(e)  
The MISCELLANEOUS selection is not necessary for normal maintenance.

 (f)  
The IDU DIM/TEST selection lets you change the brightness of the integrated display units. The DISPLAY TEST selection starts a test of the integrated display units.

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A
747-400 FAULT ISOLATION/MAINT MANUAL
ACMS

* SEE THE WDM EQUIPMENT LIST
ACMS - Component Index
Figure 101

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K00810
A
747-400 FAULT ISOLATION/MAINT MANUAL
CENTER CONTROL DISPLAY UNIT, M7441 (REF)
SEE C
P415 PANEL
DATA MANAGEMENT UNIT, B584
SEE A
QUICK ACCESS RECORDER, B488
SEE B
E1-3 E1-5
LINE SELECT KEYS
INIT DEP BRTRTE VNAVREF ARR
FUNCTION FIX LEGS HOLD
EXECPROG
AND MODE KEY
NAVMENU RAD ABCDE
PREV NEXT D
PAGEPAGE FGHIJ MS SP GL
123KLMNO F O
A F
SI 456PQRSTL T
789UVWXY
. 0 +/-Z SPDEL / CLR
CONTROL DISPLAY UNIT (CDU), M7441
DATA MANAGEMENT UNIT, QUICK ACCESS RECORDER, B584 B488
C AB
ACMS - Component Location
Figure 102

E47030
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747-400 MAINTENANCE MANUAL
 AIRPLANE CONDITION MONITORING SYSTEM - ADJUSTMENT/TEST
______________________________________________________
 1.  General_______
 A.  Three tasks are in this procedure. The first task is an operational test of the Airplane Condition Monitoring System (ACMS). The second task is the CMCS ground test of the ACMS. The third task is a system test of the ACMS.
 TASK 31-35-00-715-001
 2.  Operational Test - Airplane Condition Monitoring System_______________________________________________________
 A.  References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 31-35-00/501, Airplane Condition Monitoring System

 (3)  
AMM 31-35-01/401, ACMS Data Management Unit

 (4)  
AMM 31-35-02/401, Quick Access Recorder

 (5)  
AMM 31-35-10/201, ACMS Data Management Unit Software Installation

 (6)  
AMM 34-61-02/401, Control Display Unit

 B.  Access
 (1)  Location Zone
 117 Electrical/Electronic Compartment, Left
 221 Flight Compartment, Left
 222 Flight Compartment, Right

 C.  Preconditions
 S 865-170
 (1)  These conditions are necessary for this task:
 (a)  
Electrical power on (AMM 24-22-00/201).

 (b)  
DMU installed (AMM 31-35-01/401).

 (c)  
QAR installed (AMM 31-35-02/401).

 (d)  
CDU installed (AMM 34-61-02/401).

 D.  ACMS Operational Test
 S 865-215
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 715-177

 (2)  
Do a test of DMU operation:

 (a)  Push the MENU key on the center CDU. 1) Make sure that the <ACMS prompt shows on the CDU menu.
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