Having problems with your Acer Aspire 6920 Notebook PC ?

My laptop screen goes blank everytime i turn it on


Answers :

Take a very close look at the screen after it goes dark, use a flashlight and try to light the screen up from the bottom. Can you see any indication of anything on the screen? It may only appear as a slight shadow or line, but you have to look close to be sure. This way we can tell if it is just the inverter which supplies the backlight bulb with its correct voltage to light the display or is it a motherboard problem where you are having a power down issue from the graphics chip. The best way to start troubleshooting is to attach an external monitor to the laptop with a VGA cable, it will plug into the vga port on the laptop. If there is no motherboard issue, the laptop will recognize the external monitor and try powering the signal to the display. You may have to direct the laptop to use the external by holding down the Fn key and tap the appropriate "F" key that corresponds with swapping displays. This key is usually signafied by two tv symbols seperated by a slash mark. If you get a picture on the external, my bet is that your lcd inverter has failed and needs replacing. They can be purchased on ebay for under 20 bucks. Usually you just have to remove the bezel from around the screen to replace the inverter. It sits under the screen and is connected on both ends by a small cable which simply plugs into either end. Taje your time and maybe take the laptop into a dark room and try to light the display up with the flashlight....if there is no way a picture, outline shadow or anything can be seen, there might still be a chance it is still the inverter but if there is no picture on the external monitor even after changing the input on the laptop, you may be looking at a mainboard failure at the graphics card or video processor.
1. Make sure you are running the latest version of BIOS. Download and upgrade the BIOS if needed, it might have a fix for your intermittent video problems if you have one.
\015\0122. It’s possible that the video cable is not making good connection with the LCD screen or motherboard. Reconnecting/reseating the cable might help.
\015\0123. Could be bad video cable or LCD screen. You may need to get it serviced to address these options..
Repair Help & Product Troubleshooting for Acer Aspire 6920 Notebook PC

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