Question about Sony VAIO K45 Notebook

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VIAO PCG-K45 While cleaning my battery contacts I sprayed some contact cleaner on the plug in inside of the computer case. When I restarted by computer the back light would not come on after the initial boot. The back light does work because it lights the first part of safe mode but does not come on for the desk top. I connected an external monitor and the computer functions well otherwise. In the back of the battery compartment where the plug receptacle is located there is an opening into the area of the computer where the touch pad is located. A small amount of spray could have entered this area. The contact spray is rated for application to computer electronics. What could have happened and what should I do? Harry

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What may have happened is the spray entered the laptop as you suspect and shorted some components. More likely is the LCD toggled to the external monitor. There is a three state toggle for most laptops the toggle is done by holding the Fn key and taping another key such as F5. It may be different with your laptop. The beginning state is LCD only, External monitor only and then both. I try to keep laptop in the both state to reduce confusion and it doesn't require any more power.
Another possibility is shorting of the LCD cable. This would could cause no display video, but would more likely show no video at all.
You should always allow the laptop to completely dry, usually over night, before powering it back on after cleaning of this sort.

Posted on Apr 07, 2011


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