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Yamaha MG16/6FX Service Manual

Yamaha MG16/6FX
93 pages
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HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K338 ’05.08
011781
MIXING CONSOLE
SPECIFICATIONS (総合仕様)............................................... 3/5
DIMENSIONS (寸法図)........................................................... 7
PANEL LAYOUT (パネルレイアウト)...................................... 8
CIRCUIT BOARD LAYOUT & WIRING
(ユニットレイアウト&結線図).............................................. 12
DISASSEMBLY PROCEDURE (分解手順)............................. 14
LSI PIN DESCRIPTION (LSI端子機能表).............................. 19
IC BLOCK DIAGRAM (ICブロック図).................................. 21
CIRCUIT BOARDS (シート基板図)........................................ 22
INSPECTIONS (検査)....................................................... 30/36
PARTS LIST
BLOCK DIAGRAM & LEVEL DIAGRAM
(ブロックダイアグラム&レベルダイアグラム)
OVERALL CIRCUIT DIAGRAM (総回路図
CONTENTS (目次)
200306-49800
PA
SERVICE MANUAL
A manufacture number should use this
manual with goods of 9 or more figures.
(本マニュアルは、製造番号が9桁以上の商
品でご使用ください。)
The example of a manufacture number.
(製造番号例)
JCLJ01001
UCCLJ01001
CHNCL01001
9-11 figures
(9〜11桁)
The service manual of PA 011678 should
be used for the goods whose manufacture
number is 7 figures.
(製造番号が7桁の商品は、PA011678の
サービスマニュアルをご使用ください。)
The example of a manufacture number.
(製造番号例)
LK01001
7figures
(7桁)

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Yamaha MG16/6FX Specifications

General IconGeneral
TypeAnalog Mixer
Number of Channels16
Phantom PowerYes
Phantom Power Detail+48V
Faders60 mm
Line Inputs16
Other Inputs2 (Stereo)
EQ Bands3-band EQ
Aux Sends2
EffectsYes
Effects ProcessorSPX Digital Effects (24-bit)

Summary

Important Safety and Service Notices

General Service Precautions

Adherence to safety procedures is crucial for preventing injury and product damage.

Chemical Content Warning

Notice regarding lead in solder and other chemicals in components.

United Kingdom Plug and Cord Connection Notice

Guidance on wiring colors for UK mains plug and cord connection.

General Specifications Overview

Frequency Response and Distortion

Specifies frequency response range and THD+N for ST OUT.

Hum and Noise Specifications

Details residual output noise and equivalent input noise levels.

Maximum Voltage Gain

Lists voltage gain for various input/output combinations.

Input Gain and High-Pass Filter

Details monaural/stereo input gain control and high-pass filter.

Crosstalk and Equalization

Specifies crosstalk levels and monaural/stereo EQ variations.

Graphic EQ and Digital Effects

Details graphic equalizer bands and digital effect programs.

Peak Indicators and Level Meters

Describes peak LED indicators and stereo level meters.

Phantom Power and Accessories

Notes phantom power supply and included accessories.

Power Supply, Dimensions, and Weight

Specifies power supply voltage, unit dimensions, and weight.

Input and Output Specifications

Input Specifications Details

Details gain, impedance, sensitivity, and connectors for MIC/LINE inputs.

Output Specifications Details

Details rated level, clipping, and connectors for ST, GROUP, AUX outputs.

Unit Dimensions and Physical Layout

Top and Side View Dimensions

Provides top and side view diagrams with overall dimensions.

Front and Depth View Dimensions

Shows front view and depth dimensions of the unit.

Control Panel Layout and Connectivity

Channel Control Section Layout

Details the layout and function of channel control knobs and switches.

Master Control Section Layout

Details the layout and function of master control knobs and switches.

Rear Input/Output Section Layout

Diagrams the rear panel input and output connectors.

Connector Pin Assignments and Polarities

MIC and ST OUT Connector Details

Details pin assignments for MIC and ST OUT connectors.

