Boeing 737 - 600/700/800/900. Operations Manual (1997 year)

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

Display Brightness Switches

Push -

•

+ increases display brightness

•

- decreases display brightness

Airplane Symbol

Indicates airplane attitude with reference to the horizon.

Airspeed Indications

Indicates current airspeed when above 30 knots.

Attitude Reset (ATT RST) Switch

Push and hold at least two seconds

• aligns horizon with the airplane symbol

• reset takes approximately ten seconds

Hectopascal/Inch (HP/IN) Switch

Push - changes the units of the barometric reference.

Barometric Setting

Indicates the barometric setting selected with the barometric selector.

STD is displayed when selected with the barometric selector.

Ambient Light Sensor

Automatically adjusts display intensity for ambient lighting condition.

Glideslope Pointer and Deviation Scale

The glideslope pointer indicates glideslope position relative to the airplane.

• the pointer is in view when the glideslope signal is received

• the scale is in view when the APP mode is selected

• the pointer and scale are removed when the BCRS mode is selected

Current Altitude

Localizer Pointer and Deviation Scale

The localizer pointer indicates localizer position relative to the airplane.

• the pointer is in view when the localizer signal is received

• the scale is in view when either the APP or BCRS mode is selected

10.16.12

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

Barometric (BARO) Selector

Rotate - changes barometric setting

Push -

• selects standard barometric setting (29.92 inches Hg/1013 HPA)

• if STD is displayed, selects the preselected barometric setting

Heading Indication

Displays airplane heading.

ISFD Messages

WAIT ATT

INIT 90s

ISFD

Attitude Messages

Indicates attitude display status.

• ATT:RST (amber) - attitude must be reset using the attitude reset switch

• ATT 10s (amber) - 10 second attitude realignment in progress

• WAIT ATT (amber) - indicates temporary self correcting loss of attitude

Initialization Message

INIT 90s (amber) - 90 second initialization in progress.

10.16.13

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

ISFD Failure Flags

ATT

LOC

HDG

ISFD

Airspeed flag

Airspeed information has failed.

ILS localizer failure flag

ILS localizer has failed.

ILS glideslope failure flag

ILS glideslope has failed.

Altitude flag

Altitude information has failed.

Attitude flag

Attitude information has failed.

Heading flag

Heading data has failed.

10.16.14

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

Standby Radio Magnetic Indicator

[Option - Dual ADF]

ADF

CENTER INSTRUMENT PANEL

Heading Warning Flag

The compass signal from the air data inertial reference system is lost.

Bearing Pointers

• narrow pointer uses signals from the VHF NAV receiver No. 1 or ADF

receiver No. 1

[Option - Dual ADF]

• wide pointer uses signals from the VHF NAV receiver No. 2 or ADF

receiver No. 2.

Bearing Pointer No. 1 Warning Flag

VOR mode:

• RMI power failure

• VHF NAV signal unreliable.

ADF mode:

• RMI power failure

• ADF failure or signal unreliable.

VOR/ADF Bearing Pointer No. 1 Switch

ROTATE - selects VOR or ADF for the bearing pointer.

10.16.15

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

Bearing Pointer No. 2 Warning Flag

VOR mode:

• RMI power failure

• VHF NAV signal unreliable.

[Option - Dual ADF]

ADF mode:

• RMI power failure

• ADF failure or signal unreliable.

VOR/ADF Bearing Pointer No. 2 Switch

[Option - Dual ADF]

ROTATE - selects VOR or ADF for the bearing pointer.

Clock

[Option - GPS capable]

CHR

TIME/DATE

MAN

UTC

SET

TIME

DAY MOYR

ET CHR

RUN

HLD

RESET

LEFT and RIGHT FORWARD

PANELS

Chronograph (CHR) Control

PUSH -

• controls the start, stop and reset functions of the CHR display and second

hand with successive pushing

• overrides any existing ET display.

10.16.16

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

Time/Date Indicator

• displays UTC or manual time (hours, minutes) when time is selected with

the time/date pushbutton

• alternately displays day-month and year when date is selected with the

time/date pushbutton.

Chronograph Second Hand

• indicates chronograph seconds

• controlled by the CHR control.

Elapsed Time (ET) and RESET Pushbutton

Controls the elapsed time function:

• select the ET pushbutton once to run the elapsed time

• select the ET pushbutton again to hold the elapsed time

• select the RESET pushbutton to set the elapsed time to 0.

The RUN or HLD symbol is displayed on the lower left part of the LCD display.

