Figure 8-1, Gdu Data Verification (Arinc 429) - Garmin G1000 System Maintenance Manual

8.1.6
G1000 Backup Path Test
1. With the G1000 in configuration mode, go to the GDU Page Group on PFD1.
2. On PFD1, activate the cursor and select PFD1 in the SELECT UNIT field and press ENT.
3. Observe the GRS 77 and GDC 74 DATA indicators in the ARINC 429 window.
4. Verify both indicators are GREEN, indicating the channels are receiving data as shown below:

Figure 8-1, GDU Data Verification (ARINC 429)

5. On PFD1, activate the cursor and select PFD2 in the SELECT UNIT field and press the ENT key.
6. Repeat Steps 5 and 6.
7. On PFD1, activate the cursor and select MFD1 in the SELECT UNIT field and press the ENT key.
8. Repeat Steps 5 and 6.
9. On PFD1, go to the GIA Page Group. Go to the RS-232 / ARINC 429 CONFIG page.
10. Verify that GIA1 is selected in the SELECT UNIT field.
11. Observe the data indicators for all configured RS-232 and ARINC 429 channels (except GIA
DEBUG), including the GRS 77 and GDC 74 ARINC 429 channels.
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air Page 8-7
190-00716-01 Revision 1