iMac EMC2428 black screen
Hi,
I have an iMac 2011, 21,5" EMC 2428.
Right after the boot chime, the backlight goes on for a short period and then stays off forever. It seems that the LED backlight isn't working anymore, because if you use a flashlight you can see everything on the internal screen.
There is an interesting situation where a backlight appears in a short time when it is woken up.
I have opened system to check the onboard diagnostic LED’s 1 ~ 4, all are turned on.
Has anyone encountered the same situation?
Thanks.
Richard
crwdns2934109:0crwdne2934109:0