Question about Sony VAIO PCG-K23 Notebook
I checked the connection behind the LCD and at the system board to no avail.
I'm thinking it might be the cable or the system board.
Connect an external monitor to the video connector on the laptop and bootup the laptop. If you don't get an image on the external monitor then press the blue Fn key plus the one of the function keys with the screen/monitor symbol, (this toggles the display between the LCD and external video connector).
If you cannot get an image then the you have a faulty video card. The video card is part of the motherboard and cannot be fixed, you have to get a replacement motherboard.
When you boot up without the external monitor and you look at the LCD from an acute angle and you can see a slight and dark image, this indicates you have a backlight problem.
The image on the external monitor indicates that you have a faulty inverter that provides power for the backlight panel or a faulty backlight panel, the inverter and the LCD panel can be replaced fairly easily but it is not cheap, but it would be cheaper that buying a new laptop.
If the external monitor works and you can use it this way, this would be the cheapest option, but it would not be portable.
Posted on Feb 12, 2009
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Posted on Jan 02, 2017
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