S 862-076

 (2)  
Make sure the captain's clock and the first officer's clock are set to the correct date and time (GMT |12 seconds).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 45-10-01
 ALL  ú ú 01 Page 201 ú Feb 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 862-075
 (3)  Show the CONFIGURATION DATA page on a CDU:
 NOTE: The CONFIGURATION DATA page will show automatically if you
____ replaced the two CMCs or if you installed software in the two CMCs immediately before this task.
 (a)  
Push the MENU key on a CDU.

 (b)  
Push the line select key (LSK) that is adjacent to <CMC.

 (c)  
If <RETURN shows, push the LSK that is adjacent to <RETURN until you see the CMC MENU.

 (d)  
Push the NEXT PAGE key to show page 2 of the CMC MENU.

 (e)  
Push the LSK that is adjacent to <OTHER FUNCTIONS.

 (f)  
Push the LSK that is adjacent to <CONFIGURATION.

 (g)  
Push the LSK that is adjacent to <45 CENTRAL MAINTENANCE.

 (h)  
Push the LSK adjacent to <CMC-L.

 NOTE: The CONFIGURATION DATA page will show after
____
 approximately 10 seconds.

 E. Option Code Installation
 S 862-079
 (1)  Use this option code:
 (a)  AF21CA4460139D (OC-A)
 00F02A248A3C06 (OC-B)

 S 472-067
 (2)  Install the CMC option code:
 (a)  If the CDU scratchpad is not clear, push and hold the CLR key until the scratchpad is clear.
 NOTE: The CDU scratchpad is the area at the bottom of the CDU
____
 display.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 45-10-01
 ALL  ú ú 35 Page 202 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (b)  
Use the CDU keyboard to put in the first 14 hexadecimal numbers of the option code (OC-A).

 (c)  
Make sure that the first 14 numbers of the option code (OC-A) are shown in the scratchpad.

 (d)  
Push the LSK on the left side of the OC-A prompt.

 (e)  
Make sure the first 14 numbers of the option code are shown adjacent to the OC-A prompt.

 (f)  
When ENTER OC-B is shown in the scratchpad, push and hold the CLR key until the scratchpad is clear.

 (g)  
Use the CDU keyboard to put in the second 14 hexadecimal numbers of the option code (OC-B).

 (h)  
Make sure the second 14 numbers of the option code (OC-B) are shown in the scratchpad.

 (i)  
Push the LSK on the left side of the OC-B prompt.

 (j)  
Make sure the second 14 numbers of the option code (OC-B) are shown adjacent to the OC-B prompt.

 F. Put the Airplane in Its Usual Condition
 S 862-069
 (1) Remove electrical power if it is not necessary (Ref 24-22-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 45-10-01
 ALL  ú ú 21 Page 203 ú Jun 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 CENTRAL MAINTENANCE COMPUTER - REMOVAL/INSTALLATION
___________________________________________________
 1.  General_______
 A.  This subject contains two tasks. The first task is the removal of a central maintenance computer (CMC). The second task is the installation of a CMC. Each installation task includes steps to do a check of these part numbers: CMC software, CMCS airline data base, and IDS software. A CDU is necessary to do the part number checks.
 B.  If CMC software was not installed in the shop, or if the CMC software part number is incorrect, you must install software in the replacement CMC. The data loader is necessary to install software.
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 中央維護(hù)計(jì)算機(jī)系統(tǒng)(49)