PS Engineering PMA6000B User Manual
9800 Martel Road
Lenoir City, TN 37772
www.ps-engineering.com
PMA6000B
Audio Selector Panel with Intercom System
and
Marker Beacon Receiver
Installation and Operation Manual
Flying never sounded so good™
FAA-Approved TSO C35d TSO C50c
EASA ETSO 2C35d, ETSO C50c
Document P/N 200-066-0200
Patent No. 5,903,227 & 6,160,496
PS Engineering, Inc. 2013 ©
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
Rev 6,
February 2013
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page ii Rev 6, Feb. 2013
Table of Contents
Section I GENERAL INFORMATION................................................................................................ 1-1
1.1 INTRODUCTION............................................................................................................... 1-1
1.2 SCOPE ............................................................................................................................... 1-1
1.3 EQUIPMENT DESCRIPTION............................................................................................ 1-1
1.4 APPROVAL BASIS - FAA................................................................................................. 1-2
1.5 SPECIFICATIONS............................................................................................................. 1-2
1.6 EQUIPMENT SUPPLIED................................................................................................... 1-3
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED ............................................................. 1-3
1.8 LICENSE REQUIREMENTS ............................................................................................. 1-3
Section II -Installation .......................................................................................................................... 2-1
2.1 GENERAL INFORMATION.............................................................................................. 2-1
2.1.1 SCOPE........................................................................................................................... 2-1
2.2 Unpacking and Preliminary Inspection................................................................................ 2-1
2.3 Equipment Installation Procedures...................................................................................... 2-1
2.3.1 Cooling Requirements .................................................................................................... 2-1
2.3.2 Mounting Requirements ................................................................................................. 2-2
2.3.3 Mounting Rack Installation ............................................................................................ 2-2
2.4 Cable Harness Wiring ......................................................................................................... 2-2
2.4.1 Noise.............................................................................................................................. 2-3
2.4.2 Entertainment Input ....................................................................................................... 2-3
2.4.3 PMA6000B Pin assignments .......................................................................................... 2-4
2.4.4 External Push-to-Talk .................................................................................................... 2-5
2.4.5 Transmit Interlock.......................................................................................................... 2-5
2.4.6 Power ............................................................................................................................. 2-5
2.4.7 "Swap" Mode ................................................................................................................. 2-5
2.4.8 Backlighting................................................................................................................... 2-5
2.4.9 Middle Marker Sense ..................................................................................................... 2-7
2.4.10 Unswitched Inputs ..................................................................................................... 2-7
2.4.11 Intercom .................................................................................................................... 2-7
2.5 Adjustments........................................................................................................................ 2-7
2.6 Marker Antenna Installation ............................................................................................... 2-8
2.7 Communications Antenna Installation Notes....................................................................... 2-8
2.8 Unit Installation.................................................................................................................. 2-8
2.9 Post Installation Checkout................................................................................................... 2-8
2.9.1 Required Test Equipment ............................................................................................... 2-8
2.9.2 Power Test ..................................................................................................................... 2-8
2.9.3 Marker Checkout............................................................................................................ 2-9
2.10 Final Inspection. ................................................................................................................. 2-9
Section III OPERATION................................................................................................................... 3-1
3.1 GENERAL INFORMATION.............................................................................................. 3-1
3.2 Power, Fail Safe Operation (1) ............................................................................................ 3-1
3.3 Volume Control (2)............................................................................................................. 3-2
3.4 Audio Selector (3)............................................................................................................... 3-2
3.5 Transmit selection (4) ......................................................................................................... 3-2
3.5.1 Swap Mode (Switch from Com 1 to Com 2 remotely) ..................................................... 3-3
3.5.2 Split Mode...................................................................................................................... 3-3
3.6 Speaker Amplifier (5) ......................................................................................................... 3-3
3.7 Intercom Operation ............................................................................................................. 3-3
3.7.1 Adjusting the VOX-Squelch control (6).......................................................................... 3-3
