Removal of the Audio Module

TASK 23-73-12-000-004-A
Removal of the Audio Module

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

REFERENCE	DESIGNATION
TASK 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 31-32-00-860-003-A	Procedure to Get Access to the SYSTEM REPORT/TEST/COM Page
Audio Module

3. Job Set-up
Subtask 23-73-12-861-056-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 23-73-12-970-053-A ** ON A/C NOT FOR ALL

B. Trouble Shooting Data
(1) Make sure that the Cabin Intercommunication Data System (CIDS) is energized (Ref. AMM TASK 23-73-00-861-001)
(2) If available, you can print the Trouble Shooting Data (TSD) as follows:

get access to the SYSTEM REPORT/TEST COM page (Ref. AMM TASK 31-32-00-860-003)
on this page, push the line key adjacent to the CIDS1 (2) indication.
on the CIDS1 (2) page, push the line key adjacent to the TROUBLE SHOOTING DATA indication to get the TROUBLE SHOOTING DATA page.
print the Trouble Shooting Data page.

Subtask 23-73-12-865-059-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	COM /CIDS/FWD ATTND/PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM /CIDS/FLT ATTND/PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM/FAP1/NORM	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/FWD ATTND/PNL	170RH	Q14

4. Procedure
Subtask 23-73-12-020-054-A ** ON A/C NOT FOR ALL

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).

[Rev.10 from 2021] 2026.04.02 06:12:29 UTC