AEM LSA400-001 User manual

CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
INSTALLATION AND OPERATION MANUAL
REV 1.01 June 16, 2016
Anodyne Electronics Manufacturing Corp.
15-1925 Kirschner Road
Kelowna, BC, Canada.
V1Y 4N7
Telephone [phone]
Facsimile [phone]
Website: www.aem-corp.com
© 2016 Anodyne Electronics Manufacturing Corp. (AEM),
All Rights Reserved
ASM-LSA400
LSA400
-001
Loud Speaker Amplifier

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
Installation and Operation Manual Page ii
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
COPYRIGHT STATEMENT
© 2016 Anodyne Electronics Manufacturing Corp. (AEM), All Rights Reserved
This publication is the property of AEM and is protected by Canadian copyright laws.
No part of this document may be reproduced or transmitted in any form or by any
means including electronic, mechanical, photocopying, recording, or otherwise, without
the prior written permission of AEM.

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
Installation and Operation Manual Page iii
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Prepared By:
Checked By:
Approved By:
The status of this installation and operation manual is controlled by the revision shown on the title page.
The status of each section is controlled by revision shown in the footer of each page. All revisions
affecting sections of this manual have been incorporated.
AEM MANUAL REVISIONS
Section
Revision Number
Revision Description
Date
1, 3 Rev: 1.01
RAS#599: Corrected Peak power output,
wording correction
Jun 16, 2016
All
Rev: 1.00
Initial release
Oct 7, 2014
Tony Pearson
Designer
Jun 16, 2016
Duane Stewart
Designer
June 27/16
Tom Betzelt
Product Support
Manager
June 28, 2016
Todd Blackstock
R&D Manager
A
ug 4/16

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
Installation and Operation Manual Page iv
ENG-FORM: 820-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Table of Contents
Section Title Page
1.0 Description
1.1 Introduction 1-1
1.2 Product Description 1-1
1.3 Design Features 1-2
1.4 Specifications 1-3
1.4.1 Electrical Specifications 1-3
1.4.2 Physical Specifications 1-4
1.4.3 Environmental Specifications 1-5
1.5 Product Limitations 1-5
2.0 Installation
2.1 Introduction 2-1
2.2 Unpacking and Inspection 2-1
2.2.1 Warranty 2-1
2.3 Installation Procedures 2-1
2.3.1 Warnings 2-1
2.3.2 Cautions 2-1
2.3.3 Cabling and Wiring 2-2
2.3.4 Post-Installation Checks 2-2
2.4 Adjustments and Connections 2-3
2.5 Accessories Required But Not Supplied 2-3
2.6 Continued Airworthiness 2-4
2.7 Installation Drawings 2-4
3.0 Operation
3.1 Introduction 3-1
3.2 General 3-1
3.3 Controls and Indicators 3-1
3.3.1 Annunciators 3-1
3.3.2 Remote ON/OFF 3-2

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-1
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Section 1.0 Description
1.1 Introduction
Information in this section consists of product description, design features and specifications for the
LSA400-001 Loud Speaker Amplifier. All derivative product information will be contained in the applicable
manual supplement, which may be obtained from AEM as required.
Review all notes, warnings and cautions.
1.2 Product Description
The LSA400-001 is AEM’s next generation loud speaker amplifier. It utilizes a highly efficient Power
Supply and a Class-D Amplifier to produce 400 watts RMS (800 watts Peak) of output power with minimal
distortion and noise.
The LSA400-001 is more compact and lighter than other comparable amplifier systems. It also has
flexible options for remote mounting either vertically or horizontally.
The LSA400-001 is designed and qualified to meet operational roles on fixed wing aircraft as well as light
and medium helicopter airframes with single and twin turbine engine types.
It is intended for use with an LS300 or LS600 external speaker array and a siren controller as a complete
system.
Siren Controller
Loud Speaker Amplifier
Loud Speaker

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-2
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.3 Design Features
The LSA400-001 has a single differential speaker output capable of driving 400 watts RMS (800 watts
Peak) into a 3 Ohm load.
The LSA400-001 has a number of built in protection circuits that keep the amplifier from being damaged,
including Output Short Circuit and Thermal Shutdown which minimize the possibility of damage to the
speaker output stage.
The LSA400-001 has four audio inputs consisting of one microphone, two single ended inputs and one
differential audio input to provide input source flexibility. Each input has a field adjustable gain level to
optimize speaker output power for various input signal levels.
The amplifier status annunciators for the protection circuits and user accessible audio input adjustments
are displayed externally near the D-Sub connector.
See Section 2.0 for further details on the Audio Input Adjustments and Section 3.0 for Status
Annunciators.
There are two Remote On/Off inputs that provide the ability for low current switched high or switched low
remote activation of the amplifier if being turned on remotely from a siren controller.
A single PA Ready output provides a switched ground for remote sensing or displaying of the amplifier
ready state.
Amplifier Status Annunciators
Audio Input Adjustments

