At the PCU in the FWD zone: 
-
the announcement is not heard,
-
the music program of the selected channel is heard.
At the PCU in the AFT zone:
-
the music program is cancelled and the announcement is heard on channels and 3 to 14 with the headset.
-
the selected channel comes on, on the PCU channel display.
At the forward AIP:
-
the PA AFT message goes off.
-
the RST message comes on.
-
the # symbol comes on.
-
the # symbol goes off.
On the Fwd Attnd panel 120RH, audio module:
-
the MUSIC ON/OFF integral light on the membrane switch comes on.
-
the selected channel comes on, on the boarding-music channel display.
In the cabin:
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R  - the boarding music is heard from all  
R  the passenger and the lavatory  
R  loudspeakers.  
R  At the selected PCU's:  
R  - the selected music channel is heard.  
R  11. On the Fwd Attnd panel 120RH,  On the Fwd Attnd panel 120RH,  
R  prerecorded announcement  prerecorded announcement section:  
R  section:  
R  - press the membrane switch  
R  ENTER frequently until the  
R  cursor is at MEMO 1 position.  
R  - push the membrane switch '1'  - the MEMO 1 display shows '001'.  
R  and ENTER to set the MEMO 1/  
R  announcement 1.  
R  - the cursor moves to the MEMO 2  
R  display.  
R  - after not many seconds the READY  
R  light comes on.  
R  - push the START ALL membrane  In the cabin:  
R  switch.  - the prerecorded announcement 1 is  
R  heard from all the passenger and the  
R  lavatory loudspeakers.  
R  At the selected PCU's:  
R  - the prerecorded announcement 1 is  
R  heard at all channels with the  
R  headset.  
R  - the selected channel comes on, on the  
R  PCU channel display.  
R  12. At the FWD attendant station:  At the FWD Attendant Indication Panel  
R  (AIP):  
R  - lift the handset from the  - the # symbol comes on.  
R  cradle.
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R  - push and hold the PTT  - the # symbol goes off.  
R  pushbutton switch and speak  
R  into the headset  
R  In the cabin:  
R  - the prerecorded announcement 1 is  
R  cancelled and the announcement from  
R  the FWD attendant station is heard  
R  from all the passenger and the  
R  lavatory loudspeakers.  
R  At the headsets of the selected PCU's:  
R  - the prerecorded announcement 1 is  
R  cancelled and the announcement from  
R  the FWD attendant station is heard at  
R  all channels with the headset.  
R  - the selected channel comes on, on the  
R  PCU channel display.  
R  13. In the cockpit on the handset  At the AIP 320RH:  
R  130RH:  
R  - lift the handset from the  
R  cradle.  
R  - push and hold the PTT  - the PA ALL IN USE message comes on.  
R  pushbutton switch and speak  
R  into the handset.  
R  In the cabin:  
R  - the announcement from the FWD  
R  attendant station is cancelled and  
R  the handset announcement from the  
R  cockpit is heard from all the  
R  passenger and the lavatory  
R  loudspeakers.  
R  At the selected PCU's:  
R  - the announcement from the FWD  
R  attendant station is cancelled and  
R  the handset announcement from the  
R  cockpit is heard on channels 3 to 14  
 
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