Having problems with your Sony VAIO Notebook ?

I have a problem with my Sony Vaio VGN- FZ112 laptop which I have bought over 2 years ago (therefore no warranty on it). I cannot start the laptop. When I press power on button the light switches on, every possible light switchs on, but the actual screen stays black. I am lost as to what can be the problem apart from a hardware issue?


Answers :

You could have a defective screen - a defective inverter or a CCFL lamp, follow this to determine the fault.

Defective CCFL backlight, it may have the following symptom:


\015\012
    \015\012
  • Screen flashs on red/pink and off. \015\012
  • Picture stays on in red and slowly be come normal. \015\012
  • Picture flickering with dim display. \015\012
  • 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 it up, 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 www.lcdparts.net for parts, repair service and DIY info.
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