Troubleshooting A Laptop Screen Dim

You wake up one morning, open the laptop screen, only to see black, but the computer is clearly linked, because you can hear the fans. If you look closely, you can see a small preview of what is on the screen, and if you shine a flashlight, you can do almost all images and text.

This is a very common problem with laptop screens, and generally have only two possibilities of the case: the backlit screens went bad, or drive the light back awry. The backlight is basically a fluorescent lamp that is behind the screen and lights enough to see everything clearly as you normally would. These lamps can go wrong from time to time causing your computer screen to go black, and show only a slight outline of objects. The aim of the inverter to convert the DC power rear of your laptop battery to AC power, which is necessary for its light back to work. If the player goes wrong, the correct voltage is supplied to the light back, so do not enlightening, causing a very small screen. Sometimes, there are ways to determine if your light to blame, or inverter fault, just the way your screen actions. Normally, when a backlight goes wrong, it does not light at all, or it illuminates the reddish tone screen that can normalize as you continue to use your laptop, it is easy to diagnose if you experience reddish rejecting the video card. To clear the video card, simply connect an external monitor to the VGA port on your laptop that is on the back or side of your laptop. If after connecting to an external monitor, you do not see color distortion as you did before, you know that your taillight must be replaced, if you still see the same distortions on the external display, and then trim your video damaged. To provide an accurate diagnosis, you should test your inverter and backlight. First, to test their light back and drive, you must have another laptop that has a fully functional screen that does not mind opening. Now you have access to the screen of your laptop. To do this, remove the rubber screw caps around the screen with a screwdriver, and put the glue side on wax paper to protect the adhesive. Then remove all the screws around the screen and set them aside in a safe place. Then move your finger under the frame around the screen to remove the panel.

A cable comes from the laptop base and provides DC power to the UPS. The other cable (s) off the screen, and connect the light (s) back. If you see more than one cable that comes from the login screen on your disk, this means that your laptop has more rear lamps.

Since your two laptop screens laptop and test damaged are exposed, we will test the reader into the damaged laptop. Do this on both laptops, remove the cable (s) will each screen to the inverter. Do not remove the cable that runs from the base of the laptop to the inverter. Place both laptops very close to each other and connect the cable to the light back on the damaged laptop in a laptop inverter test. Connect the two laptops on. If you can see everything as bright as normal in the damaged laptop, and it will not darken again after a short period of time, replace the damaged disc into your laptop. If the damaged laptop screen is still small, and you can still see a small preview of objects on the screen, then your light (s) back to be replaced.

You should also test drive the damaged laptop to make sure that does not need to be replaced. To do this, make sure first that the two notebooks are off, then disconnect the laptop cord broken backlight inverter test cell. Now turn the light back laptop test the damaged laptop inverter. Connect the two laptops on. If the image on your laptop screen test is as bright as normal, it means that your player is fine and does not need to be replaced. However, if the screen on your test laptop is now lower than damage your laptop, drive your damaged laptop must also be replaced.
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