Invalid Pin Programming of the ATSU

TASK 46-21-00-810-805-A
Invalid Pin Programming of the ATSU

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 46-21-00-740-001	BITE Test of the ATIMS
ASM 462107
AMM 46-21-34-000-001	Removal of the Air Traffic Service Unit (ATSU)
AMM 46-21-34-400-001	Installation of the Air Traffic Service Unit (ATSU)

3. Fault Confirmation
Subtask 46-21-00-740-052-A

A. Test
(1) Do the BITE test of the ATIMS AMM 46-21-00-740-001.

4. Fault Isolation
Subtask 46-21-00-810-051-A

A. If the test gives the maintenance message WRG: PIN PROG/ATSU1(1TX1):

(1) If the fault continues:

do a check and repair the wiring from pins AB/15A, 15B, 15C, 15D, 15E, 15F, 15G, 15H, 15J, 15K, 14J, 14K of the ATSU to the first terminal block ASM 462107.

Subtask 46-21-00-740-053-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:34:18 UTC