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YES button after the last question, the display shows TESTING.
Each of the 8 lower digits come on for 12 seconds, one digit at a
time. This takes approximately 100 seconds.
If there is no fault while in test, the display shows SYSTEM OK.
Then the display shows SYSTEM TEST AND CLEAR?. If you
push the YES button, all faults clear from fault history. If you
push the NO button, the display shows SYSTEM TEST.
If there is a fault during TESTING, the display shows nn EXIST
FAULTS for 2 seconds. Then the display shows EXISTING
FAULTS menu.
If you push the menu button at any time during the system test,
the display shows SYSTEM TEST.
Training Information Point
The acronym DADC refers to air data inertial reference unit. The
acronym SMC refers to the stall management yaw dampener
computer.
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DISPLAY TEST
DISPLAY TEST does a test of all 16 digits of the LED display.
From the GROUND TEST menu, push the YES button. The
display shows DISPLAY TEST. If you push the YES button, the
test starts. Then four digits at a time turn on for 2.5 seconds.
After the test is complete, the display shows DISPLAY TEST.
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SYSTEM STATUS
SYSTEM STATUS has these two-sub menus:
* PRESENT STATUS
* SYSTEM CONFIGURATION (SYSTEM CONFIG).
PRESENT STATUS
PRESENT STATUS shows system parameters. From the
SYSTEM STATUS menu, push the YES button. Then the
display shows PRESENT STATUS. If you push the YES button,
the display shows the first system parameter. To see more
parameters, push the NO or the DOWN arrow button. If there are
no more parameters, the display shows BOTTOM OF LIST for 2
seconds.
This table shows each parameter and what they mean.
PARAMETER MESSAGE
FLT ALT XXXXXXFT Shows current selection of flight altitude
LAND ALT XXXXXXFT Shows current selection of landing
altitude
AUTO/MAN Shows if the system is in Auto or Manual
OFV XXXX DEG OPEN Shows current position of outflow valve
AUTO FAIL Shows if auto fail is present
CAB PRES XX.XXPSI Shows current cabin pressure
CARGO HT VALVE OP (CL) Shows position of the cargo heat valve
L PACK FLOW ON (OFF) Shows status of left air conditioning pack
PARAMETER MESSAGE
R PACK FLOW ON (OFF) Shows status of right air conditioning
pack
SYSTEM CONFIGURATION
SYSTEM CONFIG shows the system configuration. From the
SYSTEM STATUS menu, push the YES button. Then the display
shows PRESENT STATUS. When you push the NO or DOWN
arrow button, the display shows SYSTEM CONFIG. If you push
the YES button, the display shows the first configuration item.
To see more configuration items, push the NO or DOWN arrow
button. If there are no configuration items, the display shows
BOTTOM OF LIST for 2 seconds.
Configuration Items
This table shows each configuration items and what they mean.
CONFIGURATION ITEM MESSAGE
CONTRLR XXXXX HRS Hours of operation on the controller
PNL TIME XXXXX HRS Hours of operation on the control panel
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