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Magnets and T.V.s

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Old 09-12-2003, 06:51 AM
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I've heard the warnings about this before, but it completely slipped my mind. last night I was assembling my home theatre sub and I placed the driver on the shelf above my TV magnet down (No, I was not thinking).

After I anchored the plate amp, I go to grab the driver and noticed the top portion of the screen is slightly off-colour. - I suddenly realize the error of my actions, and try to correct it. I quickly grab the driver and move it to the floor. As soon as the magnetic field from the sub-woofer leaves, everything on the screen is shades of blue and it doesn't go away (and somehow my wife didn't notice, or at least she didn't comment).

We watch the rest of the news, I finish assembling the woofer and turn off the T.V. This morning - everything returned back to normal.

Can magnets cause permanent damage and I just got off lucky?
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Old 09-12-2003, 09:54 AM
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Yes they can! Usually screens will return to normal. I did wreck a computer monitor a few years back though! I was screwing subs into a box in my bedroom and like a retard I set one of the subs on top of the computer monitor not thinking! And well, let's just say I didn't use that monitor anymore! LOL! I felt really retarded after that one!
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Old 09-12-2003, 12:50 PM
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don't worry dude, most tv's have a de-gauzing automatically. your tv will actually charge up while you watch it and that chip in there takes that charge out of the shadow mask so that your screen doesn't go screwy like that. if you have a sony tv you'll here a boing every time you turn it on. that is it getting rid of any magnetic interference. your tv is just fine. [img]graemlins/thumb.gif[/img]
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Old 09-18-2003, 12:19 PM
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How do you go about shielding a speaker from the tv, I.e If I wanted to make a center channel??
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Old 09-18-2003, 04:09 PM
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Originally posted by Dukk:
You install a 'bucking magnet' and a 'can' over the magnet assembly.
Bucking Magnet riight.... ? explain lol, a can? what kinda of can? just a juice can? lol... fill me in here .. [img]graemlins/dunno.gif[/img]


Thanks
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Old 09-18-2003, 04:15 PM
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Ok I found info about a Bucking Magnet and this actually works well enought to keep the tv safe from "raindbow" effect....
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Old 09-18-2003, 04:50 PM
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Would any store carry the metal/lead whatever it might be in sheets that way u could just line the box with? instead of the bucking magnets etc...
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Old 09-22-2003, 03:34 PM
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I've done that twice, both times the TV returned to normal after a couple of hours.
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