曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
DEUs. The DEUs use these discretes to determine the position
of the isolation valve.
Air Conditioning Module
The air conditioning (AC) module sends two discretes to both
DEUs. The DEUs use these discretes to determine the position
of the main engine bleed air switches on the P5 panel.
CDS - AIR CONDITIONING AND PNEUMATIC INTERFACES
EFFECTIVITY
SHZ ALL 31-62-00
Page 64
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-62-00-113
CDS - AIR CONDITIONING AND PNEUMATIC INTERFACES
CDS - AIR CONDITIONING AND PNEUMATIC INTERFACES
EFFECTIVITY
SHZ ALL 31-62-00
Page 65
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-62-00-113
General
The display electronic units (DEU) receive discretes from these
ice and rain protection components:
* Engine and wing antice module
* Engine cowl antice valves.
Engine and Wing Antice Module
The engine and wing antice module sends three ground
discretes to both DEUs. The discretes show the position of these
switches:
* Wing antice switch
* Engine 1 antice switch
* Engine 2 antice switch.
The DEUs send the antice switch position data out on the
general purpose buses and the EEC/APU buses. The data is
used by these airplane systems:
* Digital flight data acquisition unit
* Main engine electronic controls
* APU electronic control unit.
Engine Cowl Thermal Anti-Ice Valve.
The engine cowl thermal anti-ice valves send two ground
discretes to both DEUs. These discretes indicate the position of
the valves.
The DEUs use engine cowl antice valve position to show the TAI
message on the engine display. This message is green.
The DEUs also use engine cowl antice switch and valve position
data to determine if the valve is not in the commanded position.
If it is not, the TAI message is amber.
CDS - ICE AND RAIN PROTECTION INTERFACES
EFFECTIVITY
SHZ ALL 31-62-00
Page 66
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-62-00-114
CDS - ICE AND RAIN PROTECTION INTERFACES
CDS - ICE AND RAIN PROTECTION INTERFACES
EFFECTIVITY
SHZ ALL 31-62-00
Page 67
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-62-00-114
Fuel Quantity Processor Unit
The fuel quantity processor unit (FQPU) sends fuel quantity data
for the left, right, and center tank systems to the display
electronic units (DEU) on ARINC 429 buses.
Center Tank Fuel Boost Pumps
The center tank left and right boost pumps send a low pressure
signal to the DEUs. The DEUs use this ground discrete to show
a fuel configuration alert.
The CONFIG message shows when these conditions are true:
* Output pressure from both center tank boost pumps is low
* 1,600 lb (725 kg) or more fuel in the center tank
* Either main engine operating.
Fuel System Module
Each DEU sends two ground discretes to the fuel system
module, one for each of the fuel filter bypass lights. The DEU is
the interface for the electronic engine controllers (EEC) to turn
on these annunciators when the EECs detect a fuel filter bypass
condition.
Generator Control Units
The DEUs send a GCU enable discrete to the generator control
units (GCUs) when the engine is at idle speed. The GCUs use
this 28v dc discrete to close the generator contactor breaker.
CDS - FUEL AND ELECTRICAL INTERFACES
EFFECTIVITY
SHZ ALL 31-62-00
Page 68
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-62-00-115
CDS - FUEL AND ELECTRICAL INTERFACES
CDS - FUEL AND ELECTRICAL INTERFACES
EFFECTIVITY
SHZ ALL 31-62-00
Page 69
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-62-00-115
THIS PAGE IS INTENTIONALLY LEFT BLANK
CDS - FUEL AND ELECTRICAL INTERFACES
31-62-00
Page 70
D633A101-SHZ1 Oct 10/2002
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
Electronic Engine Controllers
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
737NGAMM2(69)
