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monitors fluctuate

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I recently moved my client to another location in a different building using the same network configuration and equipment.The problem seems to
be on one wall all the monitors fluctuate constantly, but stop when the fluorescent lights are turned offin that area.`Any suggestions would be greatly appreciated

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monitors fluctuate

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Obviously you are experiencing an electromagnetic filed thier. You can try degaussing the monitors but I doubt it will help. It is probable that you will need to insulate the wall better or put up some sort of metal sheeting.

monitors fluctuate

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monitors fluctuate

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3 possabilities;

The power line for the lights runs through that wall. Mu-metal sheilding is what you will need to eliminate the problem.

The monitors are sharing a circuit with the lamps, and you are near the power handling ability of the line. Try using an extension cord to run a monitor off of a diffeent circuit to test this.

There is one or more bad ballests in the lights.
Have the room quiet, and listen for a louder than usual hum from one light fixture.
You can also check ifany ballest is getting hotter than the others.

Chas

monitors fluctuate

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monitors fluctuate

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If u r using Windows OS, try to reset your monitor freequency. One option is to choose monitor performence to “Optimal”. For this do as follows:-
START->SETTINGS->CONTROL PANEL->DISPLAY->SETTINGS->ADVANCED->ADAPTER->REFRESH RATE-> Now here u can select monitor frequency, but my suggection is first select “Optimal” and see the result after re-starting.

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monitors fluctuate

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Hi,

Please check if your monitor is to much close on speakers…Magnet it the one of the cause just guessing….for a good suggestion please check the fresh rate of the monitor maybe the video card is not compatible. Hope this helps.

Cheers,

Mel Arquiza
Home Page Design
http://hpd.welcome.to

monitors fluctuate

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monitors fluctuate

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well, it’s obviously the flouresent lamp is the problem.
Well, try to change the lamp, or maybe it’s to short to the user.
or, maybe try to place the monitor elsewhere to avoid electric magnetic field there.
It could be a unknown signal that goto the monitor.

Brgds,
Mulianto

monitors fluctuate

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monitors fluctuate

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Sounds like it might be bad ground, overloaded outlets, etc. If the monitor worked fine somewhere else, then this is most likely the problem. If you put in a UPS (which isolates and filters the power) and it still does it, then you have a problem with grounding of the flourescent lights. You will need an electrician to check out the wiring.

Invest in a good electrical wiring checker. The kind that has the lights which will tell you if the ground is good, inverted wiring, etc.

Make sure there is a ferrous core on the monitor cord (that round thing on the VGA cable going to the monitor). This is supposed to filter out some RF frequencies.

monitors fluctuate

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monitors fluctuate

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Get an electrician to check the circuits on the
wall. They are probably on the same phase in
the breaker panel as the lights. If that is the
case have him move the outlet circuit to a
different phase.

Now before the people that don’t readwell
start tearing apart my answer. I said on the
same phase not the same circuit.

In an electricial panel there are either 2 or 3
phases. Going down the circuit breakers the
phases for a 3 phase panel are 123 123 123.
So if you have anoisy circuit on 1. The noise is
transfered to every breaker on the 1 phase.
Same on a 2 phase panel. 12 12 12.

The electrician can discuss options if this is
not possible.

Motors, fluorecent lights, dimmers, ect will
cause these type of problems.

Good Luck Lee

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