No matter what brand of notebook, Acer, Lenovo, HP and so on, there are screen flicker problem may arise. And the causes and solutions are similar. This article mainly uses Acer laptop as an example to introduce the problem of the flickering of notebook screens and the solutions.

       There are three common causes for the Acer laptop screen to flicker: screen flicker caused by screen backlighting and screen flicker caused by the motherboard charge-switching circuit, as well as the quality of the screen itself.

1、Screen flicker caused by screen backlight

       Failure performance: Acer notebook backlight flashes from time to time, frequency is very fast, sometimes flash several times, sometimes it lasts for a few minutes.

       This occurs because the high-voltage board that supplies power to the backlight of the screen is not stable, or the solder joint at the lamp connector is not firmly connected.

       The screen flicker caused by the high voltage board can replace the high voltage board to solve the problem. In our daily maintenance, sometimes for the original high-voltage board price and supply reasons have to be modified through the general purpose high-pressure board to achieve maintenance purposes.

       Acer laptop lamp joints caused by the screen caused by the flashing of long time, the consequences are more serious, carefully observe the screen in the lower left corner or lower right corner there will be a small piece of black shadow, this is the joints caused by the welding of the spark has been around The components are burned. It is also not possible to remove this small piece of shadow after repair.

2、 Acer laptop screen charging switch circuit caused by the flash

       Failure performance: Acer laptop occasionally when the battery and power adapter are used at the same time from time to time the screen flashes, while the screen at the lower right corner of the charging indicator will continue to switch, single use of a power supply when the fault disappears.

       This failure is relatively rare in Acer notebook repairs, mainly due to the instability of the components of the battery switching circuit on the motherboard. Repairing the components of the motherboard charging circuit can repair the fault.

       There is also a situation due to the quality of the power adapter caused by, here to remind everyone, Acer notebook power adapter as far as possible using the original, or use some of the better quality of OEM products. Do not rush to use tens of dollars cheaper power supply, this kind of power is held in the hands of fluttering, the quality of its use of materials is generally poor.

3、Screen flicker caused by bad screen itself

       In fact, the flicker of the notebook screen caused by this reason has occupied a large proportion in recent years. The reason why it is put in the end is because this situation is limited to the same batch of several models of notebooks.

       The specific fault performance is: Generally there will be a bright line at the bottom of the Acer laptop screen. After a long time, the bright line will evolve into full-screen flashing. The

If it is still not possible, it may be a hardware problem. It is better not to disassemble and repair it. We should go to after-sales service to find a professional to help repair. This will be more reliable, because the internal components of Acer notebooks are very complex and may be damaged by yourself. Internal components.