737-300/400/500
MAINTENANCE MANUAL

ATTITUDE
ATTITUDE
COMPARISON

RADIO
ALTITUDE

PITCH
LIMIT

PITCH
SCALE

FLIGHT
DIRECTOR
BARS

GLIDE SLOPE DEVIATION SCALE AND POINTER
AUTOPILOT STATUS
ARMED ROLL MODE
ENGAGED ROLL MODE
CWS ROLL
WINDSHEAR LOCALIZER
ALERT DEVIATION SCALE AND RISING RUNWAY STEM

OPTION CAN BE DISABLED BY PROGRAM PIN CHANGE
EFIS - EADI Display Figure 3
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A 737-300/400/500MAINTENANCE MANUAL

EADI WITH FMA AT THE BOTTOM
AIRPLANES WITH THE ATTITUDE COMPARISON ALERT

1
EFIS - EADI Fault Display Figure 3A
F14058
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A 737-300/400/500MAINTENANCE MANUAL
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DME DISTANCE
HEADING UPTRACK LINE

WXR GAIN, MODEAND ANTENNA TILTADF POINTERSELECTEDCOURSE SELECTEDCOURSE VOR DEVIATION
SELECTEDHEADING AIRPLANE SYMBOL
TO/FROMANNUNCIATION
VOR FREQUENCY
EXPANDED COMPASSROSE
ADF POINTER
SELECTEDRUNWAY ROSE
HEADING
LOCDEVIATION DIRECTION
GLIDE SLOPEDEVIATION ILS ILS
FREQUENCY
ILS MODE (FULL) ILS MODE (EXPANDED)

1 THE RANGE ARCS ARE REMOVEDWHEN THE WXR IS OFF EFIS - EHSI Display ModesFigure 4 (Sheet 1)

HEADING DISTANCE-TO-GO
HEADING
WEATHER
RADAR

WAYPOINT ANDDISPLAY IDENTIFIERNAVAID ANDROUTEIDENTIFIER NORTH UP WIND SPEEDAND DIRECTION AIRPLANE
A 737-300/400/500MAINTENANCE MANUAL
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DIFFERENCE
MAP MODE SYMBOL CENTER MAP MODE (EXPANDED) PLAN MODE
EFIS - EHSI Display Modes
Figure 4 (Sheet 2)

A 737-300/400/500MAINTENANCE MANUAL
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VOR/ILS MODE (FULL) VOR/ILS MODE (EXPANDED)
LINE 1LINE 2LINE 3

CENTER MAP MODE (EXPANDED) PLAN MODE NAV MODE (FULL) NAV MODE (EXPANDED)
POSSIBLE WXR ANNUNCIATIONS IN SECONDLINE ARE FAIL, WEAK, ATT, OR STAB.
POSSIBLE RANGE ANNUNCIATIONS IN THIRDLINE ARE MAP RANGE DISAGREE, WXR RANGEDISAGREE, OR WXR/MAP RANGE DISAGREE.
EFIS - EHSI Fault Displays
Figure 4A

A 737-300/400/500MAINTENANCE MANUAL
 C.  The EHSI weighs 25 pounds (11.3 Kg). The EHSI dimensions are 6 X 7 X 14 in., and display area on the EHSI CRT is 4.7 X 5.7 in.
 D.  One inlet hole and one exhaust hole, each covered with a wire mesh screen, are located at the rear of the EHSI. These holes provide passage for cooling air from the equipment cooling system.
 8.  EHSI Display Modes
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