Operational Test of EFIS/ECAM Switching Functions

TASK 31-60-00-710-002-A
Operational Test of EFIS/ECAM Switching Functions

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.

ZONE: 210

1. Reason for the Job
Refer to the MPD TASK: 316000-01
OPERATIONAL CHECK OF EFIS/ECAM SWITCHING FUNCTIONS:
- MANUAL DMC 1 + 2 TO DMC 3 SWITCHING
- MANUAL PFD/ND TRANSFER
- MANUAL ECAM/ND TRANSFER
- AUTOMATIC UPPER DU/LOWER DU TRANSFER
- AUTOMATIC PFD/ND TRANSFER
To make sure that these functions are correct :

Automatic PFD/ND Transfer
Manual PFD/ND Transfer
Manual ECAM/ND Transfer
Manual DMC1 and DMC2 to DMC3 switching
Automatic Upper DU/Lower DU Transfer.

2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

B. 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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 31-60-00-860-056-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 EIS Start Procedure (Ref. AMM TASK 31-60-00-860-001)
On the center pedestal, on the SWITCHING panel 8VU, make sure that the ATT HDG, AIR DATA, EIS DMC, ECAM/ND XFR selector switches are at NORM.

Subtask 31-60-00-865-052-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	EIS/PFD CAPT/SPLY	11WT1	E03
** 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
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/ND CAPT/SWTG	23WT1	E02
49VU	EIS/ND CAPT/SPLY	12WT1	E01
** ON A/C NOT FOR ALL
49VU	EIS/PFD/CAPT/SPLY	11WT1	E03
** ON A/C NOT FOR ALL
121VU	EIS/DMC3/SPLY	10WT3	Q09
121VU	EIS/DMC2/SPLY	10WT2	Q08
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 31-60-00-869-055-A ** ON A/C NOT FOR ALL

C. On the panels 301VU and 500VU and on the ECAM control panel:
- set all the potentiometers to the center position.

4. Procedure
Subtask 31-60-00-710-051-A ** ON A/C NOT FOR ALL

A. Automatic PFD/ND Transfer

NOTE: This test is for the CAPT side. For the F/O side, use the indications between parentheses.

ACTION	RESULT
1.On the panel 301VU (500VU):
set the PFD potentiometer to OFF.	the PFD is stopped and the PFD image moves to the ND.
set the PFD potentiometer to the center position.	after some seconds, the images go to their initial configuration.

Subtask 31-60-00-710-052-A ** ON A/C NOT FOR ALL

B. Manual PFD/ND Transfer

NOTE: This test is for to the CAPT side. For the F/O side, use the indications between parentheses.

ACTION	RESULT
1.On the panel 301VU (500VU):
push then release the PFD/ND/XFR pushbutton switch.	on the PFD: * the ND image comes into view. on the ND: * the PFD image comes into view.
push then release the PFD/ND/XFR pushbutton switch.	the PFD and ND images go to their initial position.

Subtask 31-60-00-710-053-A ** ON A/C NOT FOR ALL

C. Manual ECAM/ND Transfer

ACTION	RESULT
1.On the center pedestal, on the SWITCHING panel 8VU:
set the ECAM/ND/XFR selector switch to CAPT.	on the lower ECAM DU: * the ENGINE/WARNING image comes into view. The system page comes into view on the CAPT ND. on the upper ECAM DU: * the diagonal line comes into view.
set the ECAM/ND/XFR selector switch to F/O.	on the upper ECAM DU: * the ENGINE/WARNING image comes into view. on the lower ECAM DU: * the diagonal line comes into view and the system image comes into view on the F/O ND.
set the ECAM/ND/XFR selector switch to NORM.	the DUs go to their initial configuration.

Subtask 31-60-00-710-054-B ** ON A/C NOT FOR ALL

D. Manual DMC 1 and 2 to DMC 3 Switching

ACTION	RESULT
1.On the overhead C/B panel 49VU:
open the circuit breaker 10WT1.	the diagonal line comes into view on the upper ECAM DU and on the CAPT PFD and ND. on the lower ECAM DU, the ENGINE WARNING image replaces the system image and shows this indication: * EIS DMC 1 FAULT on the glareshield: * the MASTER CAUT lights come on. you can hear the single chime.
2.On the center pedestal, on the SWITCHING panel 8VU:
set the EIS DMC selector switch to CAPT/3.	the diagonal line goes out of view and the DUs show their initial image.
3.On the panel 301VU:
push and release the PFD/ND/XFR pushbutton switch.	on the PFD and the ND, the images change position.
again push and release the PFD/ND/XFR pushbutton switch.	the DUs go to their initial configuration.
4.On the rear C/B breaker panel 121VU:
open the circuit breaker 10WT3.	the diagonal line comes into view on the upper ECAM DU and on the CAPT ND and PFD. on the lower ECAM DU, the ENGINE WARNING image comes into view and shows the indication: * EIS DMC 1 FAULT * DMC 3 FAULT
5.On the rear C/B breaker panel 122VU:
open the circuit breaker 17XN1.	on the upper ECAM DU and on the CAPT PFD and ND: * the diagonal line goes out of view and the DUs show their image. on the upper ECAM DU: * the ELEC AC BUS 1 FAULT indication comes into view * the EIS DMC 1 FAULT is still displayed * DMC 3 FAULT is not displayed any more.
6.On the panels 121VU and 122VU:
close the circuit breaker 10WT3 and then the 17XN1.	on the three DUs, the related images of each DU stay in view. the ELEC AC BUS 1 FAULT goes out of view.
7.On the overhead C/B panel 49VU:
close the circuit breaker 10WT1.	on the Upper ECAM DU: * the EIS DMC 1 FAULT indication goes out of view * the MASTER CAUT light is off.
8.On the SWITCHING panel 8VU:
set the EIS DMC selector switch to NORM.	there is no change.
9.On the rear C/B panel 121VU:
open the circuit breaker 10WT2.	the diagonal line comes into view on the lower ECAM DU and on the F/O PFD and ND. on the upper ECAM DU, the indication comes into view: * EIS DMC 2 FAULT on the glareshield: * the MASTER CAUT lights come on. you can hear the single chime.
10.On the SWITCHING panel 8VU:
set the EIS DMC selector switch to F/O/3.	the diagonal line goes out of view and the DUs show their image.
11.On the rear C/B panel 121VU:
close the circuit breaker 10WT2.	on the upper ECAM DU: * the EIS DMC 2 FAULT indication goes out of view. * the MASTER CAUT light is off.
12.On the SWITCHING panel 8VU:
set the EIS DMC selector switch to NORM.	there is no change.

Subtask 31-60-00-710-055-A ** ON A/C NOT FOR ALL

E. Automatic Upper DU/Lower DU Transfer

ACTION	RESULT
1.On the center pedestal, on the ECAM control panel:
set the UPPER DISPLAY potentiometer to OFF.	the upper ECAM DU is stopped. the ENGINE/WARNING image goes to the lower ECAM DU.
2.On the center pedestal, on the ECAM control panel: set the UPPER DISPLAY potentiometer to ON	the display units go back to their initial configuration.

5. Close-up
Subtask 31-60-00-860-057-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Do the EIS Stop Procedure (Ref. AMM TASK 31-60-00-860-002)
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)
(3) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 08:25:44 UTC