Yamaha RX-V673 Service Manual

P.O.Box 1, Hamamatsu, Japan

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SERVICE MANUAL

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 speci

fi

 cally 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 speci

fi

 ed.  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 

fi

 rm does not constitute authorization, certi

fi

 cation 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 

speci

fi

 cations are subject to change without notice or obligation to retro

fi

 t.  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 PANEL  ..........................................9

SPECIFICATIONS  ................................................... 10–15

INTERNAL VIEW  .................................................... 16–17

SERVICE PRECAUTIONS  ............................................ 17

DISASSEMBLY PROCEDURES  ............................. 18–23

UPDATING FIRMWARE  ..........................................24–25

SELF-DIAGNOSTIC FUNCTION  ............................26–64

POWER AMPLIFIER ADJUSTMENT  ............................65

DISPLAY DATA  .......................................................66–69

IC DATA  ...................................................................70–89

PIN CONNECTION DIAGRAMS  .............................90–91

BLOCK DIAGRAMS  ................................................92–95

PRINTED CIRCUIT BOARDS  ............................... 96–128

SCHEMATIC DIAGRAMS  ................................... 129–148

REPLACEMENT PARTS LIST  ............................ 149–171

REMOTE CONTROL  ........................................... 172–174

ADVANCED SETUP  ............................................ 175–176

FIRMWARE UPDATING PROCEDURE  .............. 177–188

AV RECEIVER

RX-V673/HTR-6065/

RX-A720

Copyright © 2012 

 All rights reserved.

This manual is copyrighted by YAMAHA and may not be copied or

redistributed either in print or electronically without permission.

'12.05

RX-V673/HTR-6065/

RX-A720

Note:

When the DIGITAL P.C.B. or IC82 on DIGITAL P.C.B. is replaced, this unit will display “Internal Error” 

and will not operate at all without additional setting.

In such a case, report the serial number of this unit to the following e-mail address.

Yamaha Corporation will reply providing the setting procedure to make this unit operate properly.

E-mail: ycav-ysiss@gmx.yamaha.com