speedracer1407
Posts: 330
Joined: Fri Dec 24, 2004 4:19 pm

777 LCD Display Frames

Mon Jun 18, 2007 12:18 pm

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?


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Photo © Werner Horvath

Dassault Mercure: the plane that has Boeing and Airbus shaking in their boots.
 
777wt
Posts: 828
Joined: Wed Jan 19, 2005 7:45 am

RE: 777 LCD Display Frames

Mon Jun 18, 2007 1:24 pm

If you look closer, the bar on the bottom is raised, as it's seperate from the whole frame.

Unscrew the screw/knob on the right of the hinge and you can flip it open to get access.
 
speedracer1407
Posts: 330
Joined: Fri Dec 24, 2004 4:19 pm

RE: 777 LCD Display Frames

Mon Jun 18, 2007 2:25 pm

Ah hah. So simple. Should have looked closer. Thanks.
Dassault Mercure: the plane that has Boeing and Airbus shaking in their boots.
 
TEBGuy
Posts: 237
Joined: Thu Feb 03, 2005 6:26 am

RE: 777 LCD Display Frames

Thu Jun 21, 2007 7:18 am

Quoting 777WT (Reply 1):
Unscrew the screw/knob on the right of the hinge and you can flip it open to get access.

Access to what?

[Edited 2007-06-21 00:18:57]
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atlamt
Posts: 245
Joined: Thu Sep 13, 2001 12:15 am

RE: 777 LCD Display Frames

Thu Jun 21, 2007 7:35 am

Quoting TEBguy (Reply 3):
Access to what?

Access to remove the screen.
Fwd to MCO and Placard
 
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HAWK21M
Posts: 30002
Joined: Fri Jan 05, 2001 10:05 pm

RE: 777 LCD Display Frames

Thu Jun 21, 2007 4:44 pm

Quoting ATLAMT (Reply 4):
Access to remove the screen

Is the Screen removable.Or is the entire LCD Display unit removable.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
Tristarsteve
Posts: 3400
Joined: Tue Nov 22, 2005 11:04 pm

RE: 777 LCD Display Frames

Thu Jun 21, 2007 6:37 pm

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.
 
GearDownPlease
Posts: 39
Joined: Mon May 28, 2007 4:46 am

RE: 777 LCD Display Frames

Thu Jun 21, 2007 7:13 pm

Quoting TristarSteve (Reply 6):

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.

Best regards, GearDownPlease
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Tristarsteve
Posts: 3400
Joined: Tue Nov 22, 2005 11:04 pm

RE: 777 LCD Display Frames

Fri Jun 22, 2007 12:35 am

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.
 
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HAWK21M
Posts: 30002
Joined: Fri Jan 05, 2001 10:05 pm

RE: 777 LCD Display Frames

Fri Jun 22, 2007 6:07 pm

Quoting TristarSteve (Reply 6):
Our B777 have cathode ray tubes., not LCDs



Quoting GearDownPlease (Reply 7):
aren't all 777 flight decks equipped with Honeywell LCD screens



Quoting Tristarsteve (Reply 8):
are so big and heavy I assumed they are CRTs

Can the Screen in off position give a sign if a display unit is a CRT or LCD.Any way of telling.
regds
MEL
I may not win often, but I damn well never lose!!! ;)

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