编号10：雅马哈YAMAHA-xv765_htr6270_axv765功放维修图纸手册

AV RECEIVER/AV AMPLIFIERRX-V765/HTR-6270/AX-V765SERVICE MANUALIMPORTANT 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 spec ified.For these reasons,we adviseall YAMAHA product owners that any service required should be performed by an authorized YAMAHA Retailer orthe appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization,certification orrecogition of any applicable tecicaeapabilities,or establisha principle-agent relationship of any fomm.The data provided is believed to bea and applicable tohe unit(s)indicaed on the cover.The research,engineeringand servicedepartments of YAMAHA are continually striving to improve YAMAHA products.Modifications are,therefore,inevitable andspecifications are subject to change without notice or obligation to retrofit Shouk any discrepancy appear to exist,please contact thedistributor's Service 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:Tum the unit OFF during disassembly and part replacement.Recheck all work before you apply power to the unit■CONTENTSTO SERVICE PERSONNELCONFIRMATION OF IDLING CURRENT OF AMP UNIT/FRONT PANELS...了ブ1二ッ卜刃了亻ド)5電流0確認….65REAR PANELS......…5-8DISPLAY DATA ...........66-67REMOTE CONTROL PANEL9IC DATA..m.m…68-86SPECIFICATIONS/参考仕樣10-16PIN CONNECTION DIAGRAMS....…87-89INTERNAL VIEW ....m17BLOCK DIAGRAMS......90-93SERVICE PRECAUTIONS/圹一又時)注意事項..17PRINTED CIRCUIT BOARDS...........94-111DISASSEMBLY PROCEDURES/分解手順18-20SCHEMATIC DIAGRAMS....113-124UPDATING FIRMWARE/REPLACEMENT PARTS LIST..125-14777一4ヴ工了0書老达#nnnm.n21-31REMOTE CONTROL.148-150SELF-DIAGNOSTIC FUNCTIONADVANCED SETUP.............151-152ダ亻了5（自己診断機能）.32-64本機)基本設定/初期化老行与.153-154一上マ二工儿、工一夕移定再生鞭查使用儿车才。This Service Manual uses recycled paper.YAMAHA10114可Copyright 2009 YAMAHA CORPORATION All rights reservedTis manual is copyighted by YAMAHA and may not be copied oYAMAHA CORPORATIONsedistributed either in print or electronically without pemission.P.O.Box 1,Hamamatsu,Japananimate'09.05