757 AMM 飞机维护手册 仪表 CHAPTER 31 - INSTRUMENTS 1(104)

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 copy of the flight data.
 NOTE: After each file is erased, the HHDLU makes sure
____ the HHDLU has sufficient memory space. If there is sufficient memory, the HHDLU will start to make a copy.
 7) Make sure the HHDLU display shows REC BLKS and XFER BLKS.
 NOTE: REC BLKS is the number of blocks the HHDLU will
____ move to the removable media. XFER BLKS is the number of blocks the HHDLU will move from the FDR. The REC BLKS and XFER BLKS fields will change during the copy procedure.
 (b)  After the copy procedure is completed, push a key to show the main menu.
 G. Put the Airplane to Its Usual Condition
 S 862-267
 (1)  On the HHDLU, push the red power switch to remove the power.
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 (2)  S 022-266Remove the media from the HHDLU.
 (3)  S 862-229At the P61 panel, set the FRCP to the NORM position.
 (4)  S 862-230Disconnect the interface cable from the FDR.
 (5)  S 862-231Put the cover on the FDR ATE connector.
 (6)  S 862-232Remove electrical power if it is not necessary (AMM 24-22-00/201).

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 FLIGHT DATA RECORDER - REMOVAL/INSTALLATION
___________________________________________
 1. General
_______
 A. This procedure has these tasks:
 (1)  
A removal of the flight data recorder (FDR).

 (2)  
An installation of the FDR.

 B. The FDR is installed in the E7 equipment rack.
 TASK 31-31-01-004-001
 2. Flight Data Recorder (FDR) Removal (Fig. 401)
__________________________________
 A. References
 (1)  
AMM 20-10-01/401, E/E Rack-Mounted Components

 (2)  
AMM 20-41-01/201, Electrostatic Sensitive Devices

 (3)  
AMM 25-22-02/401, Lowered Ceiling Panels

 B. Access
 (1)  Location Zone 253 Area above passenger cabin ceiling (left)
 C. Procedure
 S 864-003
 (1) Open these circuit breakers and attach the DO-NOT-CLOSE tags:
 (a)  On the overhead equipment panel, P11: 1) 11J7, FLIGHT RECORDER AC 2) 11J8, FLIGHT RECORDER DC
 S 864-004
 (2)  To get access to the FDR, lower the ceiling panel No. 1 above the aft galley (AMM 25-22-02/401).
 S 864-059
 CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE FDR.
_______ IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE FDR.
 (3)  To remove the FDR, do this task: E/E Box Removal
　
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