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190-00917-00  Rev. A

Garmin GMA 240 Pilot’s Guide

10

GMA 240 Audio Panel

eNTerTAINMeNT INPUTs

The GMA 240 provides two stereo entertainment inputs; MUSIC 1 and 

MUSIC 2.  A MUSIC 1/TEL jack is also located on the GMA 240 front panel.  
The MUSIC 1/TEL jack can accept music or telephone sources.

The MUSIC 1 and MUSIC 2 rear inputs may be wired to either a stereo 

phone jack in a convenient place, or to an audio device in a fixed mount 
(e.g. a GPSMAP 396 dock or a CD player). These inputs are compatible 
with popular portable entertainment devices such as MP3 and CD players.  
The headphone outputs of these devices are plugged into the MUSIC 1 or 
MUSIC 2 jacks.

Press the 

MUSIC

 Key to enable the selected music input to be heard.  

Press again to disable music audio.

Press the 

MUSIC 1-2

 Key to select either the MUSIC 1 or MUSIC 2 input.  

Annunciators above the key indicate which music source is selected.

Either music source may be selected.  The selected source is heard by 

all unless intercom isolation removes the audio.   A music source plugged 
into the GMA 240 front panel MUSIC 1 jack will bypass the MUSIC 1 rear 
input.

MUSIC is soft-muted under certain conditions. Soft-muting refers to the 

temporary reduction of music volume and a gradual return to its original 
level.    This  muting  occurs  during  alerts  (unless  configured  otherwise), 
during  selected  radio  reception  if  the 

RADIO

  Key  is  selected,  during 

intercom operation if the 

ICS

 Key is selected, and any time the 

TEL

 Key is 

selected.

Summary of Contents for Fishfinder 240 Blue

Page 1: ...GMA 240 Pilot s Guide...

Page 2: ...Fax 886 02 2642 9099 Web Site Address www garmin com Except as expressly provided herein no part of this manual may be reproduced copied transmitted disseminated downloaded or stored in any storage m...

Page 3: ...RMINBELIABLEFORANYINCIDENTAL SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES WHETHER RESULTING FROM THE USE MISUSE OR INABILITYTO USETHIS PRODUCT OR FROM DEFECTS INTHE PRODUCT Some states do not allow the e...

Page 4: ...ver and AUX Audio Keys Music On Off Key Intercom Mute Key and Radio Mute Key Pilot ICS Isolation Key Telephone Key Music Audio or Telephone Input Jack Volume Squelch Rotating the Pilot Volume Knob lef...

Page 5: ...ephone key Pressing the TEL Key selects the Telephone interface Pressing again deselects the telephone NAV receiver and AUX keys Pressing a key selects the Nav receiver or AUX audio input Pressing aga...

Page 6: ...nnect tone In addition to radio squelch circuitry MASQTM Master Avionics Squelch processing further reduces ambient noise from the avionics inputs Upon installation the unit may be configured in vario...

Page 7: ...ON and OFF with the avionics master switch The unit may also be turned ON and OFF with the Pilot ICS Volume Knob Rotate the knob clockwise out of the detent to turn ON Rotate the knob counterclockwise...

Page 8: ...tercom audio level Music volume is controlled by pulling the right side Copilot passenger volume control knob and turning it for the desired audio level ICS squelch is adjusted by turning the Pilot si...

Page 9: ...ed Radios Alerts Telephone Pilot Music Copilot Passengers Music Copilot Passengers Music CREW When Crew Isolation is configured and PILOT ISO is selected Selected Radios Alerts Telephone Pilot Copilot...

Page 10: ...MUSIC 2 jacks Press the MUSIC Key to enable the selected music input to be heard Press again to disable music audio Press the MUSIC 1 2 Key to select either the MUSIC 1 or MUSIC 2 input Annunciators...

Page 11: ...tone for radios that do not provide sidetone during transmission This can be selected independently for COM1 COM2 and TEL Crew Isolation ICS isolation for the crew in place of Pilot isolation PILOT IS...

Page 12: ...2 U S A p 503 391 3411 f 503 364 2138 Garmin Europe Ltd Liberty House Bulls Copse Road Hounsdown Business Park Southampton SO40 9RB U K p 44 0870 8501241 f 44 0870 8501251 Garmin Corporation No 68 Jan...

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