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-3
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4 Specifications
1.4.1 Electrical Specifications
1.4.1.1 Input Operating Voltage
Normal Operating Conditions:
Nominal: +28.0 Vdc
Maximum: +30.3 Vdc
Minimum: +22.0 Vdc
Abnormal Operating Conditions:
Nominal: N/A
Maximum: N/A
Minimum: N/A
Input Current: 20A maximum @ 28.0 Vdc
1.4.1.2 Input Signals
Microphone Audio (MIC HI IN)
Quantity: 1
Circuit Type: Single-Ended
Rated Level: 250 mVrms ± 10%
Impedance: 150 Ohm ± 10%
Mic Bias: 13.5 ± 0.5Vdc
Auxiliary Differential Audio (AUDIO HI IN)
Quantity: 1
Circuit Type: Differential
Rated Level: 500 mVrms ± 10%
Impedance: 1k Ohm ± 10%
Single-Ended Auxiliary Audio (AUX SE HI IN)
Quantity: 2
Circuit Type: Single-Ended
Rated Level: 500mVrms ± 10%
Impedance: 1k Ohm ± 10%
Remote On/Off (REMOTE ON/OFF 28V IN)
Quantity: 1
Rated Level: 28V (active high), 10V minimum
Current (Sink) < 2 mA
Remote On/Off (REMOTE ON/OFF GND IN)
Quantity: 1
Rated Level: 0V (active low), 1V maximum
Current (Sourced) >5 mA

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-4
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.1.3 Output Signals
Speaker Audio (SPEAKER)
Quantity: 1
Circuit Type: Differential
Output Power: 400 Wrms (800 Wpk) into 3 Ohms
Rated Level: 34.65 Vrms into 3 Ohms
Duty Cycle: 25% duty cycle siren audio, 1 min max. on time
100% duty cycle voice audio
Freq. Response: < 3db from 200 Hz to 6 kHz
Distortion: < 10% @ Rated output
< 3% @10% of Rated output
Audio Noise Level: ≥60 dB below rated output of the system
PA Ready (PA READY)
Quantity: 1
Circuit Type: Single Ended, Switched ground (active low)
Rated Level: ≤3 Ω
Current: 0.4 A maximum
1.4.2 Physical Specifications
Height 5.45" (138.5 mm)
Length 9.80" (248.9 mm)
Width 2.04" (51.9 mm)
Weight 3.7 lbs (1.7 kg) max.
Mounting Remote mount using four AN4 (1/4-28) Hex fasteners and four
0.28”inside Diameter, 0.73”outside Diameter flat washers
Recommend mounting with heatsink fins facing upwards or
vertical and exposed to airflow.
Connector 36 pin D-sub combination connector (50 pin shell) with jack post
hardware
Material/Finish Enclosure and heatsink are aluminum with Clear MIL-DTL-5541
Type II Class 3 coating
Bonding 2.5 m

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 1-5
ENG-FORM: 800-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
1.4.3 Environmental Specifications
Temperature -30 to +60C (operating)
-55 to +85C (survival)
Altitude 25,000 feet max.
Humidity 95% Non-condensing
Operational Shock 6g for 11 ms
Crash Safety Shock 20g for 11 msec (impulse), 3 sec (sustained)
Vibration Conforms to DO-160G Category ‘S’Curves B & M
and Category ‘U2’ Curves F & F1
Qualification of the LSA400-001 Loud Speaker Amplifier was completed in accordance with
DO-160G Env. Cat. B4-BAB[SBM][U2FF1]XXXXXXA[BXX]AB[AC][RR]LXXXAX.
1.5 Product Limitations
At rated output, utilizing siren audio, the LSA400-001 should not be operated with more than a 25% duty
cycle at one minute of on time, followed by three minutes of off time.
End of Section 1.0

