Product Guide to Installation & Operation Audio Amplifier Model #: AI-SW200X & AI-SW400X Document #540054

Transcription

1 Product Guide to Installation & Operation Audio Amplifier Model #: AI-SW200X & AI-SW400X Document # Industry Drive, North Little Rock, AR Phone: Fax:

2 Revision History Rev. Level Date Description IR 8/98 Initial Release Applicable Documents Document Drawing Description # # N/A AI-SW200X Amplifier N/A AI-SW400X Amplifier 2

3 Service Bulletin List Service Bulletin # Subject Manual Revision # Manual Revision Date List of Illustrations Section No. Description Page # 3

4 Table of Contents Section Description Page 1.0 General Information Introduction Purpose of the Equipment Operational Features Optional Equipment Installation Prior to Installation Unpacking & Inspection Cautions & Warnings Wiring Requirements Physical Requirements Electrical Requirements Pinouts / Descriptions Connector / Mating Connector Information Post Installation Test Operations Troubleshooting Specifications and Drawings Unit Specifications Applicable Drawings PROPRIETARY NOTICE: Despite any copyright notice, this data and information disclosed herein is unpublished and contains confidential, proprietary design owned by Audio International Incorporated. Neither this data nor the data contained herein shall be reproduced, used or disclosed to anyone without the written authorization of Audio International, Incorporated. 4

5 MODEL NO. AI-SW200X & AI-SW400X Stereo Power Amplifier 1.0 General Information 1.1 Introduction This manual contains information for the installation and operation of the Audio International, Inc. (AI) Stereo/Subwoofer Power Amplifiers, Model No. AI- SW200X (200 Watt) and Model No. AI-SW400X (200 Watt). Information contained within this publication includes relative physical, mechanical, and electrical characteristics. Also included within this publication are additional references needed for installation and operation. 1.2 Purpose of the Equipment The AI-SW200X and AI-SW400X are audio components that can be utilized to form standard, basic building blocks that can be arranged in almost any configuration for any size aircraft. These audio components are built to rugged aircraft standards and are easily incorporated into new or existing cabin audio systems. They feature compact size, solid state circuitry, lightweight aluminum housings, and an attractive, durable anodized finish. 1.3 Operational Features The AI-SW amplifier takes low level audio signals and amplifies them to properly drive loudspeaker systems allowing an entertainment system to sound its best in any aircraft interior. Both are professional stereo/subwoofer power amplifiers that deliver high performance, excellent frequency response, and clear sound quality. Both provide convenient 12VDC, 3 amp output for powering source components which eliminates the need for separate inverter / converters. In the AI-SW200X two ST100X amps are combined into one enclosure with a built-in 135 Hz crossover. This crossover provides separate subwoofer and midrange / tweeter outputs for powerful full range performance. The unit has 4 channels, 50W per channel RMS, 60W maximum. In the AI-SW400X two 100W amps are combined into one enclosure with a builtin 135 Hz crossover. This crossover provides separate subwoofer and midrange / tweeter outputs for powerful full range performance. This unit includes PA/Chime override with gain adjustments. The unit has 4 channels, 50W per channel RMS. 5

6 1.4 Optional Equipment 2.0 Installation Audio International, Inc. carries a complete line of speaker systems to enhance any aircraft entertainment system. As an industry leader in aviation entertainment systems, Audio International, Inc. can offer the perfect combination for the quietest listening and the highest quality in personal audio entertainment. 2.1 Prior to Installation The AI-SW200X and AI-SW400X are simple modules to use and install. All audio input cables on the units should be twisted shielded pair (24 AWG minimum) unless otherwise specified. 18 AWG minimum is recommended for output cables. The module must be attached to conform to the standards designated by the customer, installing agency, and existing conditions as to the unit location and type of installation. The following should be carefully considered before installing: Select a mounting location for the unit where 28 VDC power and audio signal has been previously installed. For best results, the unit must be located as close to source equipment as possible. Long low-level runs may introduce noise into the audio signal. Allow a minimum of ½ inch air space around the amplifier due to the amount of heat generated by the unit. Refer to section 5.2 for the location of mounting holes Amplifier must not be mounted upside down. Cooling fins located on the top of the case must be facing upward or sideways to allow heat to escape Locate the unit to allow ease in adjustments. Master gain controls are located on the back of the unit and must be accessible for system adjustments and periodic maintenance Initial audio adjustments should begin with the gain adjustments at midlevel and adjusted as low as possible to obtain acceptable output levels without distortion The purpose of the audio amplifier is to compensate for low level audio signals and amplify them to a high level. The amplifier adjustments will be most effective when the interior is thoroughly furnished and all pieces of furniture are in place. A spectrum analyzer is the best tool to use in determining the proper amplifier settings. If a spectrum analyzer is not available, simply determine the settings by audio preference. 6

