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Monitor screen is shaking a little bit

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9 replies

by flores

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my monitor screen is a little bit shaking when our office airconditioning turns on. Is there a way to prevent this? Any help is greatly appreciated. Thank you very much.

9 replies

by mrafrohead

How close is the monitor to the Air Conditioner??? Sounds like it might be putting off a magnetic field... If it is close to the A/C, you should move the whole system to a different location as to prevent the magnetic field from entering your computers work space.

Although if your computer is a ways away, ie. in another room, then I don't know what to tell you...

mrafrohead

by flores

The A/C is in the ceiling which is about 17 feet from the system. I'll try what you suggested. Thanks a lot.

by sdraney

The monitor shaking is most likely caused by a magnetic disturbance as mentioned before...but there could be another reason.

You said the monitor only shakes when the AC unit is on. That could also be caused by a high power drain causing your monitor to paint a distorted or wobbling image.
I would use a multimeter on the circuit to see if there's a distinct power drop when the unit is on.
If you don't have a multimeter you might ask around. Someone in every office seems to have one. Use a "true RMS" multimeter if one's available and watch the readout before, during and after the AC unit operates.

Why all the fuss? Because the monitor is a cheap part compared to a computer. And I'll bet yours is on the same circuit/surge protector as the monitor. If this is the case, you won't know if the computer is taking power lag/surge damage until it quits.

Also, remember to switch out your surge protectors every 6-12 months since they do wear out (better them than the PC) protecting your system from power anomalies.

Thanks for letting me share my two cents...
Samuel T. Draney
President/owner
Integrations... STAT!

by bbainb

I think you'll find that the monitor is in close proximity to a compressor which is probably hooked to the air conditioning system. The result is a wobbling monitor image. I have a large number of clients who experience this problem with pop machines on the same circuit. You should also investigate to insure that no refrigerators, pop machines etc are on the same circuit as it will produce this result.

Good luck

BB

by flores

Samuel,

Moving the computer into another location worked. But there's one thing that I notice which will be the caused of the problem too. When I connected the speakers and plug it in the same surge protector, the monitor starts to vibrate again.I took the speakers out completely just to solve the problem. Thanks a lot. Can I e-mail you directly if I come up into any problems again? Thanks again.

by mishratron

I must call into question to things
the qulity of EMI shielding in your monitor and the line quality of your building. Sounds like either

A. Your circuits can not take ANY pull
B. Your Monitor's EMI shielding is next to nonexistant

or C:
your speakers are bigger then my stero's at home
;)

solutions
a: Move speakers plug to a different line orinstall a UPS for your station that can handle a larger pull.
b: Buy a new monitor with better shielding (ie higher qaulity)

c: Trade?

by pesk

Having read all the responses to your problem, this sounds like too much hassle for a very minor problem. Nowadays, a TFT 15 or 17" monitor costs very little compared to the amount of money, or time that will be spent trying to sort out a problem that goes back almost 100 years. Upgrade is almost always a way out, cheaper and reliable.

by bdavis4139

HI, My first thought was to measure the AC power to the monitor with the Air Conditioner off ... and then measure it when the Air Conditioner was on. See if it is causing a voltage sag to the monitor. I have seen many monitors jiggle and wiggle when their power line voltage approached their lowest operating limit. Happy Holidays Big Don :)

by flores

Thank you guys for the solutions. Right now, the user is very happy from where he's sitting. I had him sit next to a girl. :) Thanks again.

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