A
757 
MAINTENANCE MANUAL
A
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MAINTENANCE MANUAL
CHAPTER 23 - COMMUNICATIONS
 TABLE OF CONTENTS_________________ 
 Chapter 
 Section 
 Subject_______  Subject_______  Page____  Effectivity___________ 
 COMMUNICATIONS______________ 23-00-00 
 Description and Operation  1  ALL 
 General  1 
 Antenna Locations  3 
 Communications Systems  1 
 SPEECH COMMUNICATION SYSTEM___________________________ 23-10-00 
 HF COMMUNICATION SYSTEM  23-11-00 
 Description and Operation  1  ALL 
 General  1 
 Component Details  1
 HF Communication Antenna 6
 HF Communication Antenna 6 Coupler
 HF Communication Control 1 Panel
 HF Communication Transceiver 5
 Operation  7 
 Control  10 
 Function Description  7 
 Test  10 
 Component Location  101  ALL 
 Component Index 
 Component Location 
 Adjustment/Test  501  ALL 
 Operational Test - HF  501 
 Communication System 
 System Test - HF Comm System  503 
 ANTENNA - HF COMMUNICATION  23-11-04 
 Removal/Installation  401  ALL 
 Inspection/Check  601  ALL 
 COUPLER - HF COMMUNICATION  23-11-01 
 ANTENNA 
 Removal/Installation  401  ALL 
 PANEL - HF COMMUNICATIONS  23-11-02 
 CONTROL 
 Removal/Installation  401  ALL 
 TRANSCEIVER - HF COMMUNICATION  23-11-03 
 Removal/Installation  401  ALL
23-CONTENTS
 GUN Page 1 Sep 28/01 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A 757 MAINTENANCE MANUAL
 CHAPTER 23 - COMMUNICATIONS TABLE OF CONTENTS
_________________ 
 Chapter 
 Section 
 Subject_______  Subject_______  Page____  
VHF COMMUNICATION SYSTEM  23-12-00 
 Description and Operation  1  
General  1 
 Component Details  1 
 VHF Communication Antenna  4 
 VHF Communication Control  1 
 Panel 
 VHF Communication  1 
 Transceiver 
 Operation  4 
 Control  10 
 Functional Description  4 
 Component Location  101  
Component Index 
 Component Location 
 Adjustment/Test  501  
System Test - VHF  501 
 Communication System 
 ANTENNA - VHF COMMUNICATION  23-12-03 
 SYSTEM 
 Removal/Installation  401  
PANEL - VHF COMMUNICATION  23-12-02 
 CONTROL 
 Removal/Installation  401  
TRANSCEIVER - VHF COMMUNICATION  23-12-01 
 Removal/Installation  401  
DATA TRANSMISSION AND AUTOMATIC_______________________________ 23-20-00 
 CALLING_______ 
 SELCAL SYSTEM  23-21-00 
 Description and Operation  1  
General  1 
 Component Details  1 
 Shorting Receptacle  1 
 SELCAL Alert Indicators  1 
 SELCAL Decoder  1 
 Operation  3 
 Control  3 
 Functional Description  3 
 Component Location  101  
Component Index 
 Component Location
EffectivityALL
ALLALL
ALL
ALLALL
ALL
ALL
23-CONTENTS
 GUN Page 2 Jan 20/98 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
A
757 
MAINTENANCE MANUAL
 CHAPTER 23 - COMMUNICATIONS 
 TABLE OF CONTENTS_________________ 
 Chapter 
 Section 
 Subject Subject_______ _______  Page____  Effectivity___________ 
 Adjustment/Test  501  ALL 
 System Test - SELCAL System  501 
 DECODER - SELCAL 23-21-01 
 Removal/Installation  401  ALL 
 PASSENGER ADDRESS AND ENTERTAINMENT 23-30-00___________________________________ 
 PASSENGER ADDRESS SYSTEM 23-31-00 
 Description and Operation  1  ALL 
 General  1 
 Component Details  1 
 Boarding Music Tape  4 
 Reproducer 
 Entertainment Tape  4 
 Reproducer 
 Lavatory Speakers  4 
 
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