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
Is this a good question?
1 Comment
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..
by Kyle