Re: HUM sound got solved
- From: "M.I.5¾" <no.one@xxxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 27 May 2008 11:32:58 +0100
"dkb" <veshno@xxxxxxxxx> wrote in message
news:%23uWzulOvIHA.4476@xxxxxxxxxxxxxxxxxxxxxxx
dkb wrote:
I have Samsung 26" monitor cum TV and I get a continuous Humming sound
from its speakers (and it was not there previously). When I minimize the
window the sound gets reduced. Tried to lower the volume nothing happens.
Even tried to keep 'No Sounds' in the sound scheme in the sounds and
audio devices properties---but failed. I want silence. Could it be
achieved? Please guide.
dkb
The HUM got vanished with the help of yet another SAMSUNG Engineer who
came to see the problem today evening. He said that the TV is stereo and
the audio cable provided by SAMSUNG is also stereo, while as the sound
hole in the back of the PC is mono. He replaced the stereo cable with his
mono cable and the HUM vanished. With the help of all of you I was in a
position to tell the engineer that removing the audio-cable provided by
SAMSUNG removes the HUM and that might have given the Engineer an idea to
change the cable.
Replying RobertVA the TV is new one and less than three months old and
everything is enclosed in a plastic cabinet. However there are four peg
type metal 2" length pieces in the back of the cabinet that are used for
wall hanging of the PC and it is that metal peg that I did grounding of
the power supply of the PC and the computer. Whether I was right in doing
the grounding or not I do not know. Anyways.
Thanks again for all the suggestions.
I sounds like you had what is known as an "earth loop". These can be rather
subtle or plain obvious, but they can cause unwanted hum. In your case, I
would suggest that the pair of screens connected together at both ends of
the cable caused your hum. Some earth loops can be serious enough to
actually destroy equipment, though this is, fortunately, not a common
occurence. It usually requires one item in the chain to have an internal
oscillator.
.
- References:
- HUM sound
- From: dkb
- HUM sound got solved
- From: dkb
- HUM sound
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