Extron electronicメーカーMPA 401の使用説明書/サービス説明書
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68-1436-01 Rev. E 06 13 MPA 401 Series User Guide Audio Mini Power Amplifiers.
Safety Instructions • English W ARNING: This symbol, D , when used on the product, is intended to alert the user of the presence of uninsulated danger ous voltage within the product’ s enclosure that may pr esent a risk of electric shock.
FCC Class B Notice This equipment has been tested and found to comply with the limits for a ClassB digital device, pursuant to part15 of the FCC rules. These limits provide reasonable pr otection against harmful interfer ence in a residential installation.
Conventions Used in this Guide Notifications the following are used: A TTENTION: Attention indicates a situation that may damage or destroy the pr oduct or associated equipment. NOTE: A note draws attention to important information. Specications A vailability Product specifications ar e available on the Extr on website, www .
Contents Introduction .................................................... 1 Important Safety Instructions .............................. 1 MP A 401-70V and MP A 401-100V Description ... 2 MP A 401-70V and MP A 401-100V Features ....... 3 Rear Panel and Cabling .
MP A 401-70V and MP A 401-100V • Contents vi.
Intr oduction This guide contains information about the Extron MP A 401-70V and MP A 401-100V mini power amplifiers with instructions for experienced installers on how to install, configure, and operate the equipment.
MP A 401-70V and MP A 401-100V Description The Extron MP A 401-70V and MP A 401-100V integrated mini power amplifiers provide mono amplification for speaker systems that requir e compact and economical audio solutions. Both amplifiers accept balanced or unbalanced, stereo or mono inputs and provide a summed mono output.
MP A 401-70V and MP A 401-100V Features Patented CDRS (Class D Ripple Suppression) — CDRS is an Extr on patented technology that eliminates high frequency switching ripple and EMI emissions found in all Class D amplifiers.
Rear Panel and Cabling This section describes the rear panel featur es and cabling of the MP A401-70V and MP A401-100V . • Rear Panel • Power Input • Audio Inputs • Remote Input Connector • Speaker Connections Rear Panel The illustration below shows the rear panel of the amplifiers: POWER 12V 1.
Power Input a Power receptacle — A 36 W desktop power supply is pr ovided. A TTENTION: When the PS 1230 power supply is connected to the MP A 401, it must not be shared with any other devices. Po wer Receptacle DC Po wer Cord Captive Scr ew Connector POWER 12V 1.
Audio Inputs Use the rear panel r eceptacles (see figur e at right) to connect audio sources to the amplifier . W ire the connectors as shown below . The balloon numbers refer to the figure to the right. NOTE: Thegroundpinsoftheinputr eceptacles maybelabeled or (seetheimagestothe right).
Remote Input Port e Remote input port — This 3-pin, captive screw port allows a wall-mounted audio controller to control volume and mute levels r emotely (see Remote Control Options on page 12 if using a MediaLink controller).
Controlling multiple ampliers with one volume contr oller Several MP A 401 units can be daisy-chained so that one volume controller can simultaneously regulate the volume of all the amplifiers.
Speaker Connections f Speaker receptacle (see figur e 2) — Connect the speakers to the speaker receptacle using the 2-pole, 5 mm screw-lock captive scr ew connector (MP A 401-100V shown at right). NOTES: • The mono audio speaker receptacle may be labeled in one of two ways (see the diagrams above).
Setup and Operation This section provides information about the fr ont panel featur es and operation of the MP A401-70V and MP A 401-100V : • Front Panel Featur es • Setting Input Level .
Setting Input Level Adjust the input level as follows: 1. If necessary , unplug the remote connector fr om the unit. 2. If connecting the amplifier to a system with adjustable volume, set the volume to its lowest point. Then adjust the level potentiometer fully counterclockwise to its minimum setting.
Remote Contr ol Options INPUTS OUTP UT 50/60 Hz 100-240V .3A 2 1 3 4 L R L R L R L R L R AUDIO VID 1 2 3 4 Y /VID B-Y H/ HV R /R-Y V G /Y B /B-Y RS-232 LAN RESET ACT LINK DVI-I YC SDI R-Y /C RGB/R-Y ,Y, B-Y/YC/ VID I N P U T O U T P U T I N P U T O U T P U T POWER 12V 1.
T roubleshooting Under differ ent cir cumstances, the front panel LED lights gr een or amber , which pr ovides diagnostic information. Amplier Fails to Exit Standby Mode Promptly Power LED Color Problem Description Problem Solution Amber Nooutputsignal.
Refer ence Material This section of the user guide contains information about Mounting the MP A 401. Mounting Plenum Placement The MP A 401-70V and MP A 401-100V amplifiers meet UL 2043 requir ements for heat and smoke release. They can be installed in the ceiling, out of sight, with r educed risk of theft.
A TTENTION: Use only the two holes indicated in figure 9 for mounting the MP A401. The other four holes anchor stand-offs for the internal circuit boards; using them may damage the amplifier and will not provide secur e mounting for the unit. #4-40 Thread Th ru Ra ck Mounting #4-40 Thread Th ru Ra ck Mounting 4.
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デバイスExtron electronic MPA 401の購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Extron electronic MPA 401をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはExtron electronic MPA 401の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Extron electronic MPA 401の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Extron electronic MPA 401で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Extron electronic MPA 401を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はExtron electronic MPA 401の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Extron electronic MPA 401に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちExtron electronic MPA 401デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。