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Yamaha T5n - Service Manual

Yamaha T5n
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SERVICE MANUAL
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 (ユニットレイアウト.................................... 9
DISASSEMBLY PROCEDURES (分解手順)............................................. 10
LSI PIN DESCRIPTION (LSI端子機能表).................................................. 18
IC BLOCK DIAGRAM (ICブロック図)...................................................... 20
CIRCUIT BOARDS (シート基板図)........................................................... 23
INSPECTIONS (検査).......................................................................... 36/45
PST CIRCUIT BOARD REPAIR GUIDE
(PSTシート故障修理ガイド)................................................................ 54/59
PARTS LIST
IC & DIODE FIGURES (外形図
BLOCK DIAGRAM (ブロックダイアグラム)
CIRCUIT DIAGRAM (回路図)
CONTENTS (目次)
PA 011844
Copyright (c) Yamaha Corporation. All rights reserved. 06.12
HAMAMATSU, JAPAN
このサービスマニュアルはエコパルプ
(ECF:無塩素系漂白パルプ)を使用しています。
This document is printed on chlorine free (ECF) paper.
T5n: 200612-682500
T4n: 200612-577500
T3n: 200612-504000
T5n
T4n
T3n
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Summary

Important Notices

General Warnings and Important Notices

Covers safety, chemical content, and general warnings.

UK Plug and Cord Connection

Specific instructions for connecting the plug and cord in the UK.

Specifications

T5 n Specifications

Detailed technical specifications for the T5n model.

T4 n Specifications

Detailed technical specifications for the T4n model.

T3 n Specifications

Detailed technical specifications for the T3n model.

Dimensions

Panel Layout

Front Panel Layout

Identification of controls and indicators on the front panel.

Rear Panel Layout

Identification of connectors and terminals on the rear panel.

Circuit Board Layout

Disassembly Procedures

Top Cover Removal

Step-by-step guide to remove the top cover.

Left PA Unit Disassembly

Procedure to remove the PA unit from the left side.

Right PA Unit Disassembly

Procedure to remove the PA unit from the right side.

Rear Assembly Disassembly

Step-by-step guide to remove the rear assembly.

INT;INSWT Circuit Board Removal

Procedure to remove INT and INSWT circuit boards.

Front Assembly Disassembly

Step-by-step guide to remove the front assembly.

DC Fan Assembly Disassembly

Procedure to remove the DC fan assembly.

PSWT;FPT;ATTT Circuit Board Removal

Procedure to remove PSWT, FPT, and ATTT circuit boards.

PST;CPUT Circuit Board Removal

Procedure to remove PST and CPUT circuit boards.

LSI Pin Description

IC Block Diagrams

Circuit Board Diagrams

Inspections

Measurement Conditions

Specifies environment, power source, and instruments for testing.

LED Inspection

Checks the status of LEDs and fan rotation.

Inspection and Adjustment

Covers fan, LED, muting, idling current, DC voltage, efficiency, gain, and frequency response.

Distortion and Maximum Output Tests

Procedures for checking distortion and maximum output levels.

Channel Separation, Noise Level, Stability, Protection Circuit

Tests for channel separation, noise, stability, and protection circuits.

PC Limiter, Compressor, Signal LED Tests

Checks limiter, compressor, and signal LED functionality.

BRIDGE Mode Inspection

Preparation and Inspection

Steps for preparing and performing inspections in BRIDGE mode.

Data Port Inspection

Preparation and Settings

Connection and software setup for data port testing.

Inspections (Initial, Remote, Model ID)

Performing initial, remote, and model ID checks.

Automatic Inspection Tests (10-40)

Details of automated tests (10-40) for performance verification.

Automatic Inspection Tests (50-70)

Details of automated tests (50-70) for performance verification.

Automatic Inspection Tests (80-90)

Details of automated tests (80-90) for performance verification.

Test Judgment and Results

Interpreting test results and identifying failures.

PST Circuit Board Repair Guide

Applicable Circuit Boards

Identifies circuit boards covered by this repair guide.

Electrical Performance Checks

Procedures for verifying electrical performance parameters.

Discharge Safety Procedures

Safety steps for discharging capacitors before handling boards.

Example of Repair

Repair Instructions

General instructions for troubleshooting and component replacement.

Repair Flowchart

AC Voltage and Waveform Checks

Flowchart for checking AC voltage and signal waveforms.

Parts List

Overall Assembly Parts

List of parts for the complete amplifier assembly.

Rear Assembly Parts

List of parts specific to the rear assembly.

Front Assembly Parts

List of parts specific to the front assembly.

PA Unit Parts

List of parts for the PA unit.

Electrical Parts

List of individual electrical components used in the amplifier.

Circuit Diagrams

IC & Diode Figures

Visual representations of integrated circuits and diodes.

Overall Assembly Wiring

Diagram illustrating the internal wiring of the entire unit.

