9800 Martel Road Lenoir City, TN 37772 www.ps-engineering.com PM A 4 5 0 Document P/N 200-450-0000 Revision 3, November 2014 Audio Selector Panel with Marker Beacon Receiver High-fidelity Stereo Intercom, USB Charging Port System Installation and Operation Manual FAA- TSO C139a, C35d, C71 Patented under one or more of the following; No.
Table of Contents Section I – GENERAL INFORMATION............................... 1-1 1.1 1.2 1.3 1.4 INTRODUCTION............................................................................................................................ 1-1 SCOPE .............................................................................................................................................. 1-1 EQUIPMENT DESCRIPTION..............................................................................................
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.12.3 MARKER CHECKOUT (050-450-0100, ONLY) ............................................................... 2-12 2.12.4 BLUETOOTH CHECKOUT ............................................................................................... 2-12 2.12.5 INTERNAL RECORDER CHECKOUT ................................................................................ 2-12 2.13 FINAL INSPECTION ..............................
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Section I – GENERAL INFORMATION 1.1 INTRODUCTION The PMA450 represents a revolutionary step in cockpit audio control and intercommunications utility. IntelliAudio®, using the USAF patented technology, provides True Dimensional Sound, helping pilots to more easily discern from simultaneous radio receptions.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Instrument Landing System (ILS) approach. A pushbutton labeled MKR allows the pilot select audio on as well as test and mute modes. Marker high sensatvoty is also controlled by this button (see § S/N and above). Below S/N E01151 high sense is switched externally (see §2.6.2 for details. The front panel USB-type connector is available for charging devices, such as iPad or cell phones.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Audio Selector Specifications 510 Audio selector panel input impedance: -60 dB (min.) Input Isolation: -60 dB (min.) Speaker Muting: Speaker Output (into 4 ) with no clipping 3 Watts (min.) 14 VDC: 10 Watts (min.) 28 VDC: 7 (Com 1, Com 2, Nav 1, Nav 2, 3 ea.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual PMA450 Installation Kit: 250-890-0000 Description 1.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Section II - INSTALLATION 2.1 2.1.1 GENERAL INFORMATION SCOPE This section provides detailed installation and interconnection instructions for the PS Engineering PMA450 Audio Selector Panel/Intercom/ with internal Marker Beacon. Please read this manual carefully before beginning any installation to prevent damage and post-installation problems.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.3.3 Audio Panel Mounting Rack Installation Remove the unit from the mounting tray by unscrewing the 3/32" hex-head screw that is in the center of the unit. Use caution to avoid hitting the photo-detector lens. Carefully slide the unit free of the tray. Set the unit aside in a safe location until needed. Install the tray using six clip nuts (475-630-0002), and six FHP 6-32 x ½" screws (475-632-0012).
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Radiated signals can be a factor when low level microphone signals are "bundled" with current carrying power wires. Keep these cables physically separated. It is very important that you use insulated washers to isolate the ground return path from the airframe to all headphone and microphone jacks. 2.4.1.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.4.3 Power The PMA450 is compatible with both 14 and 28 Volt DC systems. A five (5) Amp circuit breaker is required for all installations. Power and ground wires should be #22 connected to J2 Pins 8 and 9. Connect airframe ground to J2 Pin 10 and 11 only. No dropping resistors are required. 2.4.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual back lighting system to work. The photocell mounted in the unit face will automatically adjust the intensity of the push-button annunciator LEDs. 2.4.8 Unswitched inputs J1, pins 31 (Unsw 1), 44 (Unsw 2) 29 (Unsw 3) and J2 pin 15 (Unsw 4) are unswitched, unmuted (by transmitter keying), inputs.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.4.10 Public Address Mode By holding the middle line-select pushbutton for more than one (1) seconds, the PMA450 will be placed into public address (PA) mode. In this mode, the pilot will be talking over the cockpit speaker when he presses his PTT switch. Copilot will still continue on the selected COM radio.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual NO T E Us e t h e lo w l e ve l o utp u t o f a n y ad d it io na l M u si c d e vic e to co n nec t to t h e au d io p a n el. Ma xi mu m s i g na l l e ve l i s 3 VA C p -p . DO NO T u se a sp ea ke r -le v el o u tp u t, t h i s wi l l ca us e i n ter n al d a ma ge i n t he a ud io p a n el.