Yamaha rx v371

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AV RECEIVER

RX-V371/HTR-3064

SERVICE MANUAL

When the following parts are replaced, the model name and the destination MUST be written to the back-up IC
(EEPROM: |C222 on DIGITAL R03.) to have proper operation. (See No. 22 SOFT SWITCH menu of the self-
diagnostic function.)

- DIGITAL P.C.B.

- EEPROM: IC222 on DIGITAL P.C.B.

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 inllerelll to the industry. and more specifically YAMAHA Products. are already known

and understood by the users. and have therefore not been resrated,

WARN]

Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury.
destruction of expensive components. and failure of Ihe product to perform as specified. For these reaso ,, we advise
all YAMAHA product owners that any service reqmred should be performed by an authorized YAMAHA Retailer or
ilie appointed service representative

IMPORTANT: The presentation or sale of this triaiiual to any individual or l-ii-nt does not constitute authorization. ceriificarion or

recognition of airy applicable technical capabilities. or establish a pl'lnciplesc'lgem relationship of any form
The data provided is believed to be accurate and applicable to the itnitts) 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 subyect to change without notice or obligation to retrofit, Should any discrepancy appear to exist. please contact the

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distributor's Service Divlsmn,

WARN

: static discharges can destroy expensive components Discharge any static electricity your body may have
accumulated by grounding yourselfto the ground buss in the unit (heavy gauge blaclt WIKES connect to this buss).

IMPORTANT: Titrn the unit OFF during disassembly and part replacement, Reclleck all work before you apply power to the unit.

I CONTENTS

TO SERVICE PERSONNEL DISPLAY DATA

FRONT PANELS
REAR PANELS 5-9
REMOTE CONTROL PANELS
SPECIFICATIONS
INTERNAL VIEW
SERVICE PRECAUTIONS .
DISASSEMBLY PROCEDURES 17-19
UPDATING FIRMWARE 20-22
SELF-DIAGNOSTIC FUNCTION 23-46

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This Sewlce Manual uses recycled paper.

Copvtight © 201 l YAMAHA CORPORATION All rights reserved.
This manual is copvnghted bv YAMAHA and may not be copied or
redistributed ettber in print or electronically Without permisswn

IC DATA
BLOCK DIAGRAM 61
PRINTED CIRCUIT BOARDS 62-75
PIN CONNECTION DIAGRAMS
SCHEMATIC DIAGRAMS .
REPLACEMENT PARTS LIST .
REMOTE CONTROL 96-100
ADVANCED SETUP 101-102

fiYAMAHA

YAMAHA CORPORATION

P.O.Bo , Hamamatsu, apan
1 1.02

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RX-V371/HTR-3064

I TO SERVICE PERSONNEL AC LEAKAGE
1. Critical Components Intormation WALL EQUIPMENT TESTER OR
Components having special characteristics are marked A and OUTLET UNDER TEST EQUIVALENT
must be replaced with parts having specifications equal to those
originally installed. ® D-
2. Leakage Current Measurement (For 120V Models Only) J_-
When service has been completed, it is imperative to verify INSULATING _
that all exposed conductive surfaces are properly insulated TABLE
from supply circuits.
- Meter impedance should be equivalent to 1500 ohms shunted 0 Leakage current must not exceed 0.5mA.
by 0-15 IJF- 0 Be sure to test for leakage with the AC plug in both polarities.
For U model
133 CAUTION
F1501: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 6A,
125V FUSE."
For C model
CAUTION
F1501: REPLACE WITH SAME TYPE 6A, 125V FUSE.
ATTENTION

F1501: 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!

It 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

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 free 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.