Dell 9150 - Strange Speaker Problem

Discussion in 'Dell' started by Dick Hughes, Apr 6, 2006.

  1. Dick Hughes

    Dick Hughes Guest

    I have a new 9150 that was ordered with the SoundBlaster Audigy2 sound
    card. I am using with it my tried and true Sony SRS-58PC powered
    speakers. I have use these speakers with several SoundBlaster cards,
    most recently with a 4550. These speakers turn on with an audio
    signal. For some reason, they are staying on all the time when
    plugged into the speaker jack of the SoundBlaster Audigy2. Anyone
    know why that would be? What is different about the audio output
    circuitry of the current SoundBlaster cards vs the older ones?

    Note that no sound is coming out of the speakers. Something is just
    keeping the power on as if there were an incoming signal. If I pull
    the plug out of the SoundBlaster, the lights go off.

    Dick Hughes, Apr 6, 2006
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  2. Dick Hughes

    Quaoar Guest

    Can you check the polarity at the speakers? It would be very odd, but
    perhaps the audio polarity is reversed.

    Quaoar, Apr 7, 2006
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  3. Dick Hughes

    Notan Guest

    That should only affect the phase of the speaker(s).

    Notan, Apr 7, 2006
  4. Dick Hughes

    Quaoar Guest

    Not only the phase, but if the speaker auto sensing circuit expects a
    certain polarity to function. As I writ, this would be very strange,
    but many older Sony products did operate with reversed DC polarity.

    Quaoar, Apr 7, 2006
  5. Dick Hughes

    Dick Hughes Guest

    I'll check that out tomorrow. Thanks for the suggestion.

    Dick Hughes, Apr 7, 2006
  6. Dick Hughes

    Quaoar Guest

    One small correction: I should have written that many older Sony
    products operated with reversed polarity from the supplied DC power at
    the jack, i.e., center pin reversed.

    Quaoar, Apr 7, 2006
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