Yamaha BD-940 Service Manual

Also see for BD-940: Owner's manual Owner's manual

• When accepting a repair order from the user, it is recommended to receive BD-940 and R-840 as a set for the repairwork.• The MCR-940 consists of the R-840, BD-940 and NS-BP300.This service manual is for the BD-940. For service manual of the R-840/NS-BP300, please refer to the followingpublication number:R-840/NS-BP300: 10115 3• When BD module P.C.B. of this unit is replaced, the serial number and new MAC address MUST be reported to YamahaCorporation by e-mail.E-mail: ycav-keycontrol@gmx.yamaha.comFor more information, refer to “SERVICE PRECAUTIONS”.BD-940Copyright © 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 4SERVICE 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 ........................................2–3PREVENTION OF ELECTROSTATIC DISCHARGE ......4REGION MANAGEMENT INFORMATION .....................5SYSTEM COMPOSITION ................................................6FRONT PANEL ...............................................................7REAR PANELS ...............................................................8REMOTE CONTROL PANEL ..........................................9SPECIFICATIONS ................................................... 10–12INTERNAL VIEW .......................................................... 13SERVICE PRECAUTIONS ...................................... 14–17DISASSEMBLY PROCEDURES ............................. 18–21UPDATING FIRMWARE ..........................................22–26SELF-DIAGNOSTIC FUNCTION ............................27–31DISPLAY DATA .............................................................32IC DATA ...................................................................33–35PIN CONNECTION DIAGRAMS .............................36–37BLOCK DIAGRAM ........................................................39PRINTED CIRCUIT BOARDS .................................40–44SCHEMATIC DIAGRAMS .......................................45–48REPLACEMENT PARTS LIST ................................49–53REMOTE CONTROL .....................................................54SYSTEM CONNECTOR ..........................................55–56SETTINGS ...............................................................57–59'09.11P.O.Box 1, Hamamatsu, JapanBLU-RAY DISC PLAYERBD-940MICRO COMPONENT SYSTEM MCR-940