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USB Drive is putting noise on TV?

Hi All,

I have a PVR (something like Tivo) connected to my home theatre system that can connect to an external USB hard disk for storing movies. I bought an external hard drive and connected to my PVR and things are working fine. The only problem is as soon as I connect USB drive (On or Off) to my PVR I see noise lines on my TV. So some how Drive's adaptor (that generate 5v and 12v) is putting noise on everything. Is there anyway that I can put a capacitor somewhere to get rid of that noise?

Thanks in advance,

Homer

Reply to
Homer
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That's my bet...welcome to the world of SMPS's.. Try looping the power (and USB) cords through a ferrite donut/core a few turns...

Reply to
PhattyMo

If the power supply is inside the box, a possible quick fix would be to 'shield' the external box with aluminum foil. Just take out all of the electronic components from the box, and line the insides with a layer of tin foil (using glue or whatnot).

That would be the first thing I would try.

Reply to
Mark

Circa Tue, 31 Jul 2007 06:20:52 -0700 recorded as looks like Homer sounds like:

Try plugging the hard drive into a different outlet than the one powering the television, preferably one on a different circuit.

Try changing the physical location of the devices, perhaps the interference is generated through the air as opposed to through the wires.

The ferrite bead idea is worth a try, they're cheap enough. I wouldn't recommend randomly inserting capacitors into devices and transmission lines.

Reply to
Charlie Siegrist

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