S 865-025
(2)
Open the 7F10 EIU C circuit breaker on the P7 panel.
S 865-067
(3)
Open the 7F15 EIU R circuit breaker on the P7 panel.
S 865-026
(4)
Close the 414L8 CMC LEFT circuit breaker on the P414 panel.
S 865-027
(5)
Open the 415L39 CMC RIGHT circuit breaker on the P415 panel.
S 735-028
(6)
Do a test of the analog fault discrete and of the CMC interface from the left EIU.
(a)
Put the left IRU into the Ground Test mode from a CDU.
1) Make sure that IRS LEFT comes into view on the main EICAS display for a short time.
(b)
Put the center IRU into the Ground Test mode from a CDU.
1) Make sure that IRS CENTER comes into view on the main EICAS display for a short time.
(c)
Put the right IRU into the Ground Test mode from a CDU.
1) Make sure that IRS RIGHT comes into view on the main EICAS display for a short time.
S 865-029
(7)
Close the 7F10 EIU C circuit breaker on the P7 panel.
(8)
Set the EIU SEL switch on the P2-4 panel to the C position.
(9)
Open the 7F9 EIU L circuit breaker on the P7 panel.
S 865-204
S 865-030
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
34-21-00
ALL ú ú 05A Page 514 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 735-068
(10) Do a test of the analog fault discrete and of the CMC interface from the center EIU.
(a)
Put the left IRU into the Ground Test mode from a CDU.
1) Make sure that IRS LEFT comes into view on the main EICAS display for a short time.
(b)
Put the center IRU into the Ground Test mode from a CDU.
1) Make sure that IRS CENTER comes into view on the main EICAS display for a short time.
(c)
Put the right IRU into the Ground Test mode from a CDU.
1) Make sure that IRS RIGHT comes into view on the main EICAS display for a short time.
S 865-031
(11)
Close the 7F15 EIU R circuit breaker on the P7 panel.
S 865-032
(12)
Set the EIU SEL switch on the P2-4 panel to the R position.
S 865-033
(13)
Open the 7F10 EIU C circuit breaker on the P7 panel.
S 735-034
(14)
Do a test of the analog fault discrete and of the CMC interface from the right EIU.
(a)
Put the left IRU into the Ground Test mode from a CDU.
1) Make sure that IRS LEFT comes into view on the main EICAS display for a short time.
(b)
Put the center IRU into the Ground Test mode from a CDU.
1) Make sure that IRS CENTER comes into view on the main EICAS display for a short time.
(c)
Put the right IRU into the Ground Test mode from a CDU.
1) Make sure that IRS RIGHT comes into view on the main EICAS display for a short time.
G. Right CMC Interface Test
S 865-035
(1)
Close the 415L39 CMC RIGHT circuit breaker on the P415 panel.
(2)
Close the 180D16 CMC-SW circuit breaker on the P180 panel.
(3)
Open the 414L8 CMC LEFT circuit breaker on the P414 panel.
S 865-135
(4)
Put the left IRU into the Ground Test mode from a CDU.
S 865-036
S 865-037
(a) Make sure that IRS LEFT comes into view on the main EICAS display for a short time.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
34-21-00
ALL ú ú 10A Page 515 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 865-136
(5) Put the center IRU into the Ground Test mode from a CDU.
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本文链接地址：747-400 AMM 飞机维护手册 导航 NAVIGATION 1(160)
