Question about Sony VAIO VGN-UX280P Notebook

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Blank Screen In the display settings, I inadvertently disabled the screen in the advanced settings. I boot up, the Windows Welcome graphics appears, etc. Then, when the desktop usually appears, confirmed with the Windows "3 note" start sound...I get nothing visually. I've tried unplugging the power cord and taking out the battery - nothing. I've tried getting into the computer in order to remove and reseat the cpu, but can't get into the dang machine. Thanks for any assistance!

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LOL- sorry, have done similar but it's been a while. Accidently 'removed' the keyboard. . .
Too bad you opened your notebook, most are too tempermental to open unless it is unavoidable. You removed 'the battery.' The battery pack doesn't keep settings alive, but the backup battery does and if it isn't a 'super-capacitor' it will be a 'coin' cell held in a fitting so it can be replaced without destroying anything. That cell keeps the CMOS alive and that is where your settings are stored. Normally, near that battery (or the mentioned capacitor) there will be three pins with two of them bridged currently with a jumper. If this is removed and used to bridge the center and other previously unused pin, this will kill the CMOS settings so any custom stuff you set up will go away.
You might want to try accessing the BIOS menu first though- Since everyone disagrees about which key should be used to access the BIOS, there ain't no frigging standard. Sometimes it's F1, sometimes Escape, sometimes it takes two keys. Whichever it is (you might look at Sony's website or your manual to learn which it is), you must tap several times or hold down the assigned key to open the BIOS menu.
In a section (which is also named differently depending on the position of the planets), you should find mention of 'Video' and some choices on what you want it to do. Look until you find one that involves both the internal and external video settings and turn on the VGA port accessible from the connector on the back (or side or wherever they decided to stick it). You may find the setting for the internal LCD display is turned on already so this means it's stupid Win that has let you go blind.  
Someone you know still has a separate monitor sitting around and you will need to borrow it so you can turn your internal display back on.
This may not help if the external VGA port is not currently enabled as described above. 
Good luck - it probably isn't the last stupid thing you'll do; I just try to keep my average to less than once a day. 

Posted on Jan 10, 2009

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