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No power to control unit

Turned on subwoofer, checked for power (unit hummed). Control unit power button glowed red for one half second, then noting. Removed 15 pin cable, re-thightened. Nothing. Tried powering up with remote. Nothing. Checked fuse on subwoofer. Good. Turned everything off, reconnected. Nothing.

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Basically your service did not add anything I had not tried already. I had to send the product back.

I would like a refund.

Posted on Apr 12, 2008

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Why does my HTS-20 powered subwoofer make a low hum when plugged in, even turned off and not connected to the receiver and a louder hum when the subwoofer power is turned on?


I suspect the amplifier is damaged. This is not an easy repair to do unless you are well versed in audio electronics. I would recommend a repair shop to look at the subwoofer amplifier.

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When I turn the volume control on my home powered subwoofer, it makes a humming sound, then it stop working


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Hello
Just buy one PHILIPS CL 034 universal remote control Duraband is listed it its codes. Codes are:-

.......... 0520 0115 0317
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Direct Code Entry

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My Polk PSW 303 subwoofer emits a hum when plugged in and powered off. When the unit is turned on the hum gets louder. At this point the unit is useless. Does anyone know what could be causing this?


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Best of luck

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1 Answer

The power fuse blows as soon as the unit is plugged in


There is a problem with the amplifier within the sub. Many of these units never completely turn off. They are often set to automatically startup when a signal is detected. This may be the case here. The loud hum as a defect in the output amp section. At this point you probably have a blown amp section. The "protection" for this is to cause a dead short that will open up the fuse. This unit will require service. It is unlikely that any service info is availabel to the general public either.

The fix could be simple, but without seeing the unit, I can not state that for sure.

Keep us posted.
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Gerhard Weber.

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1 Answer

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1 Answer

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I had the same problem. It is a loose conection on the print. The Amp unit goes into failsafe mode. You can check the Rc control. You are only alowed to turn it on and off. No signal regulating.
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I experienced one leg on a transistor tha had broken.
Good look

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