Basic Solution For Laptop VGA Problem if it’s not built-in

Author: udtekadapter

Author: udtekadapter

Basic Solution For Laptop VGA Problem if its not built-in Try to check your laptop VGA connection with motherboard properly if it is connected, then try to disconnect the VGA and then reconnect the VGA. In most cases this technique solve the problem if VGA has no problem if your laptop still not display anything then try another approach for problem solution. Diagnosing Laptop Display Problem. The first thing to check in cases of complete video failure is the power status. If you can always hear your laptop fan when you turn on the laptop and now you cant its not a video failure, its a power (Power Supply Dell Inspiron 630M AC Adapter) or main board failure. The next troubleshooting step is to connect an external monitor with a standard VGA connector, whether a CRT or an LCD. If your notebook wont light up the external monitor, its extremely likely that either the motherboard or the internal video adapter (if its not part of the main board) has failed. If the video adapter is a discrete component and you can find a replacement for under $100, it might be worth gambling on replacing, but its almost never cost effective to replace a main board. There is a small chance that the internal connection to the external video port has coincidentally failed with the laptops own video subsystem, but its not all that likely. If the external monitor works fine, your failure is with the laptops video subsystem, which is usually contained entirely in the screen/lid assembly. There is a decent chance that one of the cable bundles (video signal or power ) that run through the hinges to the video subsystem has failed, so unless the failure is obvious (cracked screen, fading in a corner, faint image, bad pixels), you should still open up the main body of the laptop as well to visually inspect the connections. The easiest problem to identify is obviously a cracked LCD, but a slowly increasing number of dead spots or whole rows or columns on the screen indicates the actual LCD assembly is bad. Replacing the LCD is pretty much the same on most notebooks, Dell has a nice backlight design, and the real challenge is getting the lid open and removing it without breaking anything. If your screen brightness seems to flicker or sometimes is bright and sometimes almost fades out completely, even then the unit is plugged into the wall (dont get fooled by power saver mode Dell INSPIRON B120 AC Adapter), then you probably have a failing inverter or backlight. Between the two, the inverter is several times more likely to fail, it plays the role of the solid state ballast in modern fluorescent lights. The backlight itself is a CCFL (Cold Cathode Fluorescent Lamp) with a very long meant time between failure, while whole generations of inverters have been lemons on some laptop models, you can easily research your model on Google. I did an illustrated guide to how to replace an inverter or backlight on a Toshiba notebook; the process is similar for any laptopAbout the Author:

Udtek.com delivers high quality laptop batteries, laptop AC adapters, Laptop keyboards, Lcd chargers, DVD drivers, Scooter chargers and more. Our unique product lines of over 1000 diverse accessory power products and replacement batteries and adapters provide our customers with an extensive selection of the best quality products available.

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