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Is there anything that can be done to rescue a CRT monitor which has had a magnet dragged over it ?
I have 3 at the moment which all have purple patches and would obviously hurt anyones eyes if they looked at it long enough. I've tried leaving them unplugged for a month but that hasn't made any difference.
You need to degauss them
I have to do this several times a night at home! My cats have magnets on their collars to open the catflap for them and them are very fond of brushing past my monitor :x
I tried degaussing the monitors before leaving them without power. The degaussing had no effect at all.
Looks like they are permanently damaged then :(
They can be repaired, at a cost.. and it would be much more economical to a) buy new monitors and b) serverely punish the people responsible and issue them with the cost of a new monitor.
I replace our monitors with £15-£20 second user 17" CRTs from a company nearby. They have a load of nice black dell ones in at moment.
We threw one out last week for this and invoiced them £250. Probably mates of the lad we threw out!
We are trying to move away from CRT's here. But we still have the worry of theif of the TFT screens.
pfy says that taking a strong enough magnet (hard disk) and waving it an inch or so above surface of screen can "un-bruise" the monitor sometimes.
Of course, not liability accepted for this advice breaking stuff. Don't try this until you've used all other options.
We have kids turnig around the towers so that they face the edge of the monitors - which has a nice psychadelic effect - need to make sure the source of disturbance is removed as well of course - i'm saying - before degaussing.
I'm sure you can get "degauss guns"..have a word with your local TV shop...I always find our CRTs do it if stored upside down or on their sides.
Yeah, but give them a few days of sitting on there bottom and they are fine again (says he who has about 40 CRTs upside down so they dont fall over..... And you can get a Degaussing Wand, CPC sell them