Garmin G1000 Piper PA-46 Matrix - Manual (Page 154)

190-01108-00 Rev. B Garmin G1000 Pilot’s Guide for the Piper PA-46 Mirage/Matrix 140
AUDIO PANEL AND CNS
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EICAS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL FEA
TURES
APPENDICES
INDEX
4.6 AUDIO PANEL PREFLIGHT PROCEDURE
NOTE: If the pilot and/or copilot are using headsets that have a high/low switch or volume control knob,
verify that the switch is in the high position and the volume control on the headsets are at maximum volume
setting. On single-pilot flights, verify that all other headsets are not connected to avoid excess noise in the
audio system.
NOTE: When the MAN SQ is activated, the ICS squelch can be set manually by the pilot and copilot. If
manual squelch is set to full open (SQ annunciated and the knobs turned counterclockwise) background
noise is heard in the ICS system as well as during COM transmissions.
After powering up the avionics system, the following steps will aid in maximizing the use of the Audio Panel
as well as prevent pilot and copilot induced issues. These preflight procedures should be performed each time a
pilot boards the aircraft to insure awareness of all audio levels in the Audio Panel and radios.
Pilot and
Copilot ICS
Isolation Keys
Copilot/Passenger
Volume and
Manual Squelch
Pilot Volume
and Manual
Squelch
Automatic/Manual
Squelch Annunciation
Figure 4-49 Audio Panel Preflight Controls
Setting the Audio Panel during preflight:
1) Verify that the PILOT and COPLT Annunciators are extinguished.
2) Verify manual squelch is set to minimum.
3) Turn the PILOT Knob and COPILOT Knob fully clockwise. This will set the headset intercom audio level to max
volume (least amount of attenuation).
4) Adjust radio volume levels (COM, NAV, etc.) to a suitable level.
5) Adjust the PILOT Knob and COPILOT Knob volume to the desired intercom level.
6) Reset squelch to automatic, or adjust to the appropriate level manually.
Once this procedure has been completed, the pilot and copilot can change settings, keeping in mind the notes
above.
Independent radio volume adjustments made using the PFD controls affect only the audio output for each
radio selected for adjustment. Radio volume adjustment affects both crew positions equally for each radio that
is adjusted.