TIME/DATE Pushbutton

Controls the time/date function:

• select the TIME/DATE pushbutton once to see UTC time

• select the TIME/DATE pushbutton again to see UTC date

• select the TIME/DATE pushbutton again to see manual time

• select the TIME/DATE pushbutton again to see manual date.

The UTC or MAN symbol is displayed on the upper right part of the LCD display.

In MAN mode, clock time and date come from the clock. In UTC mode, clock

time and date come from the global positioning system.

SET Pushbutton

Controls the setting of manual time and date:

With manual time displayed:

• select the SET pushbutton once and the hours flash, use the plus or minus

pushbutton to adjust the hours

• select the SET pushbutton again and the minutes flash, use the plus or

minus pushbutton to adjust the minutes

• select the SET pushbutton again to run the time.

10.16.17

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

With manual date displayed:

• select the SET pushbutton once and the day flashes, use the plus or minus

pushbutton to adjust the day

• select the SET pushbutton again and the month flashes, use the plus or

minus pushbutton to adjust the month

• select the SET pushbutton again and the year flashes, use the plus or

minus pushbutton to adjust the year

• select the SET pushbutton again to run the date.

Note: A delay greater than one minute while setting the time or date results in the

clock reverting to the previous time/date setting.

Elapsed Time (ET)/Chronograph Indicator

• displays elapsed time (hours, minutes) or chronograph minutes

• the chronograph display replaces the elapsed time display

• elapsed time continues to run in the background and displays after the

chronograph is reset.

Plus (+) and Minus (-) Pushbuttons

Used to set the manual time and date:

• select the + pushbutton to increase the value

• select the - pushbutton to decrease the value.

Clock Switch

[Option]

CLOCK

GLARESHIELD PANEL

Clock Switch

Operates the same as the chronograph (CHR) control.

10.16.18

Flight Instruments, Displays -

EFIS Instruments (PFD) -

Controls

Boeing 737 Operations Manual

[Option - With QAR lights]

FLIGHT RECORDER

TEST NORMAL

OFF

OQAR

OQAR FAIL

DISC FULL

AFT OVERHEAD PANEL

Flight Recorder Test Switch

NORMAL (guarded position) -

• in flight - the recorder operates anytime electrical power is available

• on the ground - either engine must also be operating.

TEST - powers the flight recorder on the ground.

OFF Light (amber)

ILLUMINATED -

• indicates the recorder is not operating or the test is invalid

• may indicate power failure, loss of input data, or electronic malfunction.

Optical Quick Access Recorder (OQAR) Disc Full (blue)

[Option - QAR lights]

ILLUMINATED -

• indicates the quick access recorder is full

Optical Quick Access Recorder (OQAR) FAIL (blue)

[Option - QAR lights]

ILLUMINATED -

• indicates the quick access recorder has failed

10.16.20

Boeing 737 Operations Manual

Flight Instruments, Displays

Chapter 10

Head-Up Display System - Controls

Section 17

Head-Up Display Control Panel Controls - Flight Instrument

Displays

The HUD control panel controls modes of operation, display values, and system

test and status information.

MODE

STBY

RWY

G/S

ENTER

TEST

FAULT

CLR BRT + DIM -

AFT ELECTRONIC PANEL

Mode/Function Keys

Push - selects mode or allows data entry:

• MODE - selects desired mode from available modes on the standby

display line.

• STBY - selects standby mode.

• RWY - used to enter runway length and elevation or to toggle between

entered values. Select once to enter runway length, select again to enter

runway elevation. Use the DIM - (minus) key to enter negative values.

• G/S - used to enter the glideslope angle for the landing runway.

Note: Values entered using the mode/function keys are stored in the HUD

computer. If a power interruption should occur, the last mode and value

will be displayed once power is restored.

Control Panel Display

Displays information entered using the mode/function keys. Refer to Section 12,

Head-Up Display System - Displays.

FAULT Light

Illuminated (amber) - HUD BITE fault.

10.17.1

Flight Instruments, Displays -

Head-Up Display System -

Controls

Boeing 737 Operations Manual

Clear and Brightness Keys

CLR - used to clear all symbology from the combiner display. Symbology can be

re-displayed by selecting CLR again, changing modes, or entering TEST. CLR

can also be used as a backspace key during data entry and TEST operations.

BRT + (plus) - used to manually increase control panel display intensity.

DIM - (minus) - used to manually decrease control panel display intensity.

