Page 2 - 警告; 注 意; Extron; 注意; Safety Instructions
Safety Instructions • English WARNING: This symbol, D , when used on the product, is intended to alert the user of the presence of uninsulated dangerous voltage within the product’s enclosure that may present a risk of electric shock. ATTENTION: This symbol, I , when used on the product, is intended...
Page 3 - FCC Class B Notice; Reorient or relocate the receiving antenna.; Extron Safety and; on the Extron website.; © 2013 Extron Electronics. All rights reserved.; S3 Service Support Solutions
FCC Class B Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can rad...
Page 4 - Conventions Used in this Guide; Notifications; the following are used:; Specifications Availability; Product specifications are available on the Extron website,
Conventions Used in this Guide Notifications the following are used: ATTENTION: Attention indicates a situation that may damage or destroy the product or associated equipment. NOTE: A note draws attention to important information. Specifications Availability Product specifications are available on t...
Page 5 - Contents; Introduction; Amplifier Fails to Exit Standby Mode; Mounting; MPA 152 Plus • Contents
Contents Introduction ............................................................ 1 Important Safety Instructions .............................. 1About the MPA 152 Plus .................................... 2MPA 152 Plus Features ...................................... 2 Panels and Cabling .............
Page 7 - Important Safety Instructions; MPA 152 Plus • Introduction
Introduction This manual contains information about the Extron MPA 152 Plus mini power amplifier with instructions for experienced installers on how to install, configure, and operate the equipment. Unless otherwise specified, in this manual “amplifier” or “MPA” refer to the MPA 152 Plus. This secti...
Page 8 - About the MPA 152 Plus; Typical Application for the MPA 152 Plus; MPA 152 Plus Features; — The 90 dB unweighted signal‐to‐noise ratio allows; ENERGY STAR qualified amplifier; — The MPA 152 Plus conserves energy and reduces
About the MPA 152 Plus The MPA 152 Plus is an ENERGY STAR qualified amplifier with an Extron exclusive, highly efficient, advanced Class D amplifier design. It also features patented CDRS (Class D Ripple Suppression) technology that provides a smooth, clean audio waveform and an improvement in signa...
Page 9 - figure 7
Defeatable auto power-down timer for 24/7 applications — Ensures that the amplifier is always active for 24/7 operation in critical applications, while still retaining the ENERGY STAR qualification. Extron patented CDRS - Class D Ripple Suppression — CDRS is an Extron patented technology that provid...
Page 10 - power; MPA 152 Plus Rear Panel Features; Power Connector; Power connector; desktop power supply.; MPA 152 Plus • Panels and Cabling
Panels and Cabling This section discusses the MPA 152 Plus rear panel features and cabling. MPA 152 Plus Rear Panel Features The rear panel of the MPA 152 Plus (shown in figure 2 below) allows the user to connect power (see below), audio input (see page 6), remote control (see page 7), and audio out...
Page 11 - Amplifier; Power Supply
Power Receptacle DC Power Cord Captive Screw Connector MPA 152 Plus Amplifier DC Power Outputs DO NOT USE AC Power Cord Tie Wrap Captive Screw Connector Power Supply Output Cord PS 1220 Power Supply POWER 12V 0.7A MAX Figure 3. Power Connector ATTENTION: • Always use a power supply supplied by or sp...
Page 12 - Audio Inputs; RCA Connector; Balanced Stereo Input; Balanced Mono Input; Unbalanced Mono Input
Audio Inputs Use the rear panel receptacles (see figure 4) to connect audio sources to the amplifier. Wire the connectors as shown below. L R L R INPUTS 2 4 3 Figure 4. Audio Inputs b RCA unbalanced stereo input connectors — These receptacles accept unbalanced, line level audio signals. The input ca...
Page 13 - Remote Control; Remote input connector; Wiring for remote control; REMO; Remote Control Wiring; Controlling multiple amplifiers with one volume controller; REM
Remote Control e Remote input connector — This 3‑pin, captive screw port allows an audio controller to control volume and mute levels remotely. See Remote Control Options on page 11 if using a MediaLink controller. Wiring for remote control Options for remote control include the Extron VC 50, VCM 10...
