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Yamaha MSR400 Service Manual

Yamaha MSR400
30 pages
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SERVICE MANUAL
CONTENTS(目次)
SPECIFICATIONS(総合仕様)............................................................3
PERFORMANCE GRAPH
(特性図)...................................................4
PANEL LAYOUT
(パネルレイアウト)..................................................4
CIRCUIT BOARD LAYOUT
(ユニットレイアウト)..............................5
DIMENSIONS
(寸法図)......................................................................5
WIRING DIAGRAM
(結線図)..............................................................5
IC BLOCK DIAGRAM
(ICブロック図)................................................6
DISASSEMBLY PROCEDURES
(分解手順)......................................6
CIRCUIT BOARDS
(シート基板図)...................................................10
INSPECTIONS
(検査)......................................................................14
PARTS LIST
BLOCK DIAGRAM
(ブロックダイアグラム)
OVERALL CIRCUIT DIAGRAM(回路図)
POWERED SPEAKER
MSR400
PA
011777
200505-86100
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K185 ’05.05
のサー ルは パル
(ECF 無塩素系漂白パル 使用 す。
This document is printed on chlorine free (ECF) paper.

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Yamaha MSR400 Specifications

General IconGeneral
TweeterYes
Speaker type2-way
Number of drivers1
Speaker placementFloor
Audio output channels1.0 channels
Woofer diameter (imperial)12 \
Subwoofer driver diameter (imperial)1.75 \
Product colorBlack
LED indicatorsPower
Housing materialPolypropylene (PP)
Recommended usageSpeaker set unit
Frequency range55 - 20000 Hz
RMS rated power400 W
Crossover frequency1600 Hz
Microphone sensitivity-36 dB
Connectivity technologyWired
Power source typeAC
Power consumption (typical)110 W
Weight and Dimensions IconWeight and Dimensions
Depth351 mm
Width406 mm
Height652 mm
Weight23000 g

Summary

Specifications

General Specifications

Detailed technical specifications including type, speaker units, frequency range, and output levels.

Amplifier Unit Specifications

Specifications related to the amplifier section, including power output, input sensitivity, and controls.

Performance Graph

Panel Layout

Rear Panel Layout

Illustration and labeling of controls and connectors on the rear panel of the speaker.

Technical Diagrams

Dimensions

Provides the physical dimensions of the speaker unit in mm.

Wiring Diagram

Illustrates the internal wiring connections between components.

IC Block Diagram

Disassembly Procedures

Disassembly Steps

Covers tool requirements, cabinet separation, and removal of amplifier, woofer, and tweeter components.

Circuit Board Layouts

AMP Circuit Board Component Layout

Diagram showing the component layout of the amplifier circuit board.

MIX and INPUT Circuit Board Component Layouts

Diagrams illustrating component placements for MIX and INPUT circuit boards.

SW and AC INLET Circuit Board Component Layouts

Diagrams illustrating component placements for SW and AC INLET circuit boards.

Inspections

Inspection Procedures

Details measurement conditions, muting time, idling current, general electrical tests, and protection circuit tests.

Parts List

Overall Assembly

Block Diagram

Overall Circuit Diagram (Input, Mix)

Overall Circuit Diagram (Amp 1/2)

Overall Circuit Diagram (Amp 2/2, AC Inlet, SW)

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