31-51-00
 ALL  ú ú 05 Page 12 ú Jan 28/02

A
757
MAINTENANCE MANUAL

APU FIRE APU FIRE (R)PS RESET A
1
PS RESET
1. PRESSING EITHERMASTER WARN RESET
AFT CARGO FIRE AFT CARGO FIRE (R)PS RESET B
FWD CARGO FIRE FWD CARGO FIRE (R)
SW SILENCES ANYL ENG FIRE L ENG FIRE (R) +12VFIRE BELL CONDTN
A & B-12V2. ACTG THE APPRO-
R ENG FIRE  R ENG FIRE (R)POWERPRIATE F SW WILL
+5V
SUPPLY SIL F BELLFIRE/OVHT LOGIC TEST
3.  THE GEAR DN & LKDCONDTN IN THE AIRWILL INHB WW FIRE
WHEEL WELL FIRE WHEEL WELL FIRE (R) BELL DUCT LEAK & W/WL/R EICAS CMPTR
VDD
FIRE CARD EXTERNAL MEMORY ACCESSMASTER WARN
EA
PROGRAM NORMAL POWER
NORMAL
MICROPROCESS
APU FIRE
FIREAFT CARGO FIRE
BELL
FIRE

RESET WAVE-FWD CARGO FIRE
FORM
L ENGINE

SET INPUTS
GEN
FIRE SW

L ENG FIRE
R ENG FIRE
AURAL WARN BELLWHEEL WELL FIRE
FIRE
AURAL WARN CHIMEL FIRE HANDLE
NORMALBELLLOGIC R FIRE HANDLE
FIRE
APU FIRE HANDLE

1
GAIN CONTROL-WL ENGINEFWD CARGO FIRE SWRESET INPUTS
GAIN CONTROL-XAFT CARGO FIRE SW
FIRE SWL SIREN/OWL
MASTER WARN RESETNORMALGEAR DOWN & LOCKEDGEAR DOWN& LOCKED AIR
FIREELEX UN PROX
APU FIRE SW
CAPT MASTER
WARN & CAUTION

DELAY LIGHT SWGND 20 SEC SYS NO. 1
INHIBIT
ARMED

AIR/GND RELAY
DETECT
FWD CARGO SW

FEET
ARINC
<400
ALTITUDE
429DECODER CHIME AURAL WARN BELL
RCVR
WAVE-L RAD ALTM W FORMAURAL WARN CHIME
ARMED  F/O MASTER GEN
RECEIVER
ARINC
X
MONITOR
WARN & CAUTIONGAIN
AFT CARGO SW  429
LIGHT SW SCHEDULE
RCVR
Y
GAIN CONTROL-YCONT PANEL DECODER
APU/CARGO FIRE
Z
ARINC
GAIN CONTROL-Z
429
CHIMESOFTWARE
BUS NO. 4
RCVR
R SIREN/OWL
GND CREW CALL HARDWARE
R ADC/ADIRU GROUND CREW CALL
PILOTS CALL PANEL
CHIME

SELCAL SELCAL DCDR CABIN INTERPHONE AUDIO ACCESS UNIT
BELL/CHIME
Bell/Chime Aural Warning Schematic
Figure 5

 ú

 31-51-00
 ALL  ú ú 02 Page 13 ú Jan 28/02

A

757
MAINTENANCE MANUAL

 6)  The firebell function is cancelled if one of the following occurs: a) The left or right Engine Fire handle switch is pulled. b) The Auxiliary Power Unit Fire handle switch is pulled. c) The Cargo Compartment Fire switch is set to the FWD or
 AFT position. d) The landing gear is down and locked (wheel well fire only). e) Either the captain's or first officer's Master Warning light is pressed.
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 儀表 CHAPTER 31 - INSTRUMENTS 2(94)