Yamaha rx v471

Page 1

AV RECEIVER

RX-V471/HTR-4064

SERVICE MANUAL

/ IMPORTANT NOTICE \

This manual has been provided for the use ofauthorizedYAMAHA Retailers andtheir service personnel

It has been assumedthat basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already known

and understood by the users, andhave 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 ofthe productto perform as specified 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

IlVl'PORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification 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 Modifications are, therefore, inevitable and

specifications are subject to change without notice or obligation to retrofit 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 andpart replacement Recheck all work before you apply power to the unit J

I CONTENTS

TO SERVICE PERSONNEL ...... DISPLAY DATA ......

FRONT PANELS ..................... IC DATA .....................

REAR PANELS ...... BLOCK DIAGRAM

REMOTE CONTROL PANELS ........ PRINTED CIRCUIT BOARDS ......... ..
SPECIFICATIONS l§%fij§ ................................... 9-14 PIN CONNECTION DIAGRAMS ................................... 90
INTERNAL VIEW .......................................................... 15 SCHEMATIC DIAGRAMS ..................................... 91-103
SERVICE PRECAUTIONS I If- EXfiwiifigg ..... 15 REPLACEMENT PARTS LIST ........ .105-121
DISASSEMBLY PROCEDURES lfi'fiaalllfi ........... 16-18 REMOTE CONTROL ....................... 122-124
UPDATING FIRMWARE] CONFIGURING THE SYSTEM SETTINGS .. ......... 125
77-14717037-17-73- I~ ------------------------------ 19-20 9X?L\$§EEEE¢% --------------------------------------------- 126
SELF-DIAGNOSTIC FUNCTION /

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This Service Manual uses recycled paper.

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RX-V471 / H T R-4064

I TO SERVICE PERSONNEL

1. Critical Components Information
Components having special characteristics are marked A and
must be replaced with parts having specifications equal to those
originally installed.

2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verity
that all exposed conductive surfaces are properly insulated
from supply circuits

O Meter impedance should be equivalent to 1500 ohms shunted
by 0.15 uF.

For U model
IE3 CAUTION"

AC LEAKAGE
WALL EQUIPMENT TESTER OR
OUTLET UNDER TEST EQUIVALENT

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INSULATING
TABLE

- Leakage current must not exceed 0.5mA.
. Be sure to test for leakage with the AC plug in both polarities.

*Aiv F3702: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 6A,

125V FUSE.

For C model
CAUTION

F3702: REPLACE WITH SAME TYPE 6A, 125V FUSE

ATTENTION

F3702: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 6A, 125V.

WARNING: CHEMICAL CONTENT NOTICE!

This product contains chemicals known to the State of California to cause cancer. or birth defects or other reproductive

harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON

WHATSOEVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or

expose eyes to solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before

handling food.

About lead free solder / fi§31\/§IZOLT

All of the P.C.B.s installed in this unit and solder joints are
soldered using the lead free solder.

Among some types of lead tree solder currently available,
it is recommended to use one of the following types for
the repair work.

0 Sn + Ag + Cu (tin + silver + copper)

0 Sn + Cu (tin + copper)
0 Sn + Zn + Bi (tin + zinc + bismuth)

Caution:
As the melting point temperature of the lead free solder
is about 30°C to 40°C (50°F to 70°F) higher than that of
the lead solder. be sure to use a soldering iron suitable
to each solder.

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