DOC AIRBUS | AMM A320FOperational Test of the DMC/DU data bus
TASK 31-60-00-720-002-A
Operational Test of the DMC/DU data bus
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 31-60-00-860-083-A ** ON A/C NOT FOR ALL
Subtask 31-60-00-720-050-A ** ON A/C NOT FOR ALL
Subtask 31-60-00-860-084-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:38:07 UTC
Operational Test of the DMC/DU data bus
ZONE: 210
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 31-32-00-860-008-A | Procedure to Get Access to the SYSTEM REPORT/TEST/INST Page |
| TASK 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
| TASK 34-10-00-860-002-A | ADIRS Start Procedure |
| TASK 34-10-00-860-005-A | ADIRS Stop Procedure |
Subtask 31-60-00-860-083-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002)
(2) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002)
(3) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001)
(4) On the maintenance PNL 50VU:
- Release the FADEC GND PWR 1(2) pushbutton switch.
- On the pushbutton switch, the ON legend comes on.
(5) On one MCDU, get the SYSTEM REPORT/TEST INST menu page (Ref. AMM TASK 31-32-00-860-008)
Subtask 31-60-00-865-065-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002)
(2) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002)
(3) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001)
(4) On the maintenance PNL 50VU:
- Release the FADEC GND PWR 1(2) pushbutton switch.
- On the pushbutton switch, the ON legend comes on.
(5) On one MCDU, get the SYSTEM REPORT/TEST INST menu page (Ref. AMM TASK 31-32-00-860-008)
B. Make sure that this(these) circuit breaker(s) is(are) closed:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/ECAM/CTL/PNL | 15WT | E12 |
| 49VU | EIS/DMC1/SPLY | 10WT1 | E11 |
| 49VU | EIS/DMC3/STBY/SPLY | 14WT1 | E10 |
| 49VU | EIS/DMC1/SWTG | 21WT1 | E09 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/DMC3/SWTG | 21WT3 | E07 |
| 49VU | EIS/ECAM DU/UPPER/SWTG | 24WT1 | E06 |
| 49VU | EIS/ECAM DU/UPPER/SPLY | 13WT1 | E05 |
| 49VU | EIS/PFD CAPT/SWTG | 22WT1 | E04 |
| 49VU | EIS/PFD/CAPT/SPLY | 11WT1 | E03 |
| 49VU | EIS/ND CAPT/SWTG | 23WT1 | E02 |
| 49VU | EIS/ND CAPT/SPLY | 12WT1 | E01 |
| 49VU | SDAC/1/SPLY | 3WV | F04 |
| 49VU | FWS/FWC1/SPLY | 3WW | F01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | EIS/ECAM/CTL/PNL | 15WT | E11 |
| 49VU | EIS/DMC1/SPLY | 10WT1 | E10 |
| 49VU | EIS/DMC3/STBY/SPLY | 14WT1 | E09 |
| 49VU | EIS/DMC1/SWTG | 21WT1 | E08 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | EIS/DMC3/SPLY | 10WT3 | Q09 |
| 121VU | EIS/DMC2/SPLY | 10WT2 | Q08 |
| 121VU | EIS/FWC2/SPLY | 2WW | Q07 |
| 121VU | EIS/SDAC/2/SPLY | 2WV | Q06 |
| 121VU | EIS/ECAM DU/LOWER/SPLY | 13WT2 | R11 |
| 121VU | EIS/ECAM DU/LOWER/SWTG | 24WT2 | R10 |
| 121VU | EIS/DMC2/SWTG | 21WT2 | R08 |
| 121VU | EIS/ND/F/O/SWTG | 23WT2 | R06 |
| 121VU | EIS/PFD/F/O/SWTG | 22WT2 | R05 |
| 121VU | EIS/ND/F/O | 12WT2 | R04 |
| 121VU | EIS/PFD/F/O | 11WT2 | R03 |
| 122VU | ELEC/AC/BUS1/CTL | 17XN1 | V25 |
Subtask 31-60-00-720-050-A ** ON A/C NOT FOR ALL
A. Operational test of the DMC/DU data bus
5. Close-up| ACTION | RESULT |
|---|---|
| On the MCDU: | |
| press the line key adjacent to the EIS 1 (2), (3) indication |
|
| 1.press the line key adjacent to the SWTG/BUS/DU TESTS indication |
|
| 2.push the line key adjacent to DATA BUS TEST |
|
| 3.obey the intructions such as INITIAL CONDITIONS and press the line key adjacent to START TEST |
|
Subtask 31-60-00-860-084-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) On the MCDU, push the line key adjacent to the RETURN indication until the MAINTENANCE MENU 1/2 page comes into view
(2) On the MCDU, set the BRT knob to OFF.
(3) On the maintenance panel 50VU:
- Push the FADEC GND PWR 1(2) pushbutton switch.
- On the pushbutton switch the ON legend goes off.
(4) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005)
(5) Do the EIS Stop Procedure (Ref. AMM TASK 31-60-00-860-002)
(6) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)
(7) Make sure that the work area is clean and clear of tools and other items.
(1) On the MCDU, push the line key adjacent to the RETURN indication until the MAINTENANCE MENU 1/2 page comes into view
(2) On the MCDU, set the BRT knob to OFF.
(3) On the maintenance panel 50VU:
- Push the FADEC GND PWR 1(2) pushbutton switch.
- On the pushbutton switch the ON legend goes off.
(4) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005)
(5) Do the EIS Stop Procedure (Ref. AMM TASK 31-60-00-860-002)
(6) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)
(7) Make sure that the work area is clean and clear of tools and other items.