Laptop back light or inverter?

June 18, 2009 at 12:10:02
Specs: Windows XP, intel centrino/ 512mb ram
Close to a year ago my girlfriend dropped her laptop on the ground and the screen hit on one of its upper corners (not sure which) when you turn it on you get a white light which im assuming that is the back light, but you get no video feedback. i know the video hardware works because i can hook it up to a monitor and it is fine but its very annoying that i cant take it anywhere else to use it. could the issue with no video be a bad inverter? or could it be that a cable is slightly out to where it gets no signal? please help

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June 18, 2009 at 13:26:30
No way to tell what is wrong. I doubt the inverter.

You can't say the adapter is working. You can only say external is. :They are not the same.

"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10

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June 18, 2009 at 15:20:05
It's definitely not the inverter. The inverter supplies power to the back-light which is a cold cathode fluorescent lamp which requires AC power.

It may just be a cable dislodged or the LCD could be completely screwed. You will never know till it is taken a part.


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