McIntoshメーカーMC-1201の使用説明書/サービス説明書
ページ先へ移動 of 20
McIntosh Laboratory , Inc. 2 Chambers S treet Binghamton, New Y ork 13903-2699 Phone: 607-723-3512 F A X: 6 07 -7 24- 05 49 Owner s Manual MC1201 MC1201 Power Amplifier.
2 IMPOR T ANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERA TING THIS EQUIPMENT . W ARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
3 A polarized plug has two blades with one wider than the other . A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety . If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
4 T able of Content s General Notes Caution: The MC1201 Amplifier weight is 147 pounds (66.7 kilograms). It requires two or more persons to safely handle when moving the amplifier . 1. The following Connecting Cable is available from the McIntosh Parts Department: Power Control Cable Part No.
5 Introduction, Performance Features and Dimensions The following dimensions can assist in determining the best location for your MC1201. There is additional infor- mation on the next page pertaining to installing the MC1201 into cabinets.
6 Inst allation Caution: The MC1201 Amplifier weight is 147 pounds (66.7 kilograms). It requires two or more persons to safely handle when moving the amplifier . The MC1201 can be placed upright on a table or shelf, standing on its four feet. The four feet may be removed from the bottom of the MC1201 when it is custom installed as outlined below .
7 UNBALANCED INPUT for an audio cable from a preamplifier or control cen- ter audio output CIRCUIT BREAKER Press to reset if the am- plifier will not power up Rear Panel Connections and Switch Connect the MC1201 power cord to a live AC outlet.
8 How to Connect the MC1201 Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MC1201 Amplifier until after the Loudspeaker Connections have been made and the supplied protective T erminal Connections Cover has been installed.
9 How to Connect the MC1201 T o AC Outlet 4 ohm Loudspeaker McIntosh C200C Controller McIntosh C200P Preamplifier Caution: The Loudspeaker Negative Connections are above chassis ground. Do not combine any connections together , ground them or connect with another MC1201.
10 Front Panel Displays and Controls METER indicates the Power Output of the amplifier METER Switch selects the display modes of the Power Output Meter POWER GUARD LED lights when the amplifier POWER .
11 How to Operate the MC1201 How to Operate the MC1201 Power On T o have the MC1201 automatically turn On or Of f when a control center turns on or of f, rotate the power switch to the remote position. For manual op- eration, rotate the power switch to the On or Off position as de- sired.
12 T echnical Description McIntosh Laboratory , the company who introduced the world s first amplifier that could be called High Fidelity, has done it again. The McIntosh engineering staff has cre- ated a power amplifier without compromise, using the most advanced McIntosh circuit design concepts.
13 T echnical Description Design Philosophy The design philosophy incorporated in the MC1201 in- volved several different techniques, all based on sound sci- entific logic. Every stage of voltage or current amplifica- tion must be as linear as possible prior to the use of nega- tive feedback.
14 Figure 16 Input T est Signal The special Balanced Dual Core Autoformer creates an ideal match between the power amplifier output stage and the loudspeaker . A McIntosh amplifier with an Autoformer can be used to safely drive multiple speakers without re- ducing the life expectancy of the power amplifier .
15 T echnical Description, cont Figure 18 W ith Power Guard Figure 17 W ithout Power Guard able, since it can damage valuable loudspeaker sys- tem tweeters. Y ou will never experience the harsh and damaging dis- tortion due to clipping. The Power Guard cir- cuit is a waveform com- parator , monitoring both the input and output waveforms.
16.
17 Notes.
18 Specifications Specifications Power Output Minimum sine wave continuous average power output is: 1,200 watts into 2 ohm load 1,200 watts into 4 ohm load 1,200 watts into 8 ohm load Rated Power Band 20Hz to 20,000Hz T otal Harmonic Distortion Maximum T otal Harmonic Distortion at any power level from 250 milliwatts to rated power output is: 0.
19 Packing Instructions In the event it is necessary to repack the equipment for shipment, the equipment must be packed exactly as shown below . It is very important that the four feet are attached to the bottom of the equipment. This will ensure the proper equipment location on the bottom foam pad.
McIntosh Part No. 040727 McIntosh Laboratory , Inc. 2 Chambers Street Binghamton, NY 13903.
デバイスMcIntosh MC-1201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：
McIntosh MC-1201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McIntosh MC-1201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。McIntosh MC-1201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。McIntosh MC-1201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。
McIntosh MC-1201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McIntosh MC-1201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、McIntosh MC-1201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McIntosh MC-1201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。
