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737-300/400/500MAINTENANCE MANUAL
2) DADC LEFT
3) ALTM CAPTAIN
(b) P6 Load Control Center - Right
1) ATC 2
2) DADC RIGHT
3) ALTM FIRST OFFICER
S 715-018
(7) Do the ATC System - Operational Test.
F. Code Reception Test
S 865-019
CAUTION:_______DO NOT USE CODES 7500, 7600-7677, 7700-7777 . THESE ARE EMERGENCY CODES.
(1) Set these switches on ATC control panel as follows:
-Altitude Reporting Switch - OFF
-Code Switches - Same as the test set code
-Transponder Select Switch - Applicable ATC System.
NOTE: A strong signal from a nearby ground beacon can make the test
____
results to be incorrect.
S 865-020
(2) Set the code selection on the ATC control panel and the test set to code compliment.
NOTE:____Compliment of the code is 7777 minus the code. This is a test of the full code capability of the transponder.
EXAMPLE: If the code is 0340, its compliment is:
7777 - 0340 = 7437 Compliment
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S 865-021
(3) Push the IDENT switch on the ATC control panel when the mode A flag on the test set is in view.
(a) Make sure the IDENT flag and CODE flag is blinking.
G. Altitude Reporting Test
S 865-022
(1)
On the ATC control panel, set the altitude reporting switch to ON.
S 865-023
(2)
On the test set, set the function selector control to the mode C position.
(a) Make sure the test set shows the mode C flag.
S 865-154
(3) Connect the air data test set to the pitot static system.
NOTE: Follow the procedures of the pitot static system
____ AMM 34-11-00/501 (airplanes without EFIS), or AMM 34-11-01/501 (airplanes with EFIS).
S 865-024
(4)
Adjust the altimeters to 29.92 inches of mercury.
S 865-026
(5)
Use the air data test set and the altitude reporting code list (Fig. 501) and apply a static pressure to get the test altitudes between 0 and 35,000 feet.
NOTE: For each test altitude, set the applicable code on the
____ 476X-3 test set. The test set will show the mode C code flag when the test altitude is supplied by the air data test set.
(a) Make sure the binary code lines (A1 thru C4 and D4) between the transponder and the altitude source are not open or shorted to ground. 1) Make sure the applicable altimeter is in tolerance
(AMM 34-12-00 for airplanes without EFIS), or (AMM 34-12-01 for airplanes with EFIS).
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(b) At each altitude, the difference between the test set and the altimeter is not larger than |125 feet.
NOTE: A D4 pulse check is needed when the test altitude is
____
above 30,800 feet.
The altimeter can be adjusted by |125 feet to get the test set to display the correct altitude. 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 導航 NAVIGATION 3(158)
