Operational Test of the Loudspeaker through the MCDU

TASK 23-73-00-710-036-A
Operational Test of the Loudspeaker through the MCDU

ZONE: 200

1. Reason for the Job
To verify the loudspeaker operation in the cabin and all lavatories.
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

B. Referenced Information

REFERENCE	DESIGNATION
TASK 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-32-00-860-003-A	Procedure to Get Access to the SYSTEM REPORT/TEST/COM Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 23-73-00-860-167-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).
(3) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(4) Get Access to the SYSTEM REPORT/TEST/COM page of the Centralized Fault Display System (CFDS)
(Ref. AMM TASK 31-32-00-860-003).
(5) Make sure that a minimum of one cabin door is open.

Subtask 23-73-00-865-187-A

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
49VU	AIR COND/CAB/PRESS/CTL1	1HL	D09
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	Q40
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	R41
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R40
** ON A/C ALL
122VU	AIR COND/CAB PRESS/CTL/2	2HL	Y22

4. Procedure
Subtask 23-73-00-710-299-A ** ON A/C NOT FOR ALL

A. Do this test

ACTION	RESULT
1.On the CFDS-MCDU:	On the CFDS-MCDU:
push the CIDS1 related line select key.	the CIDS1 main menu page shows.
push the OP TESTS line select key.	the CIDS1 OP TESTS page shows.
push the LOUDSPEAKERS ACTIVATION line select key.	the CIDS1 OP TEST OF LOUDSPEAKER page shows.
	the message LOUDSPEAKERS ACTIVATED shows.
	In the cabin and in all lavatories: you hear a test tone.
2.On the CFDS-MCDU:	In the cabin and in all lavatories:
push the RETURN line select key until the SYSTEM REPORT/TEST page shows.	the test tone stops.
3.On the CFDS-MCDU:	On the CFDS-MCDU:
push the MCDU MENU pushbutton.	the MCDU MENU page shows.

Subtask 23-73-00-710-299-B ** ON A/C NOT FOR ALL

A. Do this test

ACTION	RESULT
1.On the CFDS-MCDU:	On the CFDS-MCDU:
push the CIDS1 related line select key.	the CIDS1 main menu page shows.
push the TEST related line select key.	the first CIDS1 TEST page shows.
push the NEXT PAGE function key.	the second CIDS1 TEST page shows.
push the LOUDSPEAKERS related line select key.	the message LOUDSPEAKER ON/ LOUDSPEAKER OFF shows.
	In the cabin and in all lavatories:
push the LOUDSPEAKER ON related line select key.	you hear a test tone.
2.On the CFDS-MCDU:	In the cabin and in all lavatories:
push the RETURN line select key until the SYSTEM REPORT/TEST page shows.	the test tone stops.
3.On the CFDS-MCDU:	On the CFDS-MCDU:
push the MCDU MENU pushbutton.	the MCDU MENU page shows.

5. Close-up
Subtask 23-73-00-860-168-A

A. Put the aircraft back to its initial configuration.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002)
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)

[Rev.10 from 2021] 2026.03.31 23:17:30 UTC