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Topic: Help with laptop noise issue |
Jimmy Gibson
From:
Cornwall, England
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Posted 30 Nov 2006 10:29 am |
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HELP...I have just got a laptop pc,it works great though my HI FI System,but when i put it through my PA,then it makes a terrible buzzing noise,it is so loud i can`t play my CD`s ect,but what is strange to me is if i dissconect the mains adapter the noise stops any help into why it should do this,and how or if can i cure this problem? would be very welcome thanks in advance.
Jimmy. |
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Jack Stoner
From:
Kansas City, MO
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Posted 30 Nov 2006 10:39 am
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It's the standard "ground loop hum" issue. The differnce in AC ground potential between the laptop and PA. I suspect if you run the laptop on battery the hum will be gone.
I don't know about the UK mains but in the US, if we remove the ground from one device the ground loop goes away. |
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Jimmy Gibson
From:
Cornwall, England
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Posted 30 Nov 2006 11:05 am
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Thanks Jack,i took trhe earth of the plug brilliant,worked great no more noise only the music,thanks so much God bless.
Jimmy. |
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Andy Sandoval
From:
Bakersfield, California, USA
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Posted 30 Nov 2006 1:12 pm
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| I had that same exact problem and just put one of those three to two prong outlet adapters on the computer cable and got a nice quiet sound. |
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