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A70551
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MAINTENANCE MANUAL
NO MESSAGE PROVIDED, TEST DOES NOT ADVANCE FOR FAULT CONDITION
Ground Test - LRU - 04 MCP (Steps 13-20)
Figure 19 (Sheet 2)
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MAINTENANCE MANUAL
(22) GUN 051; Ground Test - LRU - 04 MCP (Steps 19-24) (Fig. 20)
(a) MCP Test Steps 19-24 Description
1) For test steps 19 and on, whether the results are correct or not, the operator must press the YES/ADV switch to advance to the next test.
2) Step 19 - Action message 04 PUSH IAS/MACH SEL SW instructs the operator to push the IAS/MACH SEL switch. The CPU verifies that the AIM label 356, word 6, bit 11 is set to logic one. The CPU advances to the next test step.
3) Step 20 - Action message 04 TURN IAS/MACH CCW - DSPLY DEC? instructs the operator to rotate the indicated airspeed/mach display control counterclockwise, and verify that the display decreases in value.
4) Step 21 - Action message 04 TURN IAS/MACH CW - DSPLY INC? instructs the operator to rotate the indicated airspeed/mach display control clockwise, and verify that the display increases in value.
5) Step 22 - Action message 04 PUSH IAS/MACH - DSPLY BLANK? instructs the operator to push the IAS/MACH SEL switch, and verify that the IAS/MACH display window goes blank.
6) Step 23 - Action message 04 TURN HDG COW - DSPLAY DEC? instructs the operator to rotate the heading display control counterclockwise, and verify that the display decreases in value.
7) Step 24 - Action message 04 TURN HDG CW DSPLY INC? instructs the operator to rotate the heading display control clockwise, and verify that the display increases in value.
(23) GUN 001-050, 052-999; Ground Test - LRU - 04 MCP (Steps 21-26) (Fig. 20)
(a) MCP Test Steps 21-26 Description
1) For test steps 21 and on, whether the results are correct or not, the operator must press the YES/ADV switch to advance to the next test.
2) Step 21 - Action message 04 PUSH IAS/MACH SEL SW instructs the operator to push the IAS/MACH SEL switch. The CPU verifies that the AIM label 356, word 6, bit 11 is set to logic one. The CPU advances to the next test step.
3) Step 22 - Action message 04 TURN IAS/MACH CCW - DSPLY DEC? instructs the operator to rotate the indicated airspeed/mach display control counterclockwise, and verify that the display decreases in value.
4) Step 23 - Action message 04 TURN IAS/MACH CW - DSPLY INC? instructs the operator to rotate the indicated airspeed/mach display control clockwise, and verify that the display increases in value.
5) Step 24 - Action message 04 PUSH IAS/MACH - DSPLY BLANK? instructs the operator to push the IAS/MACH SEL switch and verify that the IAS/MACH display window goes blank.
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MAINTENANCE MANUAL
INDICATED INDICATED
AIRSPEED/MACH AIRSPEED/MACH HEADING DISPLAY
SELECT SWITCH DISPLAY CONTROL CONTROL
ACTION/INFORMATIVE
FAIL
MCDP TEST REQUIREMENTSTEP MESSAGE MESSAGE
19. PROVIDE ACTION MESSAGE AND ADVANCE TO NEXT STEP WHEN ON 20. PROVIDE ACTION MESSAGE AND VERIFY DISPLAY DECREASES 21. PROVIDE ACTION MESSAGE AND VERIFY DISPLAY INCREASES 22. PROVIDE ACTION MESSAGE AND VERIFY DISPLAY BLANKS 23. PROVIDE ACTION MESSAGE AND VERIFY DISPLAY DECREASES 24. PROVIDE ACTION MESSAGE AND VERIFY DISPLAY INCREASES STATE OF IAS/MACH SELECT SWITCH VERIFIED OR -DSPLY BLANK? SEL SW CCW-DSPLY DEC? CW-DSPLY INC? CCW-DSPLY DEC? CW-DSPLY INC? 04 PUSH IAS/MACH 04 TURN HDG 04 TURN HDG 04 PUSH IAS/MACH 04 TURN IAS/MACH 04 TURN IAS/MACH 1
ADVANCE TO NEXT STEP FOR YES/ADV
1 NO MESSAGE PROVIDED, TEST DOES NOT ADVANCE FOR FAULT CONDITION 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 自动飞行 AUTOFLIGHT 2(177)
