Primary Flight Displays (Pfds) - BOMBARDIER LEARJET 40 Pilot's Manual

Pilot's Manual
PRIMARY FLIGHT DISPLAY (PFD)
The PFD (DU #1 and DU #4) is a single display in which all of the re-
quired flight and navigation data is displayed for each pilot. The PFD
(Figure 5-10) format is divided into two main sections. The top half dis-
plays an Attitude Director Indicator (ADI) with an airspeed tape to the
left, and a barometric altitude tape to the right. A Horizontal Situation
Indicator (HSI) is located on the lower half of the PFD. The HSI can be
displayed in three different formats. The three options are full 360°
compass rose (HSI), a 120° compass arc display (ARC), and a 120° map
display (MAP). The MAP cannot be displayed on the PFD if the adja-
cent display (DU #2 or DU #3) is already displaying an MFD MAP for-
mat. Weather information can be displayed on the PFD ARC or MAP
format. To the right of the HSI, a Vertical Speed Indicator (VSI) is dis-
played, and to the left, navigation information is annunciated.
Comparison monitors provide indications to the pilots that there is a
difference between the data displayed on each PFD. This monitoring is
a function within the IC-600s that compares what is being displayed on
one side with either the cross-side displayed data or the secondary
source data. Should data be out of tolerance between what is being re-
ported from the source, and what is being sent to the display units, or
if avionics related exceedances are detected, CAS will illuminate.
The following CAS illumination is specific to the PFDs:
CAS
PFD CHECK
The brightness of each PFD is controlled by the DIM control on each re-
spective display controller. Pilot's PFD (DU #1) receives 28-vdc power
from the left essential avionics bus by a 15-amp circuit breaker DU 1 lo-
cated in the INSTRUMENT/INDICATIONS group of the pilot's circuit
breaker panel. Copilot's PFD (DU #4) receives 28-vdc from the right es-
sential avionics bus by a 15-amp circuit breaker DU #4 located in the
INSTRUMENT/INDICATIONS group of the copilot's circuit breaker
panel.
5-42
Color
Amber The associated (L or R) Primary Flight Dis-
play (PFD) is displaying invalid data.
Description
PM-132A