Block Diagram

High-level functional overview of the amplifier's internal blocks.

Overall Circuit Diagrams

Collection of main circuit diagrams for different sections.

Block Diagram Detailed

Circuit Diagram 1;7

Circuit Diagram 2;7

Circuit Diagram 3;7

Circuit Diagram 4;7

Circuit Diagram 5;7

Circuit Diagram 6;7

Circuit Diagram 7;7

Summary

Important Notices

General Warnings and Important Notices

Covers safety, chemical content, and general warnings.

UK Plug and Cord Connection

Specific instructions for connecting the plug and cord in the UK.

Specifications

T5 n Specifications

Detailed technical specifications for the T5n model.

T4 n Specifications

Detailed technical specifications for the T4n model.

T3 n Specifications

Detailed technical specifications for the T3n model.

Dimensions

Panel Layout

Front Panel Layout

Identification of controls and indicators on the front panel.

Rear Panel Layout

Identification of connectors and terminals on the rear panel.

Circuit Board Layout

Disassembly Procedures

Top Cover Removal

Step-by-step guide to remove the top cover.

Left PA Unit Disassembly

Procedure to remove the PA unit from the left side.

Right PA Unit Disassembly

Procedure to remove the PA unit from the right side.

Rear Assembly Disassembly

Step-by-step guide to remove the rear assembly.

INT;INSWT Circuit Board Removal

Procedure to remove INT and INSWT circuit boards.

Front Assembly Disassembly

Step-by-step guide to remove the front assembly.

DC Fan Assembly Disassembly

Procedure to remove the DC fan assembly.

PSWT;FPT;ATTT Circuit Board Removal

Procedure to remove PSWT, FPT, and ATTT circuit boards.

PST;CPUT Circuit Board Removal

Procedure to remove PST and CPUT circuit boards.

LSI Pin Description

IC Block Diagrams

Circuit Board Diagrams

Inspections

Measurement Conditions

Specifies environment, power source, and instruments for testing.

LED Inspection

Checks the status of LEDs and fan rotation.

Inspection and Adjustment

Covers fan, LED, muting, idling current, DC voltage, efficiency, gain, and frequency response.

Distortion and Maximum Output Tests

Procedures for checking distortion and maximum output levels.

Channel Separation, Noise Level, Stability, Protection Circuit

Tests for channel separation, noise, stability, and protection circuits.

PC Limiter, Compressor, Signal LED Tests

Checks limiter, compressor, and signal LED functionality.

BRIDGE Mode Inspection

Preparation and Inspection

Steps for preparing and performing inspections in BRIDGE mode.

Data Port Inspection

Preparation and Settings

Connection and software setup for data port testing.

Inspections (Initial, Remote, Model ID)

Performing initial, remote, and model ID checks.

Automatic Inspection Tests (10-40)

Details of automated tests (10-40) for performance verification.

Automatic Inspection Tests (50-70)

Details of automated tests (50-70) for performance verification.

Automatic Inspection Tests (80-90)

Details of automated tests (80-90) for performance verification.

Test Judgment and Results

Interpreting test results and identifying failures.

PST Circuit Board Repair Guide

Applicable Circuit Boards

Identifies circuit boards covered by this repair guide.

Electrical Performance Checks

Procedures for verifying electrical performance parameters.

Discharge Safety Procedures

Safety steps for discharging capacitors before handling boards.

Example of Repair

Repair Instructions

General instructions for troubleshooting and component replacement.

Repair Flowchart

AC Voltage and Waveform Checks

Flowchart for checking AC voltage and signal waveforms.

Parts List

Overall Assembly Parts

List of parts for the complete amplifier assembly.

Rear Assembly Parts

List of parts specific to the rear assembly.

Front Assembly Parts

List of parts specific to the front assembly.

PA Unit Parts

List of parts for the PA unit.

Electrical Parts

List of individual electrical components used in the amplifier.

Circuit Diagrams

IC & Diode Figures

Visual representations of integrated circuits and diodes.

Overall Assembly Wiring

Diagram illustrating the internal wiring of the entire unit.

Block Diagram

High-level functional overview of the amplifier's internal blocks.

Overall Circuit Diagrams

Collection of main circuit diagrams for different sections.

Block Diagram Detailed

Circuit Diagram 1;7

Circuit Diagram 2;7

Circuit Diagram 3;7

Circuit Diagram 4;7

Circuit Diagram 5;7

Circuit Diagram 6;7

Circuit Diagram 7;7

Yamaha T5n Specifications

General IconGeneral
TypePower Amplifier
Channels2
Frequency Response20Hz - 20kHz
Input Impedance20 kOhms (Balanced), 10 kOhms (Unbalanced)
THD+N0.1%
Signal-to-Noise Ratio100dB
Damping Factor≥200
Connectors (Input)XLR, TRS
Connectors (Output)Binding Posts, Speakon
Dimensions480 x 456 mm
Inputs2
Outputs2

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