Introduction, Introduction 1-1, Figure 1-1 typical eadi display – BendixKing FPI 3501B System FPD 500 User Manual
Page 5: Figure 1-2 typical ehsi display, Fpd 500 flat panel display system, Rev. 0 jan/97

FPD 500 FLAT PANEL DISPLAY SYSTEM
1. INTRODUCTION
This Pilot’s Guide is for the
AlliedSignal Commercial Avionics
Systems (CAS) Flat Panel Active
Matrix LCD version of the 5ATI
Attitude Director Indicator (ADI)
and Horizontal Situation Indicator
(HSI) retrofitted into various air-
craft types (e.g. DC-10, B727,
etc.).
Throughout this document, the
terms “ADI” and “HSI” are used to
identify the two primary functions
of the indicator even though the
indicator itself is more correctly
identified as an EADI/EHSI
(Electronic ADI or HSI).
The intended use of the ADI/HSI
FPI is to display the aircraft's pri-
mary attitude (ADI) and to display
course, heading, glideslope, etc.
(HSI). The indicator replaces
electromechanical ADI and HSI
indicators with Active Matrix LCD
technology. A single indicator
(herein referred to as the
"ADI/HSI") can provide the capa-
bility to function as either an
Attitude Direction Indicator (ADI)
or a Horizontal Situation Indicator
(HSI) depending on configuration
strap settings.
Reversionary mode capability is also provided so that during normal
operation, in the event of a failed ADI or HSI, the other FPI has the
capability to assume the function of both in the “Integrate” mode.
Reversionary mode data is hard wired into each ADI and HSI as
much as possible. Reversionary mode is discussed in more detail
later in this document.
Introduction
1-1
Rev. 0
Jan/97
A
N
M
R
I
DIM
TEST
BRT
10
20
20
10
5
5
5
5
10
10
20
20
F
S
FD
DH
GS
Figure 1-1
Typical EADI Display
N
M
R
I
DIM
TEST
BRT
0
33
30
27
24
21
15
12
9
6
3
18
000
GS
TRU
ILS 1
INS1
1234
INS2
1324
Figure 1-2
Typical EHSI Display