The computer LCD has a black screen, and it can t be turned off at this time, what is the reason?

Microsoft publishes an open letter to users about the genuine value-added program.

Sina Science and Technology News reported on October 23 that Microsoft will launch a notice of Windows and Office genuine value-added plans in China from October 20. The desktop background of pirated XP users will be turned solid black every 1 hour, and the pirated Office user software will be permanently marked with visual markings. This move has attracted great attention from Chinese users, and today Microsoft issued an open letter to users on this matter, the full text of which is as follows:

An open letter from Microsoft Corporation to users about the Windows and Office Genuine Value-Added Program.

Dear users:

As part of the global plan, Microsoft launched the Windows and Office Genuine Value-added Program (hereinafter referred to as the "Program") in the Chinese market at 24:00 on October 20, 2008. The program has attracted a lot of attention from users, ** and society. We are very grateful for your attention.

1.The program is only a product verification tool to assist users in identifying whether the Windows operating system and Office applications installed on their computers are genuine. We expressly promise that the Program will not collect names, email addresses, or any other personal information that can be used to identify users in any form.

2.Users are completely free to choose whether to participate in the program or not. There will be no repercussions for users who do not participate.

3.The program does not affect any functional use of the computer, and the so-called "black screen" means that the desktop background of those computers that have volunteered to participate in the program but have not passed the verification (i.e., computers with pirated Windows XP Pro installed) will automatically change to black. During this period, the user's normal use of the computer will not be affected in any other way.

4.Microsoft's "Genuine Software Value-Added Program" is a global program, not just for the Chinese market.

In recent years, the protection of intellectual property rights has received more and more attention, but we recognize that this is a long-term process that requires the joint efforts of the whole society. Building a market environment that respects intellectual property rights is not only beneficial to Microsoft, but also to the development of the entire software industry and the construction of an innovative society. We will continue to actively cooperate with the competent authorities and work with industry partners to promote intellectual property protection and protect users from pirated software.

Thank you for your interest and support to Microsoft.

Microsoft (China)****.

23 October 2008.

This condition can be caused by:

1.If the power cord or ** cable of the monitor is loose or poorly contacted, resulting in interrupted signal transmission, the monitor will automatically enter sleep mode and go black, and after a period of time, the signal will be detected again, and it will automatically recover. In this case, you can check whether the power cord and ** cord are plugged in tightly.

2.The monitor's refresh rate or resolution is set incorrectly, causing the monitor to not display properly. You can check and adjust the refresh rate and resolution in your computer's display settings.

3.The graphics card driver is outdated or corrupted, causing the monitor to not display properly. You can try updating the graphics driver or reinstalling the graphics driver.

4.The display itself has hardware failures, such as aging of the electrical accompaniment, lamp failure, and so on. In this case, you need to contact the manufacturer or maintenance personnel for maintenance.

If none of the above methods can solve the problem, it is recommended to contact the manufacturer or professional maintenance personnel for testing and maintenance.

Reasons for the black screen of the computer display:

1. The power of the power supply is insufficient.

1. The display will not start normally if the display is too old or consumes a lot of power.

2. The external power supply voltage is unstable, too high or too low, which will cause the display to go black.

2: The switching circuit is damaged.

1. The failure of the display switch circuit is the main fault problem of the black teaser screen.

2. Short circuit of power supply or damage to peripheral circuit components will also lead to this problem.

Three: the outgoing circuit is damaged.

1. The problem of black screen will also occur when the output circuit or picture tube and power supply circuit are faulty.

2. Shanzhou friends, especially which inferior display high-voltage packs are more likely to be damaged.

You can try the following things when your computer monitor screen goes black:

The first thing to do is to check whether the circuit connection of the monitor is normal, and if you have a stronger hands-on ability, you can also check whether the connection between the motherboard graphics cards is normal, and you can try to reseat the graphics card.

After checking the hardware device of the machine, if there is still a problem, you can connect it with another monitor or graphics card to see if it is a problem with your own device.

What also needs to be checked is whether the CPU fan is rotating, whether the output of the voltage can be measured through the multimeter is normal, and if there is an abnormal problem, the power supply needs to be replaced.

If it is a CPU or motherboard problem, it is basically only possible to replace the CPU and other hardware, if it is a system problem, we can make a system disk through a USB flash drive to reinstall the system for the computer, pay attention to use an empty USB flash drive to operate.

1.Check whether the cable between the monitor and the host is loose, and it is best to plug and unplug it again; @

2.When the coldest or hottest time of the year is often due to heat expansion and contraction, etc., resulting in some poor contact problems, you can open the case and re-plug the graphics card, memory, sound card, etc., to ensure good contact;

3.Regardless of whether the monitor is normal or not, pay attention to the sound of the host, if the sound of the host is normal, it means that the monitor must be not connected well; If there is a beep tone, pay attention to how many sounds, whether it is a short or long tone, consult the computer company, and you will know which accessory is the problem.

Is your display an old-fashioned CRT display, or an LCD LCD, LED display?

The monitor was lit up and black, and kept going on and on, which happened with my previous CRT monitor. But in the end, the reason I found was that the fuse under the power switch knife in my house was not in good contact, which caused the voltage to be unstable. (Also caused by the home appliances:.)

Refrigerators, TVs are not working) So, I recommend that you first check that the power cord connection of the monitor is firm and reliable. In addition, the solder joints of the electronic components in the display are soldered, desoldered, and the contact is poor, which can also cause this phenomenon, but this kind of maintenance requires certain technology.

Generally speaking, the black screen is caused by voltage that causes the capacitor on the graphics card to be damaged or the GPU is not in good contact.

Such a problem should be that the memory module is loose, take it apart and plug it in again, and there will be no problem.

It's possible that the graphics card is loose... Disassemble the chassis and remove the graphics card and memory to wipe it.