User Guide
Table Of Contents
- 6A.1 Introduction
- 6A.2 Unit Description
- 6A.3 Unit Operation
- Power-up and Fail-safe Operation
- Selecting and Deselecting Keys
- Lighting
- Transceiver Keys
- COM Swap
- Optional COM Muting
- Telephone Interface
- Split COM Function
- PA Function
- Speaker
- Marker Beacon Receiver
- nAvigation Radios
- Entertainment Inputs
- Intercom System (ICS) Isolation
- Volume/Squelch Control
- Master Avionics Squelch (MASQ)
- Digital Clearance Recorder with Playback Capability
- Reversionary Mode
- Cockpit Voice Recorder Interface
- Dual Panel Operation
Garmin G1000 Audio Panel Pilot’s Guide 190-00378-02 Rev. A6A-2
DESCRIPTION
6A.2 UNIT DESCRIPTION
The GMA 1347 features three (3) major groups of keys
as shown in Figure 6A.2.1:
• Communication keys
• Navigation keys
• Intercom system (ICS) keys
Each key is labeled to indicate the name of the func
-
tion. The triangular key annunciator above the keys are
white when illuminated.
The knobs at the bottom of the unit control ICS volume
and squelch threshold levels. The
small knob adjusts the
volume/squelch level for the pilot. The large knob ad-
justs the volume/squelch level for the copilot/passenger.
The red DISPLAY BACKUP button below the dual vol-
ume/squelch knob controls reversionary mode selection.
FRONT PANEL CONTROLS
• Transceiver audio selector keys
(COM1, COM2, COM3)
• Transmitter (audio/mic) selection keys
(COM1 MIC, COM2 MIC, COM3 MIC)
• Split COM key
(COM 1/2)
• Dedicated telephone interface key
(TEL)
• Passenger address key
(PA)
• Speaker key
(SPKR)
• Marker beacon receiver audio select/mute key
(MKR/MUTE)
• Marker beacon receiver high sensitivity key
(HI SENS)
• Aircraft radio audio selector keys
(NAV1, NAV2, ADF, DME, AUX)
• Intercom manual squelch key
(MAN SQ)
• Digital recording playback key
(PLAY)
• Intercom system (ICS) isolation keys
(PILOT, COPLT)
• Volume/squelch knob
(VOL/SQ)
• Reversionary mode button
(DISPLAY BACKUP)