Question about Jensen JPS10 Subwoofer

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JPS10 subwoofer capacitor replacement

I need to replace capacitor C103 in the Jensen JPS10 subwoofer. Can anyone identify this component for me, or point me to the schematic? It's a grey plastic rectangular capacitor, apparently without identifying marks. Two similar components are labeled 63V, .18J and 1J88 respectively. All these are on the smaller component board, which seems to be an active cross-over.

many thanks

Martin

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SOURCE: jensen jps10 subwoofer: ******* Noise -

Make sure you have the polarity of the leads correct, ++, --. If you have the leads +-, -+, it may cause the speaker to be "pulled" instead of "pushed" like it is supposed to be. If they are correct, try reversing them anyway to see if that fixes the problem. There's no real harm in reversing the leads, it just won't be as efficient and the power will have to be turned down as to not cause damage. That's another suggestion, try turning down the power, if you have an amp that is overpowered for the sub, you could push it past peak and cause the bottoming out, damaging it forever.

Posted on Dec 19, 2010

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Make sure you have the polarity of the leads correct, ++, --. If you have the leads +-, -+, it may cause the speaker to be "pulled" instead of "pushed" like it is supposed to be. If they are correct, try reversing them anyway to see if that fixes the problem. There's no real harm in reversing the leads, it just won't be as efficient and the power will have to be turned down as to not cause damage. That's another suggestion, try turning down the power, if you have an amp that is overpowered for the sub, you could push it past peak and cause the bottoming out, damaging it forever.

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Jensen jht525


See if any electrolytic filter capacitors are blown (bulged at the top), badly soldered or if they have broken contact pins (legs), a loud hum in the audio suggests there is a non rectified (AC) voltage present which could be caused by a bad or badly connected filter capacitor.

There may as well be other reasons for the hum (a bad earth connection,a loosely plugged or badly soldered audio or internal connector, bad rectifier bridge or diodes, as the case may be, bad solder joints on any component, possibly other components that are faulty).

I just suggested some of more common possibilities.

Hope you can fix it.

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