System Maintenance Manual

G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 7-7
190-00682-01 Revision F
7.2.2 Landing Gear Aural Alert Check
This check should be conducted in conjunction with the Phase 2 and Phase 4 Landing Gear Retraction,
Warning Horn check, in the existing King Air Maintenance Program.
NOTE
This procedure is applicable only to aircraft equipped with a tone generator as part of the
aircraft audio system. Refer to the appropriate aircraft wiring diagrams to determine if a
tone generator is installed.
This check can be accomplished in conjunction with the Weight on Wheels and Low
Speed Awareness Band Test in Section 7.22.
1. Conduct the Landing Gear Retraction, Warning Horn check as stated in the King Air Model C90
Series Maintenance Manual, listed in Table 1-2.
2. Verify that the aural tone is played through the G1000 audio system and through both cockpit
speakers.
7.2.3 XM Audio Suppression Check for Aircraft with a Tone Generator
NOTE
This procedure is applicable only to aircraft equipped with a tone generator as part of the
aircraft audio system. Refer to the appropriate aircraft wiring diagrams to determine if a
tone generator is installed.
This procedure is applicable only to aircraft that have XM radio subscriptions.
1. Select the AUX – XM RADIO page on the MFD.
2. Plug a set of headphones into the pilot and co-pilot stations and verify that you can hear the XM radio
playing in both channels.
3. Restart PFD1 in configuration mode.
4. Select page 4, Audio Alert Configuration, from the Systems menu by rotating the small FMS knob.
5. Select PLAY for the following audio and verify XM audio is temporarily muted while alert audio is
being played.
• GEAR
• STALL
6. Verify XM audio is temporarily muted in both pilot and co-pilot stations while alert audio is being
played.
7. Restart PFD1 in normal mode.