757
MAINTENANCE MANUAL
B. Control
_______
(1)
To place the system in operation, supply electrical power (Ref 24-22-00/201).
(2)
On overhead panel P11, make sure the INTERPHONE CABIN SERVICE circuit breaker is closed.
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FAULT ISOLATION/MAINT MANUAL
CABIN INTERPHONE SYSTEM
* SEE THE WDM EQUIPMENT LIST
Cabin Interphone System - Component Index Figure 101
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FAULT ISOLATION/MAINT MANUAL
Cabin Interphone System - Component Location
Figure 102 (Sheet 1)
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757 FAULT ISOLATION/MAINT MANUAL
FLIGHT COMPARTMENT
PILOTS' CALL PANEL, M51
(EXAMPLE)
Cabin Interphone System - Component Location
Figure 102 (Sheet 2)
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FAULT ISOLATION/MAINT MANUAL
AFT MID RIGHT ATTENDANT
FORWARD MID HANDSET, B61
RIGHT ATTENDANT (DOOR 3 RIGHT)
HANDSET, B61
(DOOR 1 LEFT) (DOOR 4 LEFT) SEE
HANDSET LOCATIONS
Cabin Interphone System - Component Location
Figure 102 (Sheet 3)
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757 MAINTENANCE MANUAL
CABIN INTERPHONE SYSTEM - ADJUSTMENT/TEST
_________________________________________
TASK 23-42-00-735-001
1. System Test - The Cabin Interphone System_________________________________________
A. General
(1) This procedure contains a task which gives the operational test for the cabin interphone system. Do this to make sure the pilots' call panel and the attendant handsets are serviceable.
B. References
(1) 24-22-00/201, Electrical Power - Control
C. Access
(1) Location Zones
200 Upper Half of the Fuselage
D. Prepare for the System Test
S 865-002
(1)
Supply electrical power (Ref 24-22-00).
S 865-003
(2)
Make sure these circuit breakers on the overhead circuit breaker panel, P11, are closed:
(a)
11B18, WARN ELEX B
(b)
11C22, PASS ADRS AMPL
(c)
11C23, INTERPHONE CABIN SERVICE
(d)
11H35, AURAL WARN SPKR RIGHT
S 865-004
(3) Make sure all handsets are on the hook.
E. The Test of the Pilots' Call Panel
S 735-008
(1) Do these steps to do a test of the pilots' call panel:
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