Imac Black Screen Led 1 2 Lit Fan Spinning Imac Intel 21 5 Emc 2544
Chosen Solution With the system back together see if either of these diagnostic tricks helps in identifying your problem: Plug in an external display in does it show your desktop?Shine a flashlight into the screen at a sharp angle can you see a faint image of your desktop icons? If either of these work your backlight is having problems not the LCD or GPU. If the external display works but you can’t see anything with the flashlight trick you have a cabling issue between the LCD and the GPU or the power cable is bad....