Lockheed C-5M, Technical Manual

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NOTE
The Multifunction Display Unit (MFDU) default displays are as follows:
Pilot Left - Nav Display
Pilot Center - PFD Display
Pilot Right - ATC Com Display
Copilot Left - Engine Format
Copilot Center - PFD Display
Copilot Right - NAV Display
Flight Engineer - FE Engine Format
Navigator - Nav Display (provisional)
h. Ensure all MFDU are on and show default displays (Figure 1-27) within approximately 4 minutes. (Defaults only
apply when airplane has weight on wheels.)
i. On airplanes modi
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ed by TO 1C-5-799, ensure GND SW for IRCM DC BUS is open (up).
j. Ensure the following bus lights on the AC ELECTRICAL SYSTEM control panel are off. (Refer to Figure 1-23.)
•
MON BUS 3 OFF (21)
•
MON BUS 2 OFF (25)
NOTE
•
If VIA 1 is not available on any MCDU MENU page, open ground switches on pilot emergency circuit breaker
panel, navigator circuit breaker panel No. 1, and navigator circuit breaker panel No. 2. Wait 1 minute, then
return to Step e.
•
If VIA 2 is not available on any MCDU MENU page within 2 minutes of display of VIA 1, open ground
switches for AVIONICS DC BUS 2A on navigator circuit breaker panel No. 2. Wait 1 minute, then close
ground switches for AVIONICS DC BUS 2A on navigator circuit breaker panel No. 2. Allow 4 minutes for
VIA 2 to restart. Ensure both VIA 1 and VIA 2 have booted before proceeding to Step k.
k. If Embedded Diagnostic System (EDS) is not available, perform Step l through Step o. If EDS is available, proceed to
Step q.
l. Select MX page on any MFDU.
m. Wait a minimum of 1 minute, then toggle right to CLR
¿
eld, toggle down and the text FLD will appear, and select
ENTER.
n. Identify faults in any system 82 (core) or other desired system.
o. Using the ENG/CWA display format on any available MFDU, ensure that none of the following CWA are active:
(1) Cautions - Yellow:
•
VIA 1 FAIL
•
AIU 1 FAIL
•
VIA 2 FAIL
•
AIU 2 FAIL
•
VIA 1 OVERTEMP
TO 1C-5M-2-1
1-22