Question about Sony VAIO VGN-FS742/W Notebook

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Screen goes dark, for no apparent reason - Sony VAIO VGN-FS742/W Notebook

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Your problem is in regards with the inverter,maybe there's a lose connection between the inverter and the LCD or your inverter need a replacement.

Posted on Sep 04, 2009

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SOURCE: Screen starts to flicker or goes dark for no apparent reason

Is your laptop plugged in when it flickers. If so it could be the power source gets disconnected then recinnects.

Posted on Aug 26, 2009

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I thought I asked this already but it does not show up. I have a 15" lcd tv that will only stay lighted for a few seconds on each channel then goes dark. I can kinda see a image on the dark screen. I...


the backlight is either going out or the capacitor for the backlight is bad to where its not storing enough power to run the backlight the start capacitor must be good but the run capacitor might be bad usually the backlight itself goes bad but not if it turns on for a few seconds it would have to be the capacitor.

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Look for bad caps in the power supply, it will get worst and can take out the inverter fuse and the MOSFET.
http://www.instructables.com/id/How-to-repair-a-Westinghouse-L1975NW-19quot-LCD-/

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I'm not really sure I understand.
You apparently are able to turn the laptop on.
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Dark Screen and flickering black screen


I am having the same problem and I think it is the bulb in the TV or the board that the bulb is on. Only had mine for 4 weeks!! Apparently this is a common problem with LG TV's that occur as often as 3 times a year with a minimum cost of £290 just for the bulb!! Wish I had known that before I bought it!

Would recommended contacting the store you bought if from and ask them to repair it seeing as it is so new, I am awaiting the engineer at present!

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