The computer screen is black, the monitor is turned off, and the meeting is turned on again for 2 se

Try a different monitor. If it is normal, it is a problem with the display; If it also fails to display, it may be that the graphics card is damaged or the BIOS is damaged. You can unplug the graphics card first, wipe the gold finger with an eraser, and then insert it correctly, and try it on the computer; If it still does not work, the motherboard BIOS may be corrupted by a virus and the BIOS may be re-flashed.

However, if you are not familiar with brushing, you can find a professional maintenance person to help you brush, about 10 yuan.

The internal high-voltage board or screen lamp is damaged or aging caused by the high-voltage output imbalance protection caused by the in-warranty maintenance is not costly, the warranty board is mainly about 50-100, and the screen lamp is broken and the maintenance needs about 200-300.

First see if the data cable is loose or damaged, and then see if there is any problem with the memory, such as: loose, rusty, damaged or try to change the graphics card.

Check the internal memory of your computer as well as your graphics card.

The computer is turned on, the chassis display is used normally, and the screen is black, but the screen is black when the monitor is turned off, and the screen is flashed again, and the screen is black, and the CPU has been ruled out, and the graphics card problem is imitated.

Hello dear, glad for your question. First of all, it is recommended to shut down, cut off the power, press and hold the power button for more than 5 seconds, open the case and re-insert the memory module and graphics card, clean the computer with a comprehensive dust, and replace the motherboard battery. After the computer is turned on, the LCD screen lights up and the screen goes black, which is a problem with the LCD screen, including dark screen failure and black screen failure.

The first type: dark screen failure: when the LCD is turned on, the screen is black, first try to take care of the screen with a flashlight, see if you can see the image, if you can see the image, this is the dark screen failure, the vast majority of the lamp problem.

This is due to: the capacitance bulge at the output end of the power supply circuit part, the phenomenon of leakage, or the short circuit of the high-voltage package, the open circuit of the high-voltage coil, the damage of the adjustable resistance, the breakdown of the switch control tube, or the damage of the lamp, will appear This kind of boot is lit up, and the screen is immediately darkened, and the possibility of lamp damage is the greatest. Solution:

Replace the lamp. The second type: black screen failure:

When the computer's monitor lights up when it is turned on, the screen goes black. If the flashlight does not see the image on the screen, it is a typical black screen failure. Generally, the black screen is due to the failure of the power supply circuit and the driver board circuit, such as the leakage, bulging, and leakage of the large filter capacitor of the power supply circuit, the performance of the power supply ** chip is reduced, and the short circuit inside the electric rock Zhiyuan closed open tube, and the filter electrolytic capacitor at the output end of the power supply is bulging, leaking, and discharged, and the performance of the MCU chip of the drive circuit is reduced, and the power supply is stable and the voltage is too voltage, and there will be a black screen failure.

Solution: Repair the power circuit, drive circuit and components mentioned above. Hope mine can help you ha!

The black screen of the monitor is a very common computer failure, many users do not know how to solve it, recently some friends have encountered the situation that the monitor has a black screen but the light is on in the process of using the computer, so what should I do? There are many reasons for this problem, the most likely of which is caused by a resolution error.

There was an error in the display resolution:

If this is the case, you need to connect the power cable of the computer first, restart the desktop computer and wait for the green light to turn on, press the "Ctrl + Alt + F7" shortcut key to restore the default resolution, or you can also change the resolution of the computer after booting to prevent the problem from happening again;

VGA cable failure:

Carefully check whether there is a problem with the VGA cable, if there is a problem with the cable breakage, damage, oldness, etc., it is enough to replace it with a new VGA cable.

Graphics card failure: If the graphics card fails, reinstall the graphics card, the specific steps are to open the bezel on the chassis where the graphics card is stored, insert the graphics card, then turn on the computer, install the driver according to the system prompts, and restart it after completion.

Computer Virus Destruction:

When you start the computer, immediately press and hold the Ctrl key on the keyboard, or press the F8 key on the keyboard before booting into the Windows system boot screen, and wait for the computer to enter safe mode to scan.

The above is all the content of the solution to the black screen indicator light on the computer monitor, we follow the above methods to troubleshoot in turn, I hope this method can solve everyone's problems.

Haven't redone the system, have you? Transfer all your data in the C drive to another disk and redo what the system should solve.

1.The high-voltage bar is broken and replaced with one, and some are integrated with the high-voltage bar of the power supply, which is more troublesome to repair, and it is recommended to modify the LED to emit light.

2.If the monitor has been used for many years and the screen is dark, it means that the lamp is aging and can only be replaced. If the screen is still bright before the break, it means that there are individual lamps that are damaged or broken.

As long as one of the four lamps has poor oxidation contact at one end, this situation will occur.

There is high voltage in the machine, and it is recommended not to disassemble it without certain circuit knowledge.

Hello, this kind of problem like you said is basically a problem with the power strip of the display, take it out and see if the capacitor blows up.