2.3.4 Connector Assembly...........................................................
............................................. 2-2
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page iii Rev 6, Feb. 2013
3.7.2 Intercom Modes (6) ........................................................................................................ 3-3
3.7.3 Entertainment Input ....................................................................................................... 3-4
3.7.4 Soft Mute ....................................................................................................................... 3-4
3.8 Marker Beacon (7) .............................................................................................................. 3-4
Section IV- Warranty and Service...................................................................................................... 4-1
4.1 Warranty............................................................................................................................. 4-1
4.2 Factory Service ................................................................................................................... 4-1
Appendix A External PTT Hook Up.....................................................................................................A
Appendix B- Installation Drawing (not to scale)....................................................................................... B
Appendix C Wiring/Interconnect ..........................................................................................................C
Appendix F -Instructions for Continuing Airworthiness and FAA Form 337 ......................................D
Appendix G RTCA DO160B Environmental Qualification Form ........................................................ E
Table of Figures
Figure 1-1 PMA6000B.......................................................................................................................... 1-1
Figure 2-1 Screw Locations................................................................................................................... 2-6
Figure 2-4 Backlight selection jumper location...................................................................................... 2-6
Figure 2-3 Adjustments ......................................................................................................................... 2-7
Figure 3-1 PMA6000B without Marker (-0100) .................................................................................... 3-1
Figure 3-2 PMA6000B with Marker (-0300) ......................................................................................... 3-1
Revision History
Rev Date Change
New New release of PMA6000B
1 6/23/2009 Update after review
2 10/21/2009 Improve wiring diagram
3 10/31/2009 General clean- up
4 2/2/2010 Added ETSO Approval
5 1/11/2011 Improved installation of grounding lug Appendix B
6 2/13/13 Changed §2.5 to show new cover and adjustment locations
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 1-1 Rev 6, Feb. 2013
Section I
GENERAL INFORMATION
1.1 INTRODUCTION
The PMA6000B family of Audio Selector Panels are revolutionary products. Never before has there been
so much capability and utility in such a compact package. These units are designed for ease of use and
installation, as well as to facilitate cockpit resource management and improve passenger entertainment.
Before installing and/or using this product, please read this manual completely. This will ensure that you
will take full advantage of all the advanced features.
1.2 SCOPE
This manual provides detailed installation and operation instructions for the PS Engineering PMA6000series of Audio Selector Panel/Intercom Systems. This includes the following units:
Model Description Part Number
PMA6000B Audio Selector Panel with Marker Receiver 6000B
PMA6000B Option 2 same as above, less marker receiver 6000B-2
Where the functions are identical to all units, it will be referred to herein as a PMA6000. Otherwise, the
applicable units will be specified.
1.3 EQUIPMENT DESCRIPTION
The PMA6000-series is a state of the art audio isolation amplifier and audio selector that contains a voice
activated (VOX) intercom system. It can switch up two transceivers (Com 1, Com 2) and six receivers
(Nav 1, Nav 2, ADF, DME, MKR and AUX). In addition, there are two unswitched inputs, for priority
audio sources such as TAWS or altimeter warning. Push buttons select the receiver audio source provided
to the headphones. A SPR button allows the user to listen to the receiver(s) selected on the cabin speaker.
Except for the unswitched inputs, all speaker audio is muted during transmit. Push buttons select one of
the transceivers for the pilot and copilot position in transmit. In "Split Mode" the PMA6000 has the ability to allow the pilot and copilot to operate different transmitters independently.
A fail-safe mode connects the pilot headphone and microphone to COM 1 and unswitched input #1 if
power is removed for any reason, or if the audio panel is turned OFF by pushing the volume control.
A four-station voice activated (VOX) intercom is included in the PMA6000. Pilot isolate and crew modes,
two mono music inputs with "Soft Mute," and transmit indications. Intercom control is through front
panel mounted knobs. Dual concentric knobs control intercom volume and intercom squelch.
A 3-light Marker Beacon receiver is integral to the PMA6000B (without option 2). This provides the necessary Marker Beacon light and audio indications necessary for an Instrument Landing System (ILS) approach.
Figure 1-1 PMA6000B
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 1-2 Rev 6, Feb. 2013
1.4 APPROVAL BASIS – FAA & EASA
TSO/ETSO Approval.
The PMA6000-series are FAA approved under TSO C50c (Audio Amplifiers) and TSO C35d (Marker
Beacon Receivers).
The PMA6000-Series is EASA Approved under ETSO C50c and ETSO 2C35d, ref
EASA.IM.210.10028565
All systems comply with RTCA DO-143, DO-160B DO-170, and EUROCAE WG No. 7/70.
Operation is subject to the following conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause unde-
sired operation.
