(2) Activation of the test on the indicators The ATC 1(2) test function can be activated in ground conditions only by pressing the TEST key on the ATC 1(2) maintenance sub-menu or by pressing the pushbutton switch on the face of the transponder. The following sequence is then generated on the output of the equipment:
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| DURATION ----------- | MESSAGE | -------------- ATC CONTROL UNIT AND FACE OF ATC TRANSPONDER ---------------------------------------------- |--
| FOR 1 s | Failure | - Failure light comes on on control unit |
| | | - all LEDs come on on transponder face |
| AFTER 1 s | | - All indicator lights go off |
| FOR 10 s | | - The indicator lights associated with the |
| | | self-test results come on. Afterwards, all |
| | | indicator lights go off. |
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When the selected system on the ATC control unit is different from the system under test, this causes illumination of a message on the MCDU after the TEST selection. This message is: PLEASE CHECK IF THE CONTROL PANEL SWITCH IS ON SYSTEM (1 OR 2) AND PRESS TEST KEY. Reminder: The TEST pushbutton switch is used to initiate the LED test and transponder self-test. When this pushbutton switch is pressed for more than five seconds, the transponder reads the Non-Volatile Memory fault data for last four legs and the applicable fault indicator lights come on.
**ON A/C ALL
C. Power-up Tests Initialization and Cockpit Repercussions
(1)
Conditions of power-up tests initialization
-How long the computer must be de-energized: 1 s.
-A/C configuration: whatever the A/C configuration on ground
(2)
Duration of power-up tests: 3 s approx.
(3)
Results of power-up tests (cockpit repercussions, if any, in case of tests pass/tests failed).
-
Tests pass: none
-
Tests failed: on the ATC control unit, FAULT or FAIL indicator light comes on or F indication appears on the display (depending on the type of the control unit).
1EFF : ALL 1 34-52-00Page A5 1 1 May 01/05 1 1 1CES 1 ATC/MODE S (SELECT) - MAINTENANCE PRACTICES
___________________________________________
TASK 34-52-00-860-001
Procedure after a Change of Aircraft Registration Number
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific circuit breaker(s) safety clip(s)
B. Referenced Information
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REFERENCE DESIGNATION
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R AWM 345205 R AWM 345206
3. Job Set-up
__________
Subtask 34-52-00-865-068
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU COM NAV/ATC/1 5SH1 G11 121VU COM NAV/ATC/2 5SH2 K07
1EFF : ALL 1 34-52-00Page 201 1 1 Nov 01/04 1 1 1CES 1 1EFF : ALL 1 34-52-00Page 202 1 1 Nov 01/04 1 1 1CES 1 ATC - ADJUSTMENT/TEST
4. Procedure_________
Subtask 34-52-00-860-093
A. Change of ICAO Address
(1) Convert the ICAO address into binary format
R (a) Find the correct plug (Ref. AWM 345205) and (Ref. AWM 345206).
(b) Do the pin-programming in relation to the binary format of the ICAO address. To have a pin at "1" on the plug; you must connect this pin to common pin b of the same plug.
NOTE : Pin A of the plug is Most Significant Bit (MSB).____
R R NOTE : For example, ICAO address C0099D (hexadecimal)/60004635____ (octal) must be converted into 1100 0000 0000 1001 1001 1101 (binary). Thus, you must connect pins A, B, N, S, T, W, X, Y and a of the plug to pin b (Ref. AWM 345205) and (Ref. AWM 345206).
5. Close-up________
Subtask 34-52-00-865-069
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 5SH1, 5SH2
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