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I have a Polkadio sub that keeps blowing fuses. Model # psw 10

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If the fuse always blown, there is a shorted parts in the power supply section look for this short.For this symptom ,check the bridge diode there,if good ;then the regulator transistor ;then the start up capacitor.

hope this may help;
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Posted on Jul 18, 2008


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JBL PSW-D112 Speaker fuse blow immediately after replaced

The fuse is designed to protect the circuit and prevent fire. When a fuse blows it is because it is getting to much current through it.
In some cases it could be because you replaced the fuse with one that did not meet the specs of the required fuse, there are different types of fuses and you should always replace with exactly the same type of fuse.

Do not replace with a higher Amp fuse, you could end up frying the amp at least. It's not a safe thing to do since there is an off chance of fire from using the wrong fuse.

If you have the right type of fuse installed and it is still blowing, then refer the unit to a qualified service center for repair, or look for a new replacement Amp.


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