1.5 SPECIFICATIONS
GENERAL SPECIFICATION TSO COMPLIANCE:
Marker Beacon: C35d, Class A
Audio Selector/Intercom: C50c, Class A
APPLICABLE DOCUMENTS:
RTCA DO-160b, RTCA DO-170 and RTCA DO-143
ENVIRONMENTAL Qualifications:
A1D1/CAMXXXXXXXBBBBAAX
Temperature Range: Operating: -20°C to +55°C
Storage: -40°C to +85°C
Altitude: Up to 50,000 feet in an non-pressurized area of the
cockpit
DIMENSIONS Height: 1.3 in. (3.3 cm) Width: 6.25 in. (16.9 cm)
Depth: 6.8 in. (17.3 cm
WEIGHT (With Rack & Connectors) :
1.5 Lb. (0.68 kg.)
POWER REQUIREMENTS (Including Internal Lighting):
Voltage
Maximum Current:
Typical operating current:
13.75 or 27.5 VDC*
1 Amp (Externally protected by a 2 Amp circuit
breaker.)
speaker off: 350 mA
speaker on: 600 mA
*27.5 VDC requires 15W dropping resistor (included).
Audio selector panel input impedance
510
Input Isolation -70 dB (min.)
Speaker Muting -60 dB (min.)
Speaker Output (into 4 ):
3 Watts (min.) with no clipping
Switched Receiver Inputs: 8 (Com 1, Com 2, Nav 1, Nav 2, ADF, DME, MKR,
AUX)
Unswitched Inputs 2
Transmitter Selections 3; Com 1, Com 2, Com 1/2
Speaker Impedance:
4
Headphone Impedance
150 - 1000
Headphone Output: 45 mW each headset with no clipping
Microphone Impedance:
150 - 600
Intercom Positions: 4 places
Music Inputs: 2
Music Muting: >50 dB "Soft Mute" when Radio or intercom active.
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 1-3 Rev 6, Feb. 2013
Distortion:
<1% THD@ 45 mW into 150
Mic Freq. Response, ±3 dB: 350 Hz - 6000 Hz
Music Freq. Response, ±3 dB 200 Hz - 15 kHz
Frequency: 75 MHz Crystal Controlled
Sensitivity:
Low
High
450 Volts (Hard)
Factory adjusted to 1400V (Soft) 160 Volts (Hard)
Factory adjusted to 150V (Soft)
Selectivity: -6 dB at 110 kHz -40 dB at 120 kHz
External Lamp Output: 7.0 (+/- 4) VDC Positive when active, max. current
125 mA
MM Sense: Active high (4.7 VDC +/- 0.5V) during Middle
Marker acquisition, for autopilot use.
1.6 EQUIPMENT SUPPLIED
A. 1 ea. of the following units:
Model Part Number
PMA6000B with Marker Beacon Receiver/Indicator)
6000B
PMA6000B Opt 2 (no Marker Beacon) 6000B -2
Installation kit 250-604-0000
Tray 430-890-0040
Pilot’s guide 200-066-0200
Dropping resistor 15Ω, 15W for 28V installations 701-015-1501
B. PMA6000 Installation Kit (250-604-0000):
Description Quantity Part
Number
Rack back plate 1 430-890-0050
44-pin connector kit 1 120-891-2045Backshell, connector 1 625-025-2465
Backshell Retainer 1 431-881-0100
4 40 X 7/16 screw w/nylon patch 4 475-440-0007
4 40 X 3/8 screw w/nylon patch 2 475-440-1038
4-40 x ¼” screw with lock washer 2 475-440-0001
Solder Lug 2 475-009-0001
Cable Clamp 1 625-001-0002
#6-32 x ½” Flat head Philips screw 6 475-632-0012
#6-32 Clip Nut 6 475-630-0002
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED
A. Speaker, 4
B. Headphones, mono, up to 4 as required
C. Microphones, up to 4 as required
D. Marker Antenna (75 MHz, VSWR <1:1.5, as appropriate) (Marker version only)
E. Interconnect Wiring
F. Headphone Jacks (Up to 4 as required)
G. Microphone Jacks (Up to 4 as required)
H. Circuit Breaker: 1 ea., 2 amp.
1.8 LICENSE REQUIREMENTS
None
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 2-1 Rev 6, Feb. 2013
Section II -Installation
2.1 GENERAL INFORMATION
2.1.1 SCOPE
This section provides detailed installation and interconnect instructions for the PS Engineering
PMA6000B-Series Audio Selector Panel/Intercom System and PMA6000B-Series Audio Selector
Panel/Intercom System with internal Marker Beacon.
With the exception of the internal marker beacon receiver, the audio panels are identical.
Please read this manual carefully before beginning any installation to prevent damage and post installation problems. Installation of this equipment requires special tools and knowledge. The equipment must
be installed by an appropriately rated Certified Aircraft Repair Station, in accordance with applicable
regulations.
