No Signal? How To Check The External Input On Your Tv

Are you experiencing a frustrating moment when your TV displays a ‘no signal’ message? Don’t worry, it’s a common issue that can be resolved with a few simple steps.

In this article, we’ll guide you through how to check the external input on your TV so that you can get back to enjoying your favorite shows and movies.

Firstly, you need to identify the source of the problem. Is it just one device that’s having the issue or are all of your devices unable to connect to your TV? Once you’ve determined the source of the problem, it’s time to move onto the next step.

Whether it’s a loose cable or a setting issue, we’ve got you covered with our step-by-step guide. So, let’s get started!

Identify the Source of the Problem

You’ll need to take a closer look at the back of your TV to figure out where the problem is coming from. Identify which external input is causing the issue by checking the cables and connections. Make sure everything is plugged in correctly and securely.

If you’re using a cable box or streaming device, try unplugging it and plugging it back in. This can sometimes reset the connection and fix the issue.

If you’re still not getting a signal, try switching to a different input and see if that solves the problem.

If none of these steps work, it’s possible that there’s a problem with the TV itself. In this case, you may need to contact a professional for repair or consider replacing the TV altogether. However, following these steps should help you identify whether the issue is with the external input or the TV itself.

Check the Cables

Double-checking the connections is essential to ensure that everything’s hooked up properly and functioning correctly. Sometimes, the reason for no signal on your TV could be as simple as a loose cable.

Check that all cables are properly connected to both the TV and the external device. If the cables aren’t securely plugged in, it can result in a weak signal or no signal at all. Additionally, inspect the cables for any signs of damage. If a cable’s frayed or split, it may cause issues with the signal transmission. Replace any damaged cables to avoid any further problems.

Also, make sure you’re using the correct cables for each device. HDMI cables are commonly used for high-definition devices, while coaxial cables are used for cable or satellite boxes.

If you’ve checked the cables and they’re properly connected and undamaged, try switching out the cables for new ones. Sometimes, cables can become worn out over time and need to be replaced. Use high-quality cables to ensure the best possible signal transmission.

By taking the time to check and replace any faulty cables, you can eliminate them as a possible cause for no signal on your TV and move on to other troubleshooting steps.

Power Cycle Your Devices

Before resorting to more complex troubleshooting steps, it’s important to try power cycling your devices by unplugging them from the power source and plugging them back in. This step can often fix the issue of no signal on your TV.

The reason for this is that power cycling can reset the devices and clear any temporary glitches that may have caused the problem. To power cycle your devices, start by turning off your TV and any external devices connected to it, such as a cable box or gaming console.

Then, unplug each device from the power source. Wait for about 30 seconds before plugging them back in. Start with the power source, then plug in your TV and any external devices, one at a time.

If power cycling your devices doesn’t resolve the issue, there may be a problem with the cables or the external device itself. It’s important to check all cables and connections to ensure they are securely plugged in and not damaged.

If the cables and connections aren’t the problem, try checking the external device’s settings to make sure the correct input source is selected. If none of these steps work, it may be time to seek professional help or consider replacing the device.

Check the Input Settings on Your TV

Make sure your TV is set to the correct source by checking the input settings. This is a common issue when you have multiple devices connected to your TV, and you can easily switch between them by pressing the input or source button on your remote. You can also access the input settings from your TV’s menu.

If you’re not sure which input your device is connected to, look for labels on the back or side of your TV. Common labels include HDMI, VGA, AV, and Component. Once you’ve identified the correct input, select it from the input settings on your TV.

If you’re still not seeing a signal, make sure your device is turned on and connected properly.

In some cases, you may need to change the resolution or other settings on your device to match your TV. This is especially true if you’re using an older device with a newer TV or vice versa. Check the user manual for your device and TV to see if there are any specific settings you need to adjust for compatibility.

By checking and adjusting your TV’s input settings, you can ensure that you’re getting the best possible picture and sound quality from your devices.

Try a Different Input

If you’re still having trouble with your TV not showing any image or sound, it might be worth trying a different input. This can help you determine if the issue is with the external device or the TV itself.

To do this, simply press the source button on your remote and select a different input option. This will allow you to see if your device is connected to that input instead.

Once you’ve selected a different input, wait a few seconds to see if the image or sound appears on your TV. If it does, then the issue is likely with the previous input you were using. You can try switching back to that input and making sure it is connected properly, or you can continue using the new input that is working.

If you still don’t see any image or hear any sound after trying a different input, it might be time to check the cables and connections between your TV and external device. Make sure everything is plugged in securely and double-check that you have selected the correct input on your TV.

If all else fails, it might be worth contacting a professional to help diagnose and fix the issue.

Update Your TV Software

Updating your TV’s software can improve its performance and fix any bugs or glitches that may be causing issues with image or sound. It’s a simple and easy process that can be done in just a few steps.

First, check your TV’s manual or manufacturer’s website to see if there are any software updates available for your specific model. If there are, follow the instructions provided to download and install the update.

Here are four reasons why updating your TV’s software is important:

  1. It can fix any issues you may be experiencing with your TV’s performance, such as freezing or lagging.
  2. It can improve the image and sound quality of your TV, making your viewing experience more enjoyable.
  3. It can add new features and functionalities to your TV, such as new apps or streaming options.
  4. It can improve the security of your TV by fixing any potential vulnerabilities that may have been discovered.

Updating your TV’s software is a simple yet important step in ensuring optimal performance and a better viewing experience. So, take a few minutes to check for any available updates and follow the instructions provided to install them. Your TV will thank you for it!

Contact Customer Support

When you’re struggling with a problem with your television, reaching out to customer support can be a helpful solution. If you’ve tried all the troubleshooting steps and still can’t figure out the issue with the external input, don’t hesitate to contact your TV’s customer support team.

They’re there to help you and are equipped with the knowledge and tools to address any issues you may be experiencing. To contact customer support, check the manual that came with your TV for their contact information.

You can also visit the manufacturer’s website and find their customer support page. Some companies even offer live chat support or a customer support hotline that you can call. Make sure to have your TV’s model number and serial number handy, as they may need this information to assist you.

When you speak with customer support, be sure to explain the problem you’re experiencing in detail. They may ask you to perform some additional troubleshooting steps or even walk you through the solution.

If your TV is still under warranty, they may even be able to send a technician to your home to resolve the issue. Don’t hesitate to reach out for help – that’s what customer support is there for!


So, you’ve tried everything to fix the ‘no signal’ issue on your TV, but nothing seems to work. Don’t worry, there are still a few things you can do to troubleshoot the problem.

First, you need to identify the source of the problem. Is it the TV itself or the external device you’re trying to connect? Checking the cables and power cycling your devices can also help.

Next, make sure the input settings on your TV are correct and try a different input. If all else fails, updating your TV software or contacting customer support might be your best options.

Don’t give up just yet, with a little bit of patience and persistence, you can get your TV up and running again.