编号14：雅马哈YAMAHA-xv1800功放维修图纸手册

AV RECEIVER/AV AMPLIFIERRX-V1800/HTR-6190/DSP-AX1800SERVICE MANUAL-AX1800RX-V1200HTR1900IMPORTANT NOTICEThis manual has been provided for the use of au thorized YAMAHA Retailers and their service personnelIt has been assumed that basic service procedures inherent to the industry,and more specifically YAMAHA Products,are alreadyknown 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 personalinjury,destruction of expensive components,and failure of the product to perform as specified.For these reasonswe advise all YAMAHA product owners that any service required should be performed by an authorizedYAMAHA Retailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual toany individual or fim does not constitute authorization,certification orecognition 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.andservice departments of YAMAHA are continually striving to improve YAMAHA products.Modifications are,therefore,inev itableand specifications are subject to change without notice or obligation to retrofit.Should any discrepancy appear to exist,pleasecontact the distributor'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:Turn the unit OFF during disassembly and part replacement.Recheck all work before you apply power to the unit.■CONTENTSTO SERVICE PERSONNEL2AMP ADJUSTMENT/了>才部調整.71FRONT PANELS.…3-4DISPLAY DATA72REAR PANELS5-8C DATA73-84REMOTE CONTROL PANELS...9BLOCK DIAGRAMS...........85-87SPECIFICATIONS/参考仕樣10-13PRINTED CIRCUIT BOARDS.......88-115INTERNAL VIEW...14PIN CONNECTION DIAGRAMS...........116-118DISASSEMBLY PROCEDURES/分解手順...14-20SCHEMATIC DIAGRAMS ......119-137UPDATING FIRMWAREREPLACEMENT PARTS LIST139-174了7一么ヴ工了刃書老达办.20-33REMOTE CONTROL.....175-178SELF-DIAGNOSTIC FUNCTION/ADVANCED SETUP/ダ亻了分（自己診断機能）.………..34-70下1>又卜七y卜了yブメ二1一卷設定寸石..179-181二)竹一上入了二1F儿体、工3マ一夕隔定)再生纸卷使用T儿'米寸。This Service Manual uses recycled paper米YAMAHA101063This manual is oopyighted by YAMAHA and may notbe copedorredistributed either in pintor electroncally without permission.YAMAHA CORPORATIONP.O.Box 1,Hamamatsu,Japan'07.08