Is there any way to make the display black

Turn off your phone and put it in the water.

Monitor black screen workaround:

1. If the monitor is not used for a long time, the monitor will automatically turn into sleep energy-saving mode and the screen will be black.

Solution: Take win7 as an example.

1) Right-click on the blank space of the desktop and select "Personalization" in the menu to open the personalization settings dialog box.

2) Click the red box in the above picture to select "Screen Saver" to enter the screen saver settings dialog box.

3) Set the screen saver to "None". And click "Change Power Settings" to enter the power settings dialog box.

4) Click "Change Plan" to enter the change settings dialog box.

5) In the blue box selection, click the drop-down triangle, select "Never", and then "Save Changes" to exit.

After setting, the monitor will no longer automatically go black.

Second, the display failure causes a black screen.

On the internal power board of the display, the capacitance of the power supply output part is aging, leaking, bulging, and failing. When the display is first turned on, because the capacitor is not completely necrotic, in a short time, the power supply is normal, so it can be displayed normally. After working for a period of time, the power supply is seriously insufficient, causing the backlight of the LCD monitor to go out, causing the display to go black.

Solution: Send the professional display repair point for repair, and the components will be damaged even worse, and the cost will be about 30---50 yuan.

Solution: Replug, install and fix the signal cable of the monitor. If the fault persists, the signal cable can be replaced.

Fourth, the performance of the graphics card is faulty and unstable, resulting in a black screen of the display.

Solution: 1. Test after updating the graphics card driver, if the fault persists, directly replace the graphics card for testing.

Note: If you are using an integrated graphics card, you can install a discrete graphics card for testing. Or directly replace the motherboard with integrated graphics for testing.

5. The motherboard performance is faulty and the operation is unstable, resulting in a black screen of the display. Solution: Directly replace the motherboard for testing.

Computer black screen: The computer malfunctions and causes the display to be abnormal.

Display fault judgment.

Monitors are used by everyone, computers or televisions. Sometimes it breaks down very suddenly, and at this time, many people may be entangled, and it will not feel worth it to take it to the physical store for repair, and it will feel a pity if you throw it away.

So many friends will want to buy accessories and come back to change them, but they will not know what accessories to change. Little brother is here to share a simple fault judgment!

The younger brother is the first to sell second-hand circuit boards for displays, and has been doing it for 4 or 5 years, which is a little experience, and interested friends can enter my small store to exchange this topic!

Suitable for novices, please laugh at the masters!

First of all, let's briefly talk about the structure of the display and the names of some accessories.

Housing, screen, power board, high voltage board, constant current board, driver board, logic board, button board. These names are not unique, there are other different names. That's all for a monitor!

Case: Just the frame of the entire monitor, which is usually plastic.

Screen: Generally, there are screens, lamps (light strips) and logic boards.

Power board: transformer power supply board, power supply for the whole machine, directly connected to 220V voltage. The power board on the market is basically a combination of power supply and high voltage, that is, the power board and the high voltage board are integrated on one board.

High-voltage board: A board that powers the backlight of the screen (many are integrated into the power board). A machine for LCD (lamps).

Generally, there are three situations.

1.The graphics card is in poor contact with the display signal cable, and it can be installed before retalking.

2.The monitor itself contains a fault, and this needs to be replaced.

What should I do if the monitor screen goes black after the computer is turned on.

Causes and solutions for black screen on the computer:

1.Check whether the cable between the monitor and the computer is tightly installed, and it is recommended to re-plug the cable or replace the cable.

2.If the gold finger of the memory or graphics card is oxidized, it is recommended to remove the computer memory module, wipe the gold finger with an eraser and put it back.

3.The graphics card's memory is soldered, the performance of the main chip is degraded, the graphics card BIOS is out of order, and the control power supply IC is problematic.

4.Problems with the power supply, replace the power supply.

5.There is a problem with the boot circuit of the motherboard, as well as a virtual soldering problem with the IO, Nanqiao, etc., so it is recommended to repair the motherboard.

6.If you can see a black screen of English letters after booting up, it is generally the system that is broken. In this case, it is necessary to reinstall the system, and the steps to reinstall the system:

1. Plug in the made U disk, press the start shortcut key on the boot screen, select the U disk to start, and you can enter the main menu interface of the large sweet potato U disk.

2. In the PE installation tool, select the win10 system image to install in the C disk, click OK, 3. Remind the program to execute the restore operation window, click the OK button, 4. Carry out the program restoration process, wait for the image to be released, 5. Then restart the computer, carry out the program installation process, and you can set the general parameters of the system until the installation is completed.

There are many reasons, depending on what black screen you have, whether it is out of battery, or the data cable of the display screen is loose, etc.