What to do if the computer has no signal and cannot turn on the screen. Detailed introduction: How to deal with the problem that the host is turned on but the monitor screen is black and does not light up.

php editor Youzi will introduce to you the solution to the problem that the computer cannot turn on the screen when there is no signal. When the host is turned on, if the monitor appears black and does not light up, it may be due to a variety of reasons. First, you can check whether the connection cable is tightly plugged in and try to reconnect it; secondly, check whether the power supply is working properly and you can try to replace the power cord or plug; in addition, you can also try to connect other monitors or TVs to determine whether it is a problem with the monitor itself or Problems with other hardware. If none of the above methods work, it is recommended to contact a professional for repair.

When the host connection of the monitor data cable is loose or has poor contact, the computer monitor may display no signal. Solving this problem is relatively simple, just check whether the computer data cable has fallen off and reconnect it. If the contact is poor or the data cable is damaged, you can consider replacing the data cable with a new one.

2. Loose memory modules or too much dust can also cause the problem of no signal on the monitor. When the host is running normally but the monitor has no signal, we can try the following steps to solve the problem: First, power down the computer and unplug the power cord. Then open the main case and find the memory module slot. Next, gently remove the memory stick and use a soft paper towel or cotton cloth to clean the dust on the surface of the memory stick. Make sure the memory module is clean and free of dust. Then, reinsert the memory module into the slot, making sure it is tight and secure. Finally, reconnect the power cord and start the computer. If everything is fine, the monitor should be able to display the signal normally. By cleaning the memory stick and reinserting it, we can solve the problem of no signal on the monitor.

3. The display screen is faulty. This can also happen if the monitor itself is broken. Generally, if there is no signal on the monitor, it is most likely due to an abnormality in the high-voltage board, a fault in the backlight circuit, or a fault in the AD driver board. These faults generally cannot be solved by oneself. It is recommended to find professional maintenance personnel for maintenance. If the fault is too large and repair is cost-effective, you can also buy a new monitor directly.

4. A motherboard failure will also cause you to be unable to boot and display no signal. This cannot be solved directly. It is recommended to contact professional maintenance personnel for home inspection.

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