DOC AIRBUS | TSM A320FPISA data transfer failure
TASK 23-73-00-810-970-A
PISA data transfer failure
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 23-73-00-710-390-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-73-00-810-762-A ** ON A/C NOT FOR ALL
Subtask 23-73-00-710-391-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:26:02 UTC
PISA data transfer failure
1. Possible Causes
- PISA
- DEU-A 200RHxx
- wiring
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 23-73-00-740-005 | BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS |
| ASM 237314 | |
| AMM 23-73-41-000-001 | Removal of the Passenger Interface and Supply Adapter (602RH) |
| AMM 23-73-41-400-001 | Installation of the Passenger Interface and Supply Adapter (602RH) |
| AMM 23-73-46-000-001 | Removal of the Decoder/Encoder Unit A (200RH) |
| AMM 23-73-46-400-001 | Installation of the Decoder/Encoder Unit A (200RH) |
Subtask 23-73-00-710-390-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-73-00-810-762-A ** ON A/C NOT FOR ALL
A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.
Subtask 23-73-00-810-763-A ** ON A/C NOT FOR ALL B. If the test confirms the fault:
5. Close-up- replace the PISA related to the fault message
AMM 23-73-41-000-001 and AMM 23-73-41-400-001.
- replace the DEU-A 200RHxx related to the fault message
AMM 23-73-46-000-001 and AMM 23-73-46-400-001.
- do a check and repair the wiring between:
PISA and the related DEU-A 200RHxx with the signal name 28VDC IN/OUT,
PISA and the related DEU-A 200RHxx with the signal name DC GND IN,
PISA and the related DEU-A 200RHxx with the signal name LVDS P,
PISA and the related DEU-A 200RHxx with the signal name LVDS N,
ASM 237314
Subtask 23-73-00-710-391-A ** ON A/C NOT FOR ALL
A. Do the test given in para. 3.A.