What to do if a black spot appears on the monitor

The screen of a laptop or personal computer is one of its most important components. It is with its help that the user receives the necessary information and can work on the computer. But sometimes the device breaks down or starts to work incorrectly. So, stripes or spots of different colors may appear. There are not many reasons for a defect to appear.

Reasons for the appearance of a black spot on the monitor

There are several reasons for this failure to occur. All of them are divided into hardware or software. That is, some of them are caused by a breakdown of some computer component, while others are caused by an error in the software.

ATTENTION! Before you start looking for possible problems and solutions, it is advisable to connect the screen to another system unit to check whether stains remain.

The main reasons include malfunctions of elements, incorrect settings, and so on:

1. Motherboard. Usually it breaks due to a manufacturing defect. Failure of the motherboard only in extreme cases leads to defects in the computer screen. Resistors located on the board may also burn out.
2. Matrix. This device is very fragile. Excessive air humidity or even mild mechanical stress can cause the matrix to break.
3. Graphics adapter.The video card is responsible for transmitting the image to the display. Very often it overheats or becomes clogged with dust. Sometimes during operation the wires come off.
4. Plume. The picture is transmitted to the screen via a cable that is connected to the motherboard. Very often it gets pinched, causing mechanical damage and wire breaks.
5. Missing graphics adapter drivers. Problems with them arise after reinstalling the operating system or after an incorrect installation.
6. Incorrect device settings. This may be due to incorrectly set display resolution or settings that are performed on the device itself.

The black bar can be located in any part of the screen, sometimes even in its center. The source of the defect can be a failure of the video adapter, as well as its incorrect operation, or incorrect operation of the display matrix or cable. The stain also appears in the event of strong mechanical impact on the screen matrix.

What to do if a black spot appears on the monitor

Of course, you can turn to a professional, but if you have the necessary skills and tools, you can fix the defect yourself. To get rid of the problem, you need to replace the matrix with a new one. This will require new spare parts and several screwdrivers of different sizes and shapes.

To replace the matrix you must perform the following steps:

• first of all, you need to disconnect the monitor from the network and prepare the work surface;
• Using a suitable type of screwdriver, you need to unscrew all the bolts and remove the back cover of the device;
• all existing metal fasteners also need to be dismantled;
• after which you need to carefully disconnect the cables and remove the failed matrix;
• Carefully place a new one in its place;
• reassemble the device.

ATTENTION! All stages of dismantling and replacement must be performed very carefully!

If the stains did not appear due to a defect in the matrix, then you should check the video card drivers and, if necessary, reinstall them, and clean the device itself from dust and dirt.

The monitor is an important part of the PC and requires the same careful care as all elements of the system unit. It is necessary to regularly clean the device and avoid mechanical impact on it.