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Sony vio pcg7z2L

Hi I have a sony vio pcg7z2L the screen of the laptop flick nonstop please help thanks..

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  • Hector Santos Jun 27, 2009

    Thank you for the reply geekman, but the problem with my laptop`s screen is like when a tv set has no signal and is trying to get signal flickering please let me know if you have any other solution. thanks for you help.. sinc. Hector

  • Hector Santos Jun 28, 2009

    thanks for the reply, I did conneted my laptop to a external monitor but it did`nt show anything on the monitor .

  • Hector Santos Jun 29, 2009

    Thanks geekman I did try it ona external monitor but nothing was showing. I`m just going to wait., but thanks a million for your time and effort god bless you..

    sinc. Hector



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You could have a faulty inverter, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out
for parts, repair service and DIY info.

Posted on Jun 27, 2009

  • Chris Hingee
    Chris Hingee Jun 28, 2009

    Did you try to connect an external monitor to your laptop do the tests as I suggested and what was the results?

    Did you get a steady image on the external monitor?

    The flickering image can be a faulty CCFL lamp or a faulty inverter as I previously advised.

  • Chris Hingee
    Chris Hingee Jun 28, 2009

    I assumed you powered up the monitor first before the laptop as it will automatically divert the video data to the external video port first.

    If you didn't get a image on the external monitor then you have a video card problem. The video card is part of the motherboard and is not easily fixed, except a replacement motherboard. This may not be a cost effective solution and it may be better to put your money towards a new laptop.



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