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P/N 11934-S01

3 of 10

Cirrus Design

Section 9

SR20

Supplements

Section 2 - Limitations

Use of auxillary AUDIO IN entertainment input and the optionally
installed XM Radio System is prohibited during takeoff and landing.

Section 3 - Emergency Procedures

In the event of an audio panel power failure, the audio system will
revert to COM 1 for the pilot’s mic and headphones and the pilot will
have transmit and receive capability.

Section 4 - Normal Procedures

Refer to Section 7 - System Description

 in this supplement for a

complete description and operation of the Audio Control Panel.

Section 5 - Performance

No change from basic Handbook.

Section 6 - Weight & Balance

Garmin GMA 340 Audio System: No change from basic Handbook.

Installation of the optional XM Radio System adds the following
optional (Sym = O) equipment at the weight and arm shown in the
following table.

Section 7 - System Description

Power On and Fail-safe Operation

The Audio Control Panel is powered ‘OFF’ when the left inner knob
(PILOT) is at the full CCW (counter-clockwise) position. Rotating the
knob CW (clockwise) activates the unit. CW rotation of knob beyond
the ‘on’ detent increases pilot ICS (intercom system) volume. 

ATA / 
Item

Description

Sym

Qty

Part Number

Unit

Wt

Arm

22-01

XM Receiver

O

1

16665-001

1.7

114.0

Revision 1: 07-18-05

Summary of Contents for GMA 340

Page 1: ...R20 this Supplement is applicable and must be inserted in the Supplements Section Section 9 of the Cirrus Design SR20 Pilot s Operating Handbook Handbook Information in this supplement either adds to...

Page 2: ...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 Button...

Page 3: ...operation of the Audio Control Panel Section 5 Performance No change from basic Handbook Section 6 Weight Balance Garmin GMA 340 Audio System No change from basic Handbook Installation of the optional...

Page 4: ...vigation receiver audio source is selected by depressing NAV1 NAV2 if installed MKR DME if installed or ADF if installed will select that radio or device as the audio source Audio level of navigation...

Page 5: ...e is not available in this installation Speaker Output Pressing the SPKR button will cause the selected airplane radios to be heard over the cabin speaker Speaker output is muted when a COM microphone...

Page 6: ...and pilot or copilot ICS activity will mute Music1 Music2 is not muted When both the PILOT and CREW ICS Isolation mode are not selected Music1 is available to crew and passengers Radio activity and M...

Page 7: ...can adjust the trip level of the VOX squelch to fit the individual voice and microphone this helps eliminate the frustration of clipping the first syllables There is a slight delay after a person sto...

Page 8: ...dio receptions or pilot transmissions CREW Pilot and copilot are connected on one intercom channel and have exclusive access to the aircraft radios They may also listen to Music1 Passengers can contin...

Page 9: ...below Marker Beacon Sensitivity The SENS push button on the left side of the panel is used to set the marker beacon receiver sensitivity The selected sensitivity level is indicated by illumination of...

Page 10: ...from two geosynchronous XM broadcast satellites The audio signal is then sent by wire to the Audio Control Panel s Music1 and Music2 AUDIO INPUT jacks System operation is provided by a hand held wire...

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