Sound Quality. Sound Engineering. 9800 Martel Road Lenoir City, TN 37772 PMA4000 TSO Audio Selector Panel IntelliVox™ Intercom System Installation and Operation Manual FAA TSO C50c US Pat. No. 5, 903, 227 6,493,450 Also includes Non-TSO version, P/N 11941 Document P/N 200-041-0002 Revision 5, March 2007 PS Engineering, Inc. ©2007 Copyright Notice Note: Warranty is not valid unless this product is installed by an Authorized PS Engineering or if a PS Engineering harness is purchased. PS Engineering, Inc.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual Table of Contents Section I GENERAL INFORMATION...................................................................... 1-1 1.1 INTRODUCTION ........................................................................................... 1-1 1.2 SCOPE ............................................................................................................. 1-1 1.3 EQUIPMENT DESCRIPTION ...................................
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual 3.3.5 Internal Recorder System (Part number 11941, only) ................................. 3-4 Section IV- Warranty and Service ........................................................................... 4-1 4.1 Warranty .......................................................................................................... 4-1 4.2 Factory Service ....................................................................
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual Section I GENERAL INFORMATION 1.1 INTRODUCTION The PMA4000 TSO Audio Selector Panel is a right-sized solution for the audio switching needs of light aircraft. By combining basic audio selector panel, with PS Engineering’s revolutionary IntelliVox® intercom, the aircraft owner can have audio panel functionality without an investment in panel space.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual APPROVAL BASIS – FAA- TSO C50c The PMA4000 p/n 11942, Audio Selector Panels are FAA approved under TSO C50c (Audio Amplifiers).
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual Unit PMA4000 TSO PMA4000 w/IRS B. PMA4000 Installation Kit: 250-0041-0001 Part Number 575-004-0005 475-632-0006 625-002-0001 625-002-0004 625-010-0002 425-025-0009 425-025-0010 425-020-5089 425-020-5090 701-015-1501 475-002-0002 625-025-0001 430-400-0028 430-400-0050 200-041-0002 1.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual Section II -Installation 2.1 GENERAL INFORMATION 2.1.1 SCOPE This section provides detailed installation and interconnect instructions for the PS Engineering PMA4000-TSO Series Audio Selector Panel/Intercom System, and PMA4000 w/IRS. Please read this manual carefully before beginning any installation to prevent damage and post installation problems.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual 2.3.4 Connector Assembly The unit connectors are DB25 type. The unit has a male (bottom) a female (top), to prevent incorrect connections. The top connector is generally the output, and the bottom connector is generally the input connections. These are crimp-type connectors. The AMP Contact Crimping Tool, AMP 601966-1 (or MS22520 equiv.), with Positioning Tool 601966-5 must be used to ensure good quality harness. 2.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual 2.4.2 Entertainment Input A single entertainment device (CD player, cassette player, etc.) can be connected to the unit. Install a 1/8-inch stereo jack in a convenient location so that the pilot can plug in the entertainment device into the system.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual CASE II: PTT is in pilot yoke only. This configuration requires a modified external PTT switch plugged into the copilot's microphone jack. (See Appendix A). When the copilot's PTT is pressed, the intercom switches the mic audio from pilot to copilot mic. CASE III: No built in PTT. This requires two built in PTTs to be installed, or modified external PTT switches to be used.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual To use this function, a normally open (NO) momentary switch is installed between the bottom connector P1, pin 11 and aircraft ground. A low-current switch is recommended. A radio signal of more than 1 VRMS is needed to trigger the IRS. Therefore, if the IRS does not seem to be recording, increase the aircraft radio volume slightly. 2.
PS Engineering PMA4000 Series Audio Selector Panel and Intercom System Installation Manual 2.7.1 Operational Checkout 1. Apply power to the aircraft and avionics. 2. Plug headsets into the pilot, copilot and passenger positions. 3. Place the Mic Selector Switch to the Com 1 position. 4. Verify that the C1 light comes on. If the push-button is flashing, stop testing and troubleshoot the microphone PTT installation. A flashing indicator in the COM select button indicates that the key line is grounded. 5.
