(2)
Open the access door on the side of the tape reproducer.
S 022-019
(3)
Remove the tape magazine.
TASK 23-31-06-402-053
6. Install the Tape Magazine_________________________
A. References
(1)
20-10-01/401, E/E Rack-Mounted Components
(2)
24-22-00/201, Electrical Power - Control
B. Access
(1)
Location Zone
120 Main Equipment Center (RH side)
(2)
Access Panel
119BL Main Equipment Center
C. Install the Tape Magazine
S 412-023
(1) Open the access door on the side of the tape reproducer.
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(2) S 432-024Install the tape magazines in the correct positions as shown on the label on the inside of the access door. (a) Make sure the tape magazines have the correct side out.
(3) S 412-025Close the access door.
(4) S 422-026Install the Boarding Music Tape Reproducer (Ref 23-31-06/201).
(5) S 712-027Do the procedure, Test of the Boarding Music Tape Reproducer.
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PASSENGER ADDRESS (PA) SPEAKER - REMOVAL/INSTALLATION
_____________________________________________________
1. General_______
A. This procedure has two tasks. The first task removes a PA speaker. The second task installs the speaker and does a test of the installation.
B. The passenger address speakers (referred to as the PA speakers) are in the cabin ceiling panels. The sound comes from the main section of the PA amplifier.
TASK 23-31-08-004-001
2. PA Speaker Removal__________________
A. References
(1) AMM 25-22-02/401, Lowered Ceiling Panels - Removal/Installation
B. Access
(1) Location Zone
200 Upper Half of Fuselage
C. Prepare to Remove the PA Speaker
S 864-002
(1) Open this circuit breaker on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:
(a) 11C22, PASS ADRS AMPL
S 014-004
(2) Lower the ceiling panel for the PA speaker (AMM 25-22-02/401).
D. PA Speaker Removal (Fig. 401)
S 014-005
(1) Remove the speaker cover:
(a)
Remove the 4 screws that attach the cover.
(b)
Remove the speaker cover.
(c)
Keep the speaker cover and the screws for the installation.
S 024-006
(2) Remove the PA speaker from the ceiling panel:
(a) Disconnect the wires from the PA speaker.
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PA SPEAKER (8 LOCATIONS)
A
Passenger Address Speaker Installation
Figure 401
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(b) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 COMMUNICATIONS 通讯(54)
