(a)  
Turn the six panel fasteners, that attach the module to the P5 panel, counterclockwise 90 degrees.

 (b)  
Disconnect the electrical connectors from the module. (Refer to the table below for the equipment numbers.)

 ~......................... | ELECTRICAL | MODULE | | CONNECTOR | RECEPTACLE | ........................... | DM7307B | J2 | | DM7307C | J3 | | DM7307D | J4 | | DM7307E | J5 | | DM7307F | J6 | | DM7307G | J7 | | DM7307H | J8 | | DM7307J | J9 | 2............…............1

 (c)  
Remove the module from the P5 panel.

 (d)  
Install protective covers on all electrical connectors.

 TASK 24-22-01-404-009
 3.  Electrical System Control Module Installation (Fig. 401)_____________________________________________
 A. References
 (1)  
AIPC 24-22-55, Fig. 1

 (2)  
WDM 24-11-11 thru WDM 24-11-14, WDM 24-22-11 thru WDM 24-22-41, WDM 24-22-72 thru WDM 24-22-74, WDM 24-27-21 thru WDM 24-27-31, WDM 24-31-11 thru WDM 24-31-21, WDM 24-33-21, WDM 24-41-12, WDM 24-41-22

 (3)  
SSM 24-11-01 thru SSM 24-11-04, SSM 24-22-01 thru SSM 24-22-05, SSM 24-31-01 thru SSM 24-31-02, SSM 24-33-01 thru SSM 24-33-02, SSM 24-34-02 thru SSM 24-34-03, SSM 24-41-01 thru SSM 24-41-03

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 24-22-01
 ALL  ú ú 04 Page 403 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 B. Access
 (1)  
Location Zone
 221 Control Cabin, LH

 (2)  
Access Panel
 P5 Overhead Panel

 C. Procedure
 S 424-018
 (1)  
Install the module.

 (a)  
Remove all protective covers from the electrical connectors.

 (b)  
Connect the eight electrical connectors to the eight receptacles on the module. (Refer to the table below for the equipment numbers.)

 ~......................... | ELECTRICAL | MODULE | | CONNECTOR | RECEPTACLE | ........................... | DM7307B | J2 | | DM7307C | J3 | | DM7307D | J4 | | DM7307E | J5 | | DM7307F | J6 | | DM7307G | J7 | | DM7307H | J8 | | DM7307J | J9 | 2............…............1

 (c)  
Put the module in its position in the P5 panel.

 (d)  
Turn the six panel fasteners, that attach the module to the P5 panel, clockwise 90 degrees.

 S 864-014
 (2)  
Make sure these switches on the module are set to OFF or to the out position.

 (a)  
STANDBY POWER

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 24-22-01
 ALL  ú ú 03 Page 404 ú Oct 10/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (b)  
L-UTILITY-R

 (c)  
APU

 (d)  
BATTERY

 (e)  
BUS TIE

 (f)  
GEN CONT

 (g)  
DRIVE DISC

 S 434-015
 (3)  Connect the main battery connector (DM7423B) and the APU battery connector (DM7432B) to the batteries.
 TASK 24-22-01-714-020
 4. Electrical System Control Module Operational Test
_________________________________________________
 A. References
 (1)  
AMM 24-11-00/501, Generator Drive System

 (2)  
AMM 24-22-00/201, Manual Control

 (3)  
AMM 45-10-00/201, CMCS Maintenance Practices

 (4)  
AMM 49-11-00/201, Auxiliary Power Unit

 B.
Access

 (1)  
Location Zone
 221 Control Cabin, LH
 118 Electrical and Electronics Compartment

 (2)  
Access Panel
 P118A Electrical Power Receptacle Door

 C.
Procedure

 S 014-021
 WARNING: MAKE SURE THAT THE ELECTRICAL SYSTEM IS CLEAR OF OTHER PERSONS
　
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