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Garmin GMA 240 Installation Manual

Also see for GMA 240: Pilot's guideInstallation manual

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Contents
  1. Table Of Contents
  2. general description
  3. technical specifications
  4. reference documents
  5. limited warranty
  6. installation overview
  7. gma 240 mounting
  8. installation procedure
  9. audio shield termination
  10. post installation checkout
  11. configuration adjustments
  12. system interconnects
  13. aircraft power and lighting
  14. configuration pins
  15. audio inputs/outputs and mic keys
Garmin GMA 240 Installation Manual Manual pdf 12 page image
Page 1-4 GMA 240 Installation ManualRev. A 190-00917-01Characteristic SpecificationMusic Functions Music inputs (stereo): 2Music input impedance: 600 Ω (differential)Music gain: -20dB @ min volume, +26dB @ max. volume (typ.)Music input level:<200 mVrms for full power* output @ max musicvolume knob position (typ.)3.5 Vrms max music input levelMusic bandwidth: 20 Hz to 20 kHz @ full power outputMusic distortion: <0.1% THD+N (typ.) @ full power, full bandwidthSpecial Functions: Front panel selection and volume controlFront panel control for muting by radios and ICSMuting by alerts configurable*Full power output refers to 300 mW into 50 Ω (three 150 Ω headsets in parallel eachdriven to 100 mW)Front Panel Mini-Jack FunctionsInput Impedance: 5.1 kΩMusic Input: Auto detection of music source will use jack as Music 1Telephone Input: Auto detection of TEL source will use jack for TELTelephone ring signal is heard without TEL selected1.3.3 Power RequirementsCharacteristic SpecificationInput Voltage Range 11 to 33 VdcPower Input 4.3 W normal operation (310mA @ 13.8 V)7.5 W max. operation (540 mA @ 13.8 V)1.4 Reference DocumentsThe following publications are sources of additional information for installing the GMA 240. Beforeinstalling the unit, the technician should read all referenced materials along with this manual.Part Number Document190-00917-00 GMA 240 Pilot’s Guide190-00917-02 GMA 240 Maintenance Manual
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This manual is suitable for:
GMA 240
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