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TB20 MAINTENANCE MANUAL 23 COMMUNICATIONS TB20飞机维护手册 通讯(21)

时间:2011-10-31 12:23来源:蓝天飞行翻译 作者:航空
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- three pushbuttons (2) to select the radiocommunication systems installed on the aircraft,
- four pushbuttons (3) to select the radionavigation systems installed on the aircraft,
- a "TEST" pushbutton (4) to check, on equipment front panel, the LED type and MKR function indicator lights.
- two "COPILOT" concentric knobs (5) :
• the inner knob for volume control of the intercom function at R.H. front and rear stations,
the outer knob for squelch level of the intercom function at R.H. front and rear stations.
- two "ICS ISOLATION" (6) pushbuttons to select one of the 3 intercom function modes (PILOT, CREW, ALL).
- two "CABIN AUDIO" (7) pushbuttons :
the "PA" pushbutton to select the "PASSENGER ADDRESS" function,
the "SPKR" pushbutton to activate the cabin loudspeaker.
- a "COM 1/2" (8) pushbutton for the separation of the COM function between pilot and R.H. front stations.
- three "COM / MIC" pushbuttons (9) to select during transmission one of the radiocommunication systems which equip the aircraft.
AIAI
Validity : GMA 340 23-11 Page 2
00 (DI) NOV 01
 
A - A50 audio control panel
 
Variante de localisation Alternate location
®
 
VHF capability — Identification and location of components
Figure 1
AIAI
Validity : GMA 340 23-11 00Page 3
(DI) NOV 01
 
  A - Cabin loudspeaker
B - E001-E004 pilot and R.H. front station connection jacks
C - Hand microphone
D - E013-E016 rear station connection jacks
E - E001-E004 pilot and R.H. front station connection jacks and J81, J82 connection plugs (Option)
F - E013-E016 rear station connection jacks and J21, J22 connection plugs (Option)
 

 
AIAI
Validity : GMA 340 23 11 00PUage 4
(Do JN 04
 
1 - "PILOT" concentric knobs
2 - Pushbuttons (Radiocommunication system)
3 - Pushbuttons (Radionavigation systems)
4 - "TEST" pushbutton
5 - "COPILOT" concentric knobs
6 - "ICS ISOLATION" pushbuttons
7 - "CABIN AUDIO" pushbuttons
8 - "COM 1/2" pushbutton
9 - "COM/MIC" pushbuttons
VHF capability - A50 audio control panel
Figure 3
AIAI
Validity : GMA 340 23-11-00Page 5
(DI) JUN 04
 
The push-to-talk switches, the connection jacks, the connection plugs (option) and the cabin loudspeaker are associated to A50 audio control panel.
The A50 audio control panel is electrically supplied by "BUS 1" bar and is protected by CB 84 "AUDIO" circuit breaker.
The A50 audio control panel is mounted in the upper portion of PL30 radio rack.
 
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