DOC AIRBUS | AMM A320FInstallation of the Cockpit Voice Recorder (CVR) Microphone Amplifier
TASK 23-71-14-400-001-A
Installation of the Cockpit Voice Recorder (CVR) Microphone Amplifier
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 23-71-14-865-051-A ** ON A/C NOT FOR ALL
Subtask 23-71-14-420-050-A ** ON A/C NOT FOR ALL
Subtask 23-71-14-860-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:12:19 UTC
Installation of the Cockpit Voice Recorder (CVR) Microphone Amplifier
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 212 | COCKPIT |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 23-71-00-710-001-A | Operational Check of CVR and CVR-Channel Recording |
CVR Microphone AmplifierSubtask 23-71-14-865-051-A ** ON A/C NOT FOR ALL
A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CVR/SPLY | 2RK | E14 |
| 49VU | COM/CVR/CTL | 4RK | E13 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CVR/SPLY | 23RK | E14 |
| 49VU | COM/CVR/CTL | 26RK | E13 |
Subtask 23-71-14-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the CVR Microphone Amplifier
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the CVR microphone amplifier (12) in position on its support (8).
(4) Install the washers (11) and the screws (10). Tighten the screws.
(5) Remove the blanking caps from the connectors (7) and the receptacles (9).
(6) Make sure that the connectors (7) and the receptacles (9) are in the correct condition.
(7) Connect the connectors (7) to the receptacles (9).
(8) Put the dome light cover (2) in position. Install the screws (1) and tighten the screws (1) and the fasteners (3).
(9) Put the lining panel (5) in position. Install the screws (4) and tighten the screws (4) and the fasteners (6).
Subtask 23-71-14-865-052-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the CVR microphone amplifier (12) in position on its support (8).
(4) Install the washers (11) and the screws (10). Tighten the screws.
(5) Remove the blanking caps from the connectors (7) and the receptacles (9).
(6) Make sure that the connectors (7) and the receptacles (9) are in the correct condition.
(7) Connect the connectors (7) to the receptacles (9).
(8) Put the dome light cover (2) in position. Install the screws (1) and tighten the screws (1) and the fasteners (3).
(9) Put the lining panel (5) in position. Install the screws (4) and tighten the screws (4) and the fasteners (6).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 23-71-14-710-051-A ** ON A/C NOT FOR ALL 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CVR/SPLY | 2RK | E14 |
| 49VU | COM/CVR/CTL | 4RK | E13 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CVR/SPLY | 23RK | E14 |
| 49VU | COM/CVR/CTL | 26RK | E13 |
Subtask 23-71-14-860-050-A ** ON A/C NOT FOR ALL
A. Make sure that the work area is clean and clear of tools and other items.