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PS Engineering PMA8000 Installation And Operaion Manual

Audio selector panel with marker beacon receiver high-fidelity stereo intercom
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9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
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Document P/N 200-890-0000
Revision 9, June 2005
Audio Selector Panel with Marker Beacon Receiver
High-fidelity Stereo Intercom
System Installation and Operation Manual
FAA-Approved TSO C50c, C35d
Patented under one or more of the following;
No. 5,903,277; 6,160,496 and 6,493,450
In certified aircraft, warranty is not valid unless this product is installed by an
Authorized PS Engineering dealer.
PS Engineering, Inc. 2005 ©
Copyright Notice
Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS
Engineering, Inc. is strictly prohibited. For further information contact the Publications Manager at PS Engineering, Inc., 9800
Martel Road, Lenoir City, TN 37772. Phone (865) 988-9800, email contact@ps-engineering.com.

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Summary of Contents for PS Engineering PMA8000

  • Page 1 Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS Engineering, Inc. is strictly prohibited. For further information contact the Publications Manager at PS Engineering, Inc., 9800 Martel Road, Lenoir City, TN 37772. Phone (865) 988-9800, email contact@ps-engineering.com.

  • Page 2: Table Of Contents

    ENSE ARKER VERSION ..........................2-7 DJUSTMENTS ..............2-8 OMMUNICATIONS NTENNA NSTALLATION OTES 2.7.1 ....................2-8 UDIO CTIVE UTPUT PMA8000 P ......................2-9 IN ASSIGNMENTS ....................2-10 NSTALLATION HECKOUT 2.10 ........................2-10 NSTALLATION 2.11 ......................2-10 PERATIONAL HECKOUT 2.11.1 ..................2-10...
  • Page 3 PS Engineering PMA8000 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual 2.11.4 TEL C ......................2-11 HECKOUT 2.11.5 )............2-11 NTERNAL ECORDER HECKOUT PTIONAL 2.12 ........................2-11 INAL NSPECTION Section III OPERATION................... 3-1 SCOPE............................3-1 (1) (EMG-F ) ..............

  • Page 4: Section I General Information

    Option 1 Same as above with Digital Recorder added 050-890-0200 Where the functions are identical to all units, it will be referred to herein as a PMA8000. Otherwise, the applicable units will be specified. EQUIPMENT DESCRIPTION The PMA8000-series is a state of the art audio isolation amplifier and audio selector that contains an auto- matic voice activated (VOX) intercom system.

  • Page 5: Approval Basis

    Intercom squelch is automatic. A 3-light Marker Beacon receiver is integrated in the PMA8000. This provides the necessary Marker Bea- con lights and audio indications necessary for an Instrument Landing System (ILS) approach. A pushbut- ton labeled MKR allows the pilot select high or low sensitivity as well as test and mute modes.
  • Page 6 PS Engineering PMA8000 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual Audio Selector Specifications 510 Ω Audio selector panel input impedance: Input Isolation: -60 dB (min.) Speaker Muting: -60 dB (min.) Speaker Output (into 4 Ω) with no clipping 3 Watts (min.)

  • Page 7: Equipment Supplied

    475-632-0012 #6-32 Clip Nut 475-630-0002 EQUIPMENT REQUIRED BUT NOT SUPPLIED Circuit Breaker: 1 ea; 5 amp PULL TYPE REQUIRED for PMA8000 Speaker, 4 Ω Headphone Jacks (Stereo, as Required) Microphone Jacks (as Required) Headphones, 150 Ω (Stereo), up to 6 as required Microphones, up to 6 as required Marker Antenna (75 MHz, VSWR <1:1.5, and appropriate for the airspeed)

  • Page 8: Section Ii - Installation

    Section 1.6 (B). If any claim is to be made, save the shipping material and contact the freight carrier. Do NOT return units damaged in shipping to PS Engineering. If the unit or ac- cessories show any sign of external shipping damage, contact PS Engineering to arrange for a replacement.

  • Page 9: Audio Panel Tray And Connector Assembly

    There must be at least 13.8 VDC present at the connec- tor, J2 pins 8 & 9, of the PMA8000 for the power supply to work in its designed regulation. Otherwise, it cannot adequately attenuate power line noise.

  • Page 10: Existing Gma340 Installation

    King Radio KX170-series, require a resistive load to prevent damage if their speaker amplifier is not used. Connect the speaker output from the unit to the COM 2 Speaker load input on the PMA8000 ( J1 27 WRT 28). The speaker load is 16 Ω, 3W.

  • Page 11: Transmit Interlock

    Unauthorized use of unapproved cellular telephone devices in aircraft is subject to FCC enforcement action, which may include a $10,000 fine per incident. PS Engineering, Inc. does not endorse using unapproved cellular telephone equipment in flight, and takes no responsibility for the user’s action.

  • Page 12: Public Address Mode

    Public Address Mode By pressing the Mute and SPR pushbuttons at the same time, the PMA8000 will be placed into public ad- dress (PA) mode. In this mode, both Com 1 and Com 2 receive indicators will blink, alerting the pilot that when he presses his PTT switch he will be talking over the cockpit speaker.
  • Page 13 . 2.4.14.1.1 Entertainment muting The PMA8000-system incorporates a "Soft Mute" system. This will mute the entertainment devices during ICS or radio conversation.

