(2)
Access Panel
119BL Main Equipment Center
C. Prepare for the Removal
S 864-002
(1) Open these circuit breakers on the right miscellaneous electrical equipment panel, P37, and attach DO-NOT-CLOSE tags:
(a)
37A6, VIDEO SYSTEM (MAIN BUS) MONITOR FWD
(b)
37A7, VIDEO SYSTEM (MAIN BUS) MONITOR AFT
(c)
37A8, VIDEO SYSTEM (MAIN BUS) SYSTEM AC
(d)
37C6, VIDEO SYSTEM (UTIL BUS) MONITOR FWD
(e)
37C7, VIDEO SYSTEM (UTIL BUS) MONITOR AFT
(f)
37C8, VIDEO SYSTEM (UTIL BUS) SYSTEM AC
D. Zone Interface Box Removal
S 014-003
(1)
Remove the sculptured ceiling panels near the zone interface box for access (AMM 25-22-01/401).
(2)
Disconnect the electrical connectors from the ZIB.
S 024-005
(3)
Remove the four screws and washers that attach the ZIB, and keep them for the installation.
(4)
Remove the ZIB from the monitor support structure.
S 024-004
S 024-006
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TASK 23-32-12-424-007
3. Zone Interface Box Installation_______________________________
A. References
(1)
AMM 23-32-00/501, Passenger Entertainment (Video) System
(2)
AMM 25-22-01/401, Sculptured Ceiling Panels
B. Access
(1)
Location Zones 120 Main Equipment Center (RH Side) 200 Upper Half of Fuselage
(2)
Access Panel
119BL Main Equipment Center
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C. Zone Interface Box Installation
S 424-008
(1)
Put the ZIB in its usual position on the monitor support structure.
S 424-009
(2)
Install the four screws and washers to attach the ZIB.
S 424-010
(3)
Connect the electrical connectors to the ZIB.
S 414-011
(4)
Install the sculptured ceiling panel (AMM 25-22-01/401).
D. Zone Interface Box Installation Test
S 864-012
(1) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the right miscellaneous electrical equipment panel, P37:
(a)
37A6, VIDEO SYSTEM (MAIN BUS) MONITOR FWD
(b)
37A7, VIDEO SYSTEM (MAIN BUS) MONITOR AFT
(c)
37A8, VIDEO SYSTEM (MAIN BUS) SYSTEM AC
(d)
37C6, VIDEO SYSTEM (UTIL BUS) MONITOR FWD
(e)
37C7, VIDEO SYSTEM (UTIL BUS) MONITOR AFT
(f)
37C8, VIDEO SYSTEM (UTIL BUS) SYSTEM AC
S 714-013
(2) Do an operational test of the video system (AMM 23-32-00/501).
(a) Make sure video shows on the monitors connected to the installed ZIB.
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