Failure of the SDAC 2 Pin Programming

TASK 31-54-00-810-929-A
Failure of the SDAC 2 Pin Programming

1. Possible Causes

SDAC-2 [1WV2]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 31-50-00-710-001	Ground Scanning of the Central Warning System
AMM 31-50-00-740-002	Read and Decode the Hardware Pin Programming of the SDAC and FWC
AWM 315406
AMM 31-55-34-000-001	Removal of the SDAC
AMM 31-55-34-400-001	Installation of the SDAC

3. Fault Confirmation
Subtask 31-54-00-710-291-A

A. Test
Do the ground scanning of the central warning systems AMM 31-50-00-710-001.

4. Fault Isolation
Subtask 31-54-00-810-178-A

A. If the test gives the maintenance message SDAC2 PIN PROGRAM FAIL:

read the SDAC 2 pin programming AMM 31-50-00-740-002.

(1) Compare the SDAC 2 pin programming with the state of the aircraft pin programming given in the ASM AWM 315406.
(a) If the pin programming is incorrect:

repair the aircraft wiring.

(b) If the pin programming is correct:

replace the SDAC-2 [1WV2] AMM 31-55-34-000-001 and AMM 31-55-34-400-001.

Subtask 31-54-00-710-292-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:30:32 UTC