Question about Computers & Internet
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Posted on Jan 02, 2017
SOURCE: sony vio pcg7z2L
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.
for parts, repair service and DIY info.
Posted on Jun 27, 2009
I doubt it's the transformer as it will not start up if that was the case, it's more likely to be a build up of dust in the air vents and CPU fan.
The best way to deal with this is to buy a can of compressed air and give short blasts through the air vents to remove the dust, the CPU fan is located underneath the laptop and when you come to blast air through that be careful not give it sustained blasts as you can damage the fan blades.
When your happy that all the dust is removed your laptop should stay on for much longer, its always a good idea to make sure the CPU fan is working too.
Posted on Jun 29, 2009
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