Copyright (c) Yamaha Corporation All rights reserved.
This manual is copyrighted by Yamaha and may not be copied or
redistributed either in print or electronically without permission.
P.O.Box 1, Hamamatsu, Japan
101267
SERVICE MANUAL
IMPORTANT NOTICE
This 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 specifi cally Yamaha Products, are already known
and 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 specifi ed. For these reasons, we advise
all Yamaha product owners that any service required should be performed by an authorized Yamaha Retailer or the
appointed service representative.
IMPORTANT:
The presentation or sale of this manual to any individual or fi rm does not constitute authorization, certifi cation or
recognition 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 service
departments of Yamaha are continually striving to improve Yamaha products. Modifi cations are, therefore, inevitable and specifi cations
are subject to change without notice or obligation to retrofi t. Should any discrepancy appear to exist, please contact the distributor's
Service Division.
WARNING:
Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated 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.
■ CONTENTS
TO SERVICE PERSONNEL ............................................2
FRONT PANELS .........................................................3–4
REAR PANELS ...........................................................5–8
REMOTE CONTROL PANEL ..........................................9
SPECIFICATIONS ................................................... 10–14
INTERNAL VIEW .................................................... 15–16
SERVICE PRECAUTIONS ............................................16
DISASSEMBLY PROCEDURES ............................. 17–24
UPDATING FIRMWARE ..........................................25–27
SELF-DIAGNOSTIC FUNCTION ............................28–70
POWER AMPLIFIER ADJUSTMENT ............................71
DISPLAY DATA .......................................................72–73
IC DATA ................................................................... 74–94
PIN CONNECTION DIAGRAMS .............................95–97
BLOCK DIAGRAMS .............................................. 98–101
WIRING DIAGRAMS ........................................... 102–103
PRINTED CIRCUIT BOARDS ............................. 104–125
SCHEMATIC DIAGRAMS ................................... 127–142
REPLACEMENT PARTS LIST ............................ 143–163
REMOTE CONTROL ........................................... 164–166
ADVANCED SETUP ............................................ 167–168
FIRMWARE UPDATING PROCEDURE .............. 169–180
AV RECEIVER
RX-V675/HTR-6066/
RX-A730/TSR-6750
'13.05
Note:
When the DIGITAL P.C.B. or IC82 on DIGITAL (1) P.C.B. is replaced, this unit will display “Internal Error” and will
not operate properly. The model name MUST be written to the backup IC (EEPROM: IC82 on DIGITAL (1) P.C.B.) to
have proper operation. (For detailed procedure, refer to related Service News or Service Bulletin. Or contact your
local Yamaha representative.)
RX-V675/HTR-6066/
RX-A730/TSR-6750
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