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5 AIR DATA Source Selector
L - left ADC provides information to the PFD and ND.
R - right ADC provides information to the PFD and ND.
April 01, 2001
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.33
Heading Reference and CRT Displays
CRT Display Controls
1 Inboard (INBD) CRT Selector
EICAS - displays secondary or primary EICAS display on inboardCRT.
NORM - displays ND on inboard CRT. Displays PFD if outboard CRT fails.
PFD – displays PFD on inboard CRT.
2 Lower (LWR) CRT Selector
EICAS PRI - displays primary EICAS on lower CRT.
NORM - displays on lower CRT as selected on EICAS display select panel.
Displays primary EICAS if upper CRT fails.
ND - displays ND on lower CRT.
Heading Reference Switch
1 Heading (HDG) Reference Switch
Selects heading reference for PFDs, NDs, AFDS, FMCs and RMI.
FORWARD PANELS
EICAS
NORM
PFD ND
LWR CRT
EICAS
PRI
NORM
INBD CRT
1 2
CENTER PANEL
TRUE
HDG
NORM
1
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.10.34 D6-30151-425
Flight Instruments, Displays -
Controls and Indicators
TRUE – references true north.
NORM -
• references magnetic north
• references true north when north of 82°N latitude (or north of 70°N
between 80°W and 130°W) or south of 82°S latitude (or south of 60°S
between 120°E and 160°E) for PFDs, NDs, and FMCs. Provides no
reference for RMI and AFDS roll modes other than LNAV in these areas;
HDG SEL, HDG HOLD, and localizer modes are inoperative.
When AFDS roll mode is HDG SEL, switching the Heading Reference switch
from NORM to TRUE or TRUE to NORM activates HDG HOLD mode.
Display Select Panel
1 Synoptic/Display Switches
Pushing a switch displays the related synoptic/display on the lower CRT. Pushing
the same switch a second time blanks the display. Pushing STAT pages through
more than one page of status messages. Synoptics present a simplified view of
system status as an aid for crew situational awareness.
If the display select panel fails, displays are controlled through the CDU
(CDU-152).
Displays can also be controlled through the CDU (CDU-161).
ENG - secondary engine display (Ch 7).
STAT - status display, (Ch. 15).
ELEC – electrical system synoptic (Ch. 6).
FUEL – fuel quantity indications and fuel system synoptic (Ch. 12).
ECS – air systems synoptic (Ch. 2).
GLARESHIELD PANEL
ELEC FUEL
CANC RCL
HYD DRS GEAR
ECS
ENG STAT
1
2 3
April 01, 2001
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.10.35
HYD – hydraulic system synoptic (Ch. 13).
DRS – doors synoptic (Ch. 1).
GEAR – landing gear and brake systems syoptic (Ch. 14).
2 Cancel (CANC) Switch
Refer to Warning Systems, Chapter 15.
3 Recall (RCL) Switch
Refer to Warning Systems, Chapter 15.
Display Brightness Controls
The left panel is shown.
Outboard/Inboard CRT Brightness Controls
1 Outboard (OUTBD) CRT Brightness Control
Rotate – adjusts brightness of outboard CRT.
2 Inboard (INBD) CRT Brightness Control (outer)
Rotate – adjusts brightness of inboard CRT.
3 Inboard (INBD) CRT Brightness Control (inner)
Rotate – adjusts weather radar display brightness on inboard CRT.
GLARESHIELD
OUTBD - CRT - INBD
1 2
3
October 1, 2000
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.10.36 D6-30151-425
Flight Instruments, Displays -
Controls and Indicators
Upper/Lower CRT Brightness Controls
1 Upper (UPR) CRT Brightness Control
Rotate – adjusts brightness of upper CRT.
2 Lower (LWR) CRT Brightness Control (outer)
Rotate – adjusts brightness of lower CRT.
3 Lower (LWR) CRT Brightness Control (inner)
Rotate – adjusts weather radar brightness on lower CRT .
Standby Flight Instruments
Standby Magnetic Compass
1 Standby Magnetic Compass
Displays magnetic heading.
CENTER PANEL
BRT
UPR LWR
1
3
2
1
CENTER POST ABOVE GLARESHIELD
15 12 E 6
December 01, 1999
747 Operations Manual
Flight Instruments, Displays -
Controls and Indicators
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