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P178

AUDIO MIXER

PART 27
INSTALLATION MANUAL
MDL 7001-ML-001 Rev -- STC SR02445SE
EAGLE COPTERS USA INC.
19717 62
Avenue South, Suite E101, Kent WA 98032 | Phone: 800-546-2210
nd
FAX 253-867-5619 www.eaglecopters.com

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Summary of Contents for Eagle P178

  • Page 1: Audio Mixer

    P178 AUDIO MIXER PART 27 INSTALLATION MANUAL MDL 7001-ML-001 Rev -- STC SR02445SE EAGLE COPTERS USA INC. 19717 62 Avenue South, Suite E101, Kent WA 98032 | Phone: 800-546-2210 FAX 253-867-5619 www.eaglecopters.com...
  • Page 3 Recipient hereby agrees not to disclose, or allow to be disclosed, any Proprietary information or material of Eagle, in whole or in part, to any person or entity, for any reason or purpose whatsoever. Recipient further agrees that Recipient shall not use any Proprietary information or materials of Eagle for Recipient’s own purposes or for the benefit of any other person or entity...
  • Page 8 7001-ML-001 Revision -- Record of Revisions Revision Date Description 30 OCT 2014 Initial Release Page 2 of 3...
  • Page 9 7001-ML-001 Revision -- Master List DRAWING NO. TOTAL DATE DESCRIPTION 7001-MI-001 10/30/14 Modification Instructions 7001-TP-001 10/30/14 EMI Test Procedure G13120 1/13/14 Audio Mixer Page 3 of 3...
  • Page 12 7001-MI-001 Revision -- Record of Revisions Revision Date Description 30 OCT 2014 Initial Release Page 2 of 11...
  • Page 13: Table Of Contents

    7001-MI-001 Revision -- Table of Contents Scope ..............................4 Abbreviations ........................... 4 References ............................4 General Information ........................4 Installation ............................5 System Wiring ..........................6 System Testing ..........................9 Kit Parts List ............................ 10 Specifications ..........................11 Weight and Balance ........................11 Page 3 of 11...
  • Page 14: Scope

    7001-MI-001 Revision -- Scope These modification instructions are for the installation of the Eagle Copters P178 Failsafe Audio Mixer. Abbreviations EMI .... Electro-Magnetic Interference References 7001-TP-001 EMI Test Procedure General Information The Audio Mixer provides 3 composite outputs from up to 8 input signals. Channel 1 and...
  • Page 15: Installation

    7001-MI-001 Revision -- Installation The Audio Mixer is designed to be mounted in a variety of locations within the airframe, provided it is protected from the environment. It may be mounted to a deck, bulkhead, tray, avionics shelf or other structure rated to carry a 0.50 lb load. The exact mounting location is left to the installer’s discretion provided that the installation of the Audio Mixer does not interfere with other installed equipment.
  • Page 16: System Wiring

    7001-MI-001 Revision -- System Wiring Unless otherwise specified, follow the aircraft manufacturer’s electrical wiring practices and maintenance manuals for installation of all system wiring. Refer to Figure 2 for cable harness fabrication instructions to connect to the Audio Mixer. Ground Audio Shields at ONE end only. Unless otherwise noted, all shielded wire is M27500-(ga)TG(n)T14 and all unshielded wire is M22759/16-(ga)-9, where (ga) is the wire gauge and (n) is the number of wires inside the shield.
  • Page 17 7001-MI-001 Revision -- Figure 2 Cable Wiring Page 7 of 11...
  • Page 18 7001-MI-001 Revision -- 6.10 Refer to Figure 3 for Audio Mixer pin designation. Figure 3 Pin Designation Page 8 of 11...
  • Page 19: System Testing

    Pin #10 (pull low) to an external fault indicator (see note #2 in Section 6.9). There are no internal adjustments, jumpers or user serviceable parts. If the mixer fails, return it to Eagle Copters USA, Inc. for repair or replacement.
  • Page 20: Kit Parts List

    7001-MI-001 Revision -- Kit Parts List P178 Failsafe Audio Mixer Kit PART NUMBER DESCRIPTION G13120 Audio Mixer CCR264SS-3-02 Pull Rivet MS21042-08 Lock Nut, #8-32 MS21059L08 Nut Plate, #8-32, Floating MS35206-245 Screw, #8-32 x 1/2", Phil Pan NAS1149FN832P Flat Washer, #8...
  • Page 21: Specifications

    7001-MI-001 Revision -- Specifications P178 FAILSAFE AUDIO MIXER SPECIFICATIONS Number of Inputs 8 each Balanced @ 600 Ohm Impedance 3 each Composite @ 600 Ohm Transformer Coupled. 2 Number of Ouputs are Relay Protected Channels Input Gain Adjustment -17dB to +10dB...
  • Page 24 7001-TP-001 Revision -- Record of Revisions Revision Date Description 30 OCT 2014 Initial Release Page 2 of 8...
  • Page 25 7001-TP-001 Revision -- Table of Contents Scope ..............................4 Applicable Documents ........................4 Witnessing of EMI Test ........................4 Equipment Under Test ........................4 Test Procedure ..........................4 Items To Evaluate ..........................5 Page 3 of 8...
  • Page 26 7001-TP-001 Revision -- Scope This document is a test plan to be used to establish that newly installed electrical equipment does not interfere with essential aircraft equipment in any way that would impair safety of flight of the aircraft. Satisfactory completion of this test plan confirms that the newly installed equipment satisfies the EMI requirements of the Federal Aviation Administration.
  • Page 27 7001-TP-001 Revision -- If an aircraft system or component being evaluated for the effects of EMI Fails this test procedure, then corrective action must be taken to reduce the interference to an acceptable level which allows the aircraft system or component being evaluated for the effects of EMI to PASS this test. When re-testing after corrective action, the only tests to be repeated are the tests that Failed previously.
  • Page 28 7001-TP-001 Revision -- Magnetic Compass N/A __ Pass __ Fail __ Swing compass and adjust with EUT operating normally. If EUT causes erratic operation of magnetic compass, then mark compass as Fail. VHF Communications System N/A __ Pass __ Fail __ Tune each comm receiver to a low, middle, and high frequency within its frequency range.
  • Page 29 7001-TP-001 Revision -- Other Equipment: __________________ N/A __ Pass __ Fail __ Describe test: _________________________________________________________________________ _____________________________________________________________________________________ Other Equipment: __________________ N/A __ Pass __ Fail __ Describe test: _________________________________________________________________________ _____________________________________________________________________________________ Other Equipment: __________________ N/A __ Pass __ Fail __ Describe test: _________________________________________________________________________ _____________________________________________________________________________________ Other Equipment: __________________ N/A __ Pass __ Fail __...
  • Page 30 7001-TP-001 Revision -- Aircraft Tested: Model _______________, Registration ___________, Serial Number ______ Location of Test _______________________, Date _____________ Equipment Under Test: List: MODEL, PART NUMBER, SERIAL NUMBER _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ Test performed by ________________________________________________ Name Credentials Test witnessed by ________________________________________________ Name...
  • Page 31 REVISIONS DESCRIPTION APVR/DATE 5.750 3.040 1.750 .188 5.250 1.050 INPUT OUTPUT G13120 AUDIO MIXER WEIGHT = 8 OZ MAX NOTE: DIMENSIONS SHOWN ARE FOR REFERENCE ONLY VOLTAGE = 20 VDC MIN TO START 12 VDC TO HOLD BREAK SHARP EDGES DESIGNED DATE 1/13/14...

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