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Passenger Entertainment System (Video) - Block Diagram R Figure 004B
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Passenger Entertainment System (Video) - Block Diagram R Figure 004C
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The VTR1 12MH and VTR2 13MH replay prerecorded video programs. The video program signal is sent through the SCU 11MH to the HMDU 100MH. The video program sound is connected through the SCU to the PES music Main Multiplexer (MM) 8MK and the CIDS directors 101RH and 102RH. Passengers can hear the video program sound after selection of channel 1 or 2 on the PCU with the related headset. The video program sound which the passengers hear from the cabin loudspeakers is sent through the CIDS. A ground signal from the cabin decompression sensor is connected to the SCU 11MH. If a rapid cabin decompression occurs the SCU 11MH retracts all HMDU 100MH and the PES video is de-energized.
R **ON A/C 051-099, 151-199,
B. Functions The PES video is mainly controlled and operated by the SCU through menu-guided screen indications. Thus a special touch-screen is used. Also the touch-screen is used to preview the selected video program and to control the VTR 1 and VTR 2.
R C. System Test The BITE does an automatic test of the system during power on.
R **ON A/C 106-149, 211-299, 301-399,
B. Functions The PES video is mainly controlled and operated by the SCU. The SCU also controls the operation of the VTR 12MH, the VTR 13MH and the HMDU 100MH.
(1) The tapping units supply the HMDU 100MH directly with electrical power, control data and video signals.
C. System Test The BITE does an automatic test of the system during power on.
R **ON A/C 201-210,
R R R R R R B. Functions The PES video is mainly controlled and operated by the SCU through menu-guided screen indications. The SCU 11MH has a special touch-screen. This touch-screen is used to preview the selected video program . The touch-screen also controls the operation of the VTR 12MH, the VTR 13MH and the HMDU 100MH.
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R (1) The tapping units supply the HMDU 100MH directly with electrical
R power, control data and video signals.
R C. System Test
R The BITE does an automatic test of the system during power on.
R **ON A/C 051-099, 106-149, 151-199, 201-299, 301-399,
4. Power Supply____________
R **ON A/C 051-099,
R (Ref. Fig. 005)
R The normal busbar 210XP- B supplies 115 V AC to the PES video through the
R circuit breakers 21MH, 22MH and 23MH.
R The SCU and the VTR(s) are supplied through the circuit breaker 21MH.
R The HMDUs installed on the LH passenger-compartment side are supplied
R through the circuit breaker 22MH and the related tapping units. The HMDUs
R installed on the RH passenger-compartment side are supplied through the
R circuit breaker 23MH and the related tapping units.
R **ON A/C 106-149, 211-299,
R (Ref. Fig. 005A)
The PES video is supplied with 28VDC through this circuit breaker:
- 20MH - PES/VIDEO/CONTROL/MAIN
The PES video is supplied with 115VAC through these circuit breakers:
- 21MH - PES/VIDEO/CONTROL/VCC
- 22MH - PES/VIDEO/CABIN/LH
- 24MH - PES/VIDEO/CABIN/RH
R **ON A/C 151-199,
R **ON A/C 151-158,
R (Ref. Fig. 005B)
R **ON A/C 159-199,
R (Ref. Fig. 005C)
R 1EFF : 051-099, 106-149, 151-199, 201-299, 1 23-36-00Page 23 1301-399, 1May 01/05 1 1 1CES 1 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM Communications 通讯2(34)
