Question about Toshiba Satellite A305-S6853 Notebook
When i turn on my computer, the power button light up and the other lights around the keyboard are obviously receiving power, but the screen remains black
Your back-light system may be out or it could be the video section of the main-board.
The backlight is the usual suspect when you see these types of symptoms. To check and make sure there are a couple of things to check. The first way is to let the laptop boot. You may not see the video but it will boot normally to either the login screen or your desktop depending on how your windows was configured. Now what we want to do is get close to the screen towards an edge. You are looking for images of the log on or desktop. They will be very ghost like or hard to make out but they will be a normal screen, you may even be able to see your mouse cursor move around. You can use a a flashlight and hold it near the edge. That can sometimes make it easier to see if you get the right angle. If you can see the image this confirms that the backlight is out. If you can't see anything you should check with the next step before doing anything.
The second thing to check is to hook up the laptop to an external monitor. You should see a normal image. You can use your laptop like this if you had to. If you do not see a image then the problem is the video section on the main board.
If you have warrenty this is covered if it is the backlight or the mainboard. So check that first. If not then you can repair the backlight for $50 to about $150. This is one of those repairs that isn't hard to do. There are several stores that will sell the parts for either problem. If you do a search for laptop repair parts in your search engine you will find several. You can usually find one close or one that has a better price. Most will have instructions or videos on how to do the repair so look at those before ordering any parts just to make sure its something you feel comfortable doing.
With the cost of new laptops being so low you need to keep in mind that the replacement cost may not be that much more than a repair bill if you have someone do it. By the time you add up parts, labour, shipping and taxes it can get up there.
Posted on Jul 07, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
A blacked-out screen doesn't necessarily indicate a broken monitor.
If the computer has run out of charge or is in hibernation or sleep mode,
if the screen is too dark, or if the display cable has come disconnected from the motherboard, the screen may appear black or fail to turn on.
To fix a blacked-out laptop screen, troubleshoot the screen settings, check the LCD connector and see if the computer is awake and receiving power.
Touch the touchpad or move the external mouse to see if the computer is asleep or hibernating. If the computer fails to respond, press "Enter" on the keyboard.
Press the power button if the screen remains black.
Confirm that the power indicator light, found at the front of the computer or above the keyboard, is glowing solid green or blue.
Confirm that the power adapter is plugged into the computer and into a wall outlet. Confirm that battery indicator light is glowing solid green or blue.
Hold down the "Fn" key. Press the up-arrow to see if the screen brightness increases.
Some computers also use the "F6" or "F7" keys to increase screen brightness.
Hold down the power button for 10 seconds to turn off the laptop.
Remove the AC adapter from the computer, close the screen, and then turn the PC over.
Slide the battery latch to eject the battery. Pull the battery out of its compartment.
Turn the computer back over, open the lid, and insert the edge of a flathead screwdriver or other flat, solid object beneath the bezel above the keyboard.
Wedge the edge of the keyboard bezel off of the top cover.
Work your way along the edge of the keyboard bezel to loosen it.
Pull the bezel off the laptop.
Trace the cable coming from the laptop screen to the connector found beneath the bezel. Reconnect the display cable to the motherboard if the cable has come loose from the connector.
Line up the tabs on the bezel with the slots along the top of the keyboard. Insert the right edge of the bezel into the gap above the keyboard, and then push the bezel back in place.
Turn the computer back on. If the laptop screen is still blacked out, connect an external monitor to the video port on the side of the PC to confirm that the video card isn't defective.
If the external monitor works, the LCD screen could be broken.
If the monitor doesn't work, the motherboard or video card might need to be replaced.
Hope this helps
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