编号9：雅马哈YAMAHA-x-v750-receiver功放维修图纸手册

AV RECEIVER/AV AMPLIFIERRX-V750/DSP-AX750/DSP-AX750SERX-V650/HTR.5760SERVICE MANUALIMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailersand 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 there fore 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 al YAMAHA product owners thatt any service required should be perfommed by an authorized YAMAHARetailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual o any individual or fim does not constitute authorization,ificationorrecognition 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 andspecifications are subject to change without notice or obligation to retrofit.Should any discrepancy appear to exist,please contact theRX-V750DSP-AX750DSP-AX7505Edistributor's Service Division.WARNING:Static discharges can destroyonents.Discharge any static electricity your body may haveIMPORTANT:Tum the unit OFF during disassembly and part replacement.Recheck all work before you apply power to the unit■CONTENTSTO SERVICE PERSONNEL....................2AMP CHECK/了>ブ手xy夕47IMPEDANCE SELECTOR......................3DISPLAY DATA..........................48-49FRONT PANELS...·4-51 C DATA…50-60REMOTE CONTROL PANELS..................6BLOCK DIAGRAM.…61-62REAR PANELS...........................7-13PRINTED CIRCUIT BOARD ...............63-77SPECIFICATIONS参考仕横….1418PIN CONNECTION DIAGRAM ................78INTERNAL VIEW............................19SCHEMATIC DIAGRAM…79-88DISASSEMBLY PROCEDURES分解手順..20-24PARTS LIST.................89-125SELF DIAGNOSIS FUNCTION(DIAG)/REMOTE CONTROL RAV270,RAV271 ...126-127自己診断機能（分亻了夕）…2546REMOTE CONTROL RAV248,RAV249........128二一上入二了儿休工一夕認定再生纸在使用T。This Service Manual uses recycled paper.YAMAHA100885YAMAHA CORPORATIONPO.Box 1,Hamamatsu,Japan