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ACTION RESULT -------------------------------------------------------------------------------
- push and hold the PA pushbutton switch.  - the integral light of the PApushbutton switch comes on.
 3. In the cockpit on the hand microphone:  In the cockpit, the cabin, alllavatories and all ATTND Stations:
 - push the PTT and do an announcement.  - a LO-HI-LO tone is heard through theloudspeakers.
 - the announcement is heard through the loudspeakers.
 On all Attendant Indication Panels (AIP) 320RH and 322RH:
 - the message DIRECT PA IN USE comes on.
 - release the PA pushbutton switch.  - the message DIRECT PA IN USE goesoff.
 On the CAPT Audio Selector Panel:
 - the integral light of the PA pushbutton switch goes off.
 4. In the cockpit:  On all AIPs 320RH and 322RH:
 - remove the handset from the cradle.
 - push the PTT and do an announcement.  - the message DIRECT PA IN USE comeson.
 In the cabin, all lavatories and all ATTND Stations:
 - a LO-HI-LO tone is heard through the loudspeakers.
 - the announcement is heard through the loudspeakers.
 On all AIPs 320RH and 322RH:

 1EFF : 301-399, 1 23-73-00Page B560 1 1 Aug 01/05R 1 1 1CES 1

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ACTION RESULT -------------------------------------------------------------------------------
-put the handset back into its cradle.
5. On the CAPT Audio Selector Panel:
-push to reset and turn the PA rotary knob fully ccw.
6. On the Main Instrument Panel 301VU:
 -turn the LOUDSPEAKER rotary knob fully ccw.
 Subtask 23-73-00-710-242
-
the message DIRECT PA IN USE goesoff.

On the CAPT Audio Selector Panel:

-
the integral light of the PA rotaryknob goes off.

 B. Test of PA announcement from the cabin.
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the Main Instrument Panel 301VU:
 -turn the LOUDSPEAKER rotary knob fully cw.
 2. On the CAPT Audio Selector Panel:
-push and turn the PA rotary knob fully cw.
3. At the FWD ATTND Station:
-lift the handset from the
cradle.

 -push and hold the PTT and do an announcement.
On the CAPT Audio Selector Panel:
-the integral light in the PA rotaryknob comes on.
On the FWD ATTND handset:
-a dial tone is heard.
 On the FWD AIP 320RH:
 -
the number symbol comes on.

-
the number symbol goes off.

 1EFF : 301-399, 1 23-73-00Page B561 1 1 Aug 01/05R 1 1 1CES 1

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ACTION RESULT -------------------------------------------------------------------------------
-
the message DIRECT PA comes on.

 On the AFT AIPs 320RH and the MID and EXIT AIPs 322RH:

 -
the message DIRECT PA IN USE comes on.

 On the FWD ATTND handset:

 -
the dial tone is off.

 In the cabin, all lavatories and at the MID, EXIT and AFT ATTND stations:
 -a LO-HI-LO tone is heard.
 -
the announcement is heard through the loudspeakers.

 In the cockpit:

 -
the announcement is heard through the handset and the loudspeaker.

 -put the handset back into its  All indications are cancelled.
 cradle.

 On the FWD ATTND handset:
 -lift the handset from the  - a dial tone is heard.
 cradle.

 On the FWD AIP 320RH:
 -the number symbol comes on.
 -push the PA ALL pushbutton  - the number symbol goes off.
 switch.

 -the message PA ALL comes on. On the handset:
 1EFF : 301-399, 1 23-73-00Page B562 1 1 Aug 01/05R 1 1 1CES 1

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ACTION RESULT -------------------------------------------------------------------------------
-push and hold the PTT and do an announcemnent.
 -put the handset back into its cradle.
 -lift the handset from the cradle.
 -push the PA FWD pushbutton switch.
 -
the dial tone stops.

 At the AFT AIPs 320RH and the MID and EXIT AIPs 322RH:

 -
the message PA ALL IN USE comes on.

 In the cabin, all lavatories and at the MID, EXIT and the AFT ATTND stations:
-a LO-HI-LO tone is heard.
 -
　
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