(b)
Examine the RCDU's electrical connector for loose, dirty, bent, or broken pins.
(c)
Put the RCDU carefully into its mounting bracket.
(d)
Lock the fasteners on the front of the RCDU.
(e)
Connect the electrical connector to the RCDU.
S 864-040
(3) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P415 Power Distribution Center - Right
1) 415H30 RCDU
2) 415K32 RCDU PANEL LIGHTING
S 864-042
(4)
Supply electrical power (Ref 24-22-00/201).
S 714-043
(5)
Do a test of the RCDU:
(a)
Push the MENU key on the RCDU.
(b)
Make sure the RCDU shows the MENU.
NOTE: It can be necessary to turn the BRT control on the RCDU
____
clockwise to see the MENU.
S 864-044
(6) Remove electrical power if it is not necessary (Ref 24-22-00/201).
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A
747-400 MAINTENANCE MANUAL
CENTRAL MAINTENANCE COMPUTER - SOFTWARE INSTALLATION
____________________________________________________
1. General_______
A. This subject contains two tasks. The first task is the CMC software installation. The second task is the installation of the CMCS airline data base. The data loader is used for both tasks.
B. The software installation and the data base installation are divided into separate procedures for the right CMC and the left CMC. The software or the data base can be installed in one or both CMCs.
C. The CMC software is installed from two 3-1/2 inch diskettes. The CMCS airline data base is installed from one 3-1/2 inch diskette.
D. To read about software installation times and data loaders, do this task: On-Airplane Software Installation (AMM 20-15-11/201).
TASK 45-10-10-472-075
2. CMC Software Installation_________________________
A. General
(1)
The software installation task is divided into separate procedures for the right CMC and the left CMC so that software can be installed in one or both CMCs.
(2)
The CMC software is installed from on two 3-1/2 inch diskettes.
B. References
(1)
24-22-00/201, Manual Control
(2)
45-10-01/201, Central Maintenance Computer-Option Code Installation
C. Access
(1) Location Zones
221 Control Cabin, LH
222 Control Cabin, RH
D. Prepare for Software Installation
S 862-197
(1)
Supply electrical power (AMM 24-22-00/201).
S 862-198
(2)
Make sure the captain's clock and the first officer's clock are set to the correct date and time (GMT |12 seconds).
E. Right CMC Software Installation
S 862-134
(1) Set the selector switch for the data loader on the P11 first observer's panel to NORMAL.
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A
747-400
MAINTENANCE MANUAL
S 862-137
(2) Open this circuit breaker and attach a DO-NOT-CLOSE tag:
(a) P414 Power Distribution Panel - Left
1) 414L8 CMC LEFT
S 862-138
(3)
Set the selector switch for the data loader to CMC-R.
S 862-234
(4)
Do these steps at the data loader control panel:
(a) 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 飛機維護(hù)手冊 中央維護(hù)計算機系統(tǒng)(56)