LINE, GROUP, AUX, EFFECT Connector Details

Specifies pin assignments for LINE, GROUP, AUX, EFFECT connectors.

INSERT I/O, PHONES, RETURN Connector Details

Details pin assignments for INSERT I/O, PHONES, and RETURN connectors.

Circuit Board Schematics and Wiring Diagrams

Circuit Board Layout Overview

Diagrams showing component placement on main circuit boards.

Power Switch and AC Connector Wiring

Illustrates the wiring for the power switch and AC connector.

Main and Jack Circuit Board Wiring

Details wiring connections between MAIN and JACK circuit boards.

Wiring to PS Circuit Board

Shows the wiring connections to the PS (Power Supply) circuit board.

Disassembly and Component Removal Procedures

Rack Mount Angle and Bottom Cover Removal

Procedure for removing rack mount angles and bottom cover.

PS Circuit Board and Heat Sink Removal

Steps to remove the PS circuit board and heat sink.

Side Cover (L/R) Removal

Instructions for removing the left and right side covers.

Power Switch and AC Connector Removal

Steps for removing the power switch and AC connector.

DSP Circuit Board Removal

Procedure for removing the DSP circuit board.

Main and Jack Circuit Board Removal

Steps to remove MAIN and JACK circuit boards.

LSI Pin Descriptions and Functions

ZFX-2 CPU Pinout Details

Details the pin assignments and functions of the ZFX-2 CPU.

MCU Pinout Details

Pin descriptions for the MCU (Microcontroller Unit).

ADA Pinout Details

Pin assignments for the PCM3001E/2K ADA (Analog-to-Digital).

Integrated Circuit Block Diagrams

Hex Inverter and Dual Op-Amp IC Diagrams

Block diagrams for Hex Inverter and Dual Operational Amplifiers.

LED Driver and Quad Op-Amp IC Diagrams

Block diagrams for LED Driver and Quad Operational Amplifiers.

Dual Op-Amp IC Diagrams

Block diagrams for Dual Operational Amplifiers.

Circuit Board Schematics

DSP Circuit Board Schematics

Schematic diagram showing component layout for the DSP board.

MAIN Circuit Board Schematics

Schematic diagram showing component layout for the MAIN board.

JACK 1/2 Circuit Board Schematics

Schematic diagram showing component layout for the JACK 1/2 board.

JACK 2/2 Circuit Board Schematics

Schematic diagram showing component layout for the JACK 2/2 board.

PS Circuit Board Schematics

Schematic diagram showing component layout for the PS board.

Inspections and Measurement Procedures

Measurement Conditions and Initial Settings

Specifies environmental factors and default control settings.

Input Controls and Stereo Settings

Details settings for input, stereo, and EQ controls.

Digital Effects and Master Control Settings

Configuration for digital effects, master send/return, and EQ.

Indicator and Gain Verification

Checks indicator lights and gain level accuracy.

Channel EQ, GEQ, and Crosstalk Verification

Verifies channel EQ/GEQ performance and crosstalk levels.

Peak LED, Meter, Distortion, Output, Noise Checks

Covers LED indicators, distortion, output levels, and noise measurements.

Phantom Power and Digital Effect Checks

Tests phantom power output and digital effect performance.

Parts List and Assembly Details

Overall Assembly Overview

Provides an overview of the entire product assembly.

Electrical Parts Inventory

Detailed list of all electrical components with part numbers.

Resistor and Capacitor Lists

Detailed listing of resistors and capacitors by reference number.

Transistor and Switch Lists

Listings for transistors, LEDs, and push switches.

Variable Resistor and Other Component Lists

Details variable resistors, slide potentiometers, and other components.

Circuit Diagrams and Block Diagrams

Block and Level Diagram

High-level block diagram showing signal flow.

Overall Circuit Diagram - Main Section

Detailed circuit schematics for the MAIN board.

Overall Circuit Diagram - Jack Sections

Circuit schematics for JACK 1/2 and JACK 2/2 boards.

Overall Circuit Diagram - DSP and PS Sections

Circuit schematics for DSP and PS boards.

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