You turned on your laptop and horrors upon horrors, the screen is BLACK! You see that the laptop has power but besides that nothing is happening. I want you to know that there is a very good chance you can get out of this situation quickly and without any cost. This fix works on all brands of laptops:

1、Check the power source. While you have presumably already attempted to turn your laptop on and off, the problem may lie with your ac adapter for laptop. Is the power-indicator light on the adapter on? If not, your problem may lie here. However, whether or not you have a power indicator light on your adapter, consider unplugging it and plugging it into another outlet. This may turn on your laptop and take care of your blank-screen problem.such as “dv8000 ac adapter”

2、Check your brightness settings. While it seems like a simple oversight, the brightness on your laptop may sometimes be turned all the way down. Thus, the screen appears to be black, off or defective, when the problem is simply that the brightness is on its lowest setting. To fix the brightness, check your laptop replacement keyboard. Most laptops have the brightness settings mapped to two keys at the top left of the keyboard, accompanied by a symbol (often a sun). Use these keys to fix your brightness, but keep in mind that some laptops require that you press the Function key at the same time as the Brightness key.such as”HP 365485-001 Keyboard”

3、Check the status of your laptop battery itself. There should be a battery indicator on the laptop that is connected to the battery. This indicator is either on the bottom of the laptop or (likely) on the side. If there is no indicator, your laptop battery itself may be the problem, and may require replacing. Keep in mind that older batteries of the nickel-cadmium variety are more likely to decharge over time and forget their initial maximum charge level; this may be a particular issue to users of older laptops.such as”Dell Inspiron 500M Battery”

4、Find a VGA connector and hook up your laptop to an external monitor if the above steps have not alleviated the blank-screen problem. Turn on the computer and the external monitor. Does the external monitor light up? If so, the blank screen is likely due to a video subset problem/LCD Panel problem in your laptop.

Acer Aspire One A150 LCD Screen Panel,8.9-inch LCD Monitor

5、Consider that a deeper problem may exist if the external monitor did not light up This problem may lie

in the motherboard. In this case, taking the laptop to a professional repairman or sending it off to the manufacturer is recommended.