Question about Vizio VX20L 20 in. LCD TV

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I have hum bars on my televisions just the vizios i have 3 other televisions and they are perfect

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Hum Bars are caused by electrical interference. If you have other equipment hooked to the vizio such as a VCR, try unhooking the VCR and hooking cable directly to the tv bypassing the VCR. If you have a Cable signal amplifier hooked up that also can cause interference if it is going bad. Some tv's can handle the negative interference better than others. You could also try moving another tv into the room where the vizio is and see if that gets hum bars as well. In this situation the process of elimination is the best method. If it goes away using a different tv then it could be the vizio. If a VCR is the problem your best bet it to leave it unhooked. If an amplifier is the issue try it without the amp hooked up. Now with the change over to digital you may not need an amp and can leave it disconnected. If Not you can easily replace the amplifier. If these don't work I would suggest contacting your cable provider so they can properly assess the electrical problem and assist you in fixing the issue before causing and damage to your equipment.

Posted on Jul 10, 2010

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