Failure of the SDAC 1 Pin Programming

TASK 31-54-00-810-928-A
Failure of the SDAC 1 Pin Programming

1. Possible Causes

SDAC-1 [1WV1]

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 315405
AMM 31-55-34-000-001	Removal of the SDAC
AMM 31-55-34-400-001	Installation of the SDAC

3. Fault Confirmation
Subtask 31-54-00-710-289-A

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

4. Fault Isolation
Subtask 31-54-00-810-177-A

A. If the test gives the maintenance message:
SDAC1: PIN PROGRAM FAIL

read the SDAC 1 pin programming AMM 31-50-00-740-002.

(1) Compare the SDAC 1 pin programming with the state of the aircraft pin programming given in the ASM AWM 315405.
(a) If the pin programming is incorrect:

repair the aircraft wiring.

(b) If the pin programming is correct:

replace the SDAC-1 [1WV1] AMM 31-55-34-000-001 and AMM 31-55-34-400-001.

Subtask 31-54-00-710-290-A

B. Do the test given is Para. 3.

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