(3)
 On the maintenance panel 50VU, make sure that the SVCE INT OVRD pushbutton switch is not pushed.

 (4)
 On the overhead control and indicating panel 48VU, make sure that the AUDIO SWITCHING selector switch is in the NORM position.

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 B. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU COM/AUDIO/FLT/INTPH 9RN G08 49VU COM/AUDIO/ACP/F/O 5RN G07 49VU COM/AUDIO/ACP/CAPT 4RN G06 121VU COM NAV/SELCAL 8RN M04 121VU COM NAV/ACP/THIRD/OCCPNT 6RN M02
 4. Procedure
_________
 Subtask 23-51-00-710-056
 A. On one MCDU, get the SYSTEM REPORT/TEST COM menu page (Ref. TASK 31-32-00-860-003).
 Subtask 23-51-00-740-050-A
 B. Do the BITE test:
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the MCDU, on the COM menu
 page: 
R
 - Push the line key adjacent to
 the AMU indication. 
R  Two configuration are possible: 
R  First configuration: 
R 
R 
R  Second configuration: 
R 
R 
R
 2. On the AIS page: 

On the MCDU:
-
the AIS page comes into view (go to step 2).

On the MCDU:

-
the AUDIO page comes into view (go to step 3).

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 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
-Push the line key adjacent to the TEST indication.
3. On the AUDIO page:
 -Push the line key adjacent to the TEST AMU ACP AUDIO indication.
4. On the MCDU:
 -Push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
 5. Close-up
________
 Subtask 23-51-00-862-053
-
The TEST IN PROGRESS XX s comes intoview.

 -
The TEST OK page comes into view.

This message comes into view :
NO FAULT ACP1 NO FAULT ACP2 NO FAULT ACP3 NO FAULT AMU
 A. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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 **ON A/C 001-001, 051-052,

 TASK 23-51-00-740-003 BITE Test of the SELCAL-CALL Part of the AMU WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
 NOTE : You can do the test in the hangar.
____
 1.
 Reason for the Job

__________________
 To make sure that the SELCAL-CALL part of the AMU operates correctly.

 2.
 Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002  Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 31-32-00-860-003 Procedure to Get Access to the SYSTEM REPORT/TEST/COM Page
 3. Job Set-up
__________ Subtask 23-51-00-860-057
 A. Aircraft Maintenance Configuration
 (1)
 Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).

 (2)
 On all the ACPs, make sure that:

 -The RAD/INT switch is in the middle position,
 -
All transmission pushbutton switches are fully out.

 -
All reception pushbutton switches are pushed (no reception).

 (3)
 On the maintenance panel 50VU, make sure that the SVCE INT OVRD pushbutton switch is not pushed.

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 (4) On the overhead control and indicating panel 48VU, make sure that the

 AUDIO SWITCHING selector switch is in the NORM position.
 Subtask 23-51-00-865-054
 B. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU COM/AUDIO/FLT/INTPH 9RN G08 49VU COM/AUDIO/ACP/F/O 5RN G07 49VU COM/AUDIO/ACP/CAPT 4RN G06 121VU COM NAV/SELCAL 8RN M04 121VU COM NAV/ACP/THIRD/OCCPNT 6RN M02
　
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