Why does the TV flicker? Why does the TV have no signal?

As long as it is an electronic network product, various small problems will generally arise during use, such as the TV we often watch at home. The following will share with you the reasons why the TV flickers, why the TV has no signal, and how to turn on the TV after it is timed off. If you have encountered a similar situation, I hope it can help you solve it.

Contents of this article

1. Why does the TV flicker?

2. Why is there no signal on the TV?

3. How to turn on the TV when it is timed off?

Why does the TV flicker?

What is the reason for the flickering of the TV? Some friends have encountered this problem when watching TV. Today I will bring you a specific solution.

Taking Huawei Honor Smart Screen X1 TV as an example, the reasons and solutions for the flickering of the TV are:

The TV screen is unstable and always flickers. The reasons and solutions are: first check whether the power supply voltage of the TV is stable. Instability will cause flickering.

Check if there is any problem with the signal source input, such as whether the video input cable or CCTV antenna has poor contact, etc.

Is the signal source normal? (You can test by switching to other programs)

If you have a DVD player at home, you can test the signal source problem.

When the above methods cannot solve the problem

It is usually caused by a hardware failure of the TV, such as a screen failure or a cable failure.

In case of internal circuit failure, mainboard or component failure, it is recommended to contact the TV's after-sales service for repair.

Why is there no signal on the TV?

If the TV screen shows the startup image of the set-top box and then prompts "No Signal", this phenomenon proves that the audio and video (red, yellow, and white) connection between the set-top box and the TV is basically fine. However, the TV RF input signal line (note: not the three red, yellow, and white) is not connected to the RF input port of the set-top box, or the TV RF input signal line is not connected to the terminal box on the wall, or there is another circuit break in the room.

If the set-top box startup image does not appear on the TV screen, and then there is only a blue screen without any text prompts, then there is a problem with the TV's channel settings. Please use the TV remote control to press the source button or AV/TV button to switch the TV from the analog TV channel to the video channel.

If the digital TV set-top box does not work and the TV shows no signal, first check whether the power light on the front of the set-top box is on. If not, please check whether the set-top box power plug is properly plugged in (make sure the socket has power) or check whether the set-top box switch is turned on.

How to turn on the TV when it is timed off?

After the TV is set to shut down on time, if it is turned off, press the power button to turn it on. If it is not turned off and you need to cancel the timed shutdown, the setting method is as follows:

1. Turn on the TV.

2. Point the remote control at the TV and press the Menu button to bring up the menu options.

3. Find system settings in the menu options and press the confirm button to enter.

4. After entering the system settings interface, find the option of scheduled power on or scheduled power off, and press the confirm button to enter.

5. After entering, turn off the scheduled shutdown function to cancel the scheduled setting.