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ALL ú ú 02 Page 502 ú Jul 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
FLIGHT INTERPHONE SYSTEM - DESCRIPTION AND OPERATION
____________________________________________________
1. General (Fig. 1 and 2)_______
A. The flight interphone system provides the flight crew with capabilities to communicate with each other and provides the means for them to transmit and receive on airplane communication radio systems and receive on airplane navigation radio systems.
B. AIRPLANES WITHOUT DIGITAL AUDIO CONTROL SYSTEM; The flight interphone system consists of audio selector panels, an audio accessory unit, jack panels, push-to-talk (PTT) switches on the control wheel, handheld microphones, headsets, boom microphone/headsets, oxygen mask microphones, and loudspeakers.
C. AIRPLANES WITH DIGITAL AUDIO CONTROL SYSTEMS; The flight interphone system consists of audio selector panels, a remote electronic unit, jack panels, push-to-talk (PTT) switches on the control wheel, handheld microphones, headsets, boom microphone/headsets, oxygen mask microphones, and loudspeakers.
D. The captain and first officer each have an audio selector panel, a cockpit speaker, a control wheel PTT switch, a boom microphone headset and oxygen mask microphone, plus jacks for a headset and a handheld microphone.
E. The first observer has an audio selector panel, an oxygen mask microphone, a handheld microphone and a headphone. The second observer has a headphone jack. The audio selected by the first observer is heard at both observer stations.
F. The flight interphone system receives power from the dual power source of 28v dc battery bus and 28v dc bus No. 2, through circuit breakers and diodes to allow either bus to power all circuits on load control center P6.
2. Audio Selector Panel (Fig. 1)____________________
A. The audio selector panel enables the flight crewmembers to transmit and receive on the radio communication systems, communicate using the flight and service interphone systems, and make announcements over the PA system. Airplane navigation system can also be monitored.
B. Three audio selector panels are located in the flight compartment. Two are on the P8 aft control stand for the captain and the first officer, and one on the P5 aft overhead panel for the observer.
C. The front panel of the audio selector panel has the following switches:
(1) Microphone Selector Switches
(a) The microphone selector switches are used to connect the boom, oxygen mask, or hand microphone to the interphone, passenger address (PA), or any of the selectable transmitters.
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23-51-00
ALL ú ú 05 Page 1 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SELECTOR PANEL SEE
Flight Interphone System Component Location
Figure 1 (Sheet 1)
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23-51-00
ALL ú ú 35 Page 2 ú Mar 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500
MAINTENANCE MANUAL
MIC SELECTOR
MIC SELECTOR
w w w w w w
w SERV FLT
1 -VHF- 2 1 -HF- 2 PA SERV FLT
INT INT 1-VHF-2 1-HF-2 PA
INT INT
1 - NAV - 2 1 - ADF -2 MKR 1-NAV-2 1-ADF-2 MKR SPKR
B R
R/T MASK B R/T MASK V ALT
V R
I/C BOOM NORM
I/C BOOM
AUDIO SELECTOR PANEL AUDIO SELECTOR PANEL B1 B2
AUDIO ACCESSORY UNIT REMOTE ELECTRONICS UNIT C1 C2
1
AIRPLANES WITHOUT DIGITAL FLT INT SYSTEM 2
AIRPLANES WITH DIGITAL FLT INT SYSTEM
Flight Interphone System Component Location Figure 1 (Sheet 2)
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23-51-00
ALL ú ú 12 Page 3 ú Mar 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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本文链接地址：737-300 400 500 AMM 飞机维护手册 通讯 COMMUNICATIONS(78)
