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

This article will explain in detail how to solve the problem that the laptop screen is not lit but has been turned on. The content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Notebook computer display is not bright but has been turned on the solution: 1, a comprehensive check of the connection between the computer monitor and the host computer, re-plug each connection to see if there is a connection problem; 2, the chassis for dust treatment; 3, check the memory card, graphics card, CPU, motherboard and other faults.

The solution to the laptop screen that is not lit but is powered on:

1. First of all, we conduct a comprehensive check of the connection between the computer monitor and the mainframe and reseat each connection to see if there is a problem with the connection. If the fault still exists, then we need to open the chassis to see if it contains metal and other substances, causing a short circuit in the mainframe of the computer, and then we smell the computer to see if there is a smell of scorching, to see if there are damaged components around the motherboard and around the CPU.

2. After checking the whole chassis, the chassis is not abnormal, so we will deal with the dust of the chassis.

If the computer cannot be turned on, then use the minimum system method to unplug the data cable of the hard disk, floppy drive and CD-ROM drive, and then check whether the computer can be turned on. If the computer monitor shows a boot screen, the problem lies in these devices. Then connect the above several devices to the computer one by one, when connected to a certain equipment, the fault reappears, indicating that the fault is caused by this equipment, and finally focus on checking the equipment.

3. If the fault still exists, it is likely to be the fault of memory card, graphics card, CPU, motherboard and so on. At this time, we only need to plug and unplug the hardware, or replace it again, and try to find the reason one by one.

If the memory, graphics card, CPU and other equipment are normal, then discharge the BIOS, use the isolation method, place the motherboard outside the chassis, connect the memory, video card, CPU, etc., and test if the computer can display, and then install the motherboard into the chassis to test until the cause of the failure is found. If the fault remains, the motherboard needs to be returned to the manufacturer for repair.

4. When the computer starts up, there is no display but there is an alarm. When the computer starts up, the system BIOS starts to perform POST (Power-on self-Test). When a fatal error is detected in a device in the computer, the loudspeaker is controlled to report the error. As a result, there may be a failure that the alarm sound is not displayed when the system is turned on. For the computer boot does not show that there is an alarm sound fault can be based on the meaning of the BIOS alarm sound, to check the fault of the equipment, in order to troubleshoot.

On how to solve the laptop screen is not bright but the problem has been shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.