As with most technology, Vizio TVs will have at least one issue over their lifetime, including the input not working. If you are experiencing issues with your Vizio TV’s input, it is likely you can resolve these issues yourself. This article aims to provide a number of simple solutions to try before you consider paying for repairs.
If your Vizio TV input is not working, it’s likely because of a loose or damaged cable connection. The top cause of this issue is a faulty HDMI cable or port. To fix this, try swapping the HDMI cable with a known working one or plugging the cable into a different HDMI port on your TV. You can also try resetting your TV to its default settings or power cycling it by unplugging it from the power source for a few minutes. If the issue persists, contact Vizio customer support for further assistance.
Another common reason for a Vizio TV input not working is that the TV and device settings are incompatible. This may also trigger the ‘Auto Detect’ function and cause the input channel to change randomly. A potential fix is to perform a hard reset or update the TV’s firmware1
I will explain these issues and solutions in more detail below. I have also included general troubleshooting tips that will fix most issues with your Vizio TV.
Vizio TV Input Not Working
The safest and fix for most problems with your Vizio TV is to perform a hard reset or update the TV’s firmware. You can also cycle through each problem below to find other solutions.
If nothing else is working, a factory reset will restore the TV to its original settings. You can find how to perform these general troubleshooting tips below.
Step 1: Turn off the TV.
Step 2: Turn off and unplug all connected devices.
Step 3: Unplug the TV from the power.
Step 4: Press the ‘Power’ button on the TV for 30 seconds.
Step 5: Wait another 10 minutes before plugging the TV in again.
Step 6: Turn the TV on.
This process will clear any errors in the TV’s memory and will not remove any of your saved settings or downloaded content.
Update the Firmware
Step 1: Press the ‘Menu’ button on the remote.
Step 2: Navigate to System > Check for Updates.
Step 3: If an update is available, confirm you would like to update.
The latest firmware will contain fixes for any bugs in the previous firmware. Therefore, keeping your TV up to date will help resolve unexplained issues.
Step 1: Press the ‘Menu’ button on the remote.
Step 2: Navigate to System > Reset & Admin
Step 3: Select ‘Reset to Factory Defaults’
Step 4: Enter your TV passcode, or the default code ‘0000’.
Step 5: Select ‘Reset’ to confirm the factory reset.
Step 6: Wait for the TV to restart completely.
This will delete all your saved settings and downloaded content, so only perform a factory reset as a last resort.
Vizio TV Can’t Change Input
Normally, you can change the input on a Vizio TV by pressing the ‘Input’ button on the remote, navigating to the input you would like to use and pressing the ‘Ok’ button. If nothing happens when you press this button, it is likely that your remote is not working. Problems with the remote can include the following.
· The infrared signal is blocked by something between the remote and the TV.
· The batteries need to be replaced.
· The ‘Input’ button is not working.
You can also change the input by pressing the button on the back of the TV. Holding this button down will turn the TV off, but simply pressing it will cycle through the input channels. If the button works, this confirms that it is the remote that is the problem.
It is easy to change the batteries and clear a path for the remote signal, but if the button is not working, you may need to reset the remote.
This can be done by removing the batteries, pressing each button at least once to drain the power, and re-inserting the batteries. It is also worth pressing the ‘Input’ button several times while the batteries are out to dislodge any debris that might be stuck under the button.
Another possibility is that you are using a universal remote that has not been programmed to change the input of the TV. You should be able to find the setup for your individual remote in the instruction manual.
One example of this is when you are using a DirecTV remote. You need to hold the ‘Mute’ and ‘Select’ button while in ‘TV’ mode, until the LED flashes twice. Then you need to enter the code ‘960’ to either enable or disable the ‘Input’ button.
Vizio TV Change Inputs by Itself / Vizio TV Keep Switching Inputs
You can try performing a factory reset on the TV to stop it from changing the input on its own, but it may also be a fault in the remote, as mentioned above. Specifically, the ‘Input’ button may be stuck, or the remote may be malfunctioning. Either way, resetting the remote, as mentioned above, should help resolve this issue.
It may also be the TV’s ‘Auto Detect’ function. This function will automatically change the input channel to any newly detected input. This means that any loose cables will cause the device to continually connect/disconnect from the TV, causing the TV to switch to that input every time.
Pressing the ‘Input’ button should stop the auto detect function. However, if you ensure all cables are secure and there is not dust in the ports that may affect the connection, this function should not cause you any trouble.
Vizio TV Says No Input Signal
There are a number of reasons why your TV may be giving you the ‘No Signal’ message. This message normally will appear when there is no device plugged into that particular input, or if you have not tuned your satellite TV. Below are a number of things to try if you are getting this message.
· Try changing the input channel. You may have the wrong input selected for your device.
· Make sure the cable connecting your device to the TV is not loose or faulty. You should also try a different port in case it is the port that doesn’t work.
· Check the display settings on your device. They may be preventing the video signal from being sent across. For example, make sure your laptop is ‘duplicating’ or ‘projecting’ the screen.
· Make sure your cable/satellite TV has been tuned. You can find the instructions for this in the instruction manual for the set-top box.
· Try performing a hard reset, firmware update or factory reset on the TV, as mentioned above.
Vizio TV Won’t Recognize Input
If your Vizio TV won’t recognize your input device, refer to the solutions listed above under ‘Vizio TV Says No Input Signal’. However, another possibility is that the video signal is incompatible with your TV.
An incompatible signal usually relates to the resolution of the display. The Vizio TV will usually accept 480p, 720p or 1080p resolutions. However, the most common are the 720p and 1080p, which are the 1280×720 and 1920×1080 screen displays, respectively. Try changing the resolutions of both the TV and the device, but they should match one another.
Vizio TV Component Input Not Working
The TV component input may not work if the cable is faulty or if the cables are plugged into the wrong ports. A component cable is made up of a red, green and blue connection. These should be plugged into the matching colored port.
There is a known issue where DVD players that use composite cables (red, white and yellow) are not compatible with the Vizio TV. Users have found that purchasing a component cable (red, green and blue) and using that instead has solved this issue.
Vizio TV Input Keeps Scrolling
Vizio TV users have reported an unusual issue with their TVs where the input menu continually scrolls. This seems to occur in the Fall/Winter months. It would appear that the expansion/contraction of the TV’s components are affecting the input button on the TV, causing it to get stuck.
This seems to happen in the Fall/Winter months when the TV is in cooler conditions. For this reason, most people will find that their TVs will begin working again after they have been on for five minutes and warmed up.
This is a fault that cannot be fixed without looking at the circuit board of the TV. If it is within warranty, you can call Vizio support for a repair or replacement. If not, you can contact a local technician to try to repair the area around the ‘Input’ button.
Vizio TV Won’t Stay on Input
If your TV will not stay on the input, changing to different input channels while you are using it, refer to the solutions mentioned above under ‘Vizio TV Change Inputs by Itself / Vizio TV Keep Switching Inputs’.
ReadyToDIY is the owner of this article. This post was published on June 3, 2021.