![]() ![]() Up, and it changes when you move the mouse and click on an icon, it's not If there is a very dim image of your Windows desktop barely visible on power Sure that the video adapter, if it is a daughter card, is firmly connectedĭo you get just a ghost of an image of the Overheating and lost contact with the motherboard. To the video processor, which may have failed or broken the solder due to Or the backlight (and inverter on CCFL models). This point, the problem is not in the cabling through the hinge to the LCD, Since you checked with an external monitor before reaching Thirty seconds after turn it on, it's probably booting Windows, but the video If a system with a stone dead screen is still making hard drive sounds Of the laptop body or on the top near the power switch, depending on the You should also watch for any sign of life from the LEDs on the front Any sound counts here, a hard drive, a DVD drive seeking, aįan. They have a solid state hard drive and don't spin up the cooling fan until Laptop? Most laptops will make some noise when they are turned on, unless On Fn-F5, Del Fn-F8, Compaq Fn-F4 and Sony Fn-F7.Ĭan you hear any mechanical noise from the Use in combination with "Fn." Lenovo (used to be IBM) commonly uses Fn-F7,Īcer is all over the place, with F3, F5 and F8, Toshiba is pretty standard Most laptops do this withįn keys, and display a small image of two monitors on the key you need to Some require you to manually switch to the external monitor, eitherĪt boot time or through a special key combination. Turn the external port off by default, or autosense if it is connected atīoot. Techniques to deal with the external video port over the years. Laptop models and manufacturers have used different Of course, you need to make sure the monitor you areĬonnecting is good before trying it. Laptops all include an external video port forĭocking, usually a 15-pin three row VGA connector, though DVI connectorsĪre also possible. Is the screen live on an external monitor?īefore you make yourself nuts taking apart a laptop that doesn't displayĪnything on the screen, connect up an external LCD and see if the laptop As longĪs the screen lights up and displays some text or image, you know that the With security, you need to get passed this point with them present. My own Toshiba laptop has a fingerprint scanner that asks for a finger swipeīefore anything else happens, so if you're servicing a laptop for a customer Of the screen telling you the required key(s) to hit to enter CMOS Setup. Laptops that skip a splash screen with a company logo like Lenovo, Toshiba,ĭell, etc, should still display a little text message on the top or bottom Stays for a few seconds before going blank Windows starts to boot. That appears on most laptops is the manufacturer BIOS splash screen, which The text below cannotĭo you get a live screen? The first screen Note that these steps correspond with decision points on the flowchart andĪre reached through the interactive diamond symbols. The diamond symbols are linked to text that explains each decision point. People with limited experience systematically troubleshoot their laptop hardware I wrote The Laptop Repair Workbook to help There are simple tests you can do without special tools to narrowĭown the possibilities, and often you'll find that the problem can be easilyįixed without expensive part. The only way to avoid wastingĪ lot of money and time on parts swapping is to properly troubleshoot the That it doesn't solve their display problem. I can't tell you how many people e-mail meĪfter buying a replacement LCD (for a bargain price) on eBay, only to find ![]() Warning! Before Disassembling Laptop always unplug power and remove Laptop Screen Dim, Blank Or Black - Notebook LCD Display Monitor Problemįun, intelligent SciFi without wars or potty-mouth heroes. ![]()
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