DOC AIRBUS | TSM A320FFailure of the IR1 SDI Pin-Programming
TASK 34-14-00-810-878-A
Failure of the IR1 SDI Pin-Programming
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-14-00-740-160-A 4. Fault Isolation
Subtask 34-14-00-810-116-C
[Rev.8 from Aug 2018]
2026.04.04 04:32:48 UTC
Failure of the IR1 SDI Pin-Programming
1. Possible Causes
- wiring of the defective programming pins
- ADIRU-1 [1FP1]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| ASM 341201 | |
| AMM 34-12-34-000-001 | Removal of the ADIRU |
| AMM 34-12-34-400-001 | Installation of the ADIRU |
| AMM 34-14-00-740-001 | Interface Test of the IR |
Subtask 34-14-00-740-160-A 4. Fault Isolation
Subtask 34-14-00-810-116-C
A. If the test gives the maintenance message WRG:SDI PIN PROG/ADIRU1 (1FP1):
Subtask 34-14-00-740-161-A - do a check of the SDI pin-programming pins AB/1A, 5A, 6A on the rack connector,
- compare the status of the SDI pin-programming with the status given in the ASM ASM 341201.
- repair the wiring of the defective programming pins ASM 341201.
- replace the ADIRU-1 [1FP1] AMM 34-12-34-000-001 and AMM 34-12-34-400-001.
B. Do the test given in Para. 3.