Page 2 - Table of Contents; PS E
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page i Rev. 0, Sept. 2000 Table of Contents 1 SECTION I GENERAL INFORMATION ......................................................................... 1-1 1.1 INTRODUCTION....................................................
Page 3 - ii; FAA F
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page ii Rev. 0, Sept. 2000 2.11.1 O PERATIONAL C HECKOUT ...................................................................................... 2-10 2.11.2 R ECEIVER S ENSITIVITY ...........................................
Page 4 - Section I GENERAL INFORMATION; INTRODUCTION; EQUIPMENT DESCRIPTION; Warning
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 1-1 Rev. 0, Sept. 2000 Section I GENERAL INFORMATION 1.1 INTRODUCTION The KMA 28 represents the next step in cockpit audio control and intercommunications.Using proprietary IntelliVox® design, this unit eliminates ...
Page 5 - circuitry that eliminates manual adjustments. The system; TSO Approval
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 1-2 Rev. 0, Sept. 2000 A six-station voice activated (VOX) intercom is included in the KMA 28. This systemhas the advanced IntelliVox® circuitry that eliminates manual adjustments. The system contains six separate ...
Page 6 - SPECIFICATIONS; TSO COMPLIANCE; Audio Selector Specifications
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 1-3 Rev. 0, Sept. 2000 1.5 SPECIFICATIONS TSO COMPLIANCE Marker Beacon : C35d, Class A Audio Selector/Intercom : C50c, Class A APPLICABLE DOCUMENTS: RTCA/DO-214RTCA/DO-143RTCA/DO-160CRTCA/DO-178B ENVIRONMENTAL Qual...
Page 7 - EQUIPMENT SUPPLIED
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 1-4 Rev. 0, Sept. 2000 Intercom Specifications Intercom Positions : 6 places (with individual Intelli VOX® circuits) Music Inputs : 2 (Stereo) Music Muting : >-30 dB "Soft Mute" when Com or intercom acti...
Page 8 - EQUIPMENT REQUIRED BUT NOT SUPPLIED; LICENSE REQUIREMENTS
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 1-5 Rev. 0, Sept. 2000 1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED a) Circuit Breaker: 1 ea. 3 amp b) Speaker, 4 Ω c) Headphone Jacks (Stereo, as Required) d) Microphone Jacks (as Required) e) Headphones, 150 Ω (Stereo...
Page 9 - Section II - Installation; INFORMATION; Unpacking and Preliminary Inspection; Requirements
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-1 Rev. 0, Sept. 2000 Section II - Installation 2.1 GENERAL INFORMATION 2.1.1 SCOPE This section provides detailed installation and interconnect instructions for the Honey-well, Inc. KMA28 Audio Selector Panel/Int...
Page 10 - Assembly; Cable Harness Wiring
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-2 Rev. 0, Sept. 2000 2.3.3 Mounting Rack Installation Set the unit aside in a safe location until needed. Install the tray using six FHP 6-32 x ½"screws. The audio selector panel must be supported at front an...
Page 11 - all; headphone and microphone jacks.; Existing PS Engineering PMA6000 installations; Interlock
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-3 Rev. 0, Sept. 2000 that you use insulated washers to isolate the ground return path from the airframe to all headphone and microphone jacks. 2.4.2 Existing KMA-24 Installation If the installation replaces a KMA...
Page 12 - Mode; inputs can be used for altimeter DH; N O T E; : U s e t h e l o w l e v e l o u t p u t o f a n y e n t e r t a i n m e n t d e v i c e t o c o n n e c t t o; V A C; u s e a s p e a k e r - l e v e l o u t p u t , t h i s w i l l c a u s e i n t e r n a l d a m a g e i n t h e
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-4 Rev. 0, Sept. 2000 2.4.7 "Swap" Mode When a momentary, normally open, push-button switch is connected between pin 10 onthe top connector and aircraft ground, the user can switch between Com 1 and 2 by d...
Page 13 - All entertainment devices must be switched; off; for both takeoff and landing.
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-5 Rev. 0, Sept. 2000 in the entertainment devices into the system. The audio signal at the entertainment inputmust be a minimum of 500 mV P-P per channel for optimum music performance. All entertainment devices m...
Page 14 - Connecting pin U of the KMA 28 of J2 to ground will force the
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-6 Rev. 0, Sept. 2000 pilot’s PTT is activated, his voice is heard over the speaker. The copilot can continue touse the selected com. We recommend installing a toggle switch to connect the cabin speaker output (pi...
Page 15 - Front of Unit; Communications Antenna Installation Notes; of the KMA 28 in Split Mode.
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-7 Rev. 0, Sept. 2000 2.6 Adjustments The KMA 28 is factory adjusted to accommodate the typical requirements for most air-craft configurations. There are five adjustments however, that will allow the installer tot...
Page 16 - Switches
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-8 Rev. 0, Sept. 2000 connected to pin W of the J3 connector. On the AirCell interface diagram these are listedas data/fax lines, but they are used for voice interface in this case. Use a 2-conductor with shield c...
Page 17 - KMA 28 Pin Assignments
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-9 Rev. 0, Sept. 2000 2.9 KMA 28 Pin Assignments Pilot Phone Audio Hi (Left) Copilot Phone Audio (Lt) Copilot Phone Audio Lo Copilot Phone Audio (Rt) Pass 1 Mic Audio Hi Pass 1 Mic Audio Lo Pass 2 Mic Audio Lo Pas...
Page 18 - Post Installation Checkout; W a r n i n g
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-10 Rev. 0, Sept. 2000 2.10 Post Installation Checkout After wiring is complete, verify power is ONLY on pin 20 of the J1 (bottom connector),and airframe ground on bottom connector pin Z. Failure to do so will cau...
