• 热门标签

当前位置: 主页 > 航空资料 > 机务资料 >

时间:2010-06-29 14:11来源:蓝天飞行翻译 作者:admin
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

(3) Monitor the altitude display (encoder output). It must increase consecutively. It must
indicate the same altitude as the airplane altimeter ±125 ft.
(4) If the encoder output is out of limits, calibrate the encoder. Refer to the encoder
manufacturers manual.
(5) If the altitude does not increase consecutively, an input code is missing (eg. A1 code is
missing). Use a copy of the SSR automatic pressure (Refer to table A) altitude
transmission code with the wiring diagram (Refer to Chapter 92) to find the data code that
is missing. Remove the transponder. Do a test for logic high (6v) on the faulty code wire.
If you find 6 volts, the transponder is faulty. If you do not find 6 volts, do a continuity test
between the transponder and the encoder. If the wiring is serviceable, replace the
encoder.
DA20-C1 AMM
Navigation
Doc # DA 201-C1
Rev. 7 34-10-00 Page 103
09 Aug 2001
Table A: SSR Automatic Pressure Altitude Transmission Code
ALTITUDE LOGIC OUTPUT
FEET D2 D4 A1 A2 A4 B1 B2 B4 C1 C2 C4
-1000
-900
-800
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
-700
-600
-500
-400
-300
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
-200
-100
0
100
200
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
1
1
0
1
1
1
0
1
1
0
0
0
300
400
500
600
700
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
800
900
1000
1100
1200
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
0
1
1
1
0
1
1
0
0
0
1300
1400
1500
1600
1700
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
1800
1900
2000
2100
2200
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
1
1
1
1
1
0
0
0
1
1
0
1
1
1
0
1
1
0
0
0
2300
2400
2500
2600
2700
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
 
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址:钻石20系列AMM 2(19)