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Yamaha MG32/14FX Service Manual

Yamaha MG32/14FX
154 pages
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MG24/14FX
MG32/14FX
1
SERVICE MANUAL
PA
011696
MG24/14FX: 200309-138000
MG32/14FX: 200309-188000
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K7781
’03.09
HAMAMATSU, JAPAN
CONTENTS
SPECIFICATIONS ................................................ 3/5
DIMENSIONS ............................................................ 7
PANEL LAYOUT ..................................... 8
CIRCUIT BOARD LAYOUT ................ 17
WIRING .................................................................. 18
DISASSEMBLY PROCEDURE ........ 23
DISASSEMBLY PROCEDURE ........ 35
LSI PIN DESCRIPTION ............................... 47
IC BLOCK DIAGRAM .................................. 50
CIRCUIT BOARDS ....................................... 51
INSPECTIONS ....................................................... 65/72
PARTS LIST
BLOCK DIAGRAM & LEVEL DIAGRAM
OVERALL CIRCUIT DIAGRAM
(目次)
MIXING CONSOLE
MG32/14FX MG24/14FX
総合仕様
寸法図
(パネルレイアウト)
(ユニットレイアウト)
(結線図)
(MG24/14FX分解手順)
(MG32/14FX分解手順)
(LSI端子機能表)
(ICブロック図)
(シート基板図)
(検査)
(ブロックダイアグラム&レベルダイアグラム)
(総回路図)

Table of Contents

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Yamaha MG32/14FX Specifications

General IconGeneral
TypeAnalog Mixer
Channels32
Aux Sends6
Line Inputs32
Buses4
Phantom Power+48V
OutputsStereo, Group, Aux, Monitor
Mic Inputs24
Effects2 built-in SPX digital effects processors

Summary

Important Notices and Warnings

Chemical Content Notice

Notice regarding lead in solder and chemicals in components.

United Kingdom Plug and Cord Connection

Instructions for connecting the mains plug and cord for UK use.

Warning: Special Components Replacement

Warning to replace special components with parts of equal specification.

Specifications

General Specifications

General technical specifications for the mixing console.

Input and Output Specifications

Detailed specifications for input and output connectors and levels.

Dimensions

Panel Layout

Channel Control Block

Description of the channel control section on the front panel.

Master Control Block

Description of the master control section on the front panel.

Rear Input/Output Block

Overview of input and output connectors on the rear panel.

Monaural Channels Section

Stereo Channels Section

Detailed layout and controls for stereo channels.

Stereo/Mono Section

Group Section

Layout and controls for group output sections.

Send Section

Return Section

Layout and controls for return signal sections.

Internal Digital Effects Section

Meter/Phones Section

2TR Input Section

Description of the 2-track input controls.

Talkback Section

Lamp Jack

Description of the LAMP jack connection.

Channel I/O Section

Details of channel input and output connectors.

Master I/O Section

Connector Polarities

Circuit Board Layout

Wiring Diagram

MG24/14FX Disassembly Procedure

1. Side Pad Removal

Procedure for removing the side pads and flat washers.

2. Bottom Cover Removal

Procedure for removing the bottom cover and its screws.

3. Side Cover Removal

Procedure for removing the left and right side covers.

4. Supports Installation

How to set supports to prevent circuit board distortion.

5. PS Circuit Board Removal

Steps to remove the PS circuit board and heat sink.

6. Power Transformer Removal

Procedure for removing the power transformer assembly.

7. DSP Circuit Board Removal

Steps to remove the DSP circuit board and shield case.

8. DSP Shield Base Removal

Procedure for removing the DSP shield base and trans base.

9. Push Switch and AC-IN Connector Removal

Steps to remove push switches and AC-IN connectors.

10. AC-IN Connector Removal

Steps for removing the AC inlet connector.

11. INJK Circuit Board Removal

Procedure for removing INJK circuit boards 1 and 2.

12. MASJK Circuit Board Removal

Steps to remove the MASJK circuit board.

13. IN Circuit Board Removal

Procedure for removing IN circuit boards 1, 2, and 3.

13-4 IN Circuit Board 2 Removal

Detailed steps for removing IN circuit board 2.

14. MAS 1/4 to 4/4 Circuit Boards Removal

Procedure for removing MAS circuit boards 2/4, 3/4, and 4/4.

MG32/14FX Disassembly Procedure

1. Side Pad Removal

Procedure for removing the side pads and flat washers.

2. Bottom Cover Removal

Procedure for removing the bottom cover and its screws.

3. Side Cover Removal

Procedure for removing the left and right side covers.

4. Supports Installation

How to set supports to prevent circuit board distortion.

5. PS Circuit Board Removal

Steps to remove the PS circuit board and heat sink.

6. Power Transformer Removal

Procedure for removing the power transformer assembly.

7. DSP Circuit Board Removal

Steps to remove the DSP circuit board and shield case.

