Apple iMac All In One READ DESCRIPTION!

Apple iMac with a sleek silver finish. Includes a white keyboard, original box boots up loads, then screen turns black, I know technology pretty well but unfortunately don't know the issue here see photos for example, Cosmetically it is amazing no scratches on the screen, shine sticker residue see photoscould be a simple fix I don't know comes with apple remote keyboard and power chord also comes with original box no returns accepted on this imac. will ship with care within 2 business days open to reasonable offers thanks for looking.