Question about Toshiba Satellite Pro L300 Notebook

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No display there is power source and no display

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You need to do some troubleshooting here to figure out what the problem is exactly.

1. On all Laptops there is a Fn key and one of the Function Keys at the top row that has a picture of monitors on them. Hold down the Fn Key then hit this monitor function key at the top, usually it's anywhere between I'd say F8 and F11 in most cases. Hit it one time, and wait to see if the monitor lights up. If it does not hit it again. You will want to do this at least 3-5 times and wait for about a good 10-15 seconds between each time.

2. If that does not work, then try hooking up an external monitor to the laptop through the Blue VGA connector on the back of the laptop. (Sometimes these connectors are on the side of the laptop) You can hook up any external monitor to this port assuming you have the right cable. Some laptops come with a White connector that looks different than the blue connector in that it does not have pins. This is called a DVI connector. Most newer LCD's are now converting to DVI connectors, but all LCD monitors can use the blue VGA connector cables. Note: You may have to use the Fn + FKey again to get an image on the external monitor. IF you do get a picture on the external monitor and the laptop appears to operate normally otherwise, then chances are your LCD is dead and is in need of replacement.

Fix 1: Inverter is bad or died - Depending on LCD this can range in price from I'd say $40-$150 to purchase if you are tech savvy you can fix this yourself.

Fix 2: Backlight has died or is bad - Depending on where you shop for it, this part is usually fairly cheap, and if you are savvy enough can be replaced at reasonably low cost.

Fix 3: You are not tech savvy: Take your laptop into a local PC shop, and have them check it out for a bad inverter, backlight, or to confirm rather or not the LCD is dead. Note: LCD replacements can run upwards of $300 or more. I've seen them go as high as $500.

Hope this information helps.

Posted on Jun 06, 2014

  • I forgot to note one more thing of importance: If you still get no picture from the "External Monitor" Chances are your video card is dead. You will need a Motherboard replacement to fix this on any and all laptops. This is often not worth the cost and you may as well buy a new laptop.

  • On rare ocasions failing ram can cause no picture to be seen, but if the PC sounds like it boots up normally, and you hear windows sound if any... chances are it is not failing ram causing the problem. Ram is cheap and easy to replace if this is the case.

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