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R - push and hold the PA pushbutton R switch.
R 10. In the cockpit on the hand R microphone:
R - push the PTT and speak into R the hand microphone during the R announcements from the cockpit R handset.
R 11. On the Capt audio selector R panel:
R - release the PA pushbutton R switch.
R
R
R 12. In the cockpit:
R - put the hand microphone and R the handset back to their R cradles.
-the PA pushbutton-switch integral light comes on.
In the cabin, in all lavatories and all attendant stations:
- only the hand microphone announcements are heard from the loudspeakers.
On the Capt audio selector panel:
-
the PA pushbutton-switch integral light goes off.

On all AIPs 320RH:

-
the PA ALL IN USE message goes off.

 

R **ON A/C 001-049, 101-149, 201-299, 401-499,
 Subtask 23-73-00-710-177
 D. Do the test of the automatic high-volume announcement. NOTE : On all the emergency oxygen-containers set the door stops to the
____
 test position.

 NOTE : Do not hold the MASK MAN ON pushbutton switch for more than 30
____ sec., because the FAULT indication light in the TMR RESET pushbutton switch comes on after 30 sec.
R 1EFF : 001-049, 101-149, 201-299, 401-499, 1 23-73-00Page B547 1 1 Aug 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
1. At the FWD attendant station:  At the FWD attendant station:
 - lift the handset from the cradle. - a tone is heard in the handset.
 On the FWD Attendant Indication Panel (AIP) 320RH:
 - the number symbol comes on.
 2. On the handset:
 - push the PA ALL pushbutton switch. - the number symbol goes off.
 - the PA ALL message comes on.
 On the AFT AIPs 320RH:
 - the PA ALL IN USE message comes on.
 In the handset:
 - the tone stops.
 In the cabin, all lavatories and both AFT attendant stations:
 - push and hold the PTT and the PA ALL pushbutton switch.  - a tone is heard through theloudspeakers.

 NOTE : Before you start the next test step make sure that all emergency
____
 oxygen-container door-stops are in the test position.

 3.
 In the cockpit, on C/B panel 49VU:

 - open the C/Bs 2WR, 3WR, 4WR,
 5WR and 6WR.

 4.
 In the cockpit, on overhead panel  In the cabin: 21VU:

R 1EFF : 001-049, 101-149, 201-299, 401-499, 1 23-73-00Page B548 1 1 Aug 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
-lift the switch guard, push and release the MASK MAN ON pushbutton switch.
5. In the cockpit, on maintenance panel 50VU:
 -push and release the OXYGEN TMR RESET pushbutton switch.
6. On the C/B panel 49VU:
 - open the C/B 2KS2.
-close the C/B 2KS2.
7. On the handset:
-release the PTT and the PA ALL pushbutton switch.
 8. At the FWD attendant station:
 -put the handset back to the cradle.
9. In the cockpit, on C/B panel 49VU:
 -close the C/Bs 2WR, 3WR, 4WR, 5WR and 6WR.
-
the doors of the emergency oxygencontainers (circuit breaker 7WRrelated) open to the test position.

 In the cabin, all lavatories and both AFT attendant stations:

 -
the volume of the tone through the loudspeakers increases.

-
the volume of the tone through theloudspeakers decreases to the normal level.

-
the volume of the tone through the loudspeakers increases.

-
the volume of the tone through the loudspeakers decreases to the normal level.

In the cabin, all lavatories and both AFT attendant stations:

-
the tone stops.

All indications and annunciations arecancelled.
R 1EFF : 001-049, 101-149, 201-299, 401-499, 1 23-73-00Page B549 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 051-099,

 Subtask 23-73-00-710-177-B
 D. Do the test of the automatic high-volume announcement. NOTE : On all the emergency oxygen-containers set the door stops to the
____
 test position.

 NOTE : Do not hold the MASK MAN ON pushbutton switch for more than 30
____ sec., because the FAULT indication light in the TMR RESET pushbutton switch comes on after 30 sec.
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
　
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