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In Reply to: Re: Maginectic Buildup? posted by DHVCD on November 04, 2003 at 19:54:47:
Yes its caused by a huge speaker. I am gonna have to rearrange room, so that I can put speakers farther away. Could the speaker have damaged the TV or ruined quality. Thanks
Follow Ups:
If you move your speakers their stereo effecct could well be compromised.There is another alternative to moving your speakers but it will entail some effort (DIY) & small expense. you could shield the ofending speaker drivers using Texas Instruments Shield Material (available from Percy). This comes in sheet form of varying thicknesses and in 12" widths. TI claims that the material blocks > 95% of both RFI & EMI [Electro Magnatic Interference i.e. magnetic flux). It's the EMI that's causing your problem. The material is very easy to work with using aircraft-type tin snips (serrated cutting jaws that don't slip) to cut to required sizes.
You'll have to open your speaker cabinets to install the shielding. It's most likely only the woofers that are causing the problem (large magnets). Form a tube for each magnet that has a closed end for each woofer and attach it to the speaker basket(RTV cement should work well). It would also help to ground the shields in order to drain off the RFI/EMI.
Happy video'ing !
Hi: It can be fixed, with a Degaussing coil. "In the old days" it would happen and the TV repair man would come by and fix it. Nothing permanent has happened although it is a pain. As suggested, you need to check that your autodegauss works, once you get the speaker moved.
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