Yamaha NS-BP300 Service Manual

Also see for NS-BP300: Owner's manual Owner's manual Owner's manual Owner's manual Owner's manual

R-840/NS-BP300Copyright © 2009 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 1 5 3SERVICE 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 specified. 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 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 andspecifications are subject to change without notice or obligation to retrofit. Should 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: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.■ CONTENTSTO SERVICE PERSONNEL ............................................2SYSTEM COMPOSITION ................................................3FRONT PANELS .........................................................4–6REAR PANELS ......................................................... 7–11REMOTE CONTROL PANELS ..................................... 12SPECIFICATIONS ................................................... 13–15INTERNAL VIEW .......................................................... 16DISASSEMBLY PROCEDURES ............................. 17–19UPDATING FIRMWARE ..........................................20–24SELF-DIAGNOSTIC FUNCTION ............................25–37CONFIRMATION OF IDLING CURRENT OF AMP UNIT ....38–39DISPLAY DATA .............................................................40IC DATA ...................................................................41–44PIN CONNECTION DIAGRAMS .............................45–47BLOCK DIAGRAM ........................................................49PRINTED CIRCUIT BOARDS .................................50–62SCHEMATIC DIAGRAMS .......................................63–70REPLACEMENT PARTS LIST ................................71–79REMOTE CONTROL .....................................................80SYSTEM CONNECTOR ..........................................81–82'09.11P.O.Box 1, Hamamatsu, JapanRECEIVER/SPEAKER PACKAGER-840/NS-BP300• When accepting a repair order from the user, it is recommended to receive the R-840 and BD-940/DVD-840/CD-640 as a set for the repair work.• The MCR-940 consists of the R-840, BD-940 and NS-BP300.The MCR-840 consists of the R-840, DVD-840 and NS-BP300.The MCR-640 consists of the R-840, CD-640 and NS-BP300.This service manual is for the R-840/NS-BP300. For service manual of the BD-940/DVD-840/CD-640, please referto the following publication numbers:BD-940: 10115 4 / DVD-840: 10115 5 / CD-640: 10115 6MICRO COMPONENT SYSTEM MCR-940/MCR-840/MCR-640