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    Incredibly loud hum/sizzle.

    Discussion in 'ASUS Gaming Notebook Forum' started by Credge, Jul 19, 2011.

  1. Credge

    Credge Newbie

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    So, my G73Jh has had some problems recently. A few months back a fan decided to crap out on me. No harm done, I replaced it. Now, I'm getting some intense hum/sizzle type of sound whenever I hook it up to anything that puts out sound.

    If I plug in headphones it's fine. If I use a USB DI box, mixer, or anything of the sort, and then send sound out to an amplifier I get the hum/sizzle. If I plug the laptop's headphone out to a mixers or amplifiers input, I get the intense hum/sizzle

    Also, if I hook up an amplifier via USB to play sound from my laptop through external speakers (using my G-Dec 3 as a make-shift sound monitor, for example) also creates this hum/sizzle.

    This did not happen before.

    What fixes this is unplugging the power from my laptop.

    The problem is that my laptops battery life would be too short for what I'm using it for for that to be an option.

    Anyone have any ideas?
     
    Credge, Jul 19, 2011
    #1
  2. gammite

    gammite Notebook Geek

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    U have a grounding issue. Some wire is likely out of place.
     
    gammite, Jul 19, 2011
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  3. FlyingFalcon

    FlyingFalcon Notebook Evangelist

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    Yes. It sounds like a grounding issue. Go through the electricals again.
     
    FlyingFalcon, Jul 19, 2011
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  4. Chastity

    Chastity Company Representative

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    You're creating a grounding loop. If you have a UPS about, you can experiment by plugging into the battery backup side of it, which should act as a line isolator.
     
    Chastity, Jul 19, 2011
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  5. Hrogi

    Hrogi Notebook Consultant

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    Who replaced your fans.

    YOu may want to go back and have them check there work..
     
    Hrogi, Jul 19, 2011
    #5