HF Communications System - Component Index
Figure 101

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D03643
A
757 FAULT ISOLATION/MAINT MANUAL

LEFT HF
COMMUNICATION RIGHT HF
FWD
COMMUNICATION
TRANSCEIVER,
M152 (E6-3)

SEE

AFT EQUIPMENT CENTER

HFS-700  CONTROL INPUT FAIL SQL/LAMP TEST COLLINS PHONE MIC KEY INTERLOCK LRU FAIL 

LEFT OR RIGHT HF COMMUNICATION TRANSCEIVER, M152 OR M153

GUN 051 GUN 001-050,052-999
HF Communications System - Component Location
Figure 102 (Sheet 1)

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757
FAULT ISOLATION/MAINT MANUAL

LEFT HF COMMUNICATION CONT PANEL, M82
RIGHT HF COMMUNICATION CONT PANEL, M83

LEFT OR RIGHT HF COMMUNICATIONLEFT OR RIGHT HF COMMUNICATION
CONTROL PANEL, M82 OR M83 CONTROL PANEL, M82 OR M83

HF Communications System - Component Location
Figure 102 (Sheet 2)

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757 FAULT ISOLATION/MAINT MANUAL
HF COMMUNICATION ANTENNACOUPLER BAY
SEE C
322CL
VERTICAL STABILIZER
LEFT HF COMMUNICATION ANTENNA COUPLER, M241
SEE D
HF ANTENNA
RIGHT HF COMMUNICATION HF COMMUNICATION
ANTENNA
ANTENNA COUPLERCOUPLER, M242
BAY ACCESS PANEL, SEE D 322CL
HF COMMUNICATION ANTENNA COUPLER BAY
C
J3
J1
J2
LEFT OR RIGHT HF COMMUNICATION ANTENNA COUPLER, M241 OR M242
D
HF Communications System - Component Location Figure 102 (Sheet 3)
E05078
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A

757 MAINTENANCE MANUAL
 HF COMMUNICATION SYSTEM - ADJUSTMENT/TEST
_________________________________________
 1.  General_______
 A.  This procedure includes an operational test and a system test. The operational test is a short test which uses the self-test status lights on the transceiver. The system test is a complete test of the HF communications system.
 TASK 23-11-00-715-003
 2.  Operational Test - HF Communication System__________________________________________
 A.  General
 (1)  This test does a short check of the left HF communication system and the right HF communications system (if installed). The test uses the status lights on the transceiver front panel.
 B.  Equipment
 (1)  Handheld or headset/boom microphone
 C.  References
 (1)  AMM 24-22-00/201, Electrical Power - Control
 D.  Access
 (1)  
Location Zones
 119 Main Equipment Center (LH)
 120 Main Equipment Center (RH)
 211 Control Cabin (LH)
 212 Control Cabin (RH)
 153 Aft cargo compartment (LH)
 154 Aft cargo compartment (RH)

 (2)  
Access Panel
 119BL Main Equipment Center Access Panel
 822 Aft Cargo Compartment Door

 E.  Prepare for Test
 S 865-002
 (1)  
Supply electrical power (AMM 24-22-00/201).
　
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