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Subject: Re: Screen shake
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We had a similar problem in my Department (Biological Sciences at Purdue
University) It turned out that there was a large (about 100 circut/220V)
circuit breaker box on the other side of the wall. We haven't gotten around
to measuring how strong of a magnetic field it was putting out, but our only
cure was to move the monitor as far from that panel as possible. You may
well just have some heavy duty AC wiring in your walls (or transformer boxes
somewhere nearby). If Thomas's suggestions below don't work out, just try
moving your monitor and repositioning your video cable.
Quote off.
I have seen some similar stuff. You should be sure that there are NO
electronic items under, over, or next to your monitor. This includes AC
operated radios, other devices that have transformers in them, even
printers. Even computers without their metal skin on. I don't remember what
device caused my problem, but since I work as an electrical engineer, the
cause was obvious to me. It may seem like magic to those who don't deal
with magnetic fields as part of their normal environment! If you have such
equipment, then move each item away, and see if the problem is solved. If
not, then the other answer--running too close to (or beyond) the monitor's
design capability is probably correct. --doug
..
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