(d)
On the tester, make sure the tester display shows between 0074 and 0120.
(e)
On the left RA, release the TEST switch.
(f)
On the tester, set the SUBFRAME to 3.
(g)
On the right RA at the E 5-2 rack, push and hold the TEST switch.
(h)
On the tester, make sure the tester display shows between 0074 and 0120.
(i)
On the right RA, release the test switch.
(j)
On the tester, set the SUBFRAME to 4.
(k)
On the center RA at the E 5-3 rack, push and hold the TEST switch.
(l)
On the tester, make sure the tester display shows between 0074 and 0120.
(m)
Release the test switch on the center RA.
K. Captain's FMC Switch Position Test
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(1)
Do the FMC switch test that follows:
(a)
Make sure the flight management computer system is operational (AMM 34-61-00/501).
(b)
On the tester, set the SUBFRAME to 3 and the WORD to 31.
(c)
Set the Captain's FMC source select switch to the NORM position.
(d)
Make sure the BIT (DISCRETE) 1 and 2 shows a 1.
(e)
Set the captain's FMC source select switch to the ALTN position.
(f)
Make sure the BIT (DISCRETE) 1 shows a 1 and BIT (DISCRETE) 2 shows a 0.
(2)
Set the captain's FMC select switch to the NORM position.
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(3)
Set the FMC and the IRS back to the usual condition.
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L. Captain's IRS Switch Position Test
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(1) Do the IRS switch test that follows:
(a) Make sure the Inertial Reference System (IRS) is operational (AMM 34-21-00/501).
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(b)
On the tester, set the SUBFRAME to 3 and the WORD to 31.
(c)
Set the Captain's IRS source select switch to the NORM position.
(d)
Make sure the BIT (DISCRETE) 3 shows a 1.
(e)
Set the captain's IRS source select switch to ALTN position.
(f)
Make sure the BIT (DISCRETE) 3 shows a 0.
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(2) Set the Captain's IRS source select switch back to the NORM
position.
M. IRS Data Bus Test
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(1) Do the IRS data bus test that follows:
(a)
Make sure the IRS is operational (AMM 34-21-00)
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本文链接地址：757 AMM 飞机维护手册 仪表 CHAPTER 31 - INSTRUMENTS 1(85)