Page 14 - first; MPA 152 Plus unit only:; Regulating Multiple Amplifiers with a Single Volume Controller
To regulate multiple amplifiers with a single volume controller, follow these instructions: 1. Attach all three pins of the volume controller to the corresponding pins on the first MPA 152 Plus unit only: • Ground ( ) to ground (G) • Vol/Mute to C • 10 V to V. 2. Use jumper wires to connect the C (V...
Page 15 - Audio Output; Speaker receptacle; Left; MPA 152 Plus Summing Diagram; OUTPUT
Audio Output f Speaker receptacle — This 4‑pole, 5 mm screw lock captive screw receptacle is used to connect the amplifier to the speakers.With an 8 ohm load, the amplifier produces up to 8 watts per channel. With a 4 ohm load, the amplifier produces up to 15 watts per channel.See the attention (pag...
Page 16 - Front Panel Features and Operation; MPA 152 Plus Front Panel; Setting Input Level; MPA 152 Plus • Setup and Operation
Setup and Operation This section discusses: • Front Panel Features and Operation • Remote Control Options • Defeating the Auto Power-down Timer • Troubleshooting Front Panel Features and Operation This section describes how configure the MPA 152 Plus, using the front panel controls and how to set up...
Page 17 - Setting Bass and Treble; Adjust the MPA 152 Plus bass and treble as follows:; Remote Control Options; PC; Mini Power Amplifier; Typical Application for the MPA 152 Plus, Using Remote Control; — When using a projector with variable audio; Extron volume controllers; — Extron provides a range of volume and mute controllers; — For a projector with variable audio output, connect
Setting Bass and Treble Adjust the MPA 152 Plus bass and treble as follows: 1. Use the Bass potentiometer to increase or decrease the bass shelving ±10 dB at 80 Hz and below. 2. Use the Treble potentiometer to increase or decrease the treble shelving ±10 dB at 10 kHz and above. NOTE: Turning the Bas...
Page 18 - Defeating the Auto Power-down Timer; Disconnect power from the amplifier.
Defeating the Auto Power-down Timer The auto power‑down timer determines whether or not the amplifier enters standby mode. The amplifier powers down if the input signal remains below the input signal detection threshold for about 25 minutes. The timer resets whenever the input signal exceeds the inp...
Page 19 - Front View, Showing the Location of Resistor R42; Re‐attach the top enclosure with the four screws removed in step 1.; Troubleshooting; Amplifier Fails to Exit Standby Mode Promptly; Amber; Amplifier Enters Standby Mode Too Early; Problem Description
Stereo to Dual MonoToggle Switch Level Potentiometer Resistor R42 Figure 10. Front View, Showing the Location of Resistor R42 4. Identify resistor R42 at the front of the bottom circuit board between the Stereo to Dual Mono toggle switch (to the left) and the Level potentiometer (to the right). The ...
Page 20 - Rack Mounting; UL Guidelines for Rack Mounting; Elevated operating ambient temperature; MPA 152 Plus • Mounting
Mounting This section provides information about the mounting options for the MPA 152 Plus. Rack Mounting UL Guidelines for Rack Mounting The following Underwriters Laboratories (UL) guidelines are relevant to the safe installation of this product in a rack: 1. Elevated operating ambient temperature...
Page 21 - Rack Mounting Procedure; Base of MPA 152 Plus to Show Mounting Holes; Back of the Rack Mounting; Other Mounting Options; Tabletop placement
Rack Mounting Procedure The unit can be mounted on a compatible rack system (optional). Follow the instructions provided with the shelf accessories. ATTENTION: Use only the two holes indicated in the diagram below for mounting the MPA 152 Plus. The other four holes anchor stand‑offs for the internal...
Page 22 - Extron Warranty; USA; xtron
Extron Headquarters +1.800.633.9876 (Inside USA/Canada Only)Extron USA - West Extron USA - East +1.714.491.1500 +1.919.850.1000 +1.714.491.1517 FAX +1.919.850.1001 FAX Extron Europe +800.3987.6673 (Inside Europe Only) +31.33.453.4040 +31.33.453.4050 FAX Extron Asia +65.6383.4400+65.6383.4664 FAX Ext...