Sharp Tv Keeps Turning On and Off Repeatedly [Fixed]

How many times have you settled in to enjoy the comfort of your couch while looking forward to a particular TV show or movie?

But when you turn on your Sharp TV, it keeps switching on and off automatically back and forth. 

Some people even refer to it as a technology malfunction while others see it as a nuisance that ruins their ability to enjoy the contents being displayed. 

This problem, often called as switching power supply for the TV, is a common sight in many Sharp TVs, but luckily, there are some ways to perform such malfunctions.

It’s not only you who has experienced such a universal problem of Sharp Television which keeps on turning your TV ON and OFF. 

As majority of the people using these sharp televisions do and that’s the reason several problems have been detected that may lead to resolution and bugs being implemented in this type of TV.

In this article, we will explain some of the reasons that occur with this problem and also provide some solutions to fix your television detached once and for all.

Why Does Your Sharp TV Keep Turning On and Off?

Let’s first take a look at some of the troubleshooting steps in order to figure out why your Sharp television has been continuously turning itself on and off. 

Samsung TV Flickering Screen

Recently several people have been asking their television sets to repeatedly turn themselves, which is the most frustrating feature.

Power Supply Issues

 

The most anticipated cause of television systems misbehaving (off and on repeat) is faulty power systems. 

 

Any electronic device, especially sharp televisions, requires an adequate power supply on a constant basis.Self-rebooting of your TV can occur, for instance. 

 

If the power supply board has a fault, or if the power outlet has a problem.

 

On a notable occasion, I encountered a similar instability with my Sharp TV. 

 

My observation was that the television would completely power off and reboot itself on its own after a couple of minutes of watching a specific channel. 

 

After a close inspection, the problem came from the power cable, which in this situation was a little bit detached from the back section of the television. 

 

For me, it was as simple as pushing the power cord in more firmly. If the power supply is not the culprit, then more work will be required.

Faulty Remote Control

 

A broken remote control may sound far-fetched but it’s one of the reasons why a Sharp TV keeps switching itself on and off. 

It is common technical issues like a pinned down button or a broken one shoved into a TV that seems like an irritation but isn’t. 

This is often ignored but should not be the case if you are troubleshooting.

In the past, a reader explained to me how the Sharp TV they have kept switching on and off, and their skepticism was based on thinking that it was something serious with the hardware. 

They checked the remote control by taking out the batteries and the issue was resolved. The remote control of theirs was continuously active while there was no other input from the user.

Outdated or Corrupted Firmware

 

The firmware of your Sharp TV is the operating system that manages almost all software operations. 

The problems arise when the operating system is old or damaged, for instance the television turning on and off continuously.

I remember a family who had this particular problem with their Sharp TV after an update that had to be installed had failed in the middle. 

The family’s TV kept on power cycling after it had been able to be powered on for a little over a minute despite multiple resets being done. 

Such problems are usually software related, and as such, may be triggered by an incomplete update or a corrupt one and may need deeper technical support to resolve.

Overheating

 

If your television has excessive heat, it may cut off automatically to prevent damage to the circuitry. 

An excessive heat on a Sharp TV also gives rise to the situation where there’s a cycle of powering the TV on and off incessantly as the heating and cooling of the internal components occurs repeatedly.

For instance, one of my friends had problems with their Sharp television; it was overheating and as a result, being turned off after a short while as. 

It was placed in an enclosed entertainment unit with no ventilation. 

But after moving it away from the unit, it was not overheating anymore since it was able to get enough air.

 

Loose or Damaged Internal Components

 

Another cause of your Sharp TV’s power cycle problem is loose wires, broken pieces inside the TV, or a damaged main board.

 

This can be somewhat too problematic most especially because it seems to have something to do with parts that are concerned within the system and therefore not sighted or easily accessed.

External Devices Connected to the TV

 

Devices such as games, DVD or streaming media players and even use of some peripheral devices could be the cause. 

If such an auxiliary device is afflicted by a fault, it is capable of making the television set behave erratically by causing it to constantly turn off and then return to the on position.

Faulty Power Button or Circuit Board

 

And then, this means that the power button or in other instances, the board at which the power button is located could be faulty. 

 

Such instances are not common but possible but of course, such can occur. In case a power button or any other specific board fitted within the casing of the television set becomes faulty, continuous rebooting will ensue.

How to Fix a Sharp TV That Keeps Turning On and Off

 

Having been enlightened of probable causes of the concern, let us shift and see how such can be addressed. 

 

The following steps will refer you to troubleshooting and quite a good amount of fixing of power cycling of your Sharp television set.

Step 1: Check Your Power Supply

 

The reason may be the TV turns itself on or off based on quotes from Sharp Etiam’s TV. A power supply unit (PDU) malfunction can be extremely challenging, 

 

But the bright side of the situation is that the most common problems have simple solutions.

