A. Do the BITE test of the Cabin Intercommunication Data System (Ref. TASK 23-73-00-740-003).
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ANNOUNCEMENT - MUSIC TAPE REPRODUCER SYSTEM - DESCRIPTION AND OPERATION_______________________________________________________________________
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1. General_______
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The function of the Prerecorded Announcement and Boarding Music (PRAM) Reproducer 10RX is to play prerecorded messages. It also plays boarding music programs on a cassette tape to the passengers through the aircraft passenger address system. The PRAM is controlled by the audio module, which is a part of the Fwd Attnd panel 120RH. It is installed in the cabin at the forward attendant station. The PRAM and the audio module are connected with two ARINC 429 data buses. They go through the Cabin Intercommunication Data System (CIDS) director (Ref. 23-73-00) to receive and transmit control data.
R **ON A/C 106-149, 301-399,
R R R R R R R R R R The function of the Prerecorded Announcement and Boarding Music (PRAM) Reproducer 10RX is to play prerecorded announcement and music programs. The announcement and music programs are transmitted to the passengers through the aircraft passenger address system. The aircraft passenger address system is a part of the Cabin Intercommunication Data System (CIDS) director. The PRAM reproducer 10RX is controlled by the AUDIO page of the Flight Attendant Panel (FAP) 120RH. The FAP 120RH is installed in the cabin at the forward attendant station. The PRAM reproducer 10RX and the FAP 120RH are connected with ARINC 429 data buses. They are connected through the CIDS director (Ref. 23-73-00) to receive and transmit control data.
**ON A/C 151-199, 201-210,
The function of the Prerecorded Announcement and Boarding Music (PRAM) is to play prerecorded announcement and music programs. The announcement and music programs are transmitted to the passengers, through the passenger address system, which is a part of the Cabin Intercommunication Data System (CIDS). The PRAM is controlled from the FWD Attendant Panel 120RH. The panel 120RH is installed in the cabin, at the forward attendant station. The PRAM is connected with ARINC 429 data buses to the CIDS director, to transmit and receive control data.
2. Component Location
__________________
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(Ref. Fig. 001) R
**ON A/C 151-199, 201-210,
(Ref. Fig. 001B)
R **ON A/C 211-299,
R (Ref. Fig. 001C)
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-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA
| | | | DOOR | REF. -------------------------------------------------------------------------------10RX PRERECORDED ANNOUNCEMENT/BOARDING 88VU 128 23-32-34
MUSIC REPRODUCER 120RH ATTENDANT PANEL - FORWARD 221 831 23-73-00
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R (Ref. Fig. 001A)
R -------------------------------------------------------------------------------R FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA R | | | | DOOR | REF. R -------------------------------------------------------------------------------R 10RX PRERECORDED ANNOUNCEMENT/BOARDING 88VU 128 824 23-32-34 R MUSIC REPRODUCER R 120RH FLIGH ATTENDANT PANEL 221 834 23-73-00
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3. System Description__________________
**ON A/C 001-049, 051-099, 101-105,
A. Prerecorded Announcement and Boarding Music Reproducer
(1) The Prerecorded Announcement and Boarding Music (PRAM) Reproducer is installed in the avionics compartment in a 4 MCU (ARINC 600) box. It has a total of four cassette decks. Two are for the prerecorded announcement reproduction and the other two are for the boarding music reproduction. Up to 256 prerecorded announcements are stored on two tapes in the prerecorded announcement reproducer (each minimum 30 s). The PRAM has the capability to produce an emergency announcement in the event of a rapid cabin decompression . An emergency announcement is stored in a Solid State Stored Voice (SSSV). A ground signal from a rapid decompression, triggers the emergency announcement. All functions are remotely controlled from the audio module in the Fwd Attnd panel (120RH) (except the output level of normal and emergency announcements). They are adjustable at the front of the reproducer.
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