曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
7) On the circuit breaker panel, open "RM SWITCH" circuit breaker.
8) Set the radio master switch to OFF and then to ON. Make sure the radio equipment are energized, whatever the position of the switch.
9) On the circuit breaker panel, close the "RM SWITCH" circuit breaker.
10) Make sure each radio equipment is connected, via the radio master relay printed circuit, to its related BUS bar — refer to 24-50-00, Distribution diagram - Electrical schematic.
NOTE : Open successively "BUS 1", "BUS 2" and "BUS 3" circuit breakers and identify the de-energized equipment.
11) Close, if necessary, "BUS 1", "BUS 2" and "BUS 3" circuit breakers.
12) Make sure the radio master switch is set to ON.
13) Refer to safety procedure and start the engine. Make sure that during the starting phase, the radio equipment energization is automatically interrupted.
14) Shut down the engine.
WA
Validity : Option Pre-MOD. 151 Standard Post-MOD. 151 P Na goev20012
23 12 06 (BA)
15) Set radio master switch to OFF.
16) Open main switch-breaker.
1 - Side upholstering panel
2 - Locknut
3 - Insulating washer
4 - Insulating washer
5 - Bolt
6 - Printed circuit
7 - Insulator
8 - Insulation panel
Radio master relay U15 printed circuit — Removal /Installation
Figure 201
COM 2 INSTALLATION
DESCRIPTION AND OPERATION
1. GENERAL (Figure 1)
The optional radiocommunication COM 2 installation allows radio transmissions necessary for air navigation. The COM 2 installation includes :
- an A52 VHF-NAV / COMM transceiver,
- an E32 antenna.
The navigation part of the VHF-NAV / COMM transceiver is described in 34-52-00.
The installation also uses the A50 audio control box - refer to 23-11-00.
The COM 2 installation is electrically supplied by "BUS 3" bar.
2. LOCATION (Figures 2 and 3)
COMPONENT QTY AREA ACCESS DOOR REFERENCE
A52 VHF-NAV / COMM transceiver 1 251C / 23-10-00
E32 antenna 1 210 241 23-13-02
Circuit breaker :
- CB 88 "NAV / COM 2" 1 230 232L WM
3. DESCRIPTION A. A52 VHF NAV/COMM. transceiver (Figure 4)
The VHF NAV / COMM transceiver enables air-to-ground or air-to-air communications within the 118.00 MHz to 136.9916 MHz frequency range.
Aircraft with KX 155A or KX 165A
It has the capability of programming up to 32 memory channel frequencies for later recall.
The L.H. side of the front panel includes all the controls necessary for equipment operation in communication mode as well as the display. The front panel consists of :
中国通航网 www.ga.cn
通航翻译 www.aviation.cn
本文链接地址：TB20 MAINTENANCE MANUAL 23 COMMUNICATIONS TB20飞机维护手册 通讯(37)
|
