Question about Vizio GV42L 42 in. LCD Television

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When i turn on y Vizio LCD TV theres a blue screen that says no

Signal and the TV then turns itself back off

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Your TV is probably in RGB mode which means its looking for a computer signal. Plug a computer into your TV and then it will stay on. Then you can change it back to TV mode.

Posted on Feb 08, 2009

  • Sheldon Beck Aug 10, 2013

    Absolutely was the issue. Hooked up my laptop to the TV RGB input and bingo, laptop screen was on the TV. I then went to the input button and was now able to scroll to the input for the cable signal and all is good.

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Pull the batteries out of the remote control and try turning the set on using the set buttons on the side. Our remote control was causing this problem without any buttons being touched.

Posted on Nov 26, 2011

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Hey bbendure, I have a similar/same same problem! My model is a GV42L.
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Is this the same problem you see?

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The tv had blue screen briefly showing "no signal" then turns off. ... and I am getting the same blue screen-no signal.


If your television is displaying a blue screen or no signal message and then turning off, your TV may be at an inactive input. Here's how you can get back to watching your TV:
1. Powering on your TV and press the INPUT button on the VIZIO remote control repeatedly until a picture re-appears.
2. If this does not work, try again but press the button slower this time.

I got this off the vizio website.

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2 Answers

TV says lost signal and turns itself off


Unplug the TV from Wall, wait a bit and plug back in. Should be reset.

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