190-02692-00 Rev. AGarmin G1000 Pilot’s Guide for the Piper PA-32 Saratoga138
AUDIO PANEL AND CNS
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
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 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 Key is pressed, 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 power application, the following steps aid in maximizing the use of the audio panel as well as preventing
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.
Figure 4-46 Audio Panel Controls
Pilot and Copilot
ICS Isolation Keys
Pilot Volume
or Manual
Squelch
Automatic/Manual
Squelch
Volume
Annunciation
Squelch
Annunciation
Copilot/Passenger
Volume or Manual
Squelch
Setting the Audio Panel during preflight:
1) Verify the PILOT Key and COPLT Key Annunciations are extinguished.
2) Verify manual squelch is set to full open.
3) Turn the PILOT/PASS Knobs clockwise two full turns. This sets the intercom level to max volume (least amount
of attenuation).
4) Adjust radio volume levels (COM, NAV) to a suitable level.
5) Adjust the PILOT/PASS 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.
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