Onn TV Black Screen (With Sound/Without Sound) – Quick Fix

Imagine this: You’re ready to unwind after a long day with your favorite show on your Onn TV. But instead of the vibrant display you were expecting, you’re faced with a dreaded Onn TV black screen.

This scenario can be doubly frustrating if you can still hear sound but can’t see any visuals. But don’t fret! This comprehensive guide is here to provide you with various quick fixes for both black screen issues: with sound and without.

The Onn TV black screen problem can occur in two main forms: a completely black screen without any sound, and a black screen where sound is still audible, sometimes referred to as the Onn TV black screen of death.

The first step in solving a problem is understanding it. The black screen issue on your Onn TV could be due to a multitude of reasons. It could be a fleeting software glitch that’s preventing your Onn Roku TV from displaying images.

In other scenarios, it could be hinting at a deeper problem, such as an issue with the backlighting system of the TV. Other potential culprits could be incorrect settings or a poor cable connection.

Reason Cause Fix
Power Issue Faulty power connection or malfunctioning power supply Power cycle the TV or check/replace power cables
Faulty Cables Loose or damaged cables Check and secure/replace cables
Incorrect Input Settings TV set to the wrong input source Check and adjust input settings
Remote Control Issues Malfunctioning remote control or drained batteries Check remote control functionality and replace batteries if necessary
Sleep Timer Activation Sleep timer setting causing the TV to turn off automatically Disable the sleep timer in the TV settings
Backlight Failure Faulty backlight preventing display Contact Onn support for possible backlight replacement

Want to know more about this issue? Check out this informative guide on Onn TV problems.

Onn TV Black Screen (With Sound/Without Sound)

Quick Fix 1: Power Cycling the Onn TV

A simple yet often effective fix for the Onn TV black screen issue, particularly when caused by software glitches, is power cycling. It essentially means turning your TV off and then turning it on again. It’s an easy method for resolving temporary software problems.

  1. Turn off your Onn TV using the remote control’s power button.
  2. Unplug your TV from the power source and wait for about a minute.
  3. Press and hold the power button on your TV for around 15 seconds to ensure a complete power drain.
  4. Plug your TV back into the power source.
  5. Turn your TV on using the remote control’s power button.

If the Onn TV black screen issue was due to a software problem, power cycling should resolve it.

Quick Fix 2: Checking and Adjusting Cables

Loose or faulty cables can frequently be the culprit behind the Onn TV black screen issue. To ensure that your cables are properly connected and functioning correctly, follow these steps:

  1. Begin by turning off your TV and unplugging it from the power source.
  2. Inspect all the cables connected to your TV, including power cables, HDMI cables, and any other input/output cables.
  3. Ensure that each cable is securely connected to its respective port on the TV and any connected devices.
  4. Check the cables for any signs of damage, such as fraying or bent connectors. If you find any damaged cables, it’s recommended to replace them with new ones.
  5. Once you have confirmed that all cables are securely connected and in good condition, plug your TV back into the power source and turn it on.
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Taking the time to check and adjust your cables can often resolve the Onn TV screen flashes then goes black issue caused by loose or faulty connections.

A more detailed guide on managing TV cable connections can be found here.

Quick Fix 3: Verifying Input Settings

Incorrect input settings on your Onn TV can also lead to a black screen. Verifying and adjusting the input settings can help ensure that the correct input source is selected and prevent the black screen issue. Follow these steps:

  1. Grab your Onn TV remote and locate the “Input” or “Source” button.
  2. Press the “Input” or “Source” button to bring up the input source menu on the screen.
  3. Scroll through the available input sources using the arrow buttons on your remote until you find the correct source for your current setup.
  4. Once you’ve selected the appropriate input source, press the “OK” or “Enter” button on the remote to confirm the selection.
  5. Observe the screen to see if the black screen issue persists. If the correct input source was selected, the picture should appear.

If you’re unsure about the correct input source, you can try cycling through the available options until you find the one that displays a picture. By verifying and adjusting the input settings, you can often resolve the Onn TV black screen issue related to incorrect source selection.

For more information on how to manage input settings on your Onn TV and troubleshoot related issues, you can refer to the user manual or the manufacturer’s support resources.

For more information on how to manage input settings on your Onn TV, refer to this guide.

Quick Fix 4: Testing the TV Remote

A malfunctioning TV remote can also contribute to the Onn TV black screen issue. If the remote fails to send the necessary signals to the TV, it can result in a black screen. Follow these steps to test and troubleshoot your Onn TV remote:

  1. Start by checking the batteries in your remote. Replace them with fresh batteries if they are old or depleted.
  2. Point the remote towards the front of your smartphone’s camera.
  3. Press various buttons on the remote while observing the smartphone’s screen.
  4. If the remote is functioning correctly, you should see the infrared (IR) blaster on the front of the remote lighting up on the camera’s viewfinder.

