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Degaussing issue - color changes with physical movement

July 27 2005 at 7:36 PM
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  (Login screaminz28)

I have a GDM-W900, and the bottom left of the screen looks as if it has been magnetized. I don't have a degaussing coil yet, but I will soon. Curious though - when the monitor is angled up, the screen looks fine. Angle it back down, and the color in that corner goes completely out of whack. I have found it looks best a normal viewing angle if you angle it all the way down, degauss it (using the integrated degaussing) and then put it at eye level viewing. Any ideas on something to check? I have confirmed that it is not the cable as it works on a different PC, and not the PC as it happens regardless of the computer it is connected to. Thanks!

Also, thanks to everyone that posted info on the Dell P1110, it fixed my brightness problems perfectly!

Brian

 
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AuthorReply

(Login repairs-online)

Degaussing issue - color changes with physical movement

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July 28 2005, 4:10 AM 

Hello Brian,

When the monitor is angled-up as you put it may look ok, the reason maybe the magnetic field of the earth.

Also, make sure that the monitor is not close to strong magnetic fields when sitting upright. In additiion, try to re-potision that part of the degaussing coil close to the left hand bottom corner, if the coil is say a bit out of the way it may not demagnetise that part of the tube as it should be.

An alternative method to degaussing a monitor or TV is with a speaker, I know it not as good as a degaussing coil but is the next best thing.

Use a red raster when demagnetizing a tube.


Sincerely

 
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Richard B
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Re: Degaussing issue - color changes with physical movement

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July 28 2005, 5:53 AM 

Hi check things like the table has not got metal legs which have become magnetised, speakers, desk top magnetic items like paper clip holders etc.

Rich

 
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Re: Degaussing issue - color changes with physical movement

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July 30 2005, 12:01 AM 

Thanks for the replies, guys. I do have a small speaker that when I place in the bottom right corner, it makes the screen look normal. However, when pulled away, it goes back to looking bad. Still haven't been able to find a degaussing coil in town. A friend has a cassette tape eraser, which is basically an iron looking device that puts out a strong magnetic field. Would this possibly work, or would it cause more harm than good? I thought the idea behind the degaussing coil is simply to spread out the magnetism, but I wasn't sure. This puts out a strong magnetic field in one centralized spot. Think it will hurt it?

Thanks again!

Brian

 
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Richard B
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Re: Degaussing issue - color changes with physical movement

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July 30 2005, 5:40 AM 

Hi if you remove the speaker.

Turn of the monitor and leave off for 1/2 an hour at minimum.

Then turn back on you may need to do this 3 or 4 times to clear the magnetic bias caused by the speaker.

Leave the speakers well away.

Rich

 
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