Garmin G1000 Nxi System Maintenance Manual page 291

•
121.190 MHz
•
130.285 MHz
•
131.290 MHz
18. Repeat steps 14 through 17 for the No. 2 COM transceiver (GIA2).
19. On the MFD, select the Aux – System Setup page and change the COM channel
spacing back to 25 kHz.
VOR/LOC/GS Test
Check the VOR, ILS, and Glideslope functions with ramp test equipment. Operate the
equipment according to the test equipment manufacturer's instructions. Adjust the RF signal to
a level adequate to perform the test. Select the appropriate HSI source by using the CDI
softkey.
The PFD HSI does not show a course deviation bar unless a valid VHF NAV
frequency is tuned.
GFC 700 VOR/LOC/GS Test
1. Ensure FD is coupled to PFD1 as indicated by a left pointing arrow next to the AFCS
mode controller XFR button.
2. Simulate a VOR signal on a radial equivalent to the aircraft heading. Tune the NAV 1
and NAV 2 receivers to the simulation frequency.
3. Set the HSI on PFD1 to VOR1 by pressing the CDI softkey until VOR1 is selected. Set
the HSI on PFD2 to VOR2 by pressing the CDI softkey until VOR2 is selected. Rotate
CRS1 and CRS2 knobs to set VOR1 and VOR2 course pointers to aircraft heading.
(CDI Synchronization must be set to OFF on the Aux – System Setup 1 page on the
MFD.)
4. Verify full scale deflection of VOR1 and VOR2 CDI by varying CRS1 and CRS2 selected
course at least 10° left and right. Reset course pointers to aircraft heading.
5. Engage the autopilot and press the NAV key on the AFCS mode controller. Using the
CRS1 knob alter course by 10° to the right. Verify the flight director and aircraft controls
respond by flying to the VOR course. Repeat to the left.
6. Couple FD to PFD2 by pressing the XFR button on the AFCS mode controller. Verify FD
is coupled right as indicated by a right pointing arrow on the AFCS mode controller next
to the XFR button. Repeat step 5 using CRS2 knob while coupled to PFD2.
7. Set CRS1 and CRS2 course pointers to aircraft heading.
8. Simulate a Localizer/Glideslope signal. Tune this signal on NAV 1 and NAV 2 receiver.
Set the PFD1 HSI to LOC1 and PFD2 HSI to LOC2 by pressing CDI softkey until LOC1
and LOC2 is selected. Use the test equipment to center the deviation bars (localizer and
glideslope) on PFD1 and PFD2.
9. Press the APR key on the AFCS mode controller. Verify that the LOC and PIT
annunciations are green and ALTS and GS are white on PFD1 and PFD2. Apply
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
NOTE
Page 278
Revision 1