TSGL: 60 Hz Hum from Laptop?

[Russell W. Coover]

You'll have to find some way to "ground" it. Attach a wire to its chassis
and connect it to the center screw of a wall socket might solve your
problem. Beware: Do not connect it to any of the wall socket connections
unless you know which one goes to ground.


Russ Coover

-----Original Message-----
From: list-bounces at tsgserver.com [mailto:list-bounces at tsgserver.com] On
Behalf Of Geoff Glave
Sent: Sunday, April 06, 2008 1:19 PM
To: list at tsgserver.com
Subject: TSGL: 60 Hz Hum from Laptop?


Hey All,

As part of our entertainment system we've got an old Dell laptop plugged
into our amplifier.  It's on our wireless home network and we use it to play
MP3s and listen to 'internet radio.'

However, it's got an annoying problem.  When the power supply is plugged
into the laptop (i.e. most of the time) you hear an annoying 60-hertz 'hum'
over both right and left amplified channels.  If you unplug the power supply
from the back of the laptop, the hum goes away.  I've tried running a ground
to some of the external metal on the laptop, but instead of the hum getting
better (as expected) it got worse.

Any suggestions as to how to make our home entertainment system work better?
How can we get rid of this 60 hertz hum?

Thanks in advance.

Cheers,
Geoff in Vancouver, Canada

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