IMPORTANT NOTICEThis 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 knownand 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 adviseall Yamaha product owners that any service required should be performed by an authorized Yamaha Retailer or theappointed service representative.IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition 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 servicedepartments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and specificationsare subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor'sService Division.WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated 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.SERVICE MANUAL■ CONTENTSTO SERVICE PERSONNEL ............................................2FRONT PANEL ...............................................................3REAR PANELS ...............................................................3REMOTE CONTROL PANEL ..........................................6SPECIFICATIONS / .........................................6INTERNAL VIEW ............................................................9SERVICE PRECAUTIONS / .......9DISASSEMBLY PROCEDURES / ................. 10UPDATING FIRMWARE /.................................. 16SELF-DIAGNOSTIC FUNCTION /...........................................20POWER AMPLIFIER ADJUSTMENT /.......................................................46DISPLAY DATA .............................................................47IC DATA .........................................................................49BLOCK DIAGRAMS ......................................................52WIRING DIAGRAMS .....................................................54PRINTED CIRCUIT BOARDS .......................................56PIN CONNECTION DIAGRAMS ...................................72SCHEMATIC DIAGRAMS .............................................73REPLACEMENT PARTS LIST ......................................81REMOTE CONTROL ................................................... 102CONFIGURING THE SYSTEM SETTINGS ................. 103............................................. 105UPDATING FIRMWARE VIA THE NETWORK ............ 107......... 108NETWORK RECEIVERP.O.Box 1, Hamamatsu, Japan'15.12Copyright (c) Yamaha Corporation All rights reserved.This manual is copyrighted by Yamaha and may not be copied orredistributed either in print or electronically without permission.1 0 1 3 5 0R-N602 R-N602