7 2.2 Unpacking & Inspection Carefully open the packaging and remove the Amplifier. Verify that all components have been included in the package per the packing list. Inspect the unit for damage. Retain the packing materials and packing list. The components should arrive in good condition. 2.3 Cautions & Warnings If damage has occurred during shipping, a claim must be filed with AI within 24 hours and a Return Request Authorization Number must be obtained from AI. Refer to the front cover of this manual for address and telephone number of Audio International, Inc. Repackage the unit in its original packaging materials and return it to AI following instructions given by the AI representative. If no return is necessary, retain the packing materials for storage or reshipment if necessary All audio connections to the unit should be shielded and grounded. Perform a pin-to-pin check to confirm that all wires terminate in their proper location. It is important to do a power and ground check on the pin connections. Ensure that power and ground are applied only where required DO NOT connect or disconnect the unit while power is applied DO NOT remove any factory-installed screws. Damage to the unit may result and void any warranties DO NOT mount amplifier upside down. Cooling fins must face upward or sideways. 2.4 Wiring Requirements The installing agency must supply and fabricate all external cables. The length and routing of external cables must be carefully studied and planned before attempting installation of the equipment. Allow adequate space for installation of cable and connectors. Avoid sharp bends and placing cables near aircraft control cables. Maintain a minimum clearance of three (3) inches from any control cable. If wiring is run parallel to combustible fluid or oxygen lines, maintain a separation of six (6) inches between the lines. 7

8 2.4.2 All power and ground wires must be 18 AWG minimum. All audio input lines require twisted, shielded cable with the cable shields grounded. 18 AWG minimum is recommended for output cables. Power ground wires must be grounded within twelve (12) inches of the unit. All wires must be in accordance with MIL-W or equivalent. Twisted, shielded cable must be in accordance with MIL-W or equivalent. Protect power wires with circuit breakers or fuses located close to the electrical power source bus. 2.5 Physical Requirements Refer to section 5.1 for unit dimensions The AI-SW200X and AI-SW-400X must be located in a position that is easily accessible, as adjustments are located at the back of the unit. Therefore, allow enough clearance for gain adjustments. 2.6 Electrical Requirements The amplifier units utilize one 15-pin D-subminiature connector for electrical connections and one 11-pin D-subminiature connector for speaker output. P1 connector provides 28 VDC, left/right audio input, data bus control, 12 VDC output, and remote turn on input. P2 connector provides 28 VDC, left/right speaker output and left/right woofer speaker output AI-SW400X utilizes a third 9-pin D-subminiature connector for PA input. P3 connector provides PA key input and PA audio input Power requirements are twelve (12) amps average at 28VDC at continuous power output (50 watts per channel 4 channel for the AI-SW200X and 50 watts per channel 4 channel for the AI-SW400X) 8

9 2.7 Pinouts / Descriptions The AI-SW200X and AI-SW400X unit connectors with their respective pins and descriptions are as follows: P1 P2 Pin # Description Pin # Description 1 R+ Audio Input A +28 VDC Power Input 2 R- Audio Input B Ground 3 L+ Audio Input C R+ Stereo Speaker Output 4 L- Audio Input D R- Stereo Speaker Output 5 Remote Turn On Input, switched E L+ Stereo Speaker Output 28 VDC input F L- Stereo Speaker Output VDC Input for 12 VDC supply G R+ Woofer Speaker Output VDC Output-1 amp H R- Woofer Speaker Output VDC Output-1 amp J L+ Woofer Speaker Output VDC Ouptut-1 amp K L- Woofer Speaker Output 10 N/C 11 N/C 12 N/C 13 N/C 14 N/C 15 N/C P3 (AI-SW400X only) 1 Reserved 2 Ground 3 PA Key Input 4 PA Audio + Input 5 PA Audio Input 6 Reserved 7 Reserved 8 Reserved 9 Reserved 2.8 Connector / Mating Connector Information Mating connector part numbers are as follows: Pin # Connector Mating Connector P1 DAMA-15P DAMA-15S P2 MS3122E 18-11P MS3126F 18-11S P3 DAMA-9P DAMA-9S 9

10 2.9 Post Installation Test 3.0 Operations With the aircraft and entertainment system powered, load the entertainment source equipment with audio selection. Ensure that power is applied to the amplifier. Adjust gain controls as necessary Do not over torque gain pots. These are one turn gain pots only. To operate the amplifier, load the audio source with selected material. Adjust the gain controls on the back of the unit to desired options. 4.0 Troubleshooting Problem Possible Cause Solution No sound Amplifier is improperly installed Verify 28 VDC power and audio input is present No audio material in source unit. Insert audio material in source unit Poor audio quality Audio controls are not adjusted properly. Adjust gain controls 5.0 Specifications and Drawings 5.1 Unit Specifications Housing Dimensions Weight Physical Specifications Lightweight Aluminum Length-8.0, width-4.75, height lbs. / 1.55 kg. Electrical Specifications Power AMP maximum at 28 continuous power output (50 Watts per channel 4 channel) Nominal current consumption 4 6 AMPs Power req. for 12 VDC supply: 5 AMPs Max. Power Output 50 Watts per channel RMS into 4-ohms Audio Input Impedance 10K-ohms Input Level 200mV to 2V (adjustable) Minimum Speaker Load 2-ohms Remote Turn On Input +28 VDC for amplifier operation +12 VDC Outputs 1 AMP each (Do Not exceed total combined current rating of 3 AMPs. Amplifier 5 AMP Breaker +12 VDC supply on 3 AMP Breaker 10

11 5.2 Applicable Drawings: The following diagrams show unit dimensions, connector locations and gain controls on the AI-SW200X audio amplifier. AI-SW200X Amplifier 11

12 5.2.2 The following diagrams show unit dimensions connector locations and gain controls on the AI-SW400X amplifier. 12