757
MAINTENANCE MANUAL

 S 865-054
 (11) Do the activation procedure for the spoilers if you did the deactivation procedure (AMM 27-61-00).
 S 865-146
 CAUTION: DO NOT OPERATE BULK ERASE TEST FOR FIVE MINUTES ON TAPE BASED
_______ UNIT. PERMIT EQUIPMENT TO COOL.
 (12) AIRPLANES WITH LORAL/FAIRCHILD TAPE BASED VOICE RECORDER; Push and hold the ERASE switch on the voice recorder control panel for 3 seconds.
 (a)  Make sure that you hear a modulated sound in the headphone for approximately 5 to 10 seconds.
 S 865-065
 (13)
 AIRPLANES WITH LORAL/FAIRCHILD SOLID STATE VOICE RECORDER; Push and hold the ERASE switch on the voice recorder control panel for 3 seconds.

 (a)  Make sure that you hear a modulated sound in the headset for 14 seconds.

 (14)
 Disconnect the headset from the voice-recorder control panel.

 (15)
 Remove electrical power if it is not necessary (AMM 24-22-00).

 S 865-133
 S 865-074
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757 MAINTENANCE MANUAL
 VOICE RECORDER - REMOVAL/INSTALLATION
_____________________________________
 1.  General_______
 A.  This procedure contains two tasks. The first task is to remove the voice recorder. The second task is to install the voice recorder.
 TASK 23-71-01-004-001
 2.  Remove the Voice Recorder Unit______________________________
 A.  General
 (1)  The M201 voice recorder is in the E7 equipment rack in the aft passenger cabin ceiling, forward of the aft galley. Electrical connections are made through a single connector at the rear of the unit.
 B.  References
 (1)  
20-10-01/401, E/E Rack Mounted Components

 (2)  
25-22-02/401, Lowered Ceiling Panels

 C.  Access
 (1)  Location Zone 253/254 Area above passenger cabin ceiling - section 46
 D.  Procedure
 S 864-013
 (1)  Open this circuit breaker on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tag:
 (a)  11H33, VOICE RECORDER
 S 014-014
 (2)  
Do this task: "Remove the Lowered Ceiling Panels", (AMM 25-22-02/401), to get access to the voice recorder above the No. 1 aft ceiling panel.

 (3)  
Remove the voice recorder unit (AMM 20-10-01).

 S 024-021

 (4)  
Remove the Underwater Locator Beacon (ULB) and install it on the new voice recorder if it does not come with a ULB already installed.

 S 024-015
 TASK 23-71-01-404-002
 3.  Install Voice Recorder Unit___________________________
 A.  References
 (1)  20-10-01/401, E/E Rack Mounted Components
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MAINTENANCE MANUAL

 (2)  25-22-02/401, Lowered Ceiling Panels
 B. Access
 (1)  Location Zones 253/254 Area above passenger cabin ceiling - section 46
 C. Procedure
 S 424-022
 (1)  Install the ULB if the new voice recorder does not have a ULB installed.
 NOTE: An underwater locator beacon (ULB) must be installed on the
____ voice recorder when the voice recorder is installed on the airplane.
 S 424-018
 (2)  
Install the voice recorder unit (AMM 20-10-01).

 S 414-019

 (3)  
Do this task: "Install the Lowered Ceiling Panels", (AMM 25-22-02/401), to install the No. 1 aft ceiling panel.

 S 864-020

 (4)  
Remove DO-NOT-CLOSE tag and close this circuit breaker on the overhead circuit breaker panel, P11:

 (a)  11H33, VOICE RECORDER
 D. Voice recorder installation test.
 S 864-003
 (1)  
　
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