Reset of the Head End Server Unit (HESU) from ALNA Graphical User Interface (GUI)

TASK 46-41-00-600-807-A
Reset of the Head End Server Unit (HESU) from ALNA Graphical User Interface (GUI)

ZONE: 200

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

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 46-41-00-610-811-A	Get access to the ALNA Graphical User Interface (GUI) - Maintenance Access - with Multi-Purpose Flight-Attendant Panel (MP-FAP)
TASK 46-41-00-860-801-A	Connection of the Maintenance Laptop to the Cabin Plug

3. Job Set-up
Subtask 46-41-00-861-148-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) Access the ALNA Graphical User Interface (GUI) - Maintenance Access - via Multi-Purpose Flight-Attendant Panel (MP-FAP) (Ref. AMM TASK 46-41-00-610-811).
(3) Connect the maintenance laptop to the cabin plug (Ref. AMM TASK 46-41-00-860-801).

Subtask 46-41-00-865-159-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
2000VU	WAP	27MH	D07
2000VU	CINS-HESU	21RF	E02

4. Procedure
Subtask 46-41-00-610-066-A ** ON A/C NOT FOR ALL

A. Reset of the HESU from Graphical User Interface (GUI)

NOTE: You can do this procedure at the Multi-Purpose Flight-Attendant Panel (MP-FAP) or on the LAPTOP - FOR ALNA MAINTENANCE. The procedures are the same.

NOTE: The table that follows gives the procedure for the MP-FAP.

ACTION	RESULT
In the cabin, at the MP-FAP:	In the cabin, on the MP-FAP display:
1.Touch the "SYSTEM MONITORING" icon.	The "SYSTEM MONITORING" page shows.
2.Touch the "RESET" icon in the line HESU.	A pop-up window to confirm the reset shows.
3.Touch the "OK" icon.	After 3 to 5 minutes the reset is completed. During the HESU reset a message "No connection to Server" shows. The "System start" message shows.
	The "SERVICE OVERVIEW PAGE" shows. NOTE: After the reset of the HESU you have to login again on ALNA GUI if you want to continue the maintenance.

5. Close-up
Subtask 46-41-00-862-147-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Touch the "LOGOFF" icon.

NOTE: It is not necessary to log off, if you continue with a different test procedure.

(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.02 06:26:11 UTC