MFD Bezel Controller
Control of the MFD is accomplished via six
bezel buttons and one rotary knob attached to
the unit below the display screen. The MFD
bezel controller is physically identical to the
EICAS bezel controller as illustrated in Figure
16-28, but functionally it is quite different. The
function of each bezel button is dependent on
the configuration of the MFD and the menu dis-
played.
DISPLAY CONTROLLER
The display controller (Figure 16-29) pro-
vides the means for each pilot to control the
display of the on-side PFD and to activate the
EFIS test function. The display controllers
also provide a data acquisition function, col-
lecting inputs from sources such as the bezel
controllers, guidance controller, joystick, etc.
The display controllers pass these inputs to the
corresponding IC-600 for processing.
The display controller is configured with 7
pushbuttons along the top of the panel, a mo-
mentary test pushbutton with concentric DU
dimming knobs, and two rotary knobs used to
select source references for display of the
bearing pointers. Each of the panel mounted
controls, and functions is discussed below.
With display controller failure, a power-up
default value is used to generate the PFD dis-
play. All pushbuttons are momentary action.
Display Controller Buttons
IN/HPA – Allows the operator to select an al-
titude display on the PFD that is corrected
f o r e i t h e r i n c h e s o f m e r c u r y o r
HectoPascals. Power-up default is in inches
of mercury.
CUE – Allows the pilots to select either a sin-
gle cue or cross pointer flight director
command bar display on the attitude in-
dicator. Power-up default is single cue.
The two flight director command cues are
d e s c r i b e d f u r t h e r u n d e r P R I M A RY
FLIGHT DISPLAY in this chapter.
FPA – Controls selection and deselection of
the flight path angle symbol and flight
path acceleration display. Power-up de-
fault option is FPA off. The FPA symbol
position is calculated by the FMS and
AHRS, and shows the aircraft flight path
angle in reference to the horizon. The ac-
celeration carrot moves up and down be-
side the FPA symbol to show relative
acceleration or deceleration. When it is
pointing at the wingtip of the FPA, speed
is stabilized.
WX – Allows operators to select or deselect
weather radar display on the PFD. The
power-up default is off. If the HSI format
is being displayed, selection of WX ON au-
tomatically selects a partial compass ARC
on the PFD. WX can be selected on the
L E A R J E T 4 5
P I L O T T R A I N I N G M A N U A L
16-40
FOR TRAINING PURPOSES ONLY
FlightSafety
international
Figure 16-29. Display Controller
OFF
NAV
ADF
FMS
FMS
ADF
NAV
OFF
BRG
BRG
Honeywell
OUTBD
DU
INBD
DU
DIM
PUSH
TO
TEST
In
hPa
CUE
FPA
WX
HSI
FMS
NAV