What to do if the laptop screen does not light up, how to solve the problem that the laptop screen d

There are many reasons for this problem, one is the poor contact of the screen line, the second is the problem of the high-voltage plate, the third is the problem of the screen, and there are many other possibilities, but most of the above situations are the majority, especially the problem of poor contact of the screen line and the high-voltage plate. In either case, a problem can only be solved if you have considerable operational capacity and spare parts.

As for the solution, if you are in the warranty, you must find after-sales service, but if you are out of the warranty period, you can also disassemble the screen and plug in the screen cable again, in order to rule out whether it is a problem with your screen cable, if it is solved, it is better, if it can't be solved, then it is a high-voltage board, I'm afraid it is not something you can solve, in that case, you can only find a maintenance point. But be warned: be sure to find something a little more formal!

The following is a simple diagram to help users with certain operation skills to operate by themselves.

Note: Unless you have the ability to do the program, it is strongly not recommended to disassemble the machine by yourself.

Notebook screen line sample 1.

Notebook screen line sample 2.

From the above**We can understand that the screen line itself is very fragile, and it is in the position of the screen axis with the most frequent activities in the notebook, and the frequent bending of the notebook LCD screen is the main reason for the damage to the screen line! Therefore, remind all notebook users that the frequency of bending the notebook LCD screen should be minimized in use, and at the same time, the force should be uniform in the bending process, so as to effectively extend the life of the notebook screen line.

There is also the fact that the shape of the screen line of different notebooks is different, so the above ** is only for reference. In the actual operation process, it may be found that there is a very big difference with this figure, and it is recommended to find the after-sales department for maintenance.

The laptop is running and the screen doesn't light up.

The brightness of the laptop cannot be adjusted, and it is possible that the driver does not have special function keys installed, or the driver is damaged.

The screen brightness can be adjusted in two ways: win+fn shortcut keys or internal settings of the system

1. Directly adjust through win+fn shortcut function keys.

1) Find the two function keys on the keyboard to adjust the brightness (F11, F12 for Dell notebooks).

2) Press Win+F11 to dim the laptop screen, press Win+F12 to brighten the laptop screen.

2. The internal settings of the operating system adjust the screen.

1) Right-click on the blank space of the desktop and select "Display Settings".

2) Select Display in the settings interface.

3) Click the scroll bar to adjust the brightness according to the display page.

Reasons why laptop monitors are dark:

1. If there is a problem with the lamp, the aging or short circuit of the lamp will make the display screen dark, if there is a problem with the lamp, it is only to go to the professional maintenance company to change, the aging and short circuit of the lamp are rare, the aging is generally because of long-term use or collision during use (the normal use of the lamp life can reach about 3 5 years), the short circuit is caused by the gold noise wheel in the screen shell, and the screen shell is broken and used carefully to prevent short circuit.

2. The motherboard has no voltage for the high-voltage board, and the motherboard will have problems, aging or short circuits, most of which can be repaired, and the motherboard does not have to be replaced.

3. The high-voltage board is aging or burned out or the power connection line of the high-voltage board is loosened or burned, and the screen darkness caused by the high-voltage board is relatively common, because the high-voltage board works at high temperature for a long time, and the chip will be more likely to age or burn out.

4. The breaking of the screen line is also the reason why the screen is often darkened, because NB is a folding Shengzhixin, and opening and closing the screen with too much force will wear the screen line, and frequent use will easily cause the breaking of the screen line. <>

The solutions to the laptop screen not lighting up include checking whether the laptop is in a sleepy state, eliminating power problems, adjusting the screen brightness, resetting BIOS settings, and replacing the screen to guess the screen.

1. Check if the laptop is asleep.

After a laptop hasn't been used for an extended period of time, your computer may go to sleep, and you can wake it up by pressing the power button, moving the mouse, or pressing any key. If the screen still doesn't light up in this case, it could be due to something else.

2. Eliminate power supply problems.

The laptop screen not lighting up can be caused by a power issue. In this case, you should check that the power adapter is working properly and that the power cord is securely connected to the power outlet. You can also try replacing the power adapter to see if that fixes the problem of the screen not lighting up.

State Eyes. <>3. Adjust the brightness of the screen.

