Question about MTX SW2 Subwoofer

4 Answers

Blown fuse?? no sound from sub. noticed fuse was blown. when i replace fuse and plug into the wall it blows right awway. what gives? this sub is less than a year old.

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  • gidel75 Feb 22, 2009

    The red light is on but there is no sound, and the fuse seems to
    be ok. On the "auto or on" position makes no difference. It just will
    not work. I tried a different sub and that one works.?? Any suggestions

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4 Answers

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There is an underlying cause for the fuse to blow. if something shorts out you would rather a 40 cent peice goes then the unit causing a fire. disassembly is require... look for obvious burnt parts first.

Robert

Posted on Sep 01, 2008

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Call MTX speaker department at 1-800-556-2888 and order the amplifier. It cost 123.00 plus shipping. i love this subwoofer and the same thing happened to me.

Posted on Feb 10, 2009

Thanks for the reply. im pretty sure there is something really bad here. i know its not the smart thing to do, but i was desperate so i took one of the bad fuses and wrapped it in aliuminum foil! it made a loud humming noise. i think the amp has gone bad time to replace. subwoofer in questions is a MTX sw2 12" cant find any on the net that has replacement amp. if any ideas please reply thanks.

Posted on Sep 02, 2008

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  • 34 Answers

I suggest replaceing the fuse once again with one with higher resistance(a smaller one could be sensitive to high current power) or, probably a very good thing would be to try a different wall plug!

Posted on Sep 01, 2008

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I have a gale 3070 sub woofer. When I connect it to the power with no audio connection being made, the inner fuses blow. can anybody help


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You should open it up and look for a short. Usually, an exposed wire is touching metal. Wrap the wire with electrical tape and look for a ground wires that are loose. That will blow fuses too.

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It sounds like your audio amplifer has a short (probably the out put transistors or module). This should not be an expensive epair.
To check your speaker you can use an ohm meter. First, pull of one of the two wires that connects at the speaker. You should read 4 to 8 Ohms. Also you will hear a little pop through the speaker as you touch the wire. You can also use a 9 volt battery in the same way.
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It could be that the subwoofer is blowing the fuse because the one you installed was not slow blow.

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Hi,

The fuse blows when the current that passes through it are beyond its rating. This could be brought about by excessive consumption of the load, in this case the amplifier powering the sub-woofer.

Repairs would involve component level and require that you be familiar with electronic components and circuitry, use of a DVM and a soldering iron. Often it is just the finals that needs to be replaced. Of course we cannot discount the possibility of other components or section such as the power supply.

The smoke indicates something heating up such as a resistor or diode or a capacitor.

Should you be uncomfortable opening the unit and doing a DIY (do-it-yourself), then perhaps you need to seek the services of a qualified professional.

Should the downtime and cost of repair be no longer economically reasonable, purchase of a new unit might save you further trouble.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Feb 23, 2008 | Onkyo SKW-200 Subwoofer

1 Answer

Subwoofer


Repeated fuse blowing generally indicates a blown power supply, or blown output stages or both. One thing to do is be sure that you have replaced the fuse with the correct type. A T stamped into the metal of the fuse near the rating, indicates sloblo or Time Lag fuse. A fast blo fuse, may work once, or more times, but will never replace a sloblo fuse in this type if unit. Good Luck, hope this info helps, don't hesitate to hit me back here for more help :)

regards
Graeme

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