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.7 User Adjustments To access the user adjustment menus, turn the PMA450 off, and then back on. While the version screen is displayed, push and hold the bottom line-select button (there is an indicator bar in the display indicating that a menu is available). This places the unit into the “User Configurable Mode – home screen”.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 1. 2. 3. Switched input #1 J1, Pin 7 wrt Pin 8 (Default ADF) Switched input #2 J1, Pin 21 wrt Pin 22 (Default DME) Switched input #3 J1, Pin 23 wrt Pin 43(Default AUX) NOTE: In PMA 450 -0200 (No Marker) Switched #1 , #2 or #3 can be renamed to MKR for a remote input. The customer will have access to rename. Maximum 9 letters per line and A thru Z & 0 thru 9 will be available.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.10 Wiring Checkout After wiring is complete, verify power is ONLY on pins 8 and 9 of the J2 and airframe ground on connector pins 10 and 11. Failure to do so will cause serious internal damage and void PS Engineering's warranty. 2.11 Unit Installation To install the PMA450, gently slide the unit into the mounting rack until the hold-down screw is engaged.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 15. Verify proper Intercom system operation in the ALL, ISO and CREW modes (see Table 3-1). 16. Verify that the audio selector panel system does not adversely affect any other aircraft system by systematically switching the unit on and off, while monitoring the other avionics and electrical equipment on the aircraft. 2.12.3 Marker Checkout (050-450-0100, only) 1.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Complete documentation that may be required, such as a logbook entry, weight and balance computation and FAA Form 337. Sample text for FAA Form 337, and instructions for continuing airworthiness can be found in Appendix F. Return completed warranty registration application to PS Engineering, or complete online at www.ps-engineering.com. 200-450-0000 Page 2-1 Rev.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Section III OPERATION 3.1 SCOPE This section provides detailed operating instructions for the PS Engineering PMA450, Audio Selector Panel/Marker Beacon Receiver/Intercom Systems. Please read it carefully before using the equipment so that you can take full advantage of its capabilities. This section is divided into sections covering the basic operating areas of the PMA450 systems.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 3.3 Menu Selection (6) The PMA450 uses a Liquid Crystal Display and three line-select buttons to access advanced functionality in a very logical manner. Press the line select key to select a specific item on each menu. Items are toggled on and off by pressing the line select key as well. When navigating the menus, the screen will automatically return to this “home” screen after a period of inactivity.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 3.5.1 Swap Mode (Switch from Com 1 to Com 2 remotely) With an optional yoke mounted, normally open momentary switch, the pilot can change from the current Com transceiver to the other by pressing this switch. To cancel "Swap Mode," either press the yoke mounted switch again, or select a different Com with the XMT buttons. 3.5.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual NOTE: Switched Inputs can be renamed at the configuration set up. See §3.13 for more information. In SPLIT mode, only the pilot will hear selected navigation audio. 3.6 Speaker Amplifier (7) To activate the PMA450 cockpit speaker output, press and hold the bottom line-select button (SPR) for one second or until SPR appears in the display.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual When PA mode is active, all microphones except for the Pilot will be disabled for complete and uninterrupted announcements. The pilot microphone will be heard on the speaker and headsets when the pilot PTT is used. The copilot can continue to use the selected com radio while the pilot will be heard over the speaker.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual MARKER, and turn the small knob to adjust the marker beacon volume. The green volume bar and numerical readout will indicate the receiver volume in this menu. NOTE: marker Volume cannot be turned completely off. NOTE: PMA450, P/N 050-450-0200, without Marker Beacon, will not have a Volume selection. 3.7.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual The outer, larger volume control knob controls intercom volume for the passengers. It has no effect on radio or music levels. When the outer knob is moved, the green volume bar indicator will switch to show the level of the passenger’s intercom volume, reverting to the crew after a few seconds. Adjust the radios (at the radio itself) and intercom volume for a comfortable listening level.