Why isn't my backlight on?
MacBook Pro 15 22 Unibody 2.53 GHz Mid 2009
I have a mid 2009 15" Macbook Pro 2.4 Ghz Intel Core 2 Duo. the computer boots up. There is a chime and the screen boots up. But no backlight. So the only way I can see my screen is by holding a flashlight to it. I know the computer works. I plugged it up to an external display and it worked fine. I know it's not software because I booted from an external HDD which I know works.
I read on another forum that these models use LEDs and don't have an inverter.
So my question is: What makes the backlight work? What do I have to replace to make this screen visible?
Any general info about the screens or inverters or whatever is helpful. Thanks
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I found this other post with similar symptoms. I am good with a soldering iron and have a microscope available. If it is possibly a blown fuse that is causing the problem, I'd like verification before I buy a whole new display that I don't need.
Again. I am good with a soldering iron, but I'm not a computer science major. Please spell things out as simply as possible. I can borrow a multimeter and test components if I need to. I just need to know what they are supposed to read. Thank you very much
This is the url of the other relative question.
Detailed Logic Board Question. No Backlight..
- de Kyle