Question about JBL PB10 Subwoofer

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Blown fuse on JBL Pwerbass PB10 Speaker

I have a JBL subwoofer model PB10. I had a power surge at my house and now the 1.25A slo-blow fuse has blown. I have replaced it with a 1A slo-blow fuse and it blows. Any suggestions outside of sending it to a repair shop?

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  • Anonymous Mar 23, 2009

    wher do i finf a 3ga type "T" fuse for my jbl pb10

  • agap Mar 24, 2009

    My JBL subwoofer has lost power completely. I do not know where the fuse is so that maybe I can replace it.

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3 Suggested Answers

  • 5 Answers

SOURCE: loud humming buzzing sound coming from subwoofer

make sure you have the speaker connection right if you do then it is a ground problem try plugging it in a different outlet

Posted on Dec 16, 2008

blueextc3221
  • 15935 Answers

SOURCE: JBL PB10 subwoofer, it makes a loud burp noise when it comes on.

In the industry - It is called "Turn-On Thump".

There are some manufacturers that eliminate components like noise filters on enry level lines to save money.

There is no way to lessen this noise without ripping the amplifier apart and having a technical knowledge of the way amplifiers work. It would involve hard-wiring a slow charge capacitor in the turn on line so it gradually builds power instead of getting it all at once.

Thanks for using FixYa - a FixYa rating is appreciated!!

Posted on Feb 10, 2009

budmrtn
  • 11361 Answers

SOURCE: JBL PB10 subwoofer sounds distorted and lights on the front flash

More likely to be the Class D power amp module, but you should look through the service manual to make sure all the parts are installed correctly. My PB10 AMP module went out and you cannot get one anymore.
http://manuals.harman.com/JBL/HOM/Service%20Manual/PB10%20sm.pdf

Posted on Nov 10, 2009

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Jbl pb10 subwoofer will not come on, that is the two lights in the front will not come even though it is plugged-in


1/ Check the power outlet, dont laugh i have been caught by this one
2/ Is the power cord removable (2 or 3 pin) if so then try another cord.
3/ If not check to see if there is a power switch in the vicinity of the cord
I know it sounds stupid however it does happen.
4/ Check to see if there is a fuse in the same area.
5/ If not you will have to remove the cover back, front, or bottom
to gain acess to the internal power supply, there should be a fuse in
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Fuse blows


Both 3 or 4 amp slow blow fuses are suitable replacements for the 3.125 amp subwoofer fuse.

It could be that the subwoofer is blowing the fuse because the one you installed was not slow blow.

But, more likely is the subwoofer has a short in the power supply which is causing the fuse to blow.

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These fuses are most likely 3 Amp fuses. Please note that if the replacements blow as well, that there is a problem within the amp section that will require repair.

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1 Answer

Fuse blows


Presuming you're referring to the circuit breaker in your house, it's probably because you have too many items on that circuit. Your best bet would be to find another power outlet that is on a different circuit, and plug some things in over there.

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1 Answer

Thump at the time of shutoff


The amplifier in the sub as with any other amplifier has a capacitor in it. Essentially a battery that holds a charge. When you trun things off such as subs or amps with a powerstrip instead of the intended on off button, the power supply has been cut, but the capacitor is still energizing the unit. So it catches the noise in the line.

Mar 07, 2008 | JBL PB10 Subwoofer

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