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Learn the causes of TV malfunctions and how to fix them 2022

How do you fix TV problems? What is the common problems of a TV? How do I diagnose wrong with my TV? Why does my TV keep glitching?

Learn the causes of TV malfunctions and how to fix them 2022
Learn the causes of TV malfunctions and how to fix them 2022


TV set

The invention of the television goes back to the world, electrical engineer John Lee Bird, and after him, scientists developed and updated it until it reached the current situation. For entertainment for adults and children, and that it is an excellent way to transmit information and news, not to mention the possibility of communication between the government and citizens, and this device was able to make the world a small place everyone around it can learn anything about any place easily, in a visual and audible way, but it is possible that This TV is exposed to some malfunctions, and in this article we will talk about the most important malfunctions that it is exposed to.


TV malfunctions

1 - There is a problem with the intensity of illumination

Notes that there are problems with the brightness of the screen and its intensity; For example, the lighting decreases significantly, or the lighting increases and decreases in succession, which is considered one of the common malfunctions, and the reason for this is usually due to a problem with the connections and cables, so it is recommended to check and connect them correctly.


2 - Vertical lines appear

It is noticed that lines appear either colored or black on the screen in a vertical form; It must then be repaired quickly and not tolerated, and it is possible in principle to check the connections and cables, and if the problem is not solved, the graphics card in the computers can be updated, and if the problem is not solved also, the problem may be from the receiver; Another one must be tried, and if no solution is found; Most likely the problem is with the screen itself in the LCD panel, which is a rather expensive piece that must be the right choice between replacing it or replacing the screen as a whole.


3 - sudden stop

It is noticed that the screen turns off suddenly and without control, and this is due to a problem in the electrical current, and it can be caused by a defect in the electrical connection, or in the electrical outlet, or in the electrical regulator in the screen; It must be ascertain the source of the problem and work to solve it.


4 - Black dots appear on the screen

Noticeably, some small dots known as the pixels appear on the screen in black, which indicates that there is a problem and that these pixels are in the wrong position, and the matter can be bypassed if they are few, but if they are many, they must be replaced if they are guaranteed.


5 - Red or green dots appear

The appearance of red or green points in a stable and clear manner indicates that these pixels are damaged, and the matter can be bypassed if there are few, but if they are many, they must be replaced if they are guaranteed; Because it is difficult to fix.


6 - Cracks and cracks

The screen is exposed to some cracks and fractures, and it can be observed in areas that contain color overlap, or through the appearance of black spots, and the fracture site usually appears in black, and to solve this problem it is necessary to replace the LCD unit; It is the only solution, but it is of high value.


7 - Screen resolution difference

If the screen resolution becomes different and lower than usual; It is possible that the reason is due to a defect in the graphics card in the computer, so it is possible to work on updating or changing it, or the problem could be due to a defect in some of the electronic parts in the screen itself; This problem can be resolved by changing the DVI port to the HDMI port.



8 - Other malfunctions


The fuse burns out as soon as the TV is turned on:

 This problem is due to a defect in the electrical supply, so it must be checked and resolved, and it is okay to seek the assistance of an expert.


No color:

 No color is observed despite the clarity of the image; This is due to the occurrence of blotting in the color crystal.


Why is the TV screen turned off?

The cause of the TV screen turning off suddenly is due to many problems, so you must follow some steps to determine the cause of the main problem, and then think about finding solutions to it, the most important of which are the following:


1 - The reason for turning off the TV screen is there is a timer

Modern screens contain a timer system to turn off the screen at a certain time. The energy saving functions or sleep timer functions can be set. These functions help to turn off the TV screen at certain times such as sleep, or in the event that there is no activity on the TV for a certain time. If you do not want to turn off the screen automatically, you must disable these functions by entering the TV settings or by restoring the factory settings.


2 - The TV screen turns off for a moment when the lights or some electrical appliances are turned on

Modern TV screens include advanced technologies that are different from the old screens. Most modern screens, whether they are LCD, LED, QLED or OLED screens, are characterized by their high accuracy, and they contain highly advanced electronic panels and other electronic components, a high-speed visual processor, and many other components. These also include Screens are an advanced protection system that turns the screen off automatically when entering any effect that may cause a defect in the screen and its internal components, so we notice that the screens turn off for a few moments and restart automatically when some effects occur, and these effects include turning on the lighting in the room using fluorescent lamps, or when operation of multiple electrical devices on the same voltage source; Such as fans, laptop chargers, or mobile phone chargers, in addition to operating electronic devices close to the screen, as these devices affect the sensors in the screens due to the change in electrical voltage sometimes or because they emit vibrations that the sensors recognize in the screen and turn off the screen immediately to equalize the voltage or To identify these oscillations.


3 - Why does the TV screen suddenly turn off.

- Cable failure:

 The cause of the screen turning off may be a malfunction in the main cable that conducts the electricity, or it may be due to a malfunction in one of the connections when the TV is connected using an electrical connection, or it may be caused by a sudden voltage change due to the connection of several devices on the same connection.

- Remote control malfunction:

 The TV screen can turn off due to a malfunction in the remote control, and one of these malfunctions is the leakage of liquids to the device; This affects its performance and then turns off the TV screen, and there may be interference in the remote signal with other nearby devices such as the remote receiver.


- Accumulation of dust:

Dust and dust accumulated on the keys or on the electronic panel of the TV screen causes the TV screen to turn off, in this case the panel and switches must be cleaned and then the screen should be restarted.


- Temperature:

The high temperature surrounding the TV set or the extreme cold surrounding the TV set.


- Technical malfunctions:

 including damage to the special ignition key, and this requires consulting a specialized technician to repair the TV screen, and the cause may be the burning of the entire TV screen.



        --- Suggested solutions to turn off the TV screen---

We mentioned that the problem of turning off the TV screen occurs to preserve the internal components of the screen from nearby electronic devices or from changing the voltage. To solve this problem, some measures can be taken that contribute to reducing this problem.


- Make sure the screen cable and the way it is connected well with the screen.

- Connect the TV screen cable directly to the electrical source and do not use multiple connections that connect more than one electrical device to prevent the voltage from changing when connecting other devices.

- Using high-quality HDMI connections that include special filters that prevent vibration interference and its access to the screen, and avoiding cheap, poor connections that do not have filters built into the cable, which affect the screens work greatly.

- Keep unnecessary electronic devices away from the screen so that the electronic devices' vibrations do not interfere with the screen.

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