A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002)
(2)
Energize the Cabin Intercommunication Data System (CIDS) (Ref. TASK 23-73-00-861-001).
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B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU COM/AUDIO/FLT/INTPH 9RN G08 49VU COM/AUDIO/ACP/F/O 5RN G07 49VU COM/AUDIO/ACP/CAPT 4RN G06
121VU COM NAV/SELCAL 8RN M04 R 121VU COM NAV/ACP/THIRD/OCCPNT 6RN M02
4. Procedure
_________
Subtask 23-44-00-860-053
A. Operation of the Service Interphone System
(1)
Connect the 600 ohms boomsets to the related connectors.
(2)
In the cockpit on the overhead panel 50VU push the SVCE INT OVRD pushbutton switch 15RJ.
NOTE : It is only necessary to push the SVCE INT OVRD pushbutton
____ switch when the nose landing gear is not compressed (e.g.: nose landing gear is in flight simulation or the A/C is jacked).
(3)
Put the INT/RAD switches of all Audio Control Panels (ACPs) in the center position.
(4)
Push the CAB pushbutton switch of the related ACP (integral light on).
(5)
Push to release and turn the CAB knob of the related ACP fully clockwise.
(6)
The service interphone system operates. NOTE : On the related ACP put and hold the INT/RAD switch in the RAD
____
position while you speak.
5. Close-up
________
Subtask 23-44-00-860-054
A. Put the aircraft back to its initial configuration.
(1)
On the ACP push the CAB knob.
(2)
In the cockpit push the SVCE INT OVRD pushbutton switch to off.
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(3)
Disconnect the boomsets.
(4)
De-energize the CIDS-System (Ref. TASK 23-73-00-862-001).
(5)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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CABIN AND SERVICE INTERPHONE - ADJUSTMENT/TEST
______________________________________________ TASK 23-44-00-700-001 Operational Test of the Service Interphone WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______
YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
WARNING : YOU MUST BE IN THE ENTRY CORRIDOR (SAFETY AREA) TO DO THIS PROCEDURE.
_______ THIS IS TO PREVENT ACCIDENTS CAUSED BY THE BLAST OR SUCTION FROM THE ENGINES. FOR SAFETY, YOU MUST NOT USE THE MOBILE EQUIPMENT.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific two 600 ohms boomsets
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
23-73-00-861-001 Energize the Cabin Intercommunication Data System
(CIDS) R 23-73-00-862-001 De-energize the Cabin Intercommunication Data System R (CIDS)
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