747-400 AMM 飞机维护手册 指示/记录系统 2(126)

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 TABLE 201
 [*1]  "AUTO SANPSHOT" and "MANUAL SNAPSHOT" prompts on the "EICAS PAGE CONTROL" menu are not always updated real time. You may need to exit and then re-enter the menu to get the prompts.
 [*2]  A "RECORD ALL" feature will be added to the CMCS software. This feature permit the operator to take a snapshot of all the maintenance pages from a CDU.
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A
747-400
MAINTENANCE MANUAL

 B.  References
 (1)  AMM 24-22-00/201, Manual Control
 C.  Access
 (1)  Location Zones
 221 Control Cabin, LH
 222 Control Cabin, RH

 D.  Procedure
 S 862-024
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 862-033

 (2)  
Show a snapshot of a maintenance page:

 (a)  
Push the MENU key on the CDU to show the MENU.

 (b)  
Push the LSK adjacent to the <CMC prompt to show the CMC menu.

 

 NOTE: If the CMC menu is not shown, push the LSK adjacent to
____ the <RETURN prompt if it is necessary until you see the menu.
 (c)  
Push the LSK adjacent to the <EICAS MAINT PAGES.

 (d)  
Push the NEXT PAGE key if it is necessary until the prompt for the applicable maintenance page shows.

 (e)  
Push the LSK adjacent to the applicable prompt. 1) Make sure the EICAS PAGE CONTROL menu shows.

 (f)  
Push the LSK adjacent to the prompt for the applicable snapshot (<MANUAL SNAPSHOTS or <AUTO SNAPSHOTS).

 NOTE: If the <MANUAL SNAPSHOTS or <AUTO SNAPSHOTS prompts do
____ not show, no snapshot data is available to show.
 1)  Make sure the CDU shows the snapshot menu page for the applicable snapshot.
 (g)  Push the LSK adjacent to the prompt for the applicable snapshot. 1) Make sure the auxiliary EICAS display shows a snapshot of
 the applicable maintenance page.
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747-400 MAINTENANCE MANUAL
 S 862-025
 (3)  Remove electrical power if it is not necessary (AMM 24-22-00/201).
 TASK 31-61-00-802-040
 7. Snapshot Erasure
________________
 A. General
 (1)  The snapshot erase function permits the user to erase all snapshots or system snapshots form the EIU memory.
 B. References
 (1)  AMM 24-22-00/201, Manual Control
 C. Access
 (1)  Location Zones
 221 Control Cabin, LH
 222 Control Cabin, RH

 D. Procedure
 S 862-026
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 862-034

 (2)  
Prepare the CDU to erase the snapshots:

 (a)  
Push the MENU key on the CDU to show the MENU.

 (b)  
Push the LSK adjacent to the <CMC prompt to show the CMC menu.

 

 NOTE: If the CMC menu is not shown, push the LSK adjacent to
____ the <RETURN prompt if it is necessary until you see the menu.
 (c) Push the LSK adjacent to the <EICAS MAINT PAGES.
 E. Erase all snapshots.
 S 862-035
 (1)  Push the LSK adjacent to the <ERASE ALL prompt to erase all of the snapshots.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 07 Page 249 ú Feb 15/99
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A
747-400 MAINTENANCE MANUAL
 F. Erase system snapshots.
　
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