Honeywell KMA28 operation manual Entertainment Input, Soft Mute and Soft Mute inhibit

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Bendix/King

KMA28

Audio Amplifier/Intercom/Marker Beacon Receiver

3.4.2.3 Entertainment Input

The audio selector panel has provisions for two separate entertainment input devices. They operate independently in the KMA28. The volume control does not affect music level.

While in the ISO (Isolate) mode, the copilot will hear Entertainment 1 while the four pas- sengers will hear Entertainment #2. The pilot will hear Entertainment 1 at a level muted about 95%. In normal operation, whenever a person speaks, or if the aircraft radio be- comes active, the music will automatically mute and then will gradually return to the original listening level when the intercom or radio conversation ceases.

When in the ALL mode, pilot and copilot will hear Entertainment 1 input while all pas- sengers will hear the Entertainment 2 source. While in the CREW mode, pilot and copilot will hear entertainment input #1 while the passengers may listen to entertainment input #2.

3.4.2.4 Soft Mute and Soft Mute inhibit

The Soft Mute feature assures that the aircraft radio transmissions will not be missed due to entertainment playing. When there is radio reception or intercom conversation, the mu- sic level is dropped to a background level. When the radio or intercom traffic ceases, the level gradually returns to normal.

The front panel ICS switch controls muting of entertainment source #1. Pushing this but- ton places the ICS in Karoake (or sing along) mode, which inhibits the soft mute feature. This allows the music to continue uninterrupted by intercom or radio traffic when cockpit workload is appropriate. Pushing the button again will release the mute inhibit function.

The passenger music, source #2, can be placed in the Karaoke mode if a remote switch is installed in the aircraft.

006-10565-0000

3-6

Rev. 0, Sept. 00

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Contents BENDIX/KING Table of Contents Cellular Interface Checkout Introduction Section I General InformationScope Equipment DescriptionTSO Approval Approval BasisTSO Compliance SpecificationsEquipment Supplied Intercom SpecificationsLicense Requirements Equipment Required but not SuppliedEquipment Installation Procedures Section II InstallationGeneral Information Unpacking and Preliminary InspectionConnector Assembly Mounting Rack InstallationCable Harness Wiring NoiseExisting PS Engineering PMA6000 installations Existing KMA-24 InstallationPower Communications Push-to-TalkUnswitched inputs Swap ModeIntercom wiring BacklightingPublic Address function Com 3 AudioMarker Installation Communications Antenna Installation Notes AdjustmentsWireless telecommunications interface Hook Switches KMA 28 Pin Assignments Unit Installation Post Installation CheckoutOperational Checkout Receiver Sensitivity Marker CheckoutCellular Interface Checkout Final InspectionAudio Selector Section III KMA28 OperationKey click Speaker AmplifierPublic Address PA Function Power Switch /Emergency EMG OperationMicrophone Selector Split Mode Swap Mode Switch from Com 1 to Com 2 remotelySplit Mode ICS Telephone ModeIntelliVox VOX-Squelch Intercom SystemMono headsets in Stereo Installation Volume ControlIntercom Modes Soft Mute and Soft Mute inhibit Telephone Operation if equipped with approved system Marker Beacon OperationWill lose intercom capability when it is in use Appendix a Installation Drawings Connector viewed from the rearTray Dimensions in inches Top View Tray Assembly Drawing Bottom Connector, J1 Appendix B Bottom Connector InterconnectJ2 TOP Connector Appendix C Top Connector InterconnectInstructions for FAA Form Instructions for Continuing AirworthinessConditions Section Conducted Tests