System Maintenance Manual

Page 8-6 G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air
Revision G 190-00682-01
Step
Desired Result
5. Select (depress) the STANDBY BATTERY
switch.
Verify the following:
• STBY Attitude indicator motor is energized as
indicated by the indicator motor and the absence
of flag.
• STBY altimeter vibrator is active as indicated by
vibrator noise.
• STBY attitude, STBY Altimeter, STBY Airspeed
indicators are illuminated full bright.
• Amber “ON” is annunciated full bright on the
STANDBY BATTERY switch.
• White STANDBY BATTERY legend on the
standby battery switch is illuminated full bright.
6. Activate aircraft power by selecting the
BAT switch ON.
7. Ensure that the generator busses are tied
by closing the GEN TIES MAN switch.
Verify the following:
• “ON” annunciation should extinguish on the
STANDBY BATTERY switch.
• “ARM” should be fully illuminated (green) on the
STANDBY BATTERY switch.
• The STBY attitude, STBY altimeter and STBY
airspeed instrument lighting reverts to the aircraft
settings.
• The STBY attitude motor and STBY altimeter
vibrator remain active.
• White STANDBY BATTERY legend on the
standby battery switch remains illuminated.
8. Deselect the STANDBY BATTERY switch
Verify the following:
• “ARM” annunciation extinguishes on the
STANDBY BATTERY switch.
• STBY attitude motor and STBY altimeter vibrator
remain active.
• White STANDBY BATTERY legend on the
standby battery switch remains illuminated.
9. Remove aircraft power by selecting the
BAT switch to “OFF” position.
Verify the following:
• The STBY Attitude motor is deactivated (the
sound of the motor may be present as the gyro
spools down).
• The STBY altimeter vibrator is deactivated.
• The STBY attitude, STBY altimeter, STBY
airspeed and magnetic compass are no longer
illuminated.
• White STANDBY BATTERY legend on the
standby battery switch extinguishes.