopped working, here is a cheap, accurate way of checking the speaker or the speaker wire. Take a regular 9 volt battery (like those used in smoke alarms) and touch the terminals to both wires of your speakers (disconnect from amp first), if you hear a pop in the speaker, the wires are good, To test individual speakers, touch the battery terminals to the speaker terninals and listen for a pop sound. If you can see the cone of the speaker you can also determine which pole is + and which is - by watching which way the cone moves, If the cone moves out you have the positive + battery terminal on the plus speaker pole. and vice versa. This battery test is safe for you speakers. If you do this kind of audio work, always carry a fresh 9 volt battery in your tool box.

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(Please read the whole thing before opening anything)
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1 Answer

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(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.
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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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