Vizio L37 I have a two year old Vizio, my son hooked up a XBOX to the tv and the next day I have no picture, There is power to the unit. The screen is a medium color black. I can view the Vizio menu screen, input mode in upper right side of the screen. I can reset to factory setting. I can view the volumn bar. The other Vizio that I have when you turn off your receiver goes sky blue. This one does not. XBOX was setup to AV2. Now on that AV2 input, the screen is black, you can hear audio, close caption works, The Direct TV receiver works, i hooked other TV to it. What is wrong? Keith

Sounds like a backlight problem. Next time the picture goes out, try using a strong light next to the screen. Do you see a faint image? That means your lamps have turned off. May be bad power supply to them, an inverter board problem or a bad lamp. Unless you are a tech, it's a repair shop issue.

you cann not hook an antenna and cable to a splitter together and expect it to work
the only way that will work , if your tv had two tunners Try doing a scan with cable
only on the cable setting

There is no reason that any video player with RCA video/connections cannot be used with your new TV. However, you will not experience any increase in definition, even if your TV is High Definition.
If you used a Component connection from your DVD player (three cables for Video), all that is required is that your TV have Component cable inputs.

I had the same thing just happen and I used the following instructions from the Vizio Website for "humming sound" on tv and it worked. My sound is now working!!!!

1- Power off TV

2- Unplug TV from outlet

3- Press and hold in the power button on the TV for 30 seconds (while it is unplugged from the wall)

4- Release the power button

5- Plug in the TV into a different outlet

6- Power the TV back on.

Reset the TV settings.

I have a Vizio 37' tv with an Xbox 360 and it works fine. I am a Cable repair tech, hook up the xbox using the composit cable first RCA these are the red white and yellow cable to a non high def input on the tv, if that works check the settings in the xbox, there is a screen that will allow or enable HD quality pictures. Also check the Xbox cable itself. at the Y there is a small swiitch that goes from componet to composit you can only get HD if you use the Red Blue Green cables, then make sure you have the TV input set to that input other wise you will have only a blue screen. If that does not work, Hell, call the cable company if you are a customer, they should send someone out to show you how to connect it, and they might not even charge you, we don't, but I work for a smaller company, not ComCast or Cox, If you want to email me you can kml39@yahoo.com, good luck

The backlight is powered by its own supply (although it may receive input from the main supply) and it sounds like the main supply or one of its outputs has failed disabling the video and sound processing.  

HELLO to the guy saying hello ... I am on cable and have the same freezing problem ... so take the attitude and shove it!!!!!

my vixio l37 will not turn on neither with the remote nor the power unit ,need some solutions

Sounds like you switch the tv from pal to ntc or around.

Repeat / press WIDE button on remote = select a different
format.............................T.