DOC AIRBUS | TSM A320FLoss of the Audio Signal from the ADF Receiver 2
TASK 34-53-00-810-818-A
Loss of the Audio Signal from the ADF Receiver 2
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-53-00-710-052-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-53-00-810-069-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:33:27 UTC
Loss of the Audio Signal from the ADF Receiver 2
1. Possible Causes
- RECEIVER-ADF, 2 [2RP2]
- AMU [1RN]
wiring of the ADF 2 AUDIO bus from the AMU (1RN) to the ADF receiver 2 (2RP2)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 23-51-34-000-001 | Removal of the Audio Management Unit (AMU) (1RN) |
| AMM 23-51-34-400-001 | Installation of the Audio Management Unit (AMU) (1RN) |
| AMM 34-53-00-710-002 | Operational Test of the ADF |
| ASM 345301 | |
| AMM 34-53-31-000-002 | Removal of the ADF Receiver |
| AMM 34-53-31-400-002 | Installation of the ADF Receiver |
Subtask 34-53-00-710-052-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-53-00-810-069-A ** ON A/C NOT FOR ALL
A. If there is no audio signal on the loud speakers during the test, when the ADF 2 data are shown on the ND:
Subtask 34-53-00-710-053-A ** ON A/C NOT FOR ALL - replace the RECEIVER-ADF, 2 [2RP2] AMM 34-53-31-000-002 and AMM 34-53-31-400-002.
- replace the AMU [1RN] AMM 23-51-34-000-001 and AMM 23-51-34-400-001.
- do a check and repair the
wiring of the ADF 2 AUDIO bus from the AMU (1RN) to the ADF receiver 2 (2RP2) ASM 345301.
B. Do the test given in Para. 3.