(a)  
Remove the dust caps from the electrical connectors.

 (b)  
Examine the printer's electrical connector for loose, dirty, bent, or broken pins.

 (c)  
Connect the electrical connector to the printer.

 (d)  
Carefully put the printer into the panel.

 (e)  
Lock the fasteners on the front of the printer.

 S 864-030
 (4)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P415 Power Distribution Center - Right Panel 1) 415L37 PRINTER

 (b)  
P6 Main Power Distribution Panel
 1) 6E22 FLT DK LIGHTS PANEL CONT STAND

 (5)  
Supply electrical power (AMM 24-22-00/201).

 S 864-031
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 ALL  ú ú 01 Page 403 ú Feb 10/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 424-041
 (6)  
Install a roll of paper in the printer (AMM 45-10-02/301).

 S 744-042

 (7)  
Use a CDU to do the CMCS ground test of the printer:

 (a)  
Make these selections on the CDU:
 1) <GROUND TESTS (from the CMC MENU)
 2) <45 CENTRAL MAINTENANCE
 3) <PRINTER

 (b)  
Make sure a test pattern comes out of the printer.

 (c)  
Make sure that the correct software part numbers show on the printout.

 NOTE: You must know the correct software part numbers for the
____ printer. For the printer to be an approved installation, software with the correct part numbers must be installed.
 1)  If the part number is not correct, replace the printer with one that has the correct software.
 (d)  When the test is completed, make sure that PASS shows adjacent to <PRINTER.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 REMOTE CONTROL DISPLAY UNIT - SERVICING
_______________________________________
 1.  General_______
 A.  This subject has two tasks. The first task is to clean the inlet screen for the cooling air on the remote control display unit (RCDU). The second task is to clean the RCDU display screen.
 B.  The RCDU is installed in the main equipment center at STA 402, WL 188, LBL 57.
 TASK 45-10-03-143-027
 2.  Remote Control Display Unit - Cooling Air Inlet Screen Cleaning_______________________________________________________________
 A.  General
 (1)  The inlet screen for the cooling air is installed on the rear of the remote control display unit (RCDU).
 B.  Standard Tools and Equipment
 (1)  Vacuum Source
 C.  References
 (1)  45-10-03/401, Remote Control Display Unit
 D.  Access
 (1)  Location Zones 117 Electrical and Electronics Compartment, LH
 E.  Procedure
 S 023-028
 (1)
Remove the remote control display unit (Ref 45-10-03/401).

 S 863-029

 (2)  
Put the RCDU on a stable surface.

 S 143-030

 (3)
Remove all the dirt from the inlet screen with a vacuum source.

 (4)
Installl the remote control display unit (Ref 45-10-03/401).

 S 423-031
 TASK 45-10-03-113-032
 3.  Remote Control Display Unit - Display Surface Cleaning______________________________________________________
 A.  Equipment
 (1)  
Brush - Soft bristle (commercially available)

 (2)  
Cloth - Clean, lint-free, cotton

 B.  Consumable Materials
 (1)  B01057 Cleaner, Glass, standard household
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