Pin Programming Aircraft Type Fault

TASK 26-17-00-810-808-A
Pin Programming Aircraft Type Fault

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 261701
AMM 26-17-34-000-001	Removal of the Smoke-Detection Control Unit (SDCU)
AMM 26-17-34-400-001	Installation of the Smoke-Detection Control Unit (SDCU)
AMM 31-32-00-860-005	Procedure to Get Access to the SYSTEM REPORT/TEST FIRE PROT Page

3. Fault Confirmation
Subtask 26-17-00-865-055-A ** ON A/C NOT FOR ALL

A. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/SDCU/CHAN1	11WQ	C06
122VU	AIR COND/SDCU/CHAN2	12WQ	T18

Subtask 26-17-00-710-062-A ** ON A/C NOT FOR ALL

B. Test
(1) Open the circuit breakers 11WQ and 12WQ.
(a) After 60 seconds, close the circuit breakers 11WQ and 12WQ.
(b) After one more minute, start the subsequent test.
(2) Get access to the MCDU/SDCU menu page AMM 31-32-00-860-005.
(a) Push the line key adjacent to the <ON GROUND FAULTS indication.
(b) The MCDU shows the fault message. If there is no fault, the MCDU shows NO FAILURE.

4. Fault Isolation
Subtask 26-17-00-810-070-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 26-17-00-810-071-A ** ON A/C NOT FOR ALL

B. If the test gives the maintenance message TEST OK, no other maintenance action is necessary.

Subtask 26-17-00-810-072-A ** ON A/C NOT FOR ALL

C. If the test gives the maintenance message WRG:PIN PROG AC TYPE:

do a check and repair of the PIN PROGRAMMING at the pin B/13D and A/13C of the SDCU (10WQ) ASM 261701.

(1) If the fault continues:

replace the SDCU (10WQ) AMM 26-17-34-000-001 and AMM 26-17-34-400-001.

Subtask 26-17-00-710-063-A ** ON A/C NOT FOR ALL

D. Do the test given in Para. 3.

5. Close-up
Subtask 26-17-00-860-056-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.

[Rev.8 from Aug 2018] 2026.04.04 04:27:21 UTC