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual To enable the Alternate Intercom Mode, press RADIO Intercom: to toggle between Standard and Alternate modes. This state is remembered during power cycles. 3.9 Music and Music Muting The PMA450 has two independent music inputs at the rear connector, and a front panel jack. The PMA450 also has the ability to receive streaming music from a Bluetooth-enabled device which will be connected into Music #1.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 3.9.1 Music Muting The SoftMute™ circuit will mute the music whenever there is conversation on the radio, the intercom, or both, depending on the “Mute” mode selected. When that conversation stops, the music returns to the previous level comfortably, over a second or so. The mute mode functions are controlled through Music Mute Menu which has three modes for each music input. Mute ALL, Karaoke & Radio Mute.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual The pilot can select either music source from the Music distribution menu. 3.10 Bluetooth® connection The PMA450 has a Bluetooth interface. The audio panel is always “discoverable,” so you just need to search for the PMA450 from your Bluetooth-equipped phone or music source. The default access code is 0000, if needed.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual In ISO intercom mode, when the PMA450 is in the TEL mode, the pilot position is in the "Phone Booth." Only the pilot will hear the telephone, and only he will be heard. He will also have access to Com 1 or 2, and will transmit on that radio using the PTT. All selected audio is provided.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 3.13 User Setup menus The PMA450 has several user adjustable functions accessible from a setup menu. Figure 3-9 User Configuration Menu During the unit boot up process, hold the lower line select button until the setup screen appears. Cycle the PMA450 power to exit setup screen. During the unit boot up process, hold the lower line select button until the setup screen appears.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual For a user whom is unfamiliar with the product, this will give them enough time to learn the system. After becoming more familiar the user can speed up the menu screen timeout as desired. Cycle the PMA450 power to exit setup screen. Figure 3-11 Display Timeout Menu 3.14.2 Rename “Switched” Inputs The system is factory set to default as ADF, DME & AUX as shown.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual 200-450-0000 Page 3-14 Rev.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Section IV – Warranty and Service 4.1 Warranty In order for the factory warranty to be valid, the installations in a certified aircraft must be accomplished by an FAA-(or other ICAO agency) certified avionics shop and authorized PS Engineering dealer.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix A – PMA450 Installation Drawings Ground Lug 475-440-0001 (x2) J2 1 15 30 16 31 44 J1 Back plate assy 1 15 30 475-440-0001 (x2) Screw w/washer 16 31 44 475-009-0001 ground lug (x2) Viewed from Back Ground Lug Ground lug detail Rear plate detail (not to scale) 6.31in 1.28in 1.28 in 0.96in 0.36in 0.37in 3.87in 5.53in 6.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix B – J1 Connector Interconnect Com 1 Audio Hi Com 1 Lo Communications Transceiver #1 Com 1 Mic Audio Hi Com 1 Mic Key Com 2 Audio Hi Communications Transceiver #2 Com 2 Lo Com 2 Mic Audio Hi Com 2 Mic Key Nav 1 Audio Hi VHF Nav 1 Nav 1 Audio Lo See Note 9 13 14 15 30 17 18 Nav 2 Audio Hi Nav 2 Audio Lo 19 20 SW Rcvr 1 SW1 Audio Hi 7 8 SW Rcvr 2 SW2 Audio Hi SW2 Audio Lo SW Rcvr 3 SW
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix C – J2 Connector Interconnect PMA450 J2 CONNECTOR (Sub-D 44-pin male on tray) 31 16 1 Pilot Phones (R) Pilot PhonesJack Pilot Phones (L) Pilot Phones Lo 4 3 2 Copilot Phones (R) Copilot PhonesJack Copilot Phones (L) Copilot Phones Lo 44 43 Speaker Hi Cockpit Speaker Speaker Lo Notes: 15 Unswitched Input #4 Hi Unswitched Audio Lo Unswitched Audio #4 Note 13 35 36 Pass. Mic Hi Pass.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix D – Instructions for FAA Form 337 and continuing airworthiness 8.1 Instructions for FAA Form 337, Audio Panels One method of airworthiness approval is through an FAA Form 337, Major Repair and Alteration (Airframe, Powerplant, Propeller, or Appliance) In the case of the PMA450, you may use the following text as a guide.
PS Engineering PMA450 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix E – RTCA DO160G Environmental Qualification Form Audio Selector Panel/Intercom/Marker Beacon Receiver Part Number: 050-450-( ) FAA TSO Number: C139a, C35d, C71 Manufacturer: PS Engineering Incorporated 9800 Martel Road Conditions Temperature and Altitude Low Temperature High Temperature In-flight Loss of Cooling Altitude Decompression Overpressure Temperature variation Humidity Shock Operational Cras
