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4. Procedure
_________
(Ref. Fig. 403/TASK 23-73-12-991-004)
Subtask 23-73-12-020-054
A. Removal of the audio module
(1)
Pull down the locking rod (1) and carefully open the Fwd Attendant Panel (FAP) door (2).
(2)
Loosen the quick release fasteners (3) from the audio module (4).
(3)
Carefully pull the audio module (4) until you can see the electrical connection (5).
(4)
Disconnect the electrical connection (5).
(5)
Remove the audio module (4).
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Audio Module
Figure 403/TASK 23-73-12-991-004
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TASK 23-73-12-400-004 Installation of the Audio Module
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
23-73-00-740-003 BITE Test of the Cabin Intercommunication Data System (CIDS) through the PTP 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 23-73-12-991-004 Fig. 403
3. Job Set-up
__________ Subtask 23-73-12-861-057
A. Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002)
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Subtask 23-73-12-865-060
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 001-049, 051-061, 101-105, 201-203,
R 121VU COM NAV/CIDS/FWD ATTND/PNL **ON A/C 062-099, 204-299, 170RH M14
R R 121VU COM NAV/CIDS/FWD ATTND/PNL **ON A/C 151-199, 170RH Q14
R R 121VU COM /CIDS/FLT ATTND/PNL **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 170RH Q14
4. Procedure_________
(Ref. Fig. 403/TASK 23-73-12-991-004) Subtask 23-73-12-420-054
A. Installation of the audio module
(1) Clean the component interface and/or the adjacent area. (2) Do an inspection of the component interface and/or the adjacent area. (3) Connect the electrical connection (5). (4) Carefully install the audio module (4). (5) Tighten the quick release fasteners (3). (6) Make sure that the work area is clean and clear of tool(s) and other items.
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(7) Carefully close the Fwd Attendant Panel (FAP) door (2). Make sure that you hear a click when the door (2) locks in position.
Subtask 23-73-12-865-061
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 170RH.
Subtask 23-73-12-740-053
C. Do the BITE test of the Cabin Inntercommunication Data system (CIDS) (Ref. TASK 23-73-00-740-003).
5. Close-up
________ Subtask 23-73-12-862-053
A. De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
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TASK 23-73-12-000-005 Removal of the Miscellaneous Module
1.
Reason for the Job
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