Screen turn off, screen turn off

My MAC 27 '' desktop sunddely turn off and I have to click on botton on/off....after.....on keybord.....
The screen appears for 5 seconds...then...turn off.
How to fix that error?
Fabianna

A reset may help. Tap and hold the Home button and the On/Off buttons for approximately 10-15 seconds, until the Apple logo reappears. When the logo appears, release both buttons.
No content is affected by this procedure.

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Satellite A300D-15B - Screen turns between on and off

Hi, I've been having some problems with my laptop's screen; it's an on-off thing, however during these past few days it has become worse.
Whenever I tilt my laptop screen past a certain point, it turns black. However if you shine a bright lamp at the screen, you can still see and tell that the screen is still on, just very very very dark. However if you tilt the screen forward again, it comes back on / light backs up.
Sometimes, it's more troublesome and it requires me to repeatedly and simultaneously tilt the screen forwards and backwards before the screen comes back on.
As mentioned, it's worse now as the tilt angle of the screen has to be low for it to stay on (as opposed to before where the angle of the screen for it to stay lit was okay as it didn't require me to kind of bend over), tilt it any further back and it turns black again. Any ideas for a self fix? I called up Comet (the store where I bought this laptop from) regarding a repair and was quoted a waiting time of 21 days maximum; I would gladly send it in as it saves the self hassle but I need my laptop for these next 2 months for work and studying.
Thanks

Hi buddy,
I agree with the user above. Theoretically the internal LCD cable could be the reason only for this issue. If it works only on a certain point, it seems to be a loose connection of this cable.
You should ask an authorized service provider. The guys can order a new cable and exchange it.
I believe such a cable isnt so expensive
By the way: Here you can search for nearest authorized service provider:
http://eu.computers.toshiba-europe.com > Support & Downloads > Find an authorized service provider

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Connect to iTunes and restore. If you have difficulty, you may have to put the device into Recovery Mode. See the instructions in this support document. If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support

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Hello kumarsenthil210317
Check out the article below to start troubleshooting issues with touchscreen response.
iPhone, iPad, iPod touch: Troubleshooting touchscreen response
http://support.apple.com/kb/ts1827
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My iPhone is fully charged and just gives me a blank screen and will not turn off, what do I do?

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Reset the phone like the manual says: hold the on/off switch and the home button simultaneously until the Apple logo appears. May take up to 30 sec

I tried to soft reset my ipod touch with the top button and the screen button. it turned off and went to the blue screen with the apple. now it won't do anything-it has stayed on that scren for 4 hours now. does anyone know how i can fix this?

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See Here for
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Restart.. Reset.. Restore...
Try this First... You will Not Lose Any Data...
Turn the iPod Off... ( if it isn’t already )
Press and Hold the Sleep/Wake Button and the Home Button at the Same Time...
Wait for the Apple logo to Appear and then Disappear...
Usually takes about 15 - 20 Seconds... (But can take Longer...)
Release the Buttons...
Turn the iPod On...
If that does not help... See Here:
Backing up, Updating and Restoring
http://support.apple.com/kb/HT1414

My daughters iPhone is frozen with the apple showing on the screen. We have turned it on and off but it is still stuck on that screen. Any ideas why or how to correct this?

My daughters iphone4 is frozen to a blank screen with the apple on it. We have turned it on and off and it still remains on this screen. We cannot access gef phone at all. Any idea why this is happening or how to correct?

connect it to the computer/itunes you normally do.

Ipod 4 is displaying blue frozen screen and black screen with apple logo. I try to turn power off but as soon as it goes out it automatically reboots. Plugged it into the usb port on my mac and it doesnt do anything. It doesnt appear in Itunes. Help?

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Let the battery fully darain. After charging for an least an hour try a reset and restore. Use Recovery mode if necessary.
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Try these steps: http://support.apple.com/kb/ts3281

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Did you try a reset?
iPod touch User Guide (For iOS 5.1 Software)

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... then run Disk Utility, Repair Disk.
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Resolve startup issues and perform disk maintenance with Disk ...
Mac troubleshooting FAQ: start-up woes
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Screen turn off, screen turn off

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