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JVC Sub-woofer trouble - have I checked everything I can?

Discussion in 'Subwoofers' started by itorres, Dec 13, 2002.

  1. itorres

    itorres
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    Have JVC SX-PW22 power sub-woofer (connected to JVC RX-3THBK amp)

    - no sound comes from my sub-woofer
    - Sub-woofer been working fine for few years, although it blew its fuse couple of times at beginning. replaced it with ones included in the package and kept working fine.
    - speaker cable connections are correct
    - led on the sub-woofer power amp comes on. it's green as it should. it acivates automatically on the auto mode or manually too, if I choose it. so fuse is ok and power is good
    - when power amp on sub-woofer activates I hear a slight thud as usual through the speaker, so it seems speaker works.
    - adjusted speaker volume to max and switched crossover frequency to see if it made a difference, no change

    so, I think there may be something wrong with the crossover circuitry and not diverting any signal to the speaker.

    am I missing something to try before spending the big $ at the repair shop?

    thanks, all!

    Ivan
     
  2. Jase

    Jase
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    Hi

    What speaker settings have you selected on the amplifier, Large/Small? And what mode are you testing the sub in, Stereo, Dolby 5.1?
     
  3. itorres

    itorres
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    I have tried all combinations I think.

    This Receiver has Surround On/Off
    Surround Mode - Prologic/3CHLogic/Hall (I use Prologic - for Front, Center and Rear speakers)
    Center Channel Mode - Normal, Wide, Phantom (Normal routes bass to front speakers which go to sub-woofer first)
    Another setting creating different Eq and Delay called SEA - Sound Effect Amplifier

    I don't have a setting for Large/Small, but I assume it sets if you have woofers in your front speakers so as to route the bass differently. I think that is controlled by the center setting on mine.

    Thanks for the help.
     

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