If the remote doesn’t show any signs of activity on the smartphone camera, it may indicate a problem with the remote itself. In such cases, you may need to replace the remote or contact the manufacturer’s support for further assistance.

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If you find any issues with the remote, try troubleshooting it using this guide.

Quick Fix 5: Disabling Sleep Timer

Sleep timer settings on your Onn TV can sometimes be the cause of the black screen issue. If the sleep timer is enabled, it can automatically put the TV to sleep after a certain period of inactivity. To disable the sleep timer, follow these steps:

  1. Using your Onn TV remote, press the “Home” button to access the home menu.
  2. Navigate to “Settings” and select “System.”
  3. Within the “System” menu, locate and select “Time.”
  4. Look for the “Sleep Timer” option and disable it by selecting “Off” or adjusting the time setting to a longer duration.
  5. Save the changes and exit the settings menu.

For more detailed instructions, consider visiting this page.

Quick Fix 6: Restarting the Onn TV with Keybinds

If your TV is unresponsive to remote commands, you can use a special combination of keys to restart your TV, which can resolve a black screen issue. Here’s how to do it:

  1. Press the ‘Home’ button on your remote five times.
  2. Press the ‘Up’ button once.
  3. Press the ‘Rewind’ button twice.
  4. Press the ‘Fast Forward’ button twice.

These key combinations send a signal to your Onn TV to restart its system, which can sometimes fix Onn TV black screen issues.

Quick Fix 7: Checking Power Outlet and Voltage

Your Onn TV might display a black screen if it is not getting enough power. Here’s how to verify the power supply:

  1. Check the wall outlet to ensure it is providing power. You can do this by plugging in another device and checking if it works.
  2. If the outlet is functioning correctly, examine the power cord for any visible signs of damage.

If you suspect that there might be power supply issues, refer to this helpful guide to troubleshoot the problem.

Quick Fix 8: Assessing Backlight Issues

A black screen with sound on your Onn TV may indicate a backlight problem. Use a flashlight to check for this issue:

  1. Turn on your Onn TV and wait for a couple of minutes.
  2. Shine a flashlight at different angles on the screen.
  3. Look for faint images or movement.

If you can see faint images, it’s likely a backlight issue. In this case, you will need to contact support for backlight replacement.

Frequently Asked Questions (FAQs)

1. Why does my Onn 50 inch TV have a black screen?

An Onn 50 inch TV black screen can be caused by various issues, such as incorrect settings, loose or faulty cables, software glitches, or hardware problems like a failing backlight.

2. What to do if my Onn 70 inch TV has a black screen?

If your Onn 70 inch TV is showing a black screen, try the quick fixes outlined in this guide. Power cycling the TV, checking cable connections, verifying input settings, disabling the sleep timer, or even contacting professional help are all options.

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3. Why is my Onn Roku TV screen black?

A black screen on an Onn Roku TV could be due to an issue with your Roku device, or it could be a problem with the TV itself. It’s best to troubleshoot both the Roku device and the TV to find the root of the problem.

4. Can I perform a factory reset on my Onn TV to fix the black screen issue?

Yes, a factory reset can be attempted if other troubleshooting methods haven’t resolved the black screen problem. Keep in mind that a factory reset will restore the TV to its default settings, so you’ll need to set it up again.

5. How can I restart my Onn TV if the screen is black?

You can perform a keybind restart on your Onn TV, which allows you to restart the TV even if the screen is black. Follow the specific key combination mentioned in the article to initiate the restart.

6. Why does my Onn Roku TV display a black screen after being idle for a while?

The sleep timer feature on Onn Roku TVs can automatically put the TV to sleep after a set time of inactivity, resulting in a black screen. You can disable the sleep timer in the TV’s settings.

7. How can I fix the black screen on my Onn TV when there is sound but no picture?

When you can hear sound but see no picture on your Onn TV, try power cycling the TV, checking the cables, and ensuring the correct input settings.

8. Why is my Onn TV screen completely black with no sound?

A black screen with no sound on an Onn TV can be caused by various factors, such as a software glitch, faulty connections, or a hardware issue.

External Resources

To further assist you in resolving your Onn TV black screen problem, we’ve compiled a list of external resources:

  1. Official Onn Support Website: Here, you can find troubleshooting guides, product manuals, and customer service information.
  2. Onn User Forums: These online communities provide a platform for Onn TV users to share their experiences and solutions.
  3. Online Tutorials: Websites like YouTube often have video tutorials that provide visual guides to fix common TV problems.


A black screen issue on your Onn TV can be annoying, but it’s usually something you can fix yourself

with the help of this guide. Remember to take your time while troubleshooting, as rushing might result in overlooking some critical steps. Don’t forget to consult the FAQs and external resources provided above if you need more assistance. Happy troubleshooting!

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