42 in lcd vizio "no signal"

could be a faulty aerial wire or plug. would check any wire were you get the signal from.

The problem is the main digital board. It does not have a reset button.

if using a box it may be normal but not nice, I would suspect the set is a bit slow reacting to signal change. I remember some nasty JVC sets that when going up or down a channel the screen would blank for about two seconds and come on, normal since all those had that feature(no channel surfing)>

It does not have any input connected. Without any input, the TV switches off.

Hey bbendure, I have a similar/same same problem! My model is a GV42L.
It has a blue screen that says no signal t, then it turns itself off in about 20 seconds.
Is this the same problem you see?

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.

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

Just try to reset so picture will back to normal again, some LCD TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the LCD TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the LCD TV power button for five seconds.
4. Plug the LCD TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the LCD TV is responding again.
6. Turn off the LCD TV and reconnect the devices.
7. Turn on the LCD TV.

Hope it may help you;

Regards;
VOTIT

if the TV have a no signal sign which means most of the important part is missing. Try checking your connections. The best way is to hook up a dvd player using AV input (the yellow, red and white). make sure that you turn the device on and whatever input you connected the device to is selected. if your TV is a P50HDM model, the TV will shut itself off after a short period without and input connected.

Me too. Anybody out there...please help.