does anyone knows how to fix a monitor that has been ruined with a magnet ??

Question

my sister pointed a strong magnet at my monitor and ruined it partcially, so if anyone knows a way fo fixing it please tell me about it !! thanks alot

Answer 1

DEGAUSSING YOUR PICTURE TUBE
This page deals with a common complaint in many television sets, computer monitors, and coin-operated video games. It effects all models and usually has all of these symptoms:

The colors appear to change in different parts of the screen.
Rainbow patterns appear in one or more areas of the screen.
The colors are not bright and seem 'washed out'.
Rotating the entire unit may make the color blotches move around on the screen.

And the most common complaint:

Your kid put one of his magnetic toys against the TV screen "Because it looks COOL!" and left a permanent area of discoloration on the picture.

WHAT CAUSES THIS TO HAPPEN?
All cathode ray (CRT) picture tubes have a metal screen called the 'shadow mask' mounted just behind the inside surface of the tube. Besides providing the focus aperture for the three color guns, the job of the mask is to nullify the effect of the Earth's magnetic field on the electrons flying through it. If the mask itself becomes magnetized, the color purity and focus of the image get screwed up. With the exception of only the newest plasma sets and LED screens, every computer monitor, TV set and Video Game has a CRT picture tube which is susceptible to these localized magnetic fields.

HOW DO I CORRECT THIS PROBLEM?
The 'shadow mask' needs to be demagnetized using a degaussing coil, which is nothing more than a 110 volt 60 cycle AC coil inside of a safe plastic shield.

The magnetic field generated by the coil is dense enough to penetrate the face of the picture tube and effect the mask inside.

DOESN'T MY MONITOR HAVE A BUILT-IN DEGAUSSER?
Good question! Yes, it does! But it only comes on for a few seconds each time the set is turned on cold. The field that the built-in coil generates is not of sufficient strength to wipe really strong magnetism from localized areas of the mask. What is required is a hand-held coil that you can manipulate directly over the affected areas of the screen.

INSTRUCTIONS FOR DEGAUSSING THE PICTURE TUBE:
The next bit is part magic and part dance...

Hold the coil out in front of you and switch it on. Approach the middle of the picture tube as you swing the coil around in a small circle. Wipe it across the face of the tube in slowly widening circles. Take about five circles to get out to the outside perimeter of the screen and back away from the screen slowly as you continue to make big circles. When you have backed up a couple of feet and you are no longer effecting the picture, shut the coil off.

That's all there is to it. All video games, TV sets and computer monitors can benefit from this procedure! Quite often, it corrects the only real problem with the set.

you can buy your own degaussing coil or you can take the monitor into a shop and have them use one on your monitor. here's a link on where to pick one up or you may be able to find one in an electronics parts store:

http://www.twobits.com/degauss.html

Answer 2

Try Degaussing it. Usually it's an adjustment on the monitor.

"Degaussing monitors
Today the most common use of degaussing is in CRT-based computer monitors. For example, many monitors use a metal plate near the front of the tube to focus the electron beams from the back. This plate, the shadow mask, can pick up strong external fields and from that point produce discoloration on the display.

To combat this, CRTs add a copper coil wrapped around the front of the display, known as the degaussing coil. Tubes without an internal coil can be degaussed using an external hand held version. Internal degaussing coils in CRTs are generally much weaker than external degaussing coils, since a better degaussing coil takes up more space. A degauss causes a magnetic field inside the tube to oscillate rapidly, with decreasing amplitude. This leaves the shadow mask with a small and somewhat randomized field, removing the discoloration.


A degauss in progressThe high current surge which takes place during this automatic degauss is the cause of the audible 'thunk' which can be heard (and felt) when televisions and CRT computer monitors are switched on. Visually, this causes the image to shake dramatically for a second or so. Many televisions and monitors automatically degauss their picture tube when switched on, before an image has been displayed.

In most commercial equipment the current surge to the degauss coil is regulated by a simple PTC thermistor device which initially has a low resistance but quickly changes to a high resistance due to the heating effect of the current flow. Such devices are designed for a one-off transition from cold to hot at power up, so 'experimenting' with the degauss effect by repeatedly switching the device on and off is not recommended as it may cause this component to fail. The effect will also be weaker, since the PTC hasn't had time to cool off."

Answer 3

Most modern monitors fix themselves. You have to turn the power to the monitor on and off several times for the automatic degaussing circuit to remove a serious defect, but it should get a bit better each time. If after 20 power cycles that doesn't work, you'd need a degaussing coil, or a visit to the store as someone else suggested.

Answer 4

hi
My name is Gurdeep

don't worry . if u monitor is under warranty call the company people.

if it is out of warranty try some simple steps

1. find the deguass button in the monitors control menu
2. if u do not find the degauss button then also need not to worry
keep u r monitor disconected from all power supplies .
wait for few hours or wait for whole night . it should
automaticlly get fixed with correct colours .

Answer 5

bring up the settings on the monitor and use the icon with the Magnet and a line drawn through it. Should fix er up. and it will save you 22.95 from "gerng t bst buy" or whatever the other person said.

Answer 6

You'll need to degauss it. Some monitors have a degausser built in. If your monitor has its own settings, check them for a "degauss" option.

If your monitor does not have a built-in degausser, check EBay.

Answer 7

this is rather hard to fix, ive heard of a device called a magic wand(yeah i know), which has a full length magnet the size of your screen u wave across and it fixes that. or u could try and use the on screen display to deguasse.
this might fix it..

hope this helps
Paultech
Remember to Rate.

Answer 8

Better you should buy a new monitor & keep your sister in control that not to do these type of things.

Answer 9

hello
what your have to do now is take that monitor in to the pc ,store for them to restet it coz the
magnet .has done the colors in they can reset it
i paid $22,95 to have a monitor fix
best buy fix it

Answer 10

Its dead forever. Sorry.