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TB20 MAINTENANCE MANUAL 23 COMMUNICATIONS TB20飞机维护手册 通讯(20)

时间:2011-10-31 12:23来源:蓝天飞行翻译 作者:航空
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jacks.
AHAH
Validity : PMA 7000MS 23-11-00Page 7
(DE) JUN 04
 
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AHAH
Validity : PMA 7000MS 23-11 00Page 8
(DE) NOV 01
 
VHF CAPABILITY
DESCRIPTION AND OPERATION
1. GENERAL
The VHF capability system enables the radiocommunication means and the radionavigation audio signals
(VOR, DME, ADF and MKR) to be operated.
The VHF capability system also ensures the intercom function and certain audio warning signals.
The system consists of :
- an A50 audio control panel,
- a cabin loudspeaker,
- E001-E004, E013-E016 headset connection jacks,
- headset(s) (Option). With BOSE headset
- J81, J82, J21, J22 headset connection plugs,
- headset(s).
All
- a hand microphone.
- an E60 "MUSIC IN" jack,
- an S43 "CREW MUSIC" selector.
The A50 audio control panel ensures the passenger entertainment function.
The A50 audio control panel incorporates the MARKER function — refer to 34-31-00.
The A50 audio control panel is electrically supplied by "BUS 1" bar.
2. LOCATION (Figures 1 and 2)
COMPONENT QTY AREA ACCESS DOOR REFERENCE
A50 audio control panel 1 251C / 23-10-00
Cabin loudspeaker 1 241 / 23-11-00
E001-E004, E013-E016 headset connection jacks / 236 / 23-11-00
J81, J82, J21, J22 headset connection plugs (Option) / 236 / 23-11-00
E60 "MUSIC IN" jack / 251C / 23-11-00

AIAI
Validity : GMA 340 23 11-00Page 1
(DI) JUN 04
 

COMPONENT QTY AREA ACCESS DOOR REFERENCE
S43 "CREW MUSIC" selector / 251C / 23-11-00
Circuit breakers :    
- CB 84 "AUDIO" 1 PL1 / WM
- CB 81 "HEADSETS" (Option) 1 PL1 / WM

3. DESCRIPTION
A. A50 audio control panel (Figure 3) The A50 audio control panel ensures :
- the selection, at the headset and the loudspeaker amplifiers, of the different signals of the radionavigation and radiocommunication systems,
- the selection, for transmission, of one of the radiocommunication systems which equip the aircraft,
- the intercom function for the pilot and the passengers,
- the listening to certain audio warning signals without the possibility to interrupt these audio signals. The equipment front panel features :
- two "PILOT" concentric knobs (1) :
. the inner knob for equipment energization and volume adjustment of the intercom function at pilot station,
. the outer knob for squelch level of the intercom function at pilot station,
 
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