Sony laptop screen became dark

Hi guys
I have a sonly laptop, running windows XP. It was running fine for a year, Nothing has been changed except windows updates but suddenly from yesterday the screen became dark. It's not tallaly blank. I can see everything but faded away.

I tried to use advanced option, color management but it could not bring it back to normal state. any help will be really appreciated.

Thank you
distant_memoryAsked:
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Computer101Connect With a Mentor Commented:
PAQed, with points refunded (125)

Computer101
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StealthMulletCommented:
~Unfortuantely this means the backlight behind the display has failed and needs replacing contact the vendor to organise a repair is the only real option.
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Huseyin1Commented:
Hi

I think if the back light has gone then you wont see anything at all, so I'm thinking your running of the battery and the power supply is not working, make sure the green light on the power supply is on and on the taskbar put the mouse arroew over the battery/power icon and see if it is charging, if its a battery picture with a percentage then the power is not working, try another.

Is the battery charging?

H
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StealthMulletCommented:
Incorrect, with the backlight gone you would still be able to discern your desktop on the monitor but it would appear to be very dark - as his original problem describes.
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jhanceCommented:
Welcome to the wonderful world of Sony Vaio computers!  These are perhaps the coolest looking (apart from Apple) but most poorly made and supported laptops by a major manufacturer ever.

If you are still under warranty, good luck getting factory service.  But that about your only option.
If you are not under warranty, Man Machine (http://www.man-machine.com/laptopservices.htm) does a great job repairing backlights.
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jhanceCommented:
BTW, I agree with StealthMullet here.  A failed backlight still leaves the display visible.  Light from the room still reflects off the back of the screen and you can see a faint image.  It's useless for normal use but you can at least see that the LCD itself is working.
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StalkerGTCommented:
If you can try rebooting the computer and when you see the sony screen try going into the BIOS, usually by pressing <DEL> or <F2> if you still see the problem here try plugging and unplugging the ac adapter any change... if the problem continues I dont think you are going to have any problem having the LCD replaced, provided that the compute is still under warranty
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marie027Commented:
It's very likely that your LCD has gone bad and needs to be replaced.  You can troubleshoot by plugging in your laptop to an external monitor.  If you are able to see an image on the external monitor, then chances are you just need to replace the LCD.  If this is the case, hopefully your laptop is still under warranty, because the LCD is one of the most expensive components to get replaced.
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jhanceCommented:
Just re-iterate and to contradict bad information being posted here.

Your LCD is NOT bad, you BACKLIGHT is bad.  There is a HUGE difference in repair cost.  A new backlight is about US$100.  A new LCD may cost more than a new laptop.
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bluehairedCommented:
Distant_memory,
I believe this has to do with the automatic power saver on your Vaio. This happened on one we have. I thought it was the backlight too. If I recall correctly it's one of the function keys. i.e. f10. or f11 that will enable you to turn the brightness back to it's correct state.

Hopefully this is the issue and you won't have to shell out any $$.

Have a better one.


bluehaired
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distant_memoryAuthor Commented:
Thank you very much all of you for your response.
From the above replies I came to know it was a problem with backlight but I could not figure out what to do next? so I called the Sony Technical support. My warranty period was already over, had to pay few bucks.

OK, here how the problem was solved. Hope it will help someone in the future.

1. Start the laptop
2. Press F2 to go to BIOS settings
3. Press fn and F5 together  
4. Press right arrow key

These four steps solved my problem. If it were not to solve then I had to send to them for repair.
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bjkoCommented:
Very often these backlight problems can be solved with the use of a soldering iron, locate the circuit board
that generates the high frequency voltages for the backlight, check the circuit board for bad soldering.
Because of the high frequency the soldering has tendencies to become bad around the transformator due to
vibrating at high frequency.

TheDanishViking
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v-2bmarrCommented:
Your LCD light problem is caused by one of 2 things. Either the light itself is burned out or the switch that turns the light  off when you close the laptop has broken. This can be determined and fixed by a repair shop for less than the cost of a new laptop.  
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