Note: Display brightness is adjusted automatically based on ambient light

measured by a sensor located in the upper left corner of the control panel.

Numeric Keys

Push -

•

0 through 9 - puts selected number in display

• ENTER - used to enter selected values

• TEST - used by maintenance for system tests and troubleshooting.

HUD Annunciator Panel

[Option - Model 2350]

[Option - 3-light annunciator panel]

AIII

APCH

WARN

FLARE

RIGHT FORWARD PANEL

AIII Light

Illuminated (green) - AIII mode is active and all required systems and equipment

are valid.

APCH WARN Light

Illuminated (red) - system or approach conditions out of tolerance.

10.17.2

Flight Instruments, Displays -

Head-Up Display System -

Controls

Boeing 737 Operations Manual

FLARE Light

Illuminated (green) - HUD system derived flare guidance is active.

Combiner Controls

[Option - Model 2350]

Brightness and Stow Controls

HUD

BRT

MAN AUTO

DEPRESS

LEVER

STOW

OVERHEAD FLIGHT DECK

Brightness Control Knob

MAN - push knob in for manual brightness adjustment.

AUTO - pull knob out for automatic brightness adjustment. Display intensity

varies based on ambient light detected by a sensor on the combiner.

HUD BRT - rotate knob clockwise to increase display intensity. Rotate knob

counter-clockwise to decrease display intensity.

Stow Lever

Push lever against the stow shaft housing and rotate vertically in the desired

direction.

10.17.3

Flight Instruments, Displays -

Head-Up Display System -

Controls

Boeing 737 Operations Manual

Combiner Breakaway

OVERHEAD FLIGHT DECK

Breakaway Reset Lever

Used to release the combiner from the break away position.

CAUTION: The breakaway feature allows the combiner to be displaced

forward of its normal operating position. Do not allow the

combiner to spring back from the full or near full breakaway

position on its own, as this could cause damage to the combiner.

Combiner Alignment

OVERHEAD FLIGHT DECK

10.17.4

Flight Instruments, Displays -

Head-Up Display System -

Controls

Boeing 737 Operations Manual

Combiner Alignment Detector

Ensures correct combiner alignment with the overhead unit.

Consists of an infra-red emitter, mirror and detector.

Note: In the IMC or VMC modes, an out of tolerance condition results in an

ALIGN HUD message on the combiner display. Gently push the combiner

in the breakaway direction (forward) and release it to remove the message.

If the message cannot be removed, the IMC or VMC mode should not be

used.

10.17.5

Boeing 737 Operations Manual

Flight Instruments, Displays

Chapter 10

EFIS/Map System Description

Section 20

Introduction

The common display system (CDS) supplies information to the flight crew on six

flat panel liquid crystal display units (DUs). The outboard and inboard display

units present all primary flight and navigation information. Engine and system

data are normally shown on the upper display unit. The lower display unit serves

as a spare.

Detailed information on the following subjects is found in other sections of this

chapter:

• Electronic Flight Instrument System (EFIS) - Section 30

• Navigation display - Section 40.

Display Brightness Control

Adjustment of the brightness of each DU is controlled by a combination of light

sensors and brightness controls. Two remote light sensors, located left and right

on the top of the glareshield, compensate for the amount of ambient light entering

through the flight deck windows and adjust the brightness of the related DUs.

Each DU also has an integral light sensor which provides automatic control of

brightness as a function of ambient light striking the face of the DU. Brightness

controls are used by the pilot to further adjust the intensity of each display unit.

10.20.1

Flight Instruments, Displays -

EFIS/Map System Description

Boeing 737 Operations Manual

DISPLAYS SOURCE Panel

DISPLAYS

SOURCE

CONTROL PANEL

AUTO

ALL

BOTH

ON 1

ON 2

ON 1

ON 2

NORMAL

CAPT

F/O

ENGINE

OUTBD

INBD

OUTBD

DEU 1

DEU 2

AIRPLANE SENSORS AND SYSTEMS

The DISPLAYS source panel, located on the forward overhead panel, contains

source controls for the display electronic units (DEUs) and EFIS control panels.

Two DEUs receive data from sensors and airplane systems and supply data to the

DUs. During normal operation, with the display SOURCE selector in the AUTO

position, DEU1 supplies data to the Captain outboard, Captain inboard and upper

DUs while DEU2 supplies data to the First Officer outboard, First Officer inboard

and lower DUs. If a DEU fails, the remaining DEU automatically supplies data to

all six displays. This prevents the loss of navigation information.

