crwdns2934241:0crwdne2934241:0 Dan

crwdns2934249:0crwdne2934249:0:

With no image that tells us the display its self has failed. On the backside under the covers is another board called a T-CON. In your case this is the part that has failed. Sadly there part is not readily available, you’ll need to replace the full display.

20” Display Assembly - Apple P/N 661-4983

crwdns2915684:0crwdne2915684:0:

open