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 2-1
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Section 2.0 Installation
2.1 Introduction
Information in this section consists of: unpacking and inspection procedures, installation procedures,
post-installation checks, and installation drawings.
2.2 Unpacking and Inspection
Unpack the equipment carefully. Inspect the unit visually for damage due to shipping and report all such
claims immediately to the carrier involved. Note that each unit should have the following:
- LSA400-001 Loud Speaker Amplifier
- Product Information Card
- Certificate of Conformity or Release certification
Verify that all items are present before proceeding and report any shortage immediately to your supplier.
2.2.1 Warranty
All Anodyne Electronics Manufacturing Corp. (AEM) products are warranted for 2 years. See the website
www.aem-corp.com/warranty for complete details.
2.3 Installation Procedures
2.3.1 Warnings
WARNING:
When the amplifier is connected to an appropriate speaker, the system
is capable of producing high sound pressure levels. Proper personal
protective equipment is required to prevent hearing damage.
2.3.2 Cautions
CAUTION:
Do not obstruct ambient air flow to the heatsink fins.
Do not operate the unit outside of the parameters listed in the
Electrical Specifications section.
Always check ADF and compass calibration after installing external speakers
or power amplifiers.

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 2-2
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
CAUTION:
Use shielded cable exactly as shown and ground as indicated. Installation can
be severely degraded by incorrect wiring and shielding.
Precautions are necessary when external signals, such as intercom, radio or
recorders are used. The high gain of the amplifier requires care to prevent
feedback or crosstalk. Ground loops and stray currents in the input line
must be eliminated.
Bundle and route the Speaker Output wires separately from
low level Audio Input lines.
2.3.3 Cabling and Wiring
All wire shall be selected in accordance with the original aircraft manufacturer's Maintenance Instructions
or AC43.13-1B Change 1, Paragraphs 11-76 through 11-78. Unshielded wire types shall qualify to MIL-
W-22759 as specified in AC43.13-1B Change 1, Paragraphs 11-85, 11-86, and listed in Table 11-11. For
shielded wire applications, use Tefzel MIL-C-27500 shielded wire with solder sleeves (for shield
terminations) to make the most compact and easily terminated interconnect. Follow the interconnect
drawing in Section 2.7 as required.
Allow 3" from the end of the shielded wiring to the shield termination to allow the connector hood to be
easily installed. Refer to the interconnect drawing in Section 2.7 for shield termination details. Note that
the hood is a "clamshell" hood, and is installed after the wiring is complete. Aircraft harnessing shall
permit the unit to be removed for easy access to all adjustments.
Maintain wire segregation and route wiring in accordance with the original aircraft manufacturers
Maintenance Instructions.
Reference the Interconnect drawing for wire sizing specifications. Check that the ground connection is
clean and well secured, and that it shares no path with any electrically noisy aircraft accessories such as
blowers, turn and bank instruments or similar loads. Power to this unit must be supplied from a separate
circuit breaker or fuse (fast blow), and not attached to any other circuit breaker without additional
protection. Verify that the selected circuit breaker size and wire gauge are adequate for the installation
using the techniques specified in AC43.13-1B Change 1, Paragraphs 11-47 through 11-51 and 11-66
through 11-69.
2.3.4 Post-Installation Checks
Ensure all connectors are tight and the mechanical installation is sound.
2.3.4.1 Voltage/Resistance Checks
Do not connect the LSA400-001 to the wiring harness until the following conditions are met.
Check the following:
a) Check P101, pin A1 for +28 Vdc relative to ground.
b) Check P101, pin A4 for continuity to ground (less than 0.5).
c) Check P101, pins A2 and A3 for no connection to ground (open).

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 2-3
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
2.4 Adjustments and Connections
The unit is shipped from the factory with all internal adjustments set to the normal test levels. Once
installed in the aircraft, it may be desirable to change some of these settings to best suit the local
operating environment.
The internal field adjustable settings are located adjacent to the external D-Sub connector and are
labeled:
- MIC (Microphone Audio)
- AUX SE 1 (Single-Ended Auxiliary Audio)
- AUX SE 2 (Single-Ended Auxiliary Audio)
- AUDIO (Auxiliary Differential Audio)
These gain adjustments each cover a 33dB range
of -30dB to +3dB from their rated nominal inputs.
2.5 Accessories Required But Not Supplied
Installation kit p/n LSA400-IKC (crimp) or LSA400-IKS (solder) are required to complete the installation.
The kit consists of the following:
LSA400-IKC consists of:
Quantity Description AEM Part No.
1 D-Sub, Socket, 36 Crimp Housing 120-21-001
32 Contact, Female, Signal 120-26-010
4 Contact, Female, 10-12 AWG 120-26-009
1 Hood, Metal 120-28-003
LSA400-IKSconsists of:
Quantity Description AEM Part No.
1 D-Sub, Socket, 36 Solder Housing 120-20-002
4 Contact, Female, 10-12 AWG 120-26-004
1 Hood, Metal 120-28-003