Page 19 - Checkout
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Page 2-11 Rev. 0, Sept. 2000 15. Verify that the audio selector panel system does not adversely affect any other aircraftsystem by systematically switching the unit on and off, while monitoring the otheravionics and ele...
Page 20 - Section III KMA28 OPERATION; Selector; Amplifier
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-1 Rev. 0, Sept. 00 Section III KMA28 OPERATION GENERAL INFORMATION KMA28 controls 3.1 Audio Selector Receiver audio is selected through two momentary and six latched, push-button, backlitswitches. Com 1 and Com 2 are ...
Page 21 - Unit power is turned on and off by pushing the volume knob; Com; always
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-2 Rev. 0, Sept. 00 3.1.3 Public Address (PA) Function The KMA 28 has a public address capability when an optional external PA switch is in-stalled. When this switch is put into the PA position, the pilot’s microphone ...
Page 22 - Turning the rotary switch to C; N o t e; button in Split Mode will acti-
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-3 Rev. 0, Sept. 00 3.3.1 Swap Mode (Switch from Com 1 to Com 2 remotely) With an optional yoke mounted, momentary switch, the pilot can change from the currentCom transceiver to the other by depressing this switch. Wh...
Page 23 - System
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-4 Rev. 0, Sept. 00 headphones on the cellphone. The pilot PTT will switch the pilot mic to the COM 1, andallow continued aircraft communications as well. NOTE: Placing the mic selector switch in the TEL position will ...
Page 24 - path. Moving your head through a vent air stream may cause the; Control; Anytime the KMA28 is in either the C
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-5 Rev. 0, Sept. 00 path. Moving your head through a vent air stream may cause the IntelliVox ® to open momentarily. This is normal. For optimum microphone performance, Honeywell recommends installation of a Micro-phon...
Page 25 - When in the A; sengers will hear the Entertainment 2 source. While in the C; mode, pilot and copilot
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-6 Rev. 0, Sept. 00 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 musicleve...
Page 26 - Table 3-1 Intercom Modes; Marker Beacon Operation; about a mile out. Then select the “L; ” sensitivity to give you a more accurate location
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-7 Rev. 0, Sept. 00 Table 3-1 Intercom Modes Mode Pilot Hears Copilot Hears Passenger Hears Telephone Comments Isolate A/C Radios Pilot Sidetone (during radio transmis-sion) Entertainment 1 isMuted Copilot and passenge...
Page 27 - ALL; will lose intercom capability when it is in use.
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 3-8 Rev. 0, Sept. 00 When the intercom is in ALL mode, the pilot can speak on the phone only if the mic se- lector switch is in TEL position. All intercom positions will hear the telephone conversa- tion. Anyone who pla...
Page 28 - Appendix A – Installation Drawings; Cutout size for front mount installation; Connector viewed from the rear; Cutout size for rear mount installation
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Appendix A Rev. 0, Sept. 00 Appendix A – Installation Drawings 6.32in (160.1 mm) Cutout size for front mount installation 1.35 in(34.29 mm) Weight: 1.5 lb with tray and connectors ( .68 kg) J1 (bottom) J2 (top) Z Y X W ...
Page 29 - Figure 4-1 Tray Dimensions in inches
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Appendix A Rev. 0, Sept. 00 211 233 231 223 133 111 123 113 6.37 6.28 C 0.35 0.60 1.31 0.65 1.25 5.25 0.80 0.65 0.75 0.11 6.95 Figure 4-1 Tray Dimensions in inches
Page 30 - Top View
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Appendix A Rev. 0, Sept. 00 Top View 5.94 in 7.48 in 6.21 in 6.28 1.25 1.35 Figure 4-2 Unit External Dimensions in inches
Page 31 - Figure 4-3 Tray Assembly Drawing
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Appendix A Rev. 0, Sept. 00 Figure 4-3 Tray Assembly Drawing
Page 32 - Appendix B Bottom Connector Interconnect
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Appendix B Rev. 0, Sept. 2000 Appendix B Bottom Connector Interconnect Com 1 Audio Hi Com 1 Mic Key Com 1 Lo Communications Transceiver #1 Communications Transceiver #2 Nav 1 Audio Hi NAV 1 Audio Lo VHF Nav 1 Nav 2 Audi...
Page 33 - Appendix C Top Connector Interconnect
Bendix/King KMA28 Audio Amplifier/Intercom/Marker Beacon Receiver 006-10565-0000 Appendix C Rev. 0, Sept. 2000 Appendix C Top Connector Interconnect U 19 10 W 20X21Y22Z 1 4D 1615T Notes: 23B Copilot Phones (L) Copilot Phones (R) Copilot Phones Lo Pilot Phones (L) -see bottom connector. 1211N Pass. P...
Page 34 - Instructions for FAA Form 337; Instructions for Continuing Airworthiness,; Sample ICA Checklist for KMA28:
006-10565-0000 Appendix D Rev. 0, Sept. 2000 Appendix D- Instructions for FAA Form 337 and ContinuingAirworthiness 7.1 Instructions for FAA Form 337 One method of airworthiness approval is through an FAA Form 337, Major Repair and Alteration (Air- frame, Powerplant, Propeller, or Appliance) In the c...
Page 35 - Audio Selector Panel/Intercom/Marker Beacon Receiver; Conditions
006-10565-0000 Appendix E Rev. 0, Sept. 2000 Appendix E RTCA DO160C (EUROCAE ED-14) EnvironmentalQualification Form Audio Selector Panel/Intercom/Marker Beacon Receiver Part Number: 7000M-S FAA TSO Number: C50c, C35d Class A, JTSO 2C35d and JTSO C50c Manufacturer: PS Engineering Incorporated 9800 Ma...
