Why does the computer turn off the monitor on its own after running for a while after that the moni

One: Quickly press F11 to press and release when you boot up. Until the machine is turned on.

Two: The graphics card is broken or loose.

If it is an independent graphics card, unplug the graphics card after shutting down, clean the connection with the motherboard with an eraser, and plug it back in, you can try to insert it several times, sometimes the graphics card is in poor contact with the motherboard, if it is an integrated graphics card, then see if the graphics card socket is normal, if you still hear 1 long and 2 short alarms, then the graphics card is broken, it is recommended to replace the "in the case that other accessories are good".

3 The memory module is loose or broken.

If you hear that the machine has been alarming, then you pull out the memory and wipe it with a napkin, plug it in, it may be that the memory is sent, if it is still a non-stop alarm, then it is recommended to change the memory to try, if it is still an old problem, change the memory "in the case that other accessories are good".

4 The CPU is loose or broken.

Generally speaking, the CPU is rarely loose or broken, but less does not mean that there is no such problem, such problems are generally caused by the CPU fan, it is recommended to replace the CPU fan, coated with heat dissipation silicone, and the CPU is plugged back in

Hope it helps;

Static electricity problem, you disassemble and pull that part wipe rub = =

This can definitely have nothing to do with the display, you can use software to test the CPU and GPU temperature, and self-protection may occur when it is too high.

If conditions permit, you can borrow someone else's monitor to see if it's a problem, but from the phenomenon you said, it definitely doesn't have anything to do with the monitor.

Display aging! I guess it's a very early monitor. You can go to the place where the monitor is repaired.

Summary. Take win10 as an example.

1. It may be a dark screen failure: when the LCD is turned on, the screen will be black, first try to use a flashlight to look at the screen to see if you can see the image, if you can see the image, this is a dark screen failure, most of them are the problem of the lamp. 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 resistance may be damaged, the switch control tube is broken, or the lamp is damaged, there will be this phenomenon of turning on the boot and turning on the black screen immediately, and the lamp is very likely to be damaged.

The solution is to replace the lamp.

Why does the computer's monitor always turn on and then go off?

Take win10 as an example. 1. It may be a dark screen failure: when the LCD is turned on, the screen will be black, first try to use a flashlight to look at the screen to see if you can see the image, if you can see the image, this is a dark screen failure, most of them are the problem of the lamp.

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 resistance may be damaged, the switch control tube is broken, or the lamp is damaged, there will be this phenomenon of turning on the boot and turning on the black screen immediately, and the lamp is very likely to be damaged. The solution is to replace the lamp.

2. It may be a black screen failure: when the computer is turned on, the computer monitor will be black when it is turned on. If the flashlight looks at the screen and you can't see the image, it's a typical black screen failure.

Generally, the power supply circuit and the driver board circuit are faulty, such as the large filter capacitor of the power supply circuit leakage, bulging, leakage, etc., and the performance of the MCU chip of the drive circuit is reduced, and the power supply is stable and the voltage regulator has problems. The solution is to repair the power circuit, drive circuit and components.

How to fix it. Dear, you can read the solution for yourself.

Ibid. Good.

Hello everyone, I am Time Fortune Network Intelligent Customer Service Time Jun, and the above questions will be answered by me. 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 two types: dark screen failure and black screen failure. The first type is the dark screen glitch:

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 capacitor 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 light, immediately on the dark screen phenomenon, the lamp damage is the most likely.

Solution: Replace the lamp. The second type is a black screen glitch:

When the computer is turned on, the computer's monitor lights up and the screen goes black. If the flashlight does not see the image when looking at the screen, it is a typical black screen failure. Generally, the black screen is 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 declines, and the power supply is closed and the inside of the tube is short-circuited, 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 regulator is in trouble, and there will be a black screen failure.

Solution: Repair the power circuit, drive circuit and components mentioned above.