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• Flap Electronic Control Unit (FECU)
FLIGHT INSTRUMENTS
11-16 For Training Purposes Only
May 03
P I LOT T R A I N I N G GU I D E
Controls and Indicators
Display Control Panel
The DCP provides the pilot and copilot with the controls needed to select the desired
navigational features of the EFIS system. For the PFDs, this includes lateral and
vertical navigation source information and bearing pointers. For the MFDs, this
includes the format, range and display overlays. Each MFD/PFD pair has a dedicated
DCP. If one of the DCPs should fail, the other DCP may be used to control both EFIS
displays.
Format/Range Knob
Turning the (outer) FORMAT knob selects a desired on-side MFD display format for
the associated MFD. There are five selectable display formats: HSI, NAV Sector, FMS
Map, Plan Map and TCAS. The (inner) RANGE knob varies the display range scale
on the MFD.
Navigation Source Knob
The NAV SOURCE knob selects the active navigation source. This action controls the
selection of displayed information on each pilot’s PFD/MFD. Possible selections are
FMS 1, VOR 1, (or LOC 1), VOR 2 (or LOC 2) FMS 2 and FMS 3. Pushing the center
of the knob alternately adds or removes cross-side NAV data on the MFD HSI and
NAV sector displays only.
Bearing Pointers
The single-bar BRG pointer selects the No. 1 Bearing pointer for each pilot’s PFD/
MFD. Possible selections are VOR 1, ADF 1, FMS 1, and FMS 3 (if installed). The
double-bar BRG pointer selects the No. 2 Bearing pointer for each pilot’s PFD/MFD.
Possible selections are VOR 2, ADF 2, FMS 2, and FMS 3 (if installed).
Information Overlay Buttons
The WX button selects weather radar and lightning detection system depictions on the
MFD. This button sequentially selects weather radar information, or adds radar/
lightning overlays. The Weather Radar is available on all dynamic map MFD formats,
but is not available for HSI and Plan Map. The TFC button alternately selects or
deselects the TCAS Traffic Map Overlay display on the associated MFD. The TERR
button selects the terrain information and replaces the Weather Radar information. For
more details about terrain overlay information, see the EGPWS section in Chapter 17
Navigation Systems.
FLIGHT INSTRUMENTS
For Training Purposes Only
May 03
11-17
P I LOT T R A I N I N G GU I D E
Display Control Panel
Figure 11-9
NAV
SOURCE
FORMAT RANGE
BRG TERR WX TFC
P
USH
X-SIDE
P604_11_003
Weather Radar Display
Select Switch
Used to select or
deselect Weather Radar
Display
MFD Format
Selector Switch
Used to select basic
format/mode
displayed on MFD
Range Selector
Switch
Used to select range
displayed on MFD
TFC Switch
Used to directly select
TCAS traffic display on
MFD
Cross-Side Course
Selection Push-
Button Switch
Used only on MFD;
in HSI and NAV
Sector formats
Terrain Information
Display Select Switch
Used to select or
deselect Terrain
Information Display
No. 1 Bearing Pointer
Source Switch
Push to select No. 1
source
No. 2 Bearing Pointer
Source Switch
Push to select No. 2
source
Navigation Source
Knob
Rotate to select
navigation source
FLIGHT INSTRUMENTS
11-18 For Training Purposes Only
May 03
P I LOT T R A I N I N G GU I D E
Air Data Reference Panel
The Air Data Reference Panel (ADRP) is used to set speed, altitude and barometric
pressure values, which are then sent to the EFIS for display. The two ADRPs are
installed on the center pedestal. Each panel has three rotary knobs with inset
pushbutton switches. The panel is divided into three sections: the speed reference
section, the altitude reference section and the barometric pressure section.
• the Speed Reference section is used to make changes to airspeed references (V1,
VR, V2 and VT)
• the Altitude Reference section is used to control the Minimum Descent Altitude
(MDA) and Decision Height (DH) display on the EFIS. It also incorporates a test
switch for the Radio Altimeter (RA)
• the Barometric Pressure section is used to make changes to the ADC barometric
correction function
Speed Reference Section
To manually change the speeds posted on the V-Speed table, turn the TGT/VSPDS
outer knob to either TGT (VT), or VSPDS (V1, VR and V2). Rotate the SET (inner)
knob to change the speed values. In the VSPDS position the reference speeds can be
alternately edited by pushing the SEL button and rotating the SET knob. The SET
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