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OPERATING MANUAL
PSP 601A-6
SECTION 3
AURAL/VISUAL WARNING SYSTEMS
TABLE OF CONTENTS
Page
1. GENERAL 1
2. AURAL WARNING SYSTEM 1
3. MASTER CAUTION AND WARNING SYSTEM 2
LIST OF ILLUSTRATIONS
Figure
Number Title Pay-:
1 Aural Warning System - Simplified Block Diagram 3
2 Aural Warning Test Panel 4
3 Master Caution and Warning System - Simplified Block Diagram 5
4 Master Caution and Warning System 10-Channel Annunciator Panel 6
5 Master Caution and Warning System 8-Channel Annunciator Panel 7
6 Master Caution and Warning System Switches and Switch/Lights 8-
3-CONTENTS
Page 1
Apr 02/87
cacnhaaduaeinr Qer
OPERATING MANUAL
PSP 601A-6
SECTION 3
AURAL/VISUAL WARNING SYSTEMS
GENERAL
There are two aircraft central warning systems: the aural warning system,
which provides audible tones associated with eight significant events, and
the master caution and warning system which advises the crew of system
malfunctions.
AURAL WARNING SYSTEM (Figures 1 and 2)
The aural warning system monitors several events and provides a separate
aural warning for each event, as follows:
Event
Engine fire
Overspeed
Airspeed too high for flap setting
Stall
Incorrect take-off configuration
Altitude alert
Landing gear not down and locked
HF call detected by selcal unit
Autopilot disconnect
(Aircraft 5041 and 5146)
Warning
Fire bell
CI acker
Wailer
Warbler
Intermittent horn
C chord
Horn
Chime
Cavalry charge
The aural warnings are presented on the flight compartment speakers and the
intercom system.
The take-off configuration warning circuitry monitors the throttle setting,
landing gear and control surface positions to ensure that they are correct
for take-off. If they are not correct and the throttles are advanced towards
take-off power, the take-off configuration warning circuitry provides an
output to the aural warning system to sound the intermittent horn.
The aural warning system consists of the aural warning unit and test panel.
On aircraft 5041 and 5146,
Liit! aural warniny sysiem consists of two aural warning units and a test panel,
SECTION 3
Page 1
Aug 14/02
cacnhaadnaeinr per
OPERATING MANUAL
PSP 601A-6
3. MASTER CAUTION AND WARNING SYSTEM (Figures 3 through 6)
The master caution and warning system is an indicating system that provides the
flight crew with aircraft system caution, warning, advisory and safe indication
annunciations. Cautions are annunciated by amber lights, warnings are
annunciated by red lights and advisories and safe indications are annunciated
by white or green lights, depending on the function of the light. The
annunciator lights are not part of the master caution and warning system, but
are part of the systems that the lights concern. The related systems are shown
in Figure 3.
Legends on the 10-channel and 8-channel annunciator panels also come on (amber)
to identify the malfunctioning system. Two master caution lights, located on
the glareshield, flash (white) to indicate an active caution annunciation on
the 10-channel or 8-channel annunciator panel. Warning, advisory and safe
indication annunciations do not trigger the master caution lights or the
legends on the 10-channel or 8-channel annunciator panels.
SECTION 3
Page 2
Apr 02/87
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haJlenqer
OPERATING MANUAL
PSP 601A-6
FLIGHT GUIDANCE
CONTROLLER
NAVIGATION
COMPUTERS
ENGINE FIRE
DETECTOR UNITS
AIR DATA
COMPUTERS
LANDING GEAR
CONTROL UNIT
FLAP
CONTROL UNIT
SELCAL UNIT
TOC WARNING
SYSTEM
SINGLE
CHANNEL [j]
DUAL CHANNEL g ]
STALL
PROTECTION
COMPUTER
AURAL
WARNING
UNIT NO. 1
AURAL
WARNING
TEST PANEL
S AURAL
WARNING
UNIT NO. 2
INTERCOM
SYSTEM
iW
FLIGHT DESK
SPEAKERS
H S3
EFFECTIVITY
A/C 5001 TO 5134 PRE SB 601-0396
A/C POST SB 601-0396 AND A/C 5135 & SUBS
A/C 5041 AND 5146
A/C 5001 TO 5099 PRE SB 601-0390
A/C POST SB 601-0390 AND A/C 5100 & SUBS
Aural Warning System -
Simplified Block Diagram
Figure 1
SECTION 3
Page 3
Aug 14/02
cacnnasdUasirn psr
OPERATING MANUAL
PSP 601A-6
EFFECTIVITY : A/C 5041 AND 5146
VOLUME CONTROL TONE TEST SWITCH
Adjusts the level of the audio Selects the aural warning for
output. testing purposes.
TONE MUTED
SWITCH/LIGHT
Mutes the fire bell and waiter
aural warnings.
