N8074T Manuals: Home; About; Contact Us. King KN 64 DME. KMA 20 Audio Panel. Again, this manual is provided for completeness. Bendix/King KMA20 Audio Panel Marker with tray and partial harness. KING KMA 20/ KR 21 AUDIO PANEL INSTALLATION MANUAL.
FEATURES. Compact transistorized, flip-swtich audio control unit providing the functions of marker beacon receiver, isolation amplifier and audio control panel. Isolation amplifier makes possible the combining of all receiver audio inputs into a single cockpit speaker with 40db of isolation between each radio.
Spa-400 – king kma 20 audio panel installation wiring diagram 10-6-2015 spa-400kma20inst.pdf pin 2 to a see note 3 audio panel pin 11 mic audio pin 32 headphone audio pin 23 radio mic key king kma 20 intercom circuit breaker (1 amp) to to intercom spa-400 spa-400 intercom sq on vol to aircraft power buss 12 / 28 vdc point a. Spa-400 – king kma 20 audio panel installation wiring diagram 10-6-2015 spa-400kma20inst.pdf pin 2 to a see note 3 audio panel pin 11 mic audio pin 32 headphone audio pin 23 radio mic key king kma 20 intercom circuit breaker (1 amp) to to intercom spa-400 spa-400 intercom sq on vol to aircraft power buss 12 / 28 vdc point a.
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Models with different features and combinations of marker light presentation, AUTO switch, COMM/NAV/ADF/HF/DME selections (see table below). Models available with white or red lighting (see table below). TSO'd. SPECIFICATIONS Size: 6.2'W x 1.6'H x 6.293'L Weight: 2.3 lbs.
Design: All solid state, no moving parts Frequency (marker): Crystal-controlled at 75MHz TSO Compliance (audio amp): TSO C50b Env. Category DACAAAX Inputs: Standard models accomodats 2 transceivers / 4 external receivers.
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Model accomodates 3 transceivers / 4 external receivers. Input Impedance: 500 ohms Input Isolation: 40db between input channels Input Muting: Audio Muting is 40db or better when a transmitter is keyed Distortion: Less than 10% at rated output Speaker Output (4 ohm): Rated power output is 6.25 watts at the 4 ohms speaker output. With a supply of 27.5vdc, output power capability increases to 8 watts Speaker Output (8ohm): Rated power output is 6.25 watts at the 8 ohms speaker output. With a supply of 27.5vdc, output power capability increases to 8 watts. As part of our promise to provide the most honest, quality service to our customers, Southeast Aerospace adheres to strict guidelines for certification according to the FAA and Original Equipment Manufacturers (OEM).
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While most avionics components do not include a prescribed overhaul procedure in the Maintenance Manual, the FAA has set forth guidelines for the cleaning and inspecting of components as referenced in FAR Part 43.2. Therefore, if a component cannot meet the standards of this Federal Air Regulation in relation to inspection criteria and cleaning potential then it should not be deemed as Overhauled.
Southeast Aerospace does not believe in simply providing words on a tag or maintenance release to represent the condition of a component. SEA stands behind the work and service followed through with each and every FAA 8130-3 maintenance release it provides.
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Until the used market completely dries up, you can still find someone who will sell you a KMA-20. The KMA-20 may have been a cost effective, reliable unit at one time but unfortunately its time has passed. Most older avionics units have become increasingly challenging to repair as the manufacturers discontinue support and cut off the supply of service parts. Likewise, even if you can find a KMA-20 in working condition, it usually has little or no warranty. Instead of continuing to invest your money in obsolete technology and delaying the inevitable, Southeast Aerospace suggests upgrading to the KMA-24.
Investing in the KMA-24 will provide you with an audio panel that includes warranty and support for many years to come.
The PMA7000 series audio panel not only provides a great set of capabilities, it also lends itself nicely for upgrading an existing Bendix/King KMA24 audio panel. The PMA7000B is KMA24 pin compatible, making the cost of the upgrading less expensive. None of the existing wires going to the KMA24 have to be disturb, only a new intercom wire harness has to be built, reducing the amount of installation time.
With our renown 6-place IntelliVox® automatic Voice Operated Relay (VOX) intercom system, adjusting a squelch circuit is a thing of the past. And with over 20+ years of field experience, find out just how easy it is to forget you are even using an intercom, it just works! No more clipping or missed syllables.
The PMA7000B provide 3-com capability with the option to easily convert Com 3 to a full duplex cellular telephone interface. It also has our pioneered 'Split Mode'. This allows the pilot to be on Com 1 while the copilot is on Com 2, freeing up the pilot to work with ATC while the copilot gets weather information or finds out just where the lowest fuel cost is on the field while still in the air.
Check list of capabilities:
- IntelliVox® automatic VOX system with individually gated microphone
- 6 Place hi-fi stereo intercom with Soft Mute™
- 2 music mute modes: Mute On and Mute Off (ICS button)
- Built-in Marker Beacon Receiver
- Hardwired Satelite Telephone connection (in lieu of Com 3) which provides provides dedicated On/Off hook switches for unprecedented flexibility
- Split mode for dual audio panel capability
- 2 hi-fidelity stereo music source inputs
- 3 isolation modes - Pilot Isolate, All, and Crew
- 4 unswitched inputs
- Selectable music muting for passengers
- Selectable special intercom mode with 'Alternate Intercom Mode'
- RAM (Radio Active Mute) eliminates constant back ground noise from radio static
- 2-year Pro-Support Warranty
The only knob that is on the panel is a concentric volume control for the Crew and Passengers intercom volume. The all push button controls of the PMA7000B allows for easy selection of Coms and other Nav aids.
The PMA7000B has four un-switched and un-muted inputs. This adds flexibility when installed with today's advanced warning systems, like Skywatch or TAWS.
Here are the steps it takes to replace a KMA24 with a PMA7000B:
- Step 1 - remove KMA24 from tray
- Step 2 - remove the connector from KMA24 tray
- Step 3- remove tray
- Step 4 - install PMA7000B tray
- Step 5 - install connector in PMA7000B tray
- Step 6 - install PMA7000B into tray
BUT.........
You will not have any intercom functions until that portion of the install is completed.
That's why there is second connector. This connector must be wired by your avionics shop that will provide all of the intercom functions, telephone interface, and music inputs.
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The PMA7000B is plug and play with the original PMA7000M-S, the PMA6000M-S, and the KMA28.