8. DSP Shield Base Removal

Procedure for removing the DSP shield base and trans base.

9. Push Switch and AC-IN Connector Removal

Steps to remove push switches and AC-IN connectors.

10. AC-IN Connector Removal

Steps for removing the AC inlet connector.

11. INJK Circuit Board Removal

Procedure for removing INJK circuit boards 1, 2, and 3.

12. MASJK Circuit Board Removal

Steps to remove the MASJK circuit board.

13. IN Circuit Board Removal

Procedure for removing IN circuit boards 1, 2, and 3.

14. MAS 1/4 to 4/4 Circuit Boards Removal

Procedure for removing MAS circuit boards 2/4, 3/4, and 4/4.

LSI Pin Description

M30622MCA-1M3FP MCU Pin Description

Pin description for the M30622MCA-1M3FP MCU.

YSS910-S DSP6 Pin Description

Pin description for the YSS910-S DSP6.

YM3436DK DIR2 Pin Description

Pin description for the YM3436DK DIR2.

AK4522VF-E2 CODEC Pin Description

Pin description for the AK4522VF-E2 CODEC.

IC Block Diagram

74HCU04DT Hex Inverter IC Block Diagram

Block diagram for the 74HCU04DT Hex Inverter IC.

74HC08DT Quad 2 Input AND IC Block Diagram

Block diagram for the 74HC08DT Quad 2 Input AND IC.

NJM4558M Dual Operational Amplifier IC Block Diagram

Block diagram for the NJM4558M Dual Operational Amplifier IC.

NJM2068MD-T1 IC Block Diagram

Block diagram for the NJM2068MD-T1 IC.

NJM4580ED Dual Operational Amplifier IC Block Diagram

Block diagram for the NJM4580ED Dual Operational Amplifier IC.

NJM4556AL Dual Operational Amplifier IC Block Diagram

Block diagram for the NJM4556AL Dual Operational Amplifier IC.

LB1412M LED Driver IC Block Diagram

Block diagram for the LB1412M LED Driver IC.

Circuit Boards

DSP Circuit Board Component Layout

Diagram showing the component layout of the DSP circuit board.

INJK Circuit Board Component Layout

Diagram showing the component layout of the INJK circuit board.

IN Circuit Board Component Layout

Diagram showing the component layout of the IN circuit board.

MAS 1/4 Circuit Board Component Layout

Diagram showing the component layout of the MAS 1/4 circuit board.

MAS 2/4 Circuit Board Component Layout

Diagram showing the component layout of the MAS 2/4 circuit board.

MAS 3/4 Circuit Board Component Layout

Diagram showing the component layout of the MAS 3/4 circuit board.

MAS 4/4 Circuit Board Component Layout

Diagram showing the component layout of the MAS 4/4 circuit board.

MASJK Circuit Board Component Layout

Diagram showing the component layout of the MASJK circuit board.

PS Circuit Board Component Layout

Diagram showing the component layout of the PS circuit board.

Inspections

1. Scope

Defines the scope of the inspection specifications.

2. Power Supply

Instructions for using the correct power supply cord.

3. Power Indicator and Digital Effect Initialization

Procedure for checking power indicators and initializing digital effects.

4. Mixer Section Inspection

Procedures for inspecting mixer section functionality.

4.1 Preparation

Preparation steps for mixer section inspection, including load resistance.

LSI Pin Description

M30622MCA-1M3FP MCU Pin Description

Pin description for the M30622MCA-1M3FP MCU.

YSS910-S DSP6 Pin Description

Pin description for the YSS910-S DSP6.

YM3436DK DIR2 Pin Description

Pin description for the YM3436DK DIR2.

AK4522VF-E2 CODEC Pin Description

Pin description for the AK4522VF-E2 CODEC.

IC Block Diagram

74HCU04DT Hex Inverter IC Block Diagram

Block diagram for the 74HCU04DT Hex Inverter IC.

74HC08DT Quad 2 Input AND IC Block Diagram

Block diagram for the 74HC08DT Quad 2 Input AND IC.

NJM4558M Dual Operational Amplifier IC Block Diagram

Block diagram for the NJM4558M Dual Operational Amplifier IC.

NJM2068MD-T1 IC Block Diagram

Block diagram for the NJM2068MD-T1 IC.

NJM4580ED Dual Operational Amplifier IC Block Diagram

Block diagram for the NJM4580ED Dual Operational Amplifier IC.

NJM4556AL Dual Operational Amplifier IC Block Diagram

Block diagram for the NJM4556AL Dual Operational Amplifier IC.

LB1412M LED Driver IC Block Diagram

Block diagram for the LB1412M LED Driver IC.

Parts List

Destination Abbreviations

List of abbreviations used for model destinations.

Remarks and Part Number Notes

Notes on part numbers, interchangeability, and special characteristics.

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