Sometimes the laptop screen doesn't light up, probably because the brightness is set too low. You can press the FN key combination and the F5 or F6 key on your keyboard to adjust the screen brightness and see if that fixes the issue.

4. Reset BIOS settings.

Sometimes the wrong BIOS settings can cause the laptop screen to not light up. In this case, you can try to restore the BIOS settings to factory settings, the specific method varies depending on the manufacturer and model, you need to check the manufacturer's manual or ask for after-sales service.

5. Replace the screen.

If you can't solve the problem that the screen doesn't light up, then you can only consider replacing the laptop screen. If the laptop is still under warranty, you can contact the after-sales repair center for help; If it is not under warranty, you can buy a suitable screen yourself to replace it.

The solution tutorial is as follows:

1. First of all, the black screen caused by the software. Sometimes, after installing some software or hard old software drivers, you may find that it is restarted. The computer can't enter the system, and the screen has been black, which is the black screen of the notebook caused by the software.

If the black screen is caused by software, take Windows as an example. You can restart the machine and press the F8 key a few more times when the machine is turned on to bring up the system's startup options menu.

2. After the system boot options menu comes out, select Enter Safe Mode. If you can enter the safe mode normally, you can delete the software or driver installed before the black screen in the safe mode. Then restart the machine and see if the laptop can fix the black screen issue.

3. The black screen of the notebook caused by the hardware. The black screen caused by the hardware is caused by the following: the cause of static electricity.

Sometimes static electricity can cause the circuit of the laptop motherboard to abnormalize, resulting in no reaction on the screen after the power is turned on. You can try to turn off the battery and power of the laptop, and then press the power start of the laptop several times to let the machine release the static electricity. Then connect the power supply, turn it on, and see if it can solve the fault.

4. The memory is loose or the memory has a hardware failure. There are several major components of a laptop computer, including the CPU, motherboard, memory, and graphics card. These parts are indispensable, as long as one of them has a problem, it will cause the laptop to not function properly, the most common is that the boot does not respond.

In general, the probability of CPU and motherboard failure is relatively small, and it is more common for the laptop to fail to boot due to loose memory. At this time, first remove the battery and power supply of the notebook, if it is not difficult to remove the computer, you can open the back cover of the notebook by yourself and reinsert the memory. After plugging in the memory, power it on again, start the machine, and see if you can solve the fault.

5. The LCD screen part of the notebook is faulty. There are some notebooks that are a little older, and this may be the case. Display components generally include displays, data cables, and some other small parts.

If you have a desktop monitor, try plugging it to the VGA display connector on your laptop, and then switch the display to the VGA external display on your laptop. If you can switch to an external monitor, it means that there is a big problem with the display part.

6. The graphics card hardware is faulty, and the graphics card is responsible for the source of all the display output of the computer, so there is a problem with it, and there is no display on the screen. If the graphics card is broken, the average user can't solve it, and the only way to find the computer's after-sales solution is to make a decision. If the notebook is within the warranty period, it can be taken for free inspection and repair.

The solution to the laptop screen not lighting up is to check the power supply, adjust the screen brightness, check the cable, restart the computer, and replace the screen.

1. Check the power supply.

We need to check if the power supply of the laptop is working properly. If the power supply is not plugged in properly or the battery is low, then the screen will not light up. Therefore, we need to make sure that the power cord is plugged in, or that the battery is fully charged.

2. Adjust the screen brightness.

If the power is normal, but the screen still doesn't light up, then we need to check the screen brightness setting. It may be that we have accidentally turned down the brightness of the screen when using the computer. We can adjust the brightness of the screen by pressing the brightness adjustment key on the keyboard or in the tether sail settings.

3. Check the connecting cables.

If the screen cable is not plugged in, the screen will not light up. Therefore, we need to check if the cable is plugged in. If there is no problem with the cable, then we need to check if the cable is damaged. If the cable is damaged, then we need to replace the cable.

4. Restart your computer.

Sometimes, there may be a problem with your computer's software, causing the screen to not light up. At this point we can try restarting the computer. Restarting your computer can clear the cache and errors of Split Sail in your computer, and sometimes you can solve the problem that the screen does not light up.

5. Replace the screen.

If none of the above solves the problem, then it is likely that the screen itself is malfunctioning. At this time, we need to send the computer to a professional repair shop for maintenance. If the screen does malfunction, then we need to replace the screen.