I turned on the cable box,then turned on my TV.The TV screen stays blue and there is a message that says no signal.Its a vizio Gallivia.What should i do?

My Vizio Has a Blue Screen But Doesn't Shut Off Troubleshooting your Vizio TV requires that you first identify the source of the problem. A blue screen on your Vizio TV can indicate that you are experiencing a problem with the video input on your TV, while the failure to turn off may indicate that there is a problem with overcharged internal memory or your power capacitors in your TV.

Finding the cause of your Vizio's problems can involve trial and error.
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Check Your Connections The connections leading to and from your Vizio TV may be responsible for your Vizio TV having a blue screen and failing to power down. Tighten the coaxial connections to your TV and firmly press in any HDMI, component or composite video cables connecting to your TV, then check the signal on your TV to see if the blue screen problem resolves itself.

Discharge Your TV's Memory Overcharged internal memory can lock up your Vizio TV and prevent it from changing channels or turning off. To discharge your TV, unplug your TV and press and hold the "Power" button for 30 seconds. Plug the TV back into the electrical outlet after 30 seconds and check to see if the problem persists.
Change Input
The input source connected to your TV may be malfunctioning and preventing your Vizio TV from powering off. The "Input" button on your remote will allow you to select a new input source. Cycle through input sources until you find one that displays an image on your screen and power the TV off. If this method works, you may need to replace the input source preventing your TV from turning on.

Power-Cycle Your Equipment Power-cycling your equipment can solve errors created by devices or with your TV's power supply. To power-cycle your equipment, unplug your TV from the electrical outlet along with any devices connected to your TV. Plug your TV back in and turn it on. Plug in each device, one at a time, and notice if your TV displays a blue screen or has trouble turning off. Repeat this process for each device connected to your TV and replace any devices causing problems with your TV.

Select the input channel for your Fire TV - Turn on your TV and select the input channel for the HDMI port you used to connect your Fire TV. You should then see a loading screen with the Amazon Fire TV logo 4.

Tries unplug the tv and the cable or satalite boxes too.Replug it all back like an hour later.The tv know will reset itself back to the factory setting.The cables or satalites boxes it upgrading it softwares.The tv should have incomming broadcasting signal and work now.Not,call the cables or satalites compannies to replaced those inputs boxes first,have the same problems with those new input cables or satalites boxes.Than the tv,the Tuner signal board have problems and the cause.That the board,where the incomming broadcasting signal cable plug into it.That the tv Tuner signal board.Tries websites Shopjimmy.com,Ebay.com to buy a whloe refurbish Tuner signal board for the replacement.

Are you on the correct Input? Make sure your Cable Box, DSS receiver etc is powered on, then press the "TV/Vid" button or "Input" button until you get a picture. IF you still don't, make sure your cables are connected to the TV & Box. If you still have a problem, post a comment with make and model of cable box. Hope this helps.

Reboot ur DirectTv box.By unplug,replug it and hour later to let the box upgrade it solfware.Go to ur tv menu setup rescan it again for all the channels.It should work now.

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.

Your TV isn't detecting a signal on any input. You can have a bad connecting cable, or a defective source unit, (cable box, satelite reciever, DVD player....). Those are just a couple of possibilities, but a good place to start. Good luck.

If the tuner is bad, changing the mainboard should fix the problem.

Had the same problem. My TV must have been puht onto RGB input. So I plugged my computer in to the RGB on back and turned on the TV. It stayed on. Then switch it back to input of choice

I just spent an hour trying to fix the VIZIO with the same problem. The screen had no picture at all, but could hear the sound perfectly!! But we i figured out the solution! UNPLUG THE CABLE BOX AND LET IT RE-BOOT! and it WORKED!!!!!