Why does the monitor go black on its own? What s going on with the black screen of the monitor

I'm repairing an LCD monitor, and there are generally two possibilities for this problem. 1.The filter capacitor bulge of the power supply part of the power supply 2Failure of the high-voltage plate.

Repair cost: between 80-150.

Such a problem should be that the power supply of the display is in poor contact, and the repair fee is very cheap Thirty or forty yuan is enough!

Generally, if the performance of the high-voltage board is poor and the motherboard components are broken, the maintenance is about 120.

The problem with the high pressure plate is not for money during the warranty period. About 100 pieces have been replaced

If there is a fixed black screen, it is generally caused by the host settings, and if it is a random black screen, it may be the *** of the display.

There may be 3 aspects to judge:

1.Graphics card issues.

Replug it in, clean the gold finger, and see if the fan is normal.

If it doesn't work again, it will be replaced free of charge during the warranty period).

2.Cable problem (replugging, checking VGA or DVI interface) 3Display issues (Check if the electrical outlet is powered on.) If it's convenient, connect it to other computers to see if it's normal).

One-click restore. If you don't have a system disc ready, the optical drive can be used. Start the computer and press the DEL key, set it to a disc boot in the BIOS, insert the system disk and reboot, basically complete it automatically according to the steps.

Mine is the same, turn on it well, it will be dark after a while, and then move the screen, okay.

Probably it's a problem with the screen.

Summary. Power issues: First, make sure that the monitor's power cord is well connected and that the power switch is on.

Signal problems: Check that the connection cable of the monitor (such as HDMI, VGA, DVI, etc.) is securely connected to the computer or other input source. Monitor Setup Issues:

In the case of a black screen on the display, you can try adjusting the brightness, contrast, and other display settings of the display.

Power issues: First, make sure that the monitor's power cord is well connected and that the power switch is on. Signal Issues:

Check whether the monitor's cable (such as HDMI, VGA, DVI, etc.) is securely connected to the computer or other input sources. Monitor stool setting issues: If the monitor screen is black, you can try adjusting the brightness, contrast, and other display settings of the monitor.

Can you tell us more about that?

Graphics card issues: If you're using a discrete graphics card, make sure the graphics card is properly installed and connected to the monitor. Hardware failure:

The monitor may experience hardware failures, such as power supply** issues, faulty backlights, or damaged other components. With Huai laughing on all lead rolling may contain the possibility please check in turn!

It may be that your computer's resolution is too high, just turn down your computer's resolution on a different monitor.

1. First of all, you need to check whether the line connection of the monitor is normal, if the hands-on ability is relatively strong, you can also check whether the connection between the graphics cards of the motherboard is normal, and try to reseat the graphics card by yourself.

2. After checking the hardware equipment of the machine, if there is still a fault problem, you can connect it with another monitor or graphics card to view the problem of the device.

3. It is also necessary to check whether the fan of the CPU is running normally, and whether the output of the voltage is normal by measuring the voltage through the multimeter, and if there is an abnormality, the power supply needs to be replaced.

4. If the CPU or motherboard is faulty, you can only replace the CPU and other hardware, if it is a system failure, we can reinstall the system through the U disk.

The introduction of the computer is as follows:

Electronic computer (electroniccomputer), commonly known as computer, is a modern electronic computer used for high-speed computing, which can carry out numerical calculations and logical calculations, have storage and memory functions, and can run according to programs to automatically and high-speed processing massive data.

It consists of a hardware system and a software system, and a computer without any software installed is called bare metal. Computers are used as control systems for a variety of industrial and consumer equipment, including simple purpose-built equipment, industrial equipment, and general-purpose equipment.

It can be divided into five categories: supercomputers, industrial control computers, network computers, personal computers, and embedded computers, and the more advanced computers include biological computers, photonic computers, quantum computers, etc.