Instruction Manual

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9800 Martel Road

Lenoir City, TN 37772

www.ps-engineering.com

4-Channel Audio Summing Amplifier

Installation and Operation Manual

Document P/N 200-150-0100

October 2006

Any reproduction or retransmittal of this publication, or any portion thereof, without the expressed written permission of PS Engi-

neering, 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.

In certified aircraft, warranty is not valid unless this product is installed by

an Authorized PS Engineering dealer.

Summary of content (12 pages)

PAGE 1
9800 Martel Road Lenoir City, TN 37772 www.ps-engineering.com PA50 4-Channel Audio Summing Amplifier Installation and Operation Manual Document P/N 200-150-0100 October 2006 In certified aircraft, warranty is not valid unless this product is installed by an Authorized PS Engineering dealer. PS Engineering, Inc. 2006 © 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.
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Table of Contents SECTION I - GENERAL INFORMATION...................................................................... 1-1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 INTRODUCTION........................................................................................................... 1-1 SCOPE ............................................................................................................................. 1-1 EQUIPMENT DESCRIPTION ........................................................................
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual Section I - GENERAL INFORMATION 1.1 INTRODUCTION The PA50 is an accessory device designed to accept four audio inputs and present a single summed output. This accommodates the proliferation of unswitched priority audio signals in aviation, and the limited availability of unswitched audio inputs to the aircraft system. Before installing and/or using this product, please read this manual completely.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual 1.5 SPECIFICATIONS Specifications ENVIRONMENTAL CONDITIONS: Temperature Range: Operating: -15º C to 55º C Storage: -40º C to 85º C Altitude: Up to 50,000 feet in an unpressurized area of the aircraft. Height: 1.25 in. Length: 5.5 in Width: 4.0 in . (w/ mounting flanges) DIMENSIONS: WEIGHT (With Connector): 8.5 Oz. (0.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual PA50 Installation Kit: Part Number 425-025-0006 200-150-0100 1.7 Description DB25 Female Operator's and Installation Manual Quantity 1 1 EQUIPMENT REQUIRED BUT NOT SUPPLIED Circuit Breaker: 1 ea. 1 amp. Input signal source, (in ex TAWS alert signal) Aircraft audio system to accept the summed signals Interconnect Wiring 1.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual Section II - Installation 2.1 GENERAL INFORMATION 2.1.1 SCOPE This section provides detailed installation and interconnect instructions for the PS Engineering PA50 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.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual 2.3.3 Connector Assembly The rear of the PA50 contains a male DB25 connector. In the parts kit is a female shell with qty. 12 crimp type pins. The appropriate crimper is Paladin PA1440. Ensure that proper strain relief and chafing precautions are made during wiring and installation. 2.4 Cable Harness Wiring Referring to the Appendix, assemble a wiring harness as required for the installation.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual 2.6 Post Installation Checkout After wiring is complete, verify power is ONLY on pin 25 of the J1 connector, and airframe ground on pin 13. Failure to do so will cause serious internal damage and void PS Engineering's warranty. 2.6.1 Operational Checkout Apply power to the aircraft and avionics. Verify that the audio signal connected to the PA50 are provided to the aircraft’s audio system.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual Section III OPERATION GENERAL INFORMATION There are no external operational controls on the PA50, only one internal volume control that affects all four audio inputs.
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PS Engineering PA50 Four-channel Audio Summing Amplifier 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-certified avionics shop and authorized PS Engineering dealer. If the unit is being installed by a non-certified individual in an experimental aircraft, a factory-made harness must be used for the warranty to be valid. PS Engineering, Inc.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual Appendix B – Installation Drawing 5.480 A Ø0.136 3.500 AUDIO ADJUST 4.000 VOL ADJ A A 4.
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PS Engineering PA50 Four-channel Audio Summing Amplifier Installation and Operator’s Manual PA50 Sub-D DB-25 Male Power In Ground 25 13 Audio Output Hi 14 1A 11-33 VDC Audio Panel Unsw. Input 4 Aux 1 Audio Output Aux 2 Input Hi 16 Aux 2 Audio Output Aux 3 Input Hi 3 Aux 3 Audio Output Aux 4 Input Hi 15 Aux 4 Audio Output Audio Lo 18 To Unswitched Audio Sources Aux 1 Input Hi 9800 MARTEL ROAD, LENOIR CITY TN 37772 NOTES: 1. All wire must conform to MIL-22759 or 27500.