Yamaha DSP-AX430 - User Manual

SERVICE MANUAL
100783
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.
P.O.Box 1, Hamamatsu, Japan
■ CONTENTS
TO SERVICE PERSONNEL .......................................... 2
IMPEDANCE SELECTOR ............................................. 2
FRONT PANELS ........................................................ 3~5
REAR PANELS ........................................................ 5~12
REMOTE CONTROL.................................................... 13
SPECIFICATIONS.................................................. 14~15
INTERNAL VIEW ................................................... 16~17
DISASSEMBLY PROCEDURES/分解手順 ......... 18~21
SELF DIAGNOSIS FUNCTION (DIAG)/
自己診断機能（ダイアグ）..................................... 22~41
AMP ADJUSTMENT/アンプ部調整 ........................... 42
DISPLAY DATA ..................................................... 43~44
IC DATA ................................................................. 45~50
BLOCK DIAGRAM ................................................. 51~52
PRINTED CIRCUIT BOARD .................................. 53~64
PIN CONNECTION DIAGRAM .............................. 65~66
SCHEMATIC DIAGRAM ........................................ 67~74
PARTS LIST ......................................................... 75~100
REMOTE CONTROL.......................................... 100~102
AV RECEIVER/AV AMPLIFIER
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430

Yamaha DSP-AX430 Specifications

General

Type	AV Receiver
Channels	6.1
Total Harmonic Distortion	0.06%
Input Sensitivity	200 mV
Signal-to-Noise Ratio	100 dB
Surround Sound Formats	Dolby Digital, DTS, Dolby Pro Logic II
Remote Control	Yes
Weight	8.5 kg
HDMI	No
Frequency Response	20Hz to 20kHz
Inputs	2 x Optical, 2 x Coaxial
Outputs	headphone
Tuner	AM/FM
Dimensions (W x H x D)	435 x 151 x 363 mm

Summary

Service Information and Basic Settings

To Service Personnel

Information for authorized service personnel regarding critical components and leakage current measurement.

Impedance Selector

Details about the impedance selector switch and a warning about changing it while the unit is on.

Unit Layouts

Front Panels

Illustrations and identification of front panel controls for various models.

Rear Panels

Rear panel layouts and connector identifications for different unit models.

Remote Control

Layout and identification of buttons on the remote control for various Yamaha models.

Specifications and Details

Specifications

Detailed technical specifications for audio, video, FM, AM, and general unit parameters.

Internal View and Parameter Ranges

Diagrams of internal layout and tables showing variable parameter ranges.

Maintenance and Diagnostics

Disassembly Procedures

Step-by-step instructions for disassembling various parts of the unit.

Self Diagnosis Function (DIAG)

Diagnostic menu items and procedures for self-testing unit functions.

Amp Adjustment

Procedure for adjusting idling current of the Main (1) P.C.B.

Technical Diagrams and Data

Display Data and IC Information

Details on display data, IC pin connections, and data for specific integrated circuits.

Block Diagrams

Diagrams illustrating the functional blocks and signal flow of the unit.

Printed Circuit Boards

Foil side views of various P.C.B.s showing component and connection layouts.

Schematic Diagrams

Detailed schematic diagrams for functional, operational, DSP, video, and main sections.

Parts and Accessories

Electrical Parts List

List of electrical components with part numbers, descriptions, and remarks.

P.C.B. Component Lists

Detailed lists of components mounted on various P.C.B.s.

Mechanical Parts and Exploded View

List of mechanical parts and an exploded view showing unit assembly.

Remote Control Schematic and Keychart

Schematic diagram and keychart for the remote control unit.