EFFECTIVITY : A/C 5001 TO 5040, 5042 TO 5145 AND 5147 AND SUBS
COPILOT'S SIDE PANEL
Aural Warning Test Panel SECTION 3
Figure 2 page 4
Aug 14/02
OPERATING MANUAL
PSP 601A-6
ANTI-ICE SYSTEM
STALL/AOA SYSTEM
FLIGHT MANAGEMENT
SYSTEM
LANDING GEAR
CONTROL SYSTEM
ENGINE CONTROL £
INDICATING SYSTEMS
EMERGENCY LIGHTING
SYSTEN
SELECTIVE CALL
SYSTEU
FIRE OETECTION SYSTEM
FUEL CONTROL SYSTEM
• i i
APU CONTROL SYSTEM
ANTI-SKID SYSTEM
ELECTRICAL POWER
SYSTEM
AUTOMATIC FLIGHT
CONTROL SYSTEM
FUEL SYSTEM
FLIGHT DATA RECORDER
[ CD
ENVIRONMENTAL CONTROL
SYSTEM
WEATHER RADAR SYSTEM
DOOR WARN SYSTEU
FLIGHT CONTROL SYSTEM
SPOILER CONTROL
SYSTEM
HYDRAULIC SYSTEM
DIMMING MODULES
DIMMING MODULES
• '
| LIGHT TEST SWITCHES
8-CHANNEL SYSTEM
ANNUNCIATOR PANEL
i
ELECTRONIC
CIRCUIT BREAKER
' t
I
'
10-CHANNEL SYSTEM
ANNUNCIATOR PANEL
t
1
i *
> Ltl
MASTER CAUTION
i
f
LIGHTS
EFFECTIVITY:
QPQST SB 601-0394
Master Caution and Warning System -
Simplified Block Diagram
Figure 3
SECTION 3
Page 5
Apr 10/95
OPERATING MANUAL
PSP 601A-6
APU ANNUNCIATOR
Indicates a fault in the APU.
a w CONT ANNUNCIATOR
indicates a fault in the:
• Air conditioning
- Cabm pressurizaiion
TEST/RECALL SWITCH
When held in the TEST position, at!
annunciator legends and master
caution fights come on.
When a fault indication is reset by
pressing the MASTER CAUTION.
PRESS TO RESET switch/lights,
and the fault st3t exists; setting the
TEST/RECALL switch to RECALL
causes the fault indication to be
ANTMCE ANNUNCIATOR
Indicates a fault in the:
Anti icing system
- ADS sensor heater control
Ice detection system
ANTI-SKID ANNUNCIATOR
indicates a fault in the anti-skid
system.
Controls the brightness of all the
master caution 9nd warning system
rotated lights.
MLG BAY OVHT FAIL
ANNUNCIATOR
Indicates a fault in the main lancing
gear overheat detect or. NAV ANNUNCIATOR
indicates a fault in the navigation
systems.
OVERHEAD PANEL
FIT REC ANNUNCIATOR
Indicate* when the flight
data recorder fails.
FIT REC
^
EFFECTlVmr: POST SB 601-089*
o
Master Caution and Warning System
10-Channel Annunciator Panel
Figure 4
SECTION 3
Page 6
Apr 10/95
OPERATING MANUAL
PSP 601 A - 6
DOORS ANNUNCIATOR
indicates that the passenger door is
unlocked or unarmed or the baggage
door Is unsafe.
FUEL ANNUNCIATOR
Indicates a fault in the fuel
distribution system.
ELEC ANNUNCIATOR
Indicates a fault in the:
- AC power generation and control
- APU power generation and
control
OC power generation
ENGINE ANNUNCIATOR
indicates a fault in the:
- Engine vibration monitoring
system
- Thrust reverser
- Engine speed control system
FIRE fAULT
FIRE FAULT ANNUNCIATOR
Indicates a fault in the:
* Engine fire detection and warning
- APU fire detection and warning
- Engine fire extinguishing
ENGINE
WOW ANNUNCIATOR
indicates a WOW fauh.
FLT CONT ANNUNCIATOR
Indicates a fault in the:
Pitch trim system
Ground and flight spoilers
Right control morwtonng
Stability augmentation system
EMERG LTG FLT REC
ANNUNCIATOR
Indicates when the emergency
lighting ARM/OFF/ON switch is set
to OFF or the flight data recorder
faits.
OVERHEAD PANEL
EMERG LTG ANNUNCIATOR
indicates when the emergency
ligfitinQ ARM/OFF/ON switch
is set to OFF
EFFECnVTTY: POST SB 601*0394 o
Master Caution and Warning System
8-Channel Annunciator Panel
Figure 5
SECTION 3
Page 7
Apr 10/95
chauencjer
OPERATING MANUAL
PSP 601A-6
MASTS) CAUTION PRESS TO
RESET SWITCH/LIGHT
Flashes to indicate an active caution
annunciator on the 10 or 8-channel
annunciator panel. When pressed,
the switch/light resets itsetf and the
annunciator on the 10 or 8-channet
annunciator panel.
WARN ITS AND WARNING LT
TEST SWITCHES
When set to the TEST or ON
position, as applicable, at! the master
caution related lights are turned on.
MASTER
! CAUTION
PRESS
I TO RESET
WARN
ITS
TEST
OFF
GLARESHIELD PILOTS AND COPILOTS
FACIA PANEL
CENTRE PEDESTAL
Master Caution and Warning System
Switches and Switch/Lights
Figure 6
SECTION 3
Page 8
Apr 02/87 | 
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