Shulou(Shulou.com)06/03 Report--

In this issue, the editor will bring you about how to solve the problem of computer white screen. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

1. Enter the safe mode, move the important content to another disk, and directly choose to restore or reinstall the system.

2. Enter the safe mode to conduct a comprehensive virus inspection.

3. Check the hardware, reseat the memory, and check whether the hard drive is broken.

Solutions and maintenance ideas for white screen of display

First of all, rule out whether it is a video card problem or VGA line problem, you can replace a VGA cable and a good monitor connected to a white screen failure of the host computer, to see if it is still white screen. If it is still a white screen, it is a problem with the mainframe of the computer, most of which are caused by poor contact or malfunction of the graphics card, but in most cases this rarely happens, and most of them are connected to a good monitor is normal. then we can know that it is caused by the failure of the monitor. The solutions to the white screen phenomenon caused by poor display are as follows:

1. First take apart the shell of the LCD display screen, and then check whether the screen cable interface is loose or not connected properly. It is checked that the connection of the screen line is normal.

2. Then turn on the power switch of the notebook computer, and then use the multimeter to measure whether the power supply voltage of the screen-line interface is normal. If the supply voltage is normal, go to step 5; if not, then check whether the safety resistor or inductor near the output end of the screen line is open or damaged. If it is damaged, just replace the damaged components.

3. If the safety resistance or inductance near the output end of the screen line is normal, then check whether the output voltage of the DC-DC voltage conversion circuit supplied by the LCD display is normal. If the output voltage is abnormal, check the safety resistors, PWM controllers, switches, inductance coils, filter capacitors and other components in the power supply circuit, and then replace the damaged components.

4. If the output voltage of the DC-DC voltage conversion circuit is normal, there are damaged capacitors and other components between the output end of the DC-DC voltage conversion circuit and the screen line interface, and the damaged components can be checked and replaced.

5. If the power supply voltage of the screen line interface is normal, then check whether the timing signal and drive signal in the LCD panel drive circuit are normal. If it is abnormal, check the output signal, input signal and power supply voltage of the chip that produces this signal respectively, so as to judge whether the driver chip is damaged or not. If it is damaged, it can be replaced.

The above is the editor for you to share how to solve the computer white screen, if there happen to be similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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