The display SOURCE selector, used on the ground for maintenance purposes,

allows manual selection of either DEU1 or DEU2 for all six display units. If the

displays are automatically or manually switched to a single DEU source, a

“DSPLY SOURCE” annunciation illuminates above both pilot’s altimeters.

The CONTROL PANEL select switch determines which EFIS control panel

controls the pilots’ display functions. With the switch positioned to either BOTH

ON 1 or BOTH ON 2, the selected EFIS control panel provides inputs for both sets

of pilot displays. When in the NORMAL position, a “DISPLAYS CONTROL

PANEL” annunciation illuminates on the pilot’s altimeters and indicates a failure

of the associated EFIS control panel.

10.20.2

Flight Instruments, Displays -

EFIS/Map System Description

Boeing 737 Operations Manual

EFIS Control Panels

The EFIS control panels, located on the glareshield, control display options,

mode, and range for the related pilot’s displays. Refer to the EFIS and navigation

display sections of this chapter for detailed information.

If an EFIS control panel fails, the displays can be controlled by the remaining

control panel.

Display Select Panel

The display select panel, located on the left and right forward panels, controls the

displays on the inboard, outboard and lower DUs. Normal operation is all selectors

in the NORMAL position. The pilots’ outboard and inboard DUs display primary

flight and navigation data and the upper DU displays engine data.

If a DU fails, automatic display switching ensures critical information remains

available to the pilots at all times. If the system detects an operational failure on

an outboard DU, the compact EFIS format automatically moves to the inboard DU

and the failed outboard DU blanks. If the system detects a failure on an inboard

DU, the compact EFIS format automatically moves to the outboard DU and the

failed inboard DU blanks. If the upper DU fails, the engine display automatically

moves to the lower DU.

Manual control of display formats is provided for undetected failures. The

outboard rotary switch on the display select panel controls the formats displayed

on either the outboard or inboard DUs. The inboard rotary switch controls the

display format shown on the lower DU.

10.20.3

Flight Instruments, Displays -

EFIS/Map System Description

Boeing 737 Operations Manual

Display Selection and Control Examples

The following examples show display selections.

Normal Display Configuration

DISPLAYS

SOURCE CONTROL PANEL

AUTO

ALL

BOTH

ON 1

ON 2

ON 1

ON 2

NORMAL

MINS

RADIO BAROF

MTRS

BAROIN HPA

MINS

MTRS

BARO

RADIO BAROF

IN HPA

RST

STD

RST

STD

VOR1

APPVOR MAP

PLN

2040

VOR

VOR MAP

PLN

160

VOR1

APP

2040

160

VOR2

OFF

CTR

TFC

320

OFF

ADF1

640

ADF2

ADF1

CTR

TFC

320640

OFFADF2

WXR STA WPT ARPT DATA POS TERR

CAPT

F/O

ENGINE

OUTBD

INBD

OUTBD

MAIN PANEL DUs

LOWER DU

MAIN PANEL DUs

NORM

OUTBD

ENG

INOP

ENG

OUTBD

PFD

PRI

PFD

INBD

INOP

DISPLAYS Source Panel

The display SOURCE select switch is in AUTO and the CONTROL PANEL

select switch is in NORMAL.

EFIS Control Panel

The left EFIS control panel controls the Captain outboard and inboard display

units. The right EFIS control panel controls the First Officer outboard and inboard

display units.

Display Select Panel

All selectors are in NORMAL.

10.20.4

Flight Instruments, Displays -

EFIS/Map System Description

Boeing 737 Operations Manual

Display Units

The pilots’ outboard and inboard DUs show the normal EFIS/MAP displays.

Display Unit Failure Automatic Switching

COMPACT

F/O

FORMAT

ENGINE

INBD

OUTBD

APT

CAPT

COMPACT

OUTBD

INBD

ENGINE

FORMAT

CAPT

F/O

OUTBD

INBD

OUTBD

ENGINE

MAIN PANEL DUs

LOWER DU

MAIN PANEL DUs

NORM

OUTBD

ENG

INOP

ENG

OUTBD

PFD

PRI

PFD

INBD

INOP

Outboard Display Unit Fails

If an outboard display unit fails, the compact EFIS format is automatically

displayed on the inboard display unit and the outboard display unit blanks.

Inboard Display Unit Fails

If an inboard display unit fails, the compact EFIS format is automatically

displayed on the outboard display unit and the inboard display unit blanks.

10.20.5

Boeing 737 - 600/700/800/900. Operations Manual (1997 year) - page 49