Question about Vizio E421VA 42 in. LCD TV
When the set powers up the vizio picture shows on screen but then when it fully powers up and I hit my uverse menu, I can see the very top but can't see anything or read anything below as it is all black with sometimes vertical "interference type" lines. The sticker in the back says Mfg date Oct 2010 serial LTNIBCL4200972
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Posted on Jan 02, 2017
SOURCE: I have a Vizio LCD
Hi, vertical lines when the television is on may be related to issues with the television's screen resolution. Resolutions set higher than 1280 by 720 can create visual disturbances on the screen. You can reset the resolution through the control panel's display settings menu. This should correct the issue immediately, although you may need to power the television off and then on again in some cases..
Posted on Mar 26, 2011
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