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How To Keep a Toshiba Smart TV From Turning Off (9 Steps)

How To Keep a Toshiba Smart TV From Turning Off

Toshiba Smart TVs have many excellent features, and they’re among the most in-demand and affordable televisions on the market.

However, the TVs can sometimes turn off without warning while you’re watching your favorite show.

What can you do to stop that situation?

To keep a Toshiba Smart TV from turning off, you can disable the REGZA-Link, replace the LED strip, or adjust the energy savings mode. You can also check whether there’s a software update available to fix any potential bugs. Additionally, there might be a heat or power supply issue. 

This article will discuss the possible reasons why your Toshiba Smart TV is turning off and the different steps you can take to solve this problem. 

Reasons Why Is Your Toshiba Smart TV Turning Off

There are a variety of things that could be causing your Toshiba Smart TV to turn off.

It may be due to a software or hardware issue. Let’s go over all of them now.

Power Supply 

The first thing to check is the TV’s power supply. The power cord can malfunction at any time, even when a TV is brand new.

A bad cord can cause the power flowing to the smart TV to fluctuate, making it turn off suddenly.

The socket in which the cord is plugged may also be a source of the problem.

This may be the wall socket, extension cable, or surge protector. Any of them can develop issues at any time. 

Faulty HDMI Cable

The HDMI cable enables the transmission of high-quality digital video, sound, and other commands between devices.

Defects in the HDMI can cause the TV screen to turn off when the TV is connected to other devices, such as a game console or tablet. 

Reading recommendation: Will a Smart TV Work With an Antenna? 5 Device Facts

A REGZA-Link Signal Issue

Toshiba Smart TVs have a system that controls HDMI called REGZA-Link.

This function allows you to manage all devices connected to your TV via HDMI using only one remote control.

Therefore, when you turn on a game console connected to your Toshiba Smart TV, the REGZA-Link will automatically turn the TV on and switch to the input you’re using.

Although this technology is officially known as the Consumer Electronic Control (CEC), most manufacturers use trade names specific to their brand.

The REGZA-Link can malfunction because one of the devices connected to the TV sends out signals erroneously, and the REGZA-Link misreads them.

Energy Savings and Backlight Settings

To conserve power, the Toshiba Smart TV has an energy savings mode with seven different settings.

Although the settings options may differ depending on your model, they’re usually the following: 

  • Custom 
  • Minimum
  • Medium
  • MaximumAuto
  • Switch Off 
  • Off

If you set it to Auto, the TV will switch to its lowest power consumption mode and automatically turn off after waiting for a period without carrying out any activity.

Additionally, the setting selected under Energy Savings also affects the backlight level in some Toshiba TVs.

If you don’t set it to Custom, the backlight won’t function, resulting in the TV not turning on.

Internet Connectivity or Smart Assistant Interference

One of the most appealing features of smart TVs is that they can directly stream online content via WiFi or an Ethernet cable.

Some Toshiba smart TVs also have an in-built integration with Alexa, letting you control the TV with just your voice.

You can even set a smart routine that Alexa performs automatically at a specific time.

Although these features enhance user convenience, they may also occasionally interfere with the TV’s performance or functions, causing it to shut down abruptly.

Outdated Software or App Data Glitches

When your TV’s software or firmware is out of date, it may develop issues that impair its performance, including causing the TV to turn off.

Some software may have bugs from the beginning and require an update to resolve them.

However, occasionally, some updates may actually introduce bugs and glitches depending on the model and age of your smart TV.

Additionally, if you notice that your smart TV turns off when you open a particular app, it may be caused by inconsistencies between the app’s cached data and the TV.


The location and surrounding environment of the TV may cause it to overheat and turn off.

Placing your smart TV near a heater, fireplace, or in an area where it receives can result in it getting excessively hot.

A build-up of dust on and in the TV’s vents can also cause it to heat up. 

LED Failure

Most Toshiba Smart TVs have a 4K Ultra High Definition (UHD) display.

These displays commonly use Liquid Crystal Display (LDC) panels that are backlit by Light-Emitting Diodes (LEDs).

Occasionally, one or more LED strips may start failing, resulting in the screen turning off intermittently.

Learn more: Where are Toshiba TVs made? 

9 Steps To Keep Your Toshiba Smart TV From Turning Off

Before calling a repair person, try implementing the following steps to keep your TV from turning off.

1. Check the Power Supply

Check The Power Supply

Unplug the power cord from the wall, extension cable, or surge protector and plug it directly into a different wall socket in the room or house.

If the TV turns on and stays on, the issue is with either the wall socket, extension cable, or surge protector you have been using.

But if the TV continues to turn off, its power cord or internal power supply board may be the problem.

You can try to replace the cord if it’s not permanently attached to the TV.

However, if that still doesn’t solve the problem or if the cord is permanently connected, seek expert assistance in further examining the issue.

Check out: Why Are All My Smart Devices Offline? 3 Causes & Fixes

2. Disconnect the HDMI Cable

Disconnect the HDMI cable from your TV and see if it stops turning off.

You can also try using a different HDMI cable from another device around the house or office to test if the problem lies with the cable. 

3. Disable the REGZA-Link

In your TV’s settings menu, navigate to the REGZA-Link set up and turn it off.

The exact location of the REGZA-Link will differ depending on the model type and age.

As mentioned earlier, using this technology, you can control more than one device with the same TV remote. However, sometimes it causes glitches. 

4. Change the Energy Savings Mode

Change the energy savings mode from Auto to Custom. Not only will this prevent your TV from turning off, but it will also keep the backlight on.

However, as mentioned below, make sure that you lower the backlight levels to avoid them from burning out regularly.

5. Disconnect WiFi and Smart Assistant

Disconnect the WiFi for a few days. This will stop all devices linked to your TV via WiFi, as well as in-built programs such as Alexa, from interacting with your smart TV thereby freeing it from potential interference.

Depending on your model, you can also specifically disable Alexa by opening the Alexa app, navigating to More, and clicking on Settings.

Select TV & Video, click on your TV or video service provider, and choose Disable Skill.

Instead of streaming content, during this time you can watch things that you have already downloaded, or from an external drive, or even a DVD player if you have one.

6. Check for Software Updates

Check if the TV has a software or firmware update available.

In some models, you can do this by going to Settings, clicking on Device & Software, and selecting About.

If there is an option to “Install System Update,” click on it.

For older Toshiba models, the upgrade option is under “Get Help” in the Menu section.

Also, clear the cache of the apps you use the most to remove any corrupted stored data and increase the TV’s performance speed.

You can do this in the Settings menu.  

7. Change TV Location and Dust It

Switch off the TV – you can even unplug it completely – and leave it off for a few hours to cool down.

During this time, if it’s in an area where it’s exposed to heat, change its location.

Also, dust the vents and use a handheld vacuum to extract the dust from inside the vents.

8. Replace LED Strip

Although some tech-savvy smart TV users may have a go at replacing the LED strips at home, the best option is to take your TV to an expert to replace it for you.

To prevent the LEDs from burning out frequently, turn down the level of backlighting in the Settings menu.

9. Factory Reset

This is often the last resort because it erases all the settings, data, and downloads that you have on your TV.

Some people choose to leave this decision to an expert. However, if you do decide to do a factory reset, make sure you backup all your private information. 

Final Thoughts

When your Toshiba smart TV starts to turn off frequently, it’s worth exploring the nine steps above as one of them will most likely resolve the problem.

You can implement the majority of these fixes at home.

They don’t require special equipment or technical expertise. And hopefully, you’ll get back to enjoying your Toshiba smart TV in no time.