yamahacdx-470_570_service维修电器原理图

V09221COMPACT DISC PLAYERCDX470/570SERVICE MANUALC0X-470/670IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.It has been assumed that basic service procedures inherant to the industry.and more specifically YAMAHAProducts,are aiready known and understood by the users,and have therefore not been restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this produetmay result in personal injury.destruction of expensive components and failue of theproduct to perform as specified.For these reasons,we advise all YAMAHA product ownersthat all service required should be performed by an authorized YAMAHA Retaier or theappointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or fim does not constituteauthorization.certification or recognition of any applicable technical cpabiities.orestablish a principle-agent relationship of any form.The data provided is believed to be cre and applicable to the ni(s)indicated on the cover The reserch,engineering.and service departments of YAMAHA are continually striving to improve YAMAHA oducts.Modifications are,therefore,inevitable and specifications are subject to change without notice or obligation toretrofit.Should any discrepancy appear toexistplease contact the distributors Service Division.WARNING:Static discharges can destroy expensive components.Discharge any static electriity yourbody may have accumulated by grounding yourself to the ground buss in the unit (heavygauge black wires connect to this buss).IMPORTANT:Tum the unit OFF during disassembly and parts replacement.Recheck all work bfore youapply power to the unit.■CONTENTSTO SERVICE PERSONNEL1-2CDX-470 PRINTED CIRCUIT BOARD.........18-21CDX-470 PANELS SPECIFICATIONS ............3~4CDX-570 PRINTED CIRCUIT BOARD..........-.22~25CDX-570 PANELS SPECIFICATIONS.5WAVEFORM OF TEST POINT................26INTERNAL VIEW.1 C DATA-.27-30DISASSEMBLY PROCEDURES.......6-7DISPLAY DATA.31BLOCK DIAGRAM..89SCHEMATIC DIAGRAM.......-.32-33ADJUSTMENTS…10-14PARTS LIST..2.34-48TEST MODE ....15CDX-470 REMOTE CONTROL TRANSMITTER.-.49~50ERROR MESSAGE15CDX-570 REMOTE CONTROL TRANSMITTER.-.......51OPERATION CONFIRMATIONTROUBLESHOOTING ..................16~17YAMAHA100444YAMAHA CORPORRATIONP.O.Box1.Hamamitssu Japan3.IK-693 Printed in ka pan '93.2