
fails, the CAS will present a "DU 1, 2, 3 or 4
FAN FAIL" message (Table 16-2). Also, if
the temperature of the DU sub-assemblies
reaches approximately 120° C, the CAS will
present a "DU 1, 2, 3 or 4 OVHT" message
(Table 16-2).
As illustrated in Figure 16-2, the two outboard
DUs function as the pilot and copilot's pri-
mary flight display (PFD). Normally, the pi-
lot's inboard DU is used to display EICAS
information, and the copilot's inboard DU is
used for the multi-function display (MFD);
however, EICAS, PFD, or MFD formats can be
displayed on the inboard DUs.
BEZEL CONTROLLERS
Each DU is equipped with a bezel controller
which consists of pushbuttons and knobs
(Figure 16-25). The PFD bezel controllers
(DUs 1 and 4) provide for selection of radio
altitude (RA) and barometric altitude (BARO)
minimums, and barometric corrections. The
outboard DUs also have slip/skid indicators
mounted above them, they are not located on
the bezels. The bezel controller on the two
inboard DUs (DU2 and DU3) consist of push-
buttons that access an array of menus, and
signal output circuitry to the display controller
for rotary knob control.
PFD Bezel Controller
As illustrated in Figure 16-26, the PFD bezel
controller is attached to the front of the dis-
play units, at the bottom. It performs the fol-
lowing functions:
• RA/BARO – This pushbutton allows the
minimums knob to be used to set values
for either RA or BARO. The digital read-
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
16-37
FOR TRAINING PURPOSES ONLY
FlightSafety
international
33
30
W
N
3
6
E
12
15
S
21
2
4
3
2
1
0
1
2
3
1000
20
20
10
10
10
10
150
4500
29.92 IN
50
00
160
180
120
100
160
.400
M
GS
LOC
HDG
AP
YD
SPD
GS
180 RA
HDG
001
359
CRS
ILS1
13.1
NM
25
TGT
VOR1
ADF2
RA/BARO
STD
BARO
MINIMUMS
43
80
20
00
Honeywell
Honeywell
14
1
0
9
Honeywell
Honeywell
STAB
TGT
WX
-4
°
315
°
47.0
3
0
33
N
3
6
50
50
360
KDVT
LL01
PBD01
PLAB1
PLAB2
#TOC
FL300
25
FMS1
KDVT
12.5 NM
12 MIN
CHK EICAS
MAG2
300
TAS
+15
SAT
245
GSPD
SUMRY ELEC
HYD
RTN
ECS
FLT
FUEL
M/P
RNG
AMPS
AMPS
APU
GEN
GEN
A
R
28.0
38
°
C
28.0
50
AMPS
28.2
L
35
L ESS VOLT
EMER BUS VOLTS
R ESS VOLT
BATT TEMPS
0
65
Figure 16-25. Typical PFD and MFD Displays