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Humming noise but no sound

It is attached to a braille display Alva and JAWS program for the blind. after another ill qualified tech person tried to install duxbury on her computer which I am not sure is the cause. I checked her connections to make sure nothing was unplugged I think it is a short in the wiring what do you think?

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Re: humming noise but no sound

It not a short but it is 60Hz hum coming from the a loose connection to ground (not properly grounded) check your power strip for proper ground, 60HZ hum is the culpurit here.

Posted on Sep 21, 2007

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Is it plugged in with a 3.5 millimeter jack? If it is, pull it out of the computer and press you thumb on the tip, if no humming noise comes out, your speakers are probably blown.

However, if a humming noise does come out. Please check to make sure the volume on the computer is turned up/unmuted, the software's volume is turned up/unmuted, your sound card driver is installed (Right-Click "My Computer" -> left click on properties -> Click on the Hardware tab -> click on "Device Manager" -> Click the "+" next to "Sound, video and game controllers" and make sure there is no Red "X"'s or yellow "!"'s.

If you do get a hum, and you do have everything set up right in Windows, try a different pair of speakers or head phones. Your sound card might be fried.

Also, make sure you're plugging the speakers into the correct port on the computer (It's usually a washed out green port"

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