Extron electronics MPA 152 MD User Manual
Extron electronics MPA 152 MD User Manual

Extron electronics MPA 152 MD User Manual

Mini power amplifier
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User Guide
Audio
MPA 152 MD
Mini Power Amplifier
68-1989-01 Rev. A
11 10

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Table of Contents
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Summary of Contents for Extron electronics MPA 152 MD

  • Page 1 User Guide Audio MPA 152 MD Mini Power Amplifier 68-1989-01 Rev. A 11 10...
  • Page 2 Precautions Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source indicated on the product. This This symbol is intended to alert the user of important operating and maintenance equipment is intended to be used with a main power system with a grounded (neutral) conductor. The (servicing) instructions in the literature provided with the equipment.
  • Page 3 CAUTION: A caution warns of things or actions that might damage the equipment. WARNING: A warning warns of things or actions that might cause injury, death, or other severe consequences. Copyright © 2010 Extron Electronics. All rights reserved. Trademarks All trademarks mentioned in this guide are the properties of their respective owners.
  • Page 5: Table Of Contents

    MPA 152 MD Application Notes ....... 1 About the MPA 152 MD ........2 Features ............2 Panels and Cabling ......... MPA 152 MD Rear Panel Features ....3 Power ............3 Audio Inputs ..........4 Remote Control ........... 5 Audio Output ..........
  • Page 6 MPA 152 MD • Contents...
  • Page 7: Introduction

    The MPA 152 MD device is an accessory to medical equipment that falls under the scope of “UL 60601-1, Clause 2.1.3”, since it qualifies as an optional component that can be deemed...
  • Page 8: About The Mpa 152 Md

    THE MPA 152 MD IS AN ACCESSORY TO A MEDICAL SYSTEM. The MPA 152 MD is a high performance, compact, power amplifier. It delivers up to 15 watts (rms) per channel (stereo or dual mono) into a 4 ohm sound system or 8 watts (rms) per channel into an 8 ohm system.
  • Page 9: Panels And Cabling

    Cabling This section discusses the MPA 152 MD rear panel features and cabling. MPA 152 MD Rear Panel Features The rear panel of the MPA 152 MD (shown in figure 1 below) allows the user to connect power, audio input, speakers, and remote control.
  • Page 10: Audio Inputs

    3.5 mm stereo input — This connector accepts Tip (L) unbalanced, line level audio signals. If unused, the Ring (R) connector automatically terminates to lower the noise floor. Sleeve ( ) 3.5 mm Stereo Plug Connector MPA 152 MD • Panels and Cabling...
  • Page 11: Remote Control

    Third party 10k potentiometer volume controllers can also be connected VOL/MUTE 50mA to this port. Wire the remote control connector to the MPA 152 MD captive screw connector as shown in the figure and instructions below. REMOTE 10 V (Pin 1)
  • Page 12: Controlling Multiple Amplifiers With One Volume Controller

    Figure 5. Regulating Multiple Amplifiers with a Single Volume Controller CAUTION: If the MPA 152 MD is used in this configuration, it is the responsibility of the user to ensure that the system complies with the requirements of the IEC 60601-1-1 system standard. If there are any questions or doubts, contact the Extron Support Department.
  • Page 13: Audio Output

    4 and on page 5 for important information about connecting wires to captive screw connectors. CAUTION: Do not short the + and - outputs to each other, as this will damage the amplifier. MPA 152 MD • Panels and Cabling...
  • Page 14: Setup And Operation

    Setup and Operation Front Panel Features This section describes how to use the controls on the MPA 152 MD front panel (shown in figure 6 below) to configure the amplifier and how to set up the remote control options. LEVEL...
  • Page 15: Setting Bass And Treble

    There are a variety of options for a projector without variable audio outputs, or for a system designed to control the volume of the MPA 152 MD directly. See page 5 for more information about Wiring for remote control.
  • Page 16: Preventative Inspection And Maintenance

    MPA 152 MD • Setup and Operation...
  • Page 17: Specifications

    Control port ........(1) 3.5 mm captive screw connector, 3 pole Pin configuration ......Pin 1 = +10 VDC, 50 mA (max.), pin 2 = volume/mute (variable voltage), pin 3 = GND Volume control voltage range ..0 V (mute) to 10 V (maximum volume) MPA 152 MD • Specifications...
  • Page 18: Symbols Used In The Specifications

    Warranty ........3 years parts and labor NOTES: All nominal levels are at ±10%. Specifications are subject to change without notice. Symbols Used in the Specifications AC units DC positive voltages DC negative voltages Earth ground Direct Current Volts Amps milliamps MPA 152 MD • Specifications...
  • Page 19: Included Parts And Optional Accessories

    Included Parts and Optional Accessories This section shows the parts that are provided with the MPA 152 MD and also lists the optional accessories that are available from Extron. Included Parts Description Part Number MPA 152 MD 43-186-01 External 12 VDC, 3 A power supply...
  • Page 20: Mounting

    Mounting The MPA 152 MD amplifier should be placed on a desk or tabletop. Attach the four provided rubber feet to the bottom of the unit and place it in any convenient location. MPA 152 MD • Mounting...
  • Page 21: Extron Warranty

    In the event of malfunction during the warranty period attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components, to whatever extent it shall deem necessary to restore said product...
  • Page 22: Input Level

    Inside Asia Only +81.3.3511.7656 FAX Inside China Only +971.4.2991880 FAX Inside USA/Canada Inside USA/Canada Inside Europe Only Only Only +65.6383.4400 +86.21.3760.1568 +31.33.453.4040 +65.6383.4664 FAX +86.21.3760.1566 FAX +1.714.491.1500 +1.919.863.1794 +31.33.453.4050 FAX +1.714.491.1517 FAX +1.919.863.1797 FAX © 2010 Extron Electronics. All rights reserved. www.extron.com...

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