BENDIX/KING
KAP 140
Page 3--10
Revision 2, Dec/2002
CS:15574F02
3.3.5 DISCRETE INPUT STATUS SCREEN
Pressing ‘D’ when the Diagnostics Menu screen is displayed will cause the Discrete Inputs Status
screen, shown in Figure 3--6, to be displayed. Pressing the ‘ENTER’ key at this point will return
the user to the Diagnostics Menu screen.
This screen contains the current status of external switches and discrete signals from various
components in the aircraft. It also includes internal status discretes associated with hardware
monitors within the FCC.
System mode: Diagnostic
DISCRETE INPUT STATUS
Description Value
-------------- -------
Gillham Code 032 (1000. ft)
Roll Clutch Engaged NO
AP Disconnect NO
Trim Arm NO
Trim Down NO
Trim Up NO
Stall Warning NO
ILS Engaged NO
Manual Trim Fail NO
Auto Trim Fail NO
Vertical Accel Fail NO
Trim Clutch Engaged NO
Pitch Clutch Engaged NO
Powerup Fail NO
PFT Fail YES
Press CR to exit:
FIGURE 3--6 DISCRETE INPUT STATUS SCREEN
ITEM DESCRIPTION
Gillham Code Encoded altitude used to calibrate pressure sensor
data to yield an absolute altitude. Provided to
autopilot through gray--coded (Gillham) altitude
discrete signals from an encoding altimeter: D4, A1,
A2, A4, B1, B2, B4, C1, C2, C4. Values displayed on
diagnostic screen include a 10 bit binary number
where the bit weighting is ordered as above, and its
representative scaled altitude in feet (when inputs
represent a valid code).
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