| Yamaha RECEIVER/SPEAKER PACKAGE R-840 Service Manual • 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 refer to the following publication numbers:
 
 CONTENTS:
 TO SERVICE PERSONNEL
 SYSTEM COMPOSITION
 FRONT PANELS
 REAR PANELS
 REMOTE CONTROL PANELS
 SPECIFICATIONS
 INTERNAL VIEW
 DISASSEMBLY PROCEDURES
 UPDATING FIRMWARE
 SELF-DIAGNOSTIC FUNCTION
 CONFIRMATION OF IDLING CURRENT OF AMP UNIT
 DISPLAY DATA
 IC DATA
 PIN CONNECTION DIAGRAMS
 BLOCK DIAGRAM
 PRINTED CIRCUIT BOARDS
 SCHEMATIC DIAGRAMS
 REPLACEMENT PARTS LIST
 REMOTE CONTROL
 SYSTEM CONNECTOR
 
 Note: The contents are subject to change without notice.
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