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UF94200
EFFECTIVITY Page 392
ALL
23 - COMMUNICATIONS
23-36-00 PES VIDEO D/O
CONTENTS:
VSCU
VTR
Tapping Unit
Bite
Visual Displays
Self Examination
TMU23EE01 LEVEL 3
EFFECTIVITY 23-36-00 Page 1
Oct 31/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 393
ALL
PES VIDEO D/O
VSCU
The Video System Control Unit (VSCU) controls the
Passenger video Entertainment System (PES video).
The VSCU receives video and audio signals from the
Video Tape Reproducers (VTR).
It generates a radio frequency signal which contains
the video signals and sends it through the tapping
units to the related display units.
The VSCU operates in the following formats:
- PAL,
- SECAM,
- NTSC.
The VSCU sends the video sounds to the Main Multiplexer
(MM) and to the Cabin Intercommunication Data System
(CIDS) director.
The passengers can hear the video sounds through
headsets connected to the Passenger Control Units
(PCUs) or from the Passenger Address (PA) loudspeakers.
Each PA announcement overrides the PES video sounds
in the related zones and stops the video tape
reproducers.
In case of a rapid cabin decompression, the VSCU stops
the video transmission and controls the retraction of
the overhead monitors installed in the overhead stowage
compartment.
The interface between the optional Cabin and Passenger
Management System (CPMS) and the VSCU allows the
following functions:
- remote control of the video system, camera
control unit and Passenger
- Visual Information System (PVIS),
- display of news and advertisements provided by
the CPMS,
- preview of video programs.
The Passenger Video Information System (PVIS) is an
option that receives information which is processed,
formated and transmitted as video signals to the VSCU.
The VSCU transmits this information to the display
units.
As an option, the video camera converts optical images
into video signals compatible with the video system.
This signal is sent to the VSCU and can be displayed
on the video display units.
The camera can be remotely controlled from the CPMS.
TMU23EE01-T01 LEVEL 3
EFFECTIVITY 23-36-00 Page 2
Oct 31/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 394
ALL
PES VIDEO D/O - SCHEMATIC
TMU23EE01-P01 LEVEL 3
EFFECTIVITY 23-36-00 Page 3
Oct 31/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 395
ALL
PES VIDEO D/O
VTR
The Video Tape Reproducers (VTR) supply audio and video
signals to the VSCU.
The VTRs are remotely controlled from the VSCU.
On the front panel of the VTRs, all the operation
controls are installed.
The following video systems are possible:
- VHS,
- SVHS,
- BETA,
- VIDEO 8,
- High band video 8.
The following signal formats are possible:
- PAL,
- SECAM,
- NTSC.
TAPPING UNIT
The tapping units distribute the video signals to the
display units in each cabin zone.
Each tapping unit can supply a maximum of 2 displays.
Each tapping unit has a pincoded address to give a
unique address to the unit.
This enables the VSCU to control each display unit
individually.
BITE
The BITE is assembled into the video system.
All the PES video BITE data is transmitted through an
ARINC 429 data bus to the MM via the CIDS.
The MM sends this data through an ARINC 429 data bus
to the CFDIU.
The VSCU starts an automatic self test after power up
and a manual self test after transmission of the
Multipurpose Control and Display Unit (MCDU) command.
In CFDIU interactive mode, the BITE is connected to
the Multipurpose Control and Display Unit (MCDU)
through the CFDIU, to show the maintenance data, start
a test or to show the Line Replaceable Unit (LRU)
identification.
The BITE failure transmission to the CFDIU is made
continuously in normal mode, and on request in
interactive mode.
TMU23EE01-T02 LEVEL 3
EFFECTIVITY 23-36-00 Page 4
Oct 31/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 23 COMMUNICATIONS
UF94200
EFFECTIVITY Page 396
ALL
PES VIDEO D/O - SCHEMATIC
TMU23EE01-P02 LEVEL 3
EFFECTIVITY 23-36-00 Page 5
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