Yamaha DSP-AX761 - User Manual

SERVICE MANUAL
101042
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal
injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized
YAMAHA Retailer or the appointed service representative.
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and
service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable
and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please
contact the distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
■ CONTENTS
TO SERVICE PERSONNEL .......................................... 2
FRONT PANELS ........................................................ 3–4
REAR PANELS .......................................................... 5–8
REMOTE CONTROL PANELS ...................................... 9
SPECIFICATIONS / 参考仕様 ................................ 10–12
INTERNAL VIEW ......................................................... 13
DISASSEMBLY PROCEDURES / 分解手順.......... 14–17
UPDATING FIRMWARE/
ファームウェアの書き込み..................................... 18–25
SELF DIAGNOSIS FUNCTION (DIAG)/
自己診断機能（ダイアグ）..................................... 26–52
AMP ADJUSTMENT/アンプ部調整 ........................... 53
DISPLAY DATA ..................................................... 54–55
IC DATA ................................................................. 56–70
BLOCK DIAGRAMS .............................................. 71–75
PRINTED CIRCUIT BOARDS................................ 76–88
PIN CONNECTION DIAGRAMS ............................ 89–91
SCHEMATIC DIAGRAMS .................................... 93–101
REPLACEMENT PARTS LIST .......................... 103–129
REMOTE CONTROL.......................................... 130–133
ADVANCED SETUP / 本機の設定を変更する .... 134–136
SCENE CONTROL ..................................................... 137
AV RECEIVER/AV AMPLIFIER
RX-V661/HTR-6060/DSP-AX761
P.O.Box 1, Hamamatsu, Japan
RX-V661/HTR-6060/
DSP-AX761
2007 All rights reserved.
This manual is copyrighted by YAMAHA and may not be copied or
redistributed either in print or electronically without permission.
'07.03

Yamaha DSP-AX761 Specifications

General

Brand	Yamaha
Model	DSP-AX761
Category	Receiver
Language	English

Summary

IMPORTANT NOTICE

TO SERVICE PERSONNEL

Critical Components Information

Information on components requiring exact replacement specifications.

Leakage Current Measurement

Procedure to verify insulation of conductive surfaces from supply circuits.

FRONT PANELS

REAR PANELS

REMOTE CONTROL PANELS

RAV326;RAV327 Remote Controls

Details on RAV326 and RAV327 remote control layouts.

RAV364 Remote Control

Details on the RAV364 remote control layout.

SPECIFICATIONS

Audio Section

Technical specifications for the audio output and performance.

Video Section

Technical specifications for the video processing and signal handling.

FM;AM Tuner Specifications

Technical specifications for the radio tuner functions.

General Specifications

Dimensions, Weight, and Finish

Physical characteristics and available finishes of the unit.

Accessories and Scene Template

List of included items and SCENE function settings.

INTERNAL VIEW

Top and Front Views of Internal Components

Diagrams showing internal component layout.

DISASSEMBLY PROCEDURES

Top Cover and Front Panel Removal

Steps to remove the unit's top cover and front panel.

Sub Chassis Unit Removal

Steps to remove the sub chassis component.

Printed Circuit Board Removal

FUNCTION (1) and DSP PCB Removal

Steps to remove specific printed circuit boards.

Printed Circuit Board Removal (Continued)

HDMI, VIDEO, Tuner, and MAIN PCB Removal

Steps to remove various main circuit boards.

UPDATING FIRMWARE

Tools, Preparation, and Operation

Necessary items, precautions, and steps for firmware updates.

Main Unit Initialization After Firmware Update

Writing Firmware to DSP

SELF DIAGNOSIS FUNCTION (DIAG)

Starting DIAG Procedures

Methods to activate the self-diagnosis function.

Canceling DIAG and Display Information

Steps to exit diagnostics and view status.

DIAG Menu Navigation and Functions

How to operate the diagnostic menu and its active functions.

Detailed DIAG Menu Tests

BYPASS Tests

Diagnostic tests for analog and DSP bypass signals.

