Deactivation of the DMC

TASK 31-63-00-040-002-A
Deactivation of the DMC

ZONE: 127
ZONE: 128
FIN: 1WT1 ** ON A/C NOT FOR ALL
FIN: 1WT2 ** ON A/C NOT FOR ALL
FIN: 1WT3 ** ON A/C NOT FOR ALL

1. Reason for the Job
To swap the defective DMC1 (DMC2) with the DMC3.

NOTE: This deactivation task is not related to an AFM-CDL/MMEL item.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
127	REAR AVIONIC COMPARTMENT
128	REAR AVIONIC COMPARTMENT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 31-63-34-000-001-A	Removal of the DMC
TASK 31-63-34-400-001-A	Installation of the DMC

3. Job Set-up
Subtask 31-63-00-860-053-A ** ON A/C NOT FOR ALL

A. In the next paragraph, open the circuit breakers related to the Display Management Computer 3 (DMC 3), then open the circuit breakers related to the defective DMC only (DMC 1 or DMC 2).

Subtask 31-63-00-865-053-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1WT1 (DMC1)
49VU	EIS/DMC1/SPLY	10WT1	E11
49VU	EIS/DMC1/SWTG	21WT1	E09
** ON A/C NOT FOR ALL
49VU	EIS/DMC1/SPLY	10WT1	E10
49VU	EIS/DMC1/SWTG	21WT1	E08
** ON A/C NOT FOR ALL
FOR FIN: 1WT2 (DMC2)
121VU	EIS/DMC2/SPLY	10WT2	Q08
121VU	EIS/DMC2/SWTG	21WT2	R08
FOR FIN: 1WT3 (DMC3)
49VU	EIS/DMC3/SWTG	21WT3	E07
121VU	EIS/DMC3/SPLY	10WT3	Q09

4. Procedure
Subtask 31-63-00-020-051-A ** ON A/C NOT FOR ALL

A. Deactivation of the DMC
(1) Remove the defective DMC (DMC 1 or DMC 2) and DMC 3 (Ref. AMM TASK 31-63-34-000-001).
(2) Make a mark near the label of the defective DMC (DMC 1 or DMC 2).
(3) Install the DMC 3 at the location of the defective DMC (DMC 1 or DMC 2) (Ref. AMM TASK 31-63-34-400-001).

5. Close-up
Subtask 31-63-00-860-054-A ** ON A/C NOT FOR ALL

A. Make sure that the work area is clean and clear of tools and other items.

Subtask 31-63-00-860-059-A ** ON A/C NOT FOR ALL

B. In the next paragraph, close the circuit breakers related to the DMC (DMC 1 or DMC 2) that you replaced with DMC 3.

Subtask 31-63-00-865-059-A ** ON A/C NOT FOR ALL

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1WT1 (DMC1)
49VU	EIS/DMC1/SPLY	10WT1	E11
49VU	EIS/DMC1/SWTG	21WT1	E09
** ON A/C NOT FOR ALL
49VU	EIS/DMC1/SPLY	10WT1	E10
49VU	EIS/DMC1/SWTG	21WT1	E08
** ON A/C NOT FOR ALL
FOR FIN: 1WT2 (DMC2)
121VU	EIS/DMC2/SPLY	10WT2	Q08
121VU	EIS/DMC2/SWTG	21WT2	R08

[Rev.10 from 2021] 2026.04.01 00:38:22 UTC