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P/N 11934-S01
Section 9
Cirrus Design
Supplements
SR20
Figure - 1
Section 1 - General
This supplement provides detailed operating instructions for the
Garmin GMA 340 Audio Selector Panel/Intercom System with internal
Marker Beacon. This supplement covers the basic operating areas of
the Audio Control Panel.
• Power On / Fail-safe Operation
• Audio / Transceiver Selection
• Speaker Output
• Public Address (PA) Function
• Personal Music Inputs
• Intercom (ICS)
• Marker Beacon
1.
Marker Beacon Annunciators
2.
Marker Audio Select Button / LED
3.
Marker Sensitivity Select Button
a.
HI Sensitivity LED
b.
LO Sensitivity LED
4.
Pilot Intercom Squelch (outer knob)
5.
Power / Intercom Volume (inner knob)
6.
Transceiver Audio Select Buttons/
LEDs
7.
Photocell
8.
Receiver Audio Select Buttons / LEDs
9.
Transceiver Audio/Transmit Select
Buttons / LEDs
10. Split COM Button / LED
11. Cabin Audio Select Buttons / LEDs
a.
SPKR, Cabin Speaker
b.
PA, Public Address
12. Intercom Isolation Buttons / LEDs
a.
PILOT Intercom Mode
b.
CREW Intercom Mode
13. Copilot / Passenger Intercom
Squelch (outer knob)
14. Copilot (IN) / Passenger (OUT)
Intercom Volume (inner knob)
15. Indicator Test Button
14
13
12
11
10
9
3
4
5
15
8
7
6
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SR20_FM09_1108
Audio Control Panel
Revision 1: 07-18-05
