W DOC AIRBUS | AMM A320F

Operational Test of the DME

TASK 34-51-00-710-001-A
Operational Test of the DME

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
1. Reason for the Job
Reception Test of the DME beacon.
2. Job Set-up Information
 A. Referenced Information
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 34-10-00-860-002-A
ADIRS Start Procedure
TASK 34-10-00-860-004-A
Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-01
Automatic Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-02
Inertial Reference (IR) Alignment-Procedure to do a Check of the Links between each Flight Management and Guidance Computer (FMGC) and the three Air Data/Inertial Reference Units (ADIRUs)
TASK 34-10-00-860-005-A
ADIRS Stop Procedure
F VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL
F VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL
F VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 34-51-00-860-050-A
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 IR alignment procedure
(Ref. AMM TASK 34-10-00-860-004).
   (4) On the EFIS control sections of the FCU:
  • set the mode selector switches to ROSE or ARC
  • set the ADF/VOR selector switches to VOR.
   (5) On the center pedestal, on the RMP1 and RMP2, set the ON/OFF switches to ON.
Subtask 34-51-00-865-051-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUNAV/DME/11SD1G14
121VUCOM NAV/DME/21SD2K06
4. Procedure
Subtask 34-51-00-710-055-A ** ON A/C NOT FOR ALL
A. Operational Test of the DME
NOTE: The DME and the VOR/DME data come into view on the ND. The ILS/DME data come into view on the PFD.
ACTION
RESULT
1.On the RMP1 (RMP2):

On the CAPT (F/O) ND for VOR/DME or on the CAPT (F/O) PFD for ILS/DME, the range between the aircraft and the station comes into view at the bottom.
On the RMI, the range between the aircraft and the station is also in view.
NOTE: If you set the frequency of an ILS/DME station, DME data are not shown on the RMI.
2.On the center pedestal, on the ACP:

  • push the VOR1 (VOR2) or ILS pushbutton switch.
In the loudspeakers, you can hear the Morse code signal from the station set.
Subtask 34-51-00-710-055-B ** ON A/C NOT FOR ALL
A. Operational Test of the DME
NOTE: The DME and the VOR/DME data come into view on the ND. The ILS/DME data come into view on the PFD.
ACTION
RESULT
1.On the RMP1 (RMP2):

On the CAPT (F/O) ND for VOR/DME or on the CAPT (F/O) PFD for ILS/DME, the range between the aircraft and the station comes into view at the bottom.
2.On the center pedestal, on the ACP:

  • push the VOR1 (VOR2) or ILS pushbutton switch.
In the loudspeakers, you can hear the Morse code signal from the station set.
5. Close-up
Subtask 34-51-00-860-051-A
A. Put the aircraft back to its initial configuration.
   (1) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
   (2) On the RMP, set the ON/OFF switch to OFF.
   (3) On the ACP, release the VOR1 (VOR2) or ILS pushbutton switch.
   (4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
   (5) Make sure that the work area is clean and clear of tools and other items.
[Rev.10 from 2021] 2026.04.01 01:02:29 UTC
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