Chosen Solution
My problem is: The computer is on but the screen is dark. So 1.I tried the brightness (F1&F2 key) but the light goes dark again. 2.I also have tried the resetting. 3. Changed the inverter board 4. Connected to the TV, it works fine. 5.While the screen is on (sometimes, the computer stays on in brightness 2~3), I disconnected the black cable on the left side of the inverter board, the computer lights on for a sec. 6.finally I’ve changed the display data cable today but it’s still not working. I’m thinking about returning the board and the cable and order a new lcd. But I’m not sure it’s the lcd problem..:( Please give me some advice!!
You’ve done the right things. If an external monitor works OK, then it’s one of three things, inverter board, display data cable or LCD. My question would be the source for the replacement parts, how reliable is it. If the source is iFixit then the only thing left is the LCD, sorry.
