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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: TV generating noise posted by jhrlrd on July 12, 2016 at 10:23:19:
I have a plasma (50" LG) and love the picture.
But it did play havoc with my sound system for the TV, and it took some serious filtering to fix it.
1. AC power line filter on the TV power cord alone, another filter on the stereo as a whole.
2. Physically separating the AC cords from the video and audio signal cables. In your case, make sure the audio cables are as far away (and at right angles if possible where they might need to cross) from any power cords and the video cables.
3. Clamp-on ferrite filters for the AC cords as they exit and enter the TV and receiver.
4. Clamp on ferrite filters on the HDMI signal cables (both ends), as well as the video composite lines. This one cleared up the picture, with blacker blacks and sharper fine detail with less overshoot.
#4 actually did more than I expected, and was the final veil lifted, problems solved.
Jon Risch
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Follow Ups
- Can come from everywhere on the TV - Jon Risch 20:59:39 07/13/16 (1)
- Ferrite clamp-on filter appearance and sources - Jon Risch 21:17:23 07/13/16 (0)
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