NOTE: The PMA6000B-Series requires specialized knowledge equipment and tools for an effective installation. An appropriately rated Certified Aircraft Repair Station must install this equipment in accordance with applicable regulations. PS Engineering, Incorporated warranty is not valid unless the equipment is installed by an authorized PS Engineering, Incorporated dealer. Failure to follow any of the
installation instructions, or installation by a non-certified individual or agency will void the warranty, and
may result in an unairworthy installation.
2.2 Unpacking and Preliminary Inspection
Use care when unpacking the equipment. Inspect the units and parts supplied for visible signs of shipping
damage. Examine the unit for loose or broken buttons, bent knobs, etc. Verify the correct quantity of
components supplied with the list in 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 accessories shows any sign of external shipping damage, contact PS Engineering to arrange for a
replacement. Under no circumstances attempt to install a damaged unit in an aircraft. Equipment returned
to PS Engineering for any other reason should be shipped in the original PS Engineering packaging, or
other UPS approved packaging.
2.3 Equipment Installation Procedures
2.3.1 Cooling Requirements
Forced-air cooling of the PMA6000B is not required. However the unit should be kept away from heat
producing sources (i.e. defrost or heater ducts, dropping resistors, heat producing avionics) without adequate cooling air provided.
NOTICE: To reduce the amount of heat dissipated in the audio selector panel, when used in a 28
Volt aircraft, it is required that the 15 , 15-Watt dropping resistor (p/n 701-015-1501) be in-
stalled in series with the power input.
If the PMA6000B is installed in a 27.5 VDC aircraft system, a 15 , 15 Watt dropping resistor (p/n 701015-1501) should be installed. Failure to do so will generate unnecessary heat inside the unit and may
void PS Engineering's warranty.
PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 2-2 Rev 6, Feb. 2013
2.3.2 Mounting Requirements
The PMA6000B must be rigidly mounted to the instrument panel of the aircraft structure and within view
and reach of the pilot position(s). Installation must comply with FAA Advisory Circular AC 43.13-2B.
The unit may be mounted in any area where adequate clearance for the unit and associated wiring bundle
exist.
2.3.3 Mounting Rack Installation
Remove the unit from the mounting tray unscrewing the 3/32-inch hex-head screw that is in the center of
the unit. The hex-head screw is the lower opening. Carefully slide the unit free of the tray. Set the unit
aside in a safe location until needed. Install the tray using six FHP 6-32 x ½-inch screws, P/N 475-6320012 and #6-32 clip nut, P/N 475-630-0002. The audio selector panel must be supported at front and rear
of the mounting tray.
2.3.4 Audio Panel Tray and Connector Assembly
The rack connectors mate with two 44-pin connectors in the PMA5000EX. The connectors are a subminiature crimp-type, and require the use a hand crimp tool, from table below (or equiv.). The connectors
are mounted to the tray back plate with #4-40 screws (475-440-1038), from the inside of the tray and the
mounting block, 431-891-0100. Ensure that proper strain relief and chafing precautions are made during
wiring and installation, using the cable clamp (625-001-0002).
Two grounding lugs are provided, which may be attached to the rear mounting plate with 2 ea #4-40 x ¼”
screws with captivated lock washers. These provide a convenient location to connect the shield ground
terminations.
Manufacturer Crimping Tool Positioner Extraction tool
AMP 601966-1 601966-6 91067-1
Daniels AFM8 K42 M24308-1
ITT-Cannon 995-0001-584 995-0001-739 91067-1
Table 2-1 Connector Pin crimping tools
2.4 Cable Harness Wiring
Refer to Appendix C for assembling the wiring harness as required for the installation. All wires must be
MIL-SPEC in accordance with current regulations. Two- and three-conductor with shield wire must be
used where indicated, and be MIL-C-27500 or equivalent specification. Proper stripping, shielding and
soldering technique must be used at all times. It is imperative that correct wire be used.
Refer to FAA Advisory Circular 43.13-2B for more information. Failure to use correct techniques may
result in improper operation, electrical noise or unit failure. Damage caused by improper installation will
void the PS Engineering warranty.
NOTE:
This harness can be custom made by PS Engineering, Inc. Simply call the factory (800-427-2376) and
obtain a wire harness work sheet or visit our website at http://www.ps-engineering.com/downloads.shtml .
The harness will be made to your specifications and shipped three business days of receiving the order
sheet. All harnesses are fully functionally tested before shipping. All hardware is included, jacks are op-
tional. (See Appendix C for intercom connection diagrams).
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