Question about Speakers & Subwoofers

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Sony SA-WMSP87 Active Sub -- No sound, but can still turn on/off

Hi,

I have an active (powered) subwoofer that came with my Sonyhome theater in a box system. I am not sure what the home theatersystem kit model number is any more, but the model number of thesubwoofer is SA-WMSP87. Just this past weekend, the subwoofer stoppedproducing any more sound. When plugged into the electric outlet, I canstill turn on the subwoofer when the power button is pressed. Just nosound comes out. I swapped the RCA from the A/V receiver to thesubwoofer, and still no sound. I also borrowed a similar Sony poweredsubwoofer from a friend and connected this to my A/V receiver to makesure it's not the A/V receiver or the wire.

What could be wrong? Please, any help would be greatly appreciated.

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  • 2 more comments 
  • Anonymous Jan 24, 2009

    I have the same problem, exactly as described.

  • templemans Jan 28, 2009

    I have an active (powered) subwoofer that came with my Sonyhome theater in a box system. I am not sure what the home theatersystem kit model number is any more, but the model number of thesubwoofer is SA-WMSP87. Just this past weekend, the subwoofer stoppedproducing any more sound. When plugged into the electric outlet, I canstill turn on the subwoofer when the power button is pressed. Just nosound comes out. I swapped the RCA from the A/V receiver to thesubwoofer, and still no sound. it worked great for years

  • brattchow Feb 22, 2009

    Same problem here

  • cbcpete Apr 17, 2014

    check the fusible resistors R403 and r 404 (10 ohms fusible resistors 1/2 watt) and also R 314 (1 ohm fusible resistor)

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  • 15 Answers

Replace R404.... Good luck !!!!

Posted on Feb 03, 2011

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