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual Section III OPERATION GENERAL INFORMATION 3.1 SCOPE This section provides detailed operating instructions for the PS Engineering PMA4000 TSO Audio Selector Panel/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 three sections covering the basic operating areas of the PMA4000 systems.
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual ALL: (Middle Position): All parties will hear the aircraft radio, intercom, and music from entertainment input. However, during any intercom communications, the music volume automatically decreases when SoftMute is active . The music volume increases gradually back to the original level after communications have been completed. 3.2.
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual noise appearing in all four microphones is constantly being sampled. Non-voice signals are blocked. When someone speaks, only their microphone circuit opens, placing their voice on the intercom. The system is designed to block continuous tones, therefore people humming or whistling in monotone may be blocked after a few moments.
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual Table 3-1 Intercom Modes Mode Isolate Pilot Hears A/C Radio Pilot Sidetone (during radio transmission, if provided by aircraft radio) Copilot Hears Copilot and passenger intercom Entertainment Passenger Hears Passenger and Copilot intercom Entertainment All Pilot Copilot A/C Radio Passengers Entertainment Copilot Pilot A/C Radio Passengers Entertainment Passengers Pilot Copilot A/C Radio Entertainm
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation 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- certified avionics shop and authorized PS Engineering dealer. An FAA Form 337 must also be accompanied by the warranty card for this warranty to be in effect.
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual Appendix A External PTT Hook Up Part of the installation includes the installation of PTT (Push To Talk) switches that allow the use of your aircraft radio for communications transmissions. There are three configurations that can be used; you must select the case that best fits your installation. NOTE: Only the person who presses their PTT switch will be heard over the radio.
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual Appendix B- Installation Drawing and Connector Layout 0.950 0.130 0.900 0.160 DIAMETERS: A - 3/16" B - 1/4" C - 3/8" 0.400 A B 0.910 A B B 0.420 C 0.500 0.810 0.250 0.270 Figure 6-1- Hole Configuration Drill 4 x 0.5" holes for push buttons 0.950 0.740 0.290 0.360 D D D A B D A B B C DIAMETERS: A - 3/16" B - 1/4" C - 3/8" D - 1/2" 0.500 0.420 0.810 0.
Pilot Phones Lo Pilot Phone Hi Copilot Phone Lo Copilot Phone Hi Pass 1 & 2 Phones Lo Pass 1 & 2 Phones Hi Pot Wiper Vol Pot Lo Vol Pot Hi Copilot Mic Hi Copilot Mic Aud Lo Copilot Mic PTT Pilot Mic Lo Pilot Mic PTT Pilot Mic Aud Hi Com 1 Mic Aud Hi Com 1 Mic Aud Lo Com 1 PTT Com 2 Mic Aud Lo Com 2 Mic Aud Hi No Connect Com 2 PTT Speaker Output Aircraft Ground Power (14 VDC) Pass 1 Mic Aud Lo Pass 1 Mic Hi Pass 2 Mic Lo Pass 2 Mic Hi PTT ICS Lo PTT ICS Enable Pilot ICS PTT Copilot ICS PTT Music Mute Disabl
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual Appendix C Unit Connector Wiring P1 Bottom Unit Connector Sub-D DB-25 Male on unit Mating connector DB-25 Female P2 Top Connector Sub-D DB-25 Female on unit Mating Connector DB-25 Male Com 1 Audio Hi Com 1 Audio Lo Com 2 Audio Hi Com 2 Audio Lo Note 10 15 ohm, 15 Watt 3A Power In Ground 13 25 Cabin Speaker Audio Hi 12 Pilot Phone Audio Hi Pilot Phone Audio Lo 14 1 Pilot Headphone Jack Copilot
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual Appendix D -Instructions for FAA Form 337 and Continuing Airworthiness Example for FAA Form 337 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 PMA4000 TSO (11942, only) audio panel you may use the following text as a guide.
PS Engineering PMA4000 Series Audio Selector Panel and IntelliVox™ Intercom System Installation Manual Appendix E RTCA DO160D (EUROCAE ED-14) Environmental Qualification Form Nomenclature: Audio Selector Panel/Intercom Part Number:11942 FAA TSO Number: C50c 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 Crash Safety V
