Speedracer1407 From United States of America, joined Dec 2004, 333 posts, RR: 0 Posted (7 years 1 month 2 weeks 16 hours ago) and read 3882 times:
I've been meaning to ask this for a while--on the below 777 cockpit photo, the LCD display screan frames appear to have a hinge of some sort, but only at the bottom. The fact that this "hinge" doesn't have a corresponding one on the top leads me to believe that it's not a hinge. So what is it?
TristarSteve From Sweden, joined Nov 2005, 3982 posts, RR: 34
Reply 6, posted (7 years 1 month 1 week 4 days 9 hours ago) and read 3514 times:
Quoting HAWK21M (Reply 5): Is the Screen removable.Or is the entire LCD Display unit removable
Our B777 have cathode ray tubes., not LCDs. But the whole unit comes out. All 6 screens are the same so can be interchanged if one fails, to comply with the MEL. They slot into a frame with fitted connectors.
Feel free to correct me but... aren't all 777 flight decks equipped with Honeywell LCD screens ? I think it was even a Boeing argument in the 777 design phase, that LCDs are lighter than CRTs, due to the fact that the first generates less heat than the second, meaning that it needs a lighter cooling system.
Tristarsteve From Sweden, joined Nov 2005, 3982 posts, RR: 34
Reply 8, posted (7 years 1 month 1 week 4 days 3 hours ago) and read 3467 times:
Quoting GearDownPlease (Reply 7): Feel free to correct me but... aren't all 777 flight decks equipped with Honeywell LCD screens ?
Yes you are right. I stand corrected. I had to look in the AMM to check. The reason is when I interchange them they are so big and heavy I assumed they are CRTs. They are 8.75in deep 8x8 in screens and weigh 18lbs.