System Maintenance Manual

G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 5-33
190-00682-01 Revision G
5.6.2 GFC Configuration Alerts (SW Version 0636.03 and Subs)
Failure Message Cause Solution
MANIFEST – GFC software
mismatch. Communication
Halted.
The system has detected an
incorrect software version loaded
in the GSA 8X servos, or the
system has not been able to
detect a serial number from the
GSA 8X servo(s).
NOTE: The software version
loaded to the servo is determined
by the serial number of the GSA
8X unit. When the serial number
is not reported by either the
monitor or motor-control circuit
board, this failure message will be
present.
• Load the correct software. See
Section 3.9 for the Software Loading
procedure.
• If a GSA 8X servo is not showing on
the SYSTEM UPLOAD page after
loading completes, check the
monitor board entry (ex: GSA ROLL
MON, GSA PTCH TRM M) and
motor-control board entry (ex: GSA
ROLL CTL, GSA PTCH TRM C) on
the SYSTEM STATUS page. If the
unit is not reporting serial number for
either or both boards, replace the
servo.
5.6.3 GFC Status Page
The GFC Status page is presented in configuration mode and gives status information regarding the
GFC 700.
Figure 5-6. GFC Status Page
NOTE
Reference Table 3-1 for interpretation of data indicator symbols
GIA STATUS
AP DISCONNECT: Shows the condition of the AP DISC +28 VDC input to the GIAs and servos, which
is required for the Autopilot to operate. A valid data indicator shows the AP DISC switch is closed and
the GFC 700 is activly receiving 28. volts. An invalid indicator box indicates the GIAs and servos are no
longer receiving the +28 VDC AP DISC power (switch open or other fault).
MONITOR/CONTROL BOARD STATUS