  • Page 14: Playback Button Installation

    Marker signal is received. This output is J1, pin 39. Adjustments The PMA8000 is factory adjusted to accommodate the typical requirements for most aircraft configura- tions. There are three adjustments in the top cover that allow the installer to tailor the specific functions.

  • Page 15: Communications Antenna Installation Notes

    It is probable that radio interference will occur in the split mode when the frequencies of the two air- craft radios are adjacent, and/or the antennas are physically close together. PS Engineering makes no expressed or implied warranties regarding the suitability of the PMA8000 in Split Mode.

  • Page 16: Pma8000 Pin Assignments

    PS Engineering PMA8000 Series Audio Selector Panel and Intercom System Installation and Operator’s Manual PMA8000 Pin assignments Function Function Mkr Ant Pilot Phones Lo Mkr Ant Lo Copilot Phones Lo Telephone Audio in Copilot Phones (L) Telephone Lo Copilot Phones (R)

  • Page 17: Post Installation Checkout

    Internal damage will result. 2.11 Operational Checkout 2.11.1 Required Test Equipment In order to return an aircraft to service after installation of the PMA8000, the installer must have access to a Marker Beacon signal generator: IFR NAV401L, NAV402AP, IFR4000 TIC T-30D, T-36C Equivalent test equipment is acceptable as long as the testing requirements can be met.

  • Page 18: 2.11.3 Marker Checkout

    Complete logbook entry, FAA Form 337, weight and balance computation and other documentation as required. 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. 200-890-0000...

  • Page 19: Section Iii Operation

    COM 1 and COM 2 allows selection of the receive audio. The PMA8000 gives priority to the pilot’s PTT. If the copilot is transmitting, and the pilot presses his PTT, the pilot’s microphone will be transferred to the selected com transmitter.

  • Page 20: Swap Mode (Switch From Com 1 To Com 2 Remotely)

    PS Engineering PMA8000 Audio Selector Panel and Intercom System Installation and Operator’s Manual Figure 2 PMA8000 Operating controls NOTE: Placing the PMA8000 in–TEL– The intercom mode pushbutton determines who is on the phone, and who is still on the intercom.

  • Page 21: Split Mode

    Split mode, particularly on adjacent frequencies. PS Engineering makes no warranty about the suitability of Split Mode in all air- craft conditions. Note: Split Mode does not turn off other (Nav, ADF, etc.) selected audio to pilot. However, the copilot will only hear the selected communications receiver.

  • Page 22: Intercom Volume Control (7)

    All passenger headsets are connected in parallel. Therefore, if a monaural headset is plugged in to a PMA8000 Stereo installation, one channel will be shorted. Although no damage to the unit will occur, all passengers will lose one channel, unless they switch to the “MONO” mode on the headset. PS Engineering modifies headsets to add stereo capability, using high-fidelity speakers.

  • Page 23: Telephone

    The audio selector panel has provisions for two separate entertainment input devices. Music 1 feeds the pilot and copilot positions. They operate independently in the PMA8000. The volume control does not af- fect the music level. Music 2 feeds the passengers. Passenger music also operates independently from the crew (music 1).

  • Page 24: Marker Beacon Operation (10)

    In ISO intercom mode, when the PMA8000 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.
  • Page 25 PS Engineering PMA8000 Audio Selector Panel and Intercom System Installation and Operator’s Manual 200-890-0000 Page 3-7 Revision 9, June 2005...

  • Page 26: Section Iv- Warranty And Service

    PS Engineering, Inc. The risk of loss or damage to the product is borne by the party making the shipment, unless the purchaser requests a specific method of shipment. In this case, the purchaser assumes the risk of loss.

  • Page 27: Appendix A External Ptt Hook Up

    PS Engineering PMA8000 Audio Selector Panel and Intercom System Installation and Operator’s 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.

  • Page 28: Appendix B - Pma 8000 Installation Drawings

    PS Engineering PMA8000 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix B – PMA 8000 Installation Drawings 475-013-0001 Lock nut (4 ea) 44-pin connector (2 ea) 475-440-0004 (4 ea) 475-440-0007 (4 ea) Rack back plate Rack 430-890-0050...
  • Page 29 4. Speaker loads may be required on some older transceivers. Consult manufacturer's information. Com 2 Audio Hi Communications COM 2 Speaker load is the only one provided in the PMA8000. Com 2 Lo 5. All shielded wires must be MIL 22750 or 27500. Transceiver #2 Com 2 Mic Audio Hi 6.
  • Page 30 PS Engineering PMA8000 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix D, J2 Connector Interconnect PMA8000 J2 CONNECTOR (Sub-D 44-pin male on tray) Speaker Hi Speaker Lo Notes: 1. All Power, and Ground wires must be #18 gage wire...

  • Page 31: Instructions For Faa Form 337, Audio Panels

    One method of airworthiness approval is through an FAA Form 337, Major Repair and Alteration (Airframe, Power- plant, Propeller, or Appliance) In the case of the PMA8000, you may use the following text as a guide. Installed audio selector and 6-place intercom, PS Engineering PMA8000, part number 050-890-(X) in ( loca- tion ) at station .
  • Page 32 PS Engineering PMA8000 Audio Selector Panel and Intercom System Installation and Operator’s Manual Appendix F RTCA DO160D Environmental Qualification Form Audio Selector Panel/Intercom/Marker Beacon Receiver Part Number: 050-890-( ) FAA TSO Number: C50c, C35d Manufacturer: PS Engineering Incorporated 9800 Martel Road...

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