My i mac 21.5" mid 2010 A1311 has a black screen when i turn on computer it still beeps and i also hear the fan running. I removed the LCD screen to look at the four led lights on logic the board. The first led light came on when i connected computer to power source . the second and third led light came on when i turned on computer. The fourth led light never came on. Then when i powered off the computer the second and third led light was off , the first led light turned off,even with the computer still connected to a power source.
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Black screen on mid 2010 21.5" i mac
- Thread starter jo498
- Start date
- Sort by reaction score