System Maintenance Manual

G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air Page 8-7
190-00915-01 Revision 7
8.1.6 G1000 Backup Path Test
1. Remove power from the displays by pulling the following circuit breakers:
• PFD1 PRI
• PFD1 SEC
• PFD2
• MFD
2. Reboot PFD1, PFD2 and MFD while holding the ENT key on each display (far right key on MFD)
until the words INITIALIZING SYSTEM appear.
3. In configuration mode, go to the GDU Page Group on PFD1.
4. On PFD1, activate the cursor and select PFD1 in the SELECT UNIT field and press ENT.
5. Observe the GRS 77 and GDC 74 DATA indicators in the ARINC 429 window.
6. Verify both indicators are GREEN, indicating the channels are receiving data as shown below:
Figure 8-1, GDU Data Verification (ARINC 429)
7. On PFD1, activate the cursor and select PFD2 in the SELECT UNIT field and press the ENT key.
8. Repeat Steps 5 and 6.
9. On PFD1, activate the cursor and select MFD1 in the SELECT UNIT field and press the ENT key.
10. Repeat Steps 5 and 6.
11. On PFD1, go to the GIA Page Group. Go to the RS-232 / ARINC 429 CONFIG page.
12. Verify that GIA1 is selected in the SELECT UNIT field.
13. 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.
14. Verify all DATA indicators are GREEN, indicating the channels are receiving data as shown in the
following image: