R 1EFF : 106-149, 301-399, 401-499, 1 23-44-42Page 412 1 1 Aug 01/05 1 1 1CES 1R **ON A/C 106-149, 301-399, 401-499,
4. Procedure
_________
Subtask 23-44-42-420-050
A. Installation of the Isolation Unit
(1)
If required, assemble the PC-board (2) to the PC-board bracket (6) and attach it with the nuts (4) and the washers (5).
(2)
Put the PC-board bracket (6) together with the PC-board (2) in position to the mounting rail (3).
(3)
Put the end-clamp (8) in position to the mounting rail (3) and tighten the clamp screw (7).
(4)
Safety the clamp screw (7) with lockwire, corrosion-resistant steel, dia 0.63mm on the PC-board (2).
(5)
Connect the wires of the cable harness (1) to the terminals of the PC-board (2).
NOTE : For the correct connection refer to the table "Wire Connection
____ to Connector 4RJ" of the applicable illustration.
(6) Make sure that the contacts, which are not used, are covered with red blanking plugs.
R 1EFF : 106-149, 301-399, 401-499, 1 23-44-42Page 413 1 1 Aug 01/05 1 1 1CES 1
Subtask 23-44-42-865-051
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 106-149, 401-499,
R 49VU COM/CIDS/DIR ESS/2 **ON A/C 106-149, 301-399, 401-499, 157RH G02
49VU COM DIR ESS/1 **ON A/C 301-399, 150RH G01
R 49VU COM DIR ESS/2 **ON A/C 106-149, 401-499, 157RH G02
121VU COM NAV/CIDS/DIR NORM/2 **ON A/C 301-399, 156RH M06
R 121VU COM NAV/CIDS/DIR NORM/2 121VU COM NAV/CIDS/DIR NORM/1 **ON A/C 106-149, 301-399, 401-499, 156RH 151RH M07M06
Subtask 23-44-42-710-050
C. Do the operational test of the service interphone (Ref. TASK 23-44-00-700-001).
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5. Close-up________
Subtask 23-44-42-410-050
A. Close Access
R (1) FOR 4RJ1
(a) Close the access door 822.
R (2) FOR 4RJ2
(a) Close the access door 824 (Ref. TASK 52-41-00-410-002).
R (3) FOR 4RJ3, 4RJ4
(a) Install the partition 132PW at FR34 (Ref. TASK 25-54-12-400-001).
(b) Remove the actuator safety locks and close the FWD
cargo-compartment door. (Ref. TASK 52-30-00-860-002)
FOR 4RJ5
(c) Close the access door 312AR.
(4) Remove the access platform(s).
R 1EFF : 106-149, 301-399, 401-499, 1 23-44-42Page 415 1 1 Aug 01/05 1 1 1CES 1 AUDIO MANAGEMENT (INTEGRATING/ FLIGHT INTERPHONE/SELCAL/CALL)
_____________________________________________________________ DESCRIPTION AND OPERATION
_________________________
1. General
_______
A. The audio management system provides the means for using:
(1)
All the radio communication and radio navigation facilities installed on the aircraft:
-
In transmission mode: it collects the microphone inputs of the various crew stations and directs them to the communication systems.
-
In reception mode : it collects the audio outputs of the communication systems and the navigation receivers and directs them to the various crew stations.
(2)
The flight interphone system:
-
Telephone links between the various crew stations in the cockpit.
-
Telephone links between the cockpit and the ground crew from the external power receptacle.
(3)
The SELCAL (Selective Calling) system:
-Visual and aural indication of calls from ground stations equipped with a coding device used by the aircraft installation.
(4)
Certain calls:
-Visual and aural indication of the ground crew and the Cabin Attendants' calls.
2. System Description
__________________
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-220,
(Ref. Fig. 001)
R **ON A/C 106-149, 221-299, 301-399, 401-499,
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