I believe it is listed as TV input control in the Fios menu under TV settings. I have a Roku Premier hooked to a new Vizio TV. It's been great, when I shut it off using the cable universal remote, "LOCK" with 3 or 4 boxes showed up on the screen and now I can't get it to stay on. The streaming player will simply lose its connection with your WiFi network, perhaps just for a few seconds, but long enough to interrupt your program or movie. You can use this “TV turning off” as a troubleshooting guide. So why won't the tv, and why won't it take my password and connect unless I reset it? Beyond that you may need Repairs. The methods to fix or troubleshoot why your TV will turn off all by itself will work on Samsung, Vizio, Mitsubishi, LG, SONY, Panasonic, HiSense, Hitachi, Element, Magnavox, Sanyo, and all other TV models. I followed some videos from you tube but they show burnt up parts, my tv doesn’t have anything burnt. Thanks. Won’t turn on or off, vizio logo flashing , black screen, 47” tv When I turn on power the vizio logo flashes for a few seconds, then is steady, then goes off and after a … The company will soon my paying a $2.2 million fine to … I kept it unplugged overnight, tried other outlets, unplugged and replugged all the cables. The VIZIO name comes up and then shuts right off. If you have a Vizio smart TV, now would be a great time to disconnect it from the internet. If you are trying to turn off TV by turning off Fios box, or trying to turn off box by turning off TV you need to have CEC, or device control enabled on BOTH devices, and they need to be hooked up with HDMI cable. To help you do that, here are some potential reasons why your Vizio TV won’t turn on and how you can resolve them. In order for the tv to turn off, I have to unplug the Roku entirely. Any suggestions to get my tv to stay powered off while the Roku is connected? When I turn on power, it comes on with the Vizio logo, then shuts itself off after about 3 seconds. Make sure your plugs are also firmly seated in the wall. TV is less than 3 years old. ... out to repair it they want to replace it with a refurbished tv off the same model. Trie … read more The tv will not stay turned off for more than 10 seconds when the Roku is connected. If you can’t turn on your Vizio TV using a remote, there might not be anything wrong with the TV at … The different reasons are listed by category below. I have a 22″ vizio that after turning it on, it works but if I turn it off and later try to turn it on, it won’t come on, led lights up white but that is it. Get shopping advice from experts, friends and the community! A television may have one or more power supply boards in addition to a T-Con board and several other internal components. Repeated attempts have same results. Cause of the Vizio TV Black Screen There are several root causes for a television screen suddenly going out, but the most common cause is a failure in one of the power supply boards. Check the Remote. Michelle, your problem is not uncommon with Vizio Smart TVs, or any Smart TV, plus Smart TV devices such as Blu-ray players, Roku, Apple TV and Amazon Fire TV. Disable Power Saving Mode if it is running for a while and shuts down due to in activity it could also be your cable or satellite TV Box. Went to turn my Vizio TV on tonight, and it won't stay on.