LSA400-001 Loud Speaker Amplifier
Installation and Operation Manual
June 16, 2016 Rev: 1.01 Page 2-4
ENG-FORM: 805-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
2.6 Continued Airworthiness
Maintenance of the LSA400-001 Loud Speaker Amplifier is ‘on condition’ only. Periodic maintenance of
this product is not required.
2.7 Installation Drawings
DOCUMENT
REV
DESCRIPTION
TYPE
SERIAL NO.
LSA400-001-403-0
1.00
Loud Speaker Amplifier
Interconnect
1000+
LSA400-001-403-1
1.00
Loud Speaker Amplifier
Interconnect
1000+
LSA400-001-405-0
1.00
Loud Speaker Amplifier
Connector Map
1000+
LSA400-001-922-0
1.00
Loud Speaker Amplifier
Mechanical Installation
1000+
Section 2.0 ends following above documents

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DIMENSIONS ARE IN INCHES
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LSA400-001 1.00
403-0
LOUD SPEAKER AMPLIFIER
1:1 1 of 3
INTERCONNECT
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THE INFORMATION CONTAINED IN THIS
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LSA400-001 1.00
403-0
LOUD SPEAKER AMPLIFIER
1:1 2 of 3
INTERCONNECT
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TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL ±0.5 Deg
ANGULAR: MACH ±BEND ±
TWO PLACE DECIMAL ±0.01
THREE PLACE DECIMAL ±0.005
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
ANODYNE ELECTRONICS MANUFACTURING.
ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
ANODYNE ELECTRONICS MANUFACTURING IS
PROHIBITED.
CAGE CODE
PROPRIETARY AND CONFIDENTIAL
APPROVED
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ELECTRONICS
MANUFACTURING CORP.
KELOWNA BC CANADA
(250)-763-1088
WWW.AEM-CORP.COM
LSA400-001 1.00
403-0
LOUD SPEAKER AMPLIFIER
1:1 3 of 3
INTERCONNECT, SPEAKER CONFIGS
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DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL ±0.5 Deg
ANGULAR: MACH ±BEND ±
TWO PLACE DECIMAL ±0.01
THREE PLACE DECIMAL ±0.005
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
ANODYNE ELECTRONICS MANUFACTURING.
ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
ANODYNE ELECTRONICS MANUFACTURING IS
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CAGE CODE
PROPRIETARY AND CONFIDENTIAL
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MANUFACTURING CORP.
KELOWNA BC CANADA
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403-1
LOUD SPEAKER AMPLIFIER
1:1 1 of 3
INTERCONNECT
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DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL ±0.5 Deg
ANGULAR: MACH ±BEND ±
TWO PLACE DECIMAL ±0.01
THREE PLACE DECIMAL ±0.005
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
ANODYNE ELECTRONICS MANUFACTURING.
ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
ANODYNE ELECTRONICS MANUFACTURING IS
PROHIBITED.
CAGE CODE
PROPRIETARY AND CONFIDENTIAL
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LSA400-001 1.00
403-1
LOUD SPEAKER AMPLIFIER
1:1 2 of 3
INTERCONNECT
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TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL ±0.5 Deg
ANGULAR: MACH ±BEND ±
TWO PLACE DECIMAL ±0.01
THREE PLACE DECIMAL ±0.005
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
ANODYNE ELECTRONICS MANUFACTURING.
ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
ANODYNE ELECTRONICS MANUFACTURING IS
PROHIBITED.
CAGE CODE
PROPRIETARY AND CONFIDENTIAL
APPROVED
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ELECTRONICS
MANUFACTURING CORP.
KELOWNA BC CANADA
(250)-763-1088
WWW.AEM-CORP.COM
LSA400-001 1.00
403-1
LOUD SPEAKER AMPLIFIER
1:1 3 of 3
INTERCONNECT, SPEAKER CONFIGS
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INTERPRET GEOMETRIC
TOLERANCING PER:
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL ±0.5 Deg
ANGULAR: MACH ±BEND ±
TWO PLACE DECIMAL ±0.01
THREE PLACE DECIMAL ±0.005
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
ANODYNE ELECTRONICS MANUFACTURING.
ANY REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
ANODYNE ELECTRONICS MANUFACTURING IS
PROHIBITED.
CAGE CODE
PROPRIETARY AND CONFIDENTIAL
APPROVED
L9015
ANODYNE
ELECTRONICS
MANUFACTURING CORP.
KELOWNA BC CANADA
(250)-763-1088
WWW.AEM-CORP.COM
LSA400-001 1.00
405-0
LOUD SPEAKER AMPLIFIER
1:1 1 of 1
CONNECTOR MAP
Sep 15/14
Sept 15/14