3. Job Set-up
__________
Subtask 23-12-00-860-050
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Connect a boomset to the jack panel at all the crew stations.
Subtask 23-12-00-865-050
B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU COM/RMP/1 2RG1 G10 49VU COM/VHF/1 2RC1 G09 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/VHF/3 2RC3 L05 121VU COM NAV/VHF/2 2RC2 L04 121VU COM NAV/SELCAL 8RN M04
R 121VU COM NAV/ACP/THIRD/OCCPNT 6RN M02
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4. Procedure
_________
WARNING : OBEY THE RADIO REGULATIONS AND MAKE SURE THAT THE FREQUENCY IS
_______
AVAILABLE BEFORE YOU TRANSMIT.
Subtask 23-12-00-710-050
A. Operational Test of the VHF System NOTE : This test is for the system 1. For the other system(s), use the
____
indications between the parentheses.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the RMP1:
-Set the ON/OFF selector switch to ON.
-Push the VHF1 (VHF2, VHF3) pushbutton switch.
-In the STBY/CRS display window, with the dual selector knob, set the frequency of a station that transmits.
-Start this frequency. To do this, push the transfer pushbutton switch (double arrow) between the two display windows.
2. On the ACP of the station under maintenance:
-Push the VHF1 (VHF2, VHF3) transmission pushbutton switch.
On the RMP1:
-
The RMP shows the last frequenciesand the last function used.
-
The green LED on this pushbuttonswitch comes on.
-
The SEL indicator light (white LED) comes on only for the VHF2 system.
-
The frequency set comes into view inthe ACTIVE display window.
On the ACP:
-
The green bars on the VHF1 (VHF2,VHF3) transmission pushbutton switch come on.
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-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
- Push and release the VHF1 - The reception pushbutton switch comes
(VHF2, VHF3) reception fully out and comes on.
pushbutton switch.
- Make sure that the reception in the
boomset is correct.
- Smoothly turn the VHF1 (VHF2, - The reception you can hear must
VHF3) reception pushbutton change smoothly without interference.
switch clockwise.
- Set the INT/RAD switch to RAD
and hold it in this position.
(You can do this operation on
the PTT switch of the sidestick
controller at the CAPT. or F/O
station).
- Speak in the boomset - Make sure that the transmission is
microphone. correct.
- Release the INT/RAD switch - The INT/RAD switch comes back to the
(or the PTT switch on the center position.
sidestick controller at the
CAPT. or F/O station).
5. Close-up________
Subtask 23-12-00-860-051
A. Put the aircraft back to its initial configuration.
(1)
On the ACP, push the VHF1 (VHF2, VHF3) transmission pushbutton switch and the VHF1 (VHF2, VHF3) reception pushbutton switch.
(2)
On the RMP1, set the ON/OFF selector switch to OFF.
(3)
Disconnect the boomset at all the crew stations.
(4)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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TASK 23-12-00-740-001 BITE Test of the VHF System WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______
YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
1.
Reason for the Job
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