RAM THROUGH Test

Diagnostic tests for RAM throughput.

HDMI AUDIO and SPEAKER SET Tests

Specific diagnostic tests for HDMI audio and speaker configurations.

XCH-INPUT Test

Diagnostic test for multi-channel input selection.

Further DIAG Menu Tests

MIC CHECK and FL;OSD CHECK Tests

Diagnostic tests for microphone and display functionalities.

MANUAL TEST and FACTORY PRESET Tests

Diagnostic tests for manual functions and preset handling.

A;D DATA CHECK

Diagnostic test for A/D conversion values.

VIDEO CHECK

Diagnostic test for the video circuit.

Connectivity and System Status Tests

XM STATUS and Peripheral Connection Tests

Diagnostic tests for XM status, DOCK, USB, and DAB.

HDMI Information and Select Tests

Tests related to HDMI module information and signal selection.

IF STATUS and DSP BUS CHECK Tests

Tests for input function status and DSP bus integrity.

Protection and System Setting Tests

PROTECTION SETTING and HISTORY Tests

Diagnostic tests for protection circuit settings and history.

SOFT SWITCH and ROM Information Tests

Diagnostic tests for software switches and ROM data.

UPDATE Procedure

Procedure for updating firmware, accessed via diagnostic menu.

AMP ADJUSTMENT

Idling Current Confirmation

Procedure to check and adjust amplifier idling current.

DISPLAY DATA

PIN CONNECTION and GRID ASSIGNMENT

Diagrams for display controller pinouts and segment layout.

ANODE CONNECTION

Details anode connections for display segments.

IC DATA

IC41: LC89057 W-VF4 AD-E (DSP P.C.B.)

Details of the DSP transceiver IC.

IC44: D70 YE101 BRFP266 (DSP P.C.B.)

Details of the DSP processor IC.

IC81: M30878 JBGP (DSP P.C.B.)

Details of the main microprocessor IC.

AD Port Key Detection

IC202: R2 A15215 FP (FUNCTION P.C.B.)

IC401: M66003-0131 FP (OPERATION P.C.B.)

BLOCK DIAGRAMS

Audio Section Block Diagrams

Block diagrams illustrating audio signal flow.

VIDEO SECTION BLOCK DIAGRAM

Block diagram illustrating video signal flow.

HDMI SECTION BLOCK DIAGRAM

Block diagram illustrating HDMI signal flow.

CONTROL;POWER SUPPLY SECTION BLOCK DIAGRAM

Block diagram for control and power supply circuits.

PRINTED CIRCUIT BOARDS

Semiconductor Location Diagrams

Layouts showing semiconductor placement on PCBs.

PIN CONNECTION DIAGRAMS

ICs Pin Connections

Pinout diagrams for integrated circuits.

Component Information

Diodes and Transistors

Information and diagrams for diodes and transistors.

SCHEMATIC DIAGRAMS

OPERATION

MAIN Unit Circuitry

VIDEO P.C.B. Layouts

HDMI P.C.B. Layouts

REPLACEMENT PARTS LIST

Electrical Component Parts List

List of electrical components for replacement.

P.C.B. DSP Parts List

P.C.B. FUNCTION Parts List

P.C.B. FUNCTION and OPERATION Parts List

P.C.B. MAIN Parts List

P.C.B. VIDEO Parts List

P.C.B. VIDEO and HDMI Parts List

OVERALL ASSEMBLY View

ACCESSORIES AND SERVICE TOOLS

AMP UNIT Details

REMOTE CONTROL Schematics and Panels

RAV326;RAV327 Remote Details

Schematic and panel layout for RAV326/RAV327 remotes.

Remote Control Key Layout and Codes

Key Layout

Visual representation of remote control key arrangement.

Key Codes

Table mapping remote control keys to their codes.

REMOTE CONTROL RAV364 Schematic

Remote Control Operation Procedures

RAV326;RAV327 Operation

Operation procedures for RAV326/RAV327 remotes.

RAV364 Operation

Operation procedures for RAV364 remote control.

ADVANCED SETUP

SCENE CONTROL