Actionable Fix: 

A practical solution that is available to the users. Make sure both the television and the socket have been connected properly via the supply cord. 

 

In a case where the power cord is loose or not in good condition, it could result in a case of intermittent power. 

 

Also, look for an alternative to the current power outlet by plugging the TV into another one. 

 

If you are using a surge protector/power strip, try removing it and connecting the TV directly to the wall socket instead.

In case the power connection is ruled out but the TV keeps on turning on and off, the next step involves checking the power supply board for defects.

Step 2: Test the Remote Control

 

A broken remote can cause your TV to power cycle without you doing anything. 

Samsung  TV Flashing On  And Off  

Just for precaution, the batteries of the remote should, often, be removed when the interface is not in use.

Actionable Fix: 

Switch off the batteries in the remote and check if the TV turning on and off problem persists. The cause could be the remote. 

 

First, try changing the batteries. This is the most effective way of ruling out the possibility of a remote being the cause. 

 

If that does not work, try a completely different remote to see if there’s still an issue.

Step 3: Check for Firmware Updates

Samsung Tv Keeps Turning On and Off Repeatedly 

Many users encounter such troubles as restart loops on their Sharp TVs which certainly is linked to Firmware problems. 

 

If the firmware of the TV happens to be faulty or old, it is preferable to update it for better efficiency.

Actionable Fix: 

To update the firmware of the Sharp TV, it is necessary to update the firmware first. 

 

To do this, you need to check if updates are available for the device:

 

On the remote controller push the “Home” button and reach the Home menu on the TV.

 

Open the settings by clicking on the icon in the top right corner. Now click on the system, and there you will find Software update.

Then press Check for Updates and complete the steps that appear on the screen in order to make use of the firmware update.

In cases where an update was made, or the process of updating the firmware did not allow for its successful completion and the TV continues to be in the power-cycle state.

 

You will need to reset the unit to its factory settings to regain default configurations. 

 

Proper procedures should be observed as a factory reset would remove your data backups.

Step 4: Improve Ventilation to Prevent Overheating

 

It is important to remember that the TV will turn off by itself in case it is too hot in order to avoid suffering damage. 

 

A TV operates its cooling system more effectively when there is good airflow surrounding the unit.

Actionable Fix:  

Place the television in an open area where ventilation is nice and easy. 

 

If the television is situated within an entertainment cabinet, or in an enclosed area. It may be helpful to reposition the television into an open area or install a fan to assist with airflow.

Step 5: Disconnect External Devices

 

Sometimes you can experience problems with the operation of your TV due to external devices, such as power cycling.

 

It can be caused for example, by HDMI cables and other external devices like streaming boxes and consoles.

Actionable Fix:

Remove all the external devices connected to your TV such as HDMI cables, USB drives and gaming consoles. 

 

Once you have finished unplugging the devices, switch off your TV. Check again whether it still turns on and off on its own. 

 

If the TV works appropriately when no external devices are connected. Then begin re-connecting the devices one by one till the defective device is located.

Step 6: Reset the TV to Factory Settings

 

If any of those recommendations fail to repair your television. The easiest and quickest option may be to reset your Sharp TV back to factory settings.

Actionable Fix: 

In order to perform a factory reset on your Sharp TV here are the things you need to do:

 

Using your remote, push the Home button.

Continue to Settings > System > Reset.

Select Factory reset and adhere to the instructions given on the screen.

This will restore the TV to its factory settings. And permanently delete any settings to this TV that may cause it to power cycle.

FAQ: Common Questions About TV Power Cycling

Can a power surge cause my Sharp TV to turn on and off repeatedly?

Yes, if there is a power spike, the internal components of the TV set can fail thermally and the unit will turn on and off in an alternating manner. 

 

The use of a surge protector is essential for avoiding this kind of damage.

 

Is it possible that a faulty HDMI cable could cause this issue?

Yes, a poorly functioning HDMI wire may cause power cycling issues as it may interfere with the TV signal. 

 

Consider using a different HDMI wire as you test the device to see if the issue continues.

Should I call a technician if my Sharp TV keeps turning on and off?

When you have attempted all routes and the problem still lies. Seeking professional help in the form of a technician contact would be beneficial. 

 

Particularly if a hardware problem exists like a faulty power supply or torn inner hardware.

Conclusion

Sharp TVs that repeatedly switch on and off can be both annoying and difficult to understand. 

Nonetheless, with some troubleshooting skills, most of these problems can be fixed easily within a short duration. 

By inspecting the power source, checking the remote control. Updating the system software, and ensuring that there is sufficient airflow around the TV set.

And removing any connected appliances, you can solve the situation by yourself and not call a repairman.

Consider this if nothing works: the problem that you have may be an internal defect. Which requires an expert skilled in the set’s hardware structures. 

We hope that this guide has helped you fix your Sharp TV and allow. You many hours of uninterrupted viewing of your programs and movies.

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