Onn TV Black Screen: How To Fix In Minutes - Robot Powered Home

I had recently picked up an onn TV so that I could have the telemetry and lap times for the NASCAR races that I watched.

A few months passed before it started showing issues.

The TV would turn black suddenly or even refuse to turn on when I pressed the power button on the remote or the TV.

I needed to get this fixed before the next race weekend.

So I went online and checked out onn’s support guides and articles on why a TV could turn black for no reason.

I also read through quite a few user forums.

People had been trying to get this issue fixed, and after several hours of research, I managed to fix the TV and get it back to normal again.

After you finish reading this article, you’ll be able to know how you can fix your onn TV showing a black screen in minutes!

To fix an onn TV showing a black screen, try power cycling the TV. If that doesn’t work, you can try factory resetting the TV instead.

Continue reading to find out a key combo to quickly restart your onn Roku TV and how you can reset your onn TV.

Power Cycle your Onn TV

The first thing you can try if your onn TV turns black is to restart or power cycle the TV.

This basically soft resets the TV by removing all power from its systems and powers it back up again.

To do this:

1. Turn the TV off.
2. Unplug the TV from the wall.
3. Wait at least 30 seconds before plugging it back in.
4. Turn the TV on.

When the TV turns on, ensure the black screen issue appears again by reproducing the sequence of events that led you to have the issue.

You could try restarting a few times if the first attempt didn’t do anything.

Check the Cables on your Onn TV

If you have input devices connected to your onn TV and have the TV switched to that input when you see the black screen, you should check the cables connected to your onn TV.

Ensure all the cables are firmly connected, including the power cable, and check the cables themselves for damage.

If they are, you can get replacements for them online.

For power cables, I would recommend the [amazon link=”B0153T1JG6″ title=”Cable Matters C7 power cable” /], and for HDMI cables, the [amazon link=”B075N83B9X” title=”Belkin Ultra 2.1 HDMI cable” /] would be a great choice.

Check your TV’s Input Settings

You also need to ensure that the TV is in the correct input you’re trying to watch before trying anything else to troubleshoot it.

If you haven’t switched the TV to the right input, you will see a black screen, so check if you are on the right input.

To switch inputs, use the input key on the remote to open the list of inputs; use the directional keys to select the right input and confirm the selection.

Check if you are getting the same black screen issue again after switching the inputs.

Check your Onn TV’s Remote

Your remote also needs to work to control the TV and turn it on so that you can control the TV properly.

The batteries should be something else that you should check, and if you haven’t replaced the batteries in a while, do so and try using the remote again.

If your Hisense remote has an IR blaster, you can check if it works using your phone’s camera.

All you need to do is point your phone’s camera at the remote while you are pressing buttons on the remote.

If you see the front of the remote lighting up on the camera’s viewfinder, then the remote is working.

Turn Off the Sleep Timer on your Onn TV

Onn Roku TVs have sleep timers, and if they were turned on for some reason, they would automatically put the TV to sleep after a set time of inactivity.

If you see that the TV turns black after not using it for a long time, it might be the sleep timers turning on.

To turn the timer off:

1. Press Home on your Roku remote.
2. Go to Settings > System > Time.
3. Select Sleep Timer.
4. Turn the feature off.

After doing this, keep the TV inactive and see if it turns black again.

Use the Set Keybind to Restart your Onn TV

If your onn TV has a Roku built-in, there is a shortcut that lets you restart the TV without needing to see the display itself.

You could try this if the power cycle that we did initially didn’t work.

To do this:

1. Press the Home key five times.
2. Press the Up key once.
3. Press Rewind twice, and then Fast Forward twice.

You can repeat this keybind a few times to fix the black screen issue.

Plug your Onn TV into a Different Power Outlet

Your onn TV might not be showing a picture and instead a black screen because it isn’t receiving enough power.

The outlet you have the TV connected to might not be rated to deliver the required power to your TV.

Try using another outlet or a power strip, or try plugging the TV into the wall plug directly instead of a power strip.

Check with all the outlets you can, and also check if the outlets work okay with other devices and can deliver power to them.

Check your Onn TV’s Backlight

If the TV’s backlight isn’t working or turned on, the TV will only show you a black screen with the audio playing in the background.

If this is the case for you, there is an easy way to confirm that it was the issue; all you need is a flashlight.

Turn on the flashlight, bring it close to the screen and shine it on the panel directly.

If you see moving pictures on the TV with the help of light, you can confirm that the issue is with the backlight, and you’ll need to replace it.

Contact onn support so that a technician can dig a little bit deeper and get the backlight replaced.

Factory Reset your Onn TV

If a restart doesn’t seem to work as well as anything else you’ve tried earlier, your TV might require a factory reset.

A factory reset will restore the TV to how you got it when you purchased it, and you’ll have to set up everything again after the reset completes.

To reset your onn TV:

1. Find the reset button on the body of the TV. The button will look like a pinhole and will be labeled reset.
2. Use a non-metallic and pointed object to press and hold the reset button for at least 10-15 seconds.
3. The TV will restart when it completes the reset, and you can set the TV back up.

You’d only need to factory reset once, and if it still doesn’t seem to fix the issue, you might need to look at other alternatives.

Contact Support

If you think your TV needs repairs or needs the backlight replaced, contact onn support to get help.

They’ll be able to send a technician home to you to check the TV out and diagnose the issue with your TV.

Final Thoughts

Onn TVs are really good for how much money they cost and offer all the essentials you would expect from a smart TV.

Getting them fixed by yourself is easier than most mainstream brands, but any major repairs should be done by a professional instead.

Additionally, if your Onn TV not connecting to Wi-Fi, we have a guide to help you.

When you go through the proper channels and get help from onn support, they’ll let you claim your warranty.

If it is still active, they will waive any service charge associated with the repair.

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Frequently Asked Question

How do you reset an Onn TV?

To reset an onn TV, you can use the reset button on the body of the TV.

Press and hold the reset button for at least 15 seconds to reset the TV.

Why won’t my TV turn on but the red light is on?

When the red light on your TV is turned on, the TV might have gone into standby mode or isn’t getting enough power.

Press the power button on the remote or try another power outlet.

Does Onn TV have a warranty?

Onn TVs offer one-year warranties on all TVs, and you can claim it by contacting onn support.

You’ll need the model and serial number of your TV and the purchase receipt to claim the warranty.

What does the Onn TV warranty cover?

The warranty for onn TVs covers any defects in workmanship or material quality for a year from the date of purchase.

Any charges for replacement parts won’t apply to you if you are still under warranty.