Yamaha ax 470

Page 1

STEREO INTEGRATED AMPLIFIER

I FRONT PANEL

/

WARNING

IMPORTANT :

retrofit, Should my
WARNING

IMPORTANT :

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I CONTENTS

TO SERVICE PERSONNEL
REARPANEL
SPECIFICATIONS
DIMENSIONS

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'l'his 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 Imuwn and understood by the users, and havc therefore not be restated.

Tne data providcd is behaved in be accuratp and applicable to the unit.(s) indicatbd on the cover. The march.
engineering. and service dopamrwnt of YAMAHA are continually striving to irnpmva YAMAHA products.
Modifications are. therefore. inevitable and specifications are subject to change without notice or obligation to

: Stalin dischargts can dwmy expensive components. Discharge any static electricity your body

IMPORTANT NOTICE \

Failure to follow appropriate service and salary procedmes whim servicing this product may
result in persunal injury, destruction of expensive components and failure of the product to
perform asspecified. For these reasons, we advise all YAMAHA product mvners that all service
required should be performed by an authorized YAMAHA Retaila or the appointed service
rcpmentativer

The presentatian or sale of this manual to any individual of firm does not constitute
authm-ization, certification or recognition of any applicable technical capabilities, crestablish a
principle agcnt relationship of any farm.

discrepmcy appear to exist. please contact the distributors Sarvice Division.

may have accumulated by wounding yourselfto the ground buss in the unit (heavy gauge black
wires connect to this buss.) '

Tum the unit OFF during disasscmbly and parts replacement. Rmheck all work before you
apply power to the unit

ADJUSTMENTS .
BLOCK DIAGRAM .
PRINTED CIRCUIT BOARD .

come:

.12

DISASSEMBLY PROCEDURE

1 00449

1
1
3
..3 SCHEMATIC DIAGRAM
.
4

REMOTE CONTROL TRANSMITTER 24

YAMAHA

YAMAHA CORPORATDN

HAMAMATSU. JAPAN
3.13K-912 a 6) Printed in Japan 933

DAV-XV

Page 2

AX-470

I TO SERVICE PERSONNEL

1.0ritical Component Information

Components having special characteristics are marked 1/1 with EQUIPMENT AC LEAKAGE TESTER
and must be replaced with pans having specifications equal to UNDER TEST OR EQUIVALENT
those originally installed.
2. Leakage Current Measurement (For 120 V Model only). ® 9--~

When a service has been completed, it is imperative that you r
vrerify thatlatl exposed conductive surfaces are properly insulated WALL ___

om su circuit. C:

pp y OUTLET INSULATING TABLE

- Meter Impedance should be equivalent to 1500 Q shunted by
0.15 uF.
- Leakage current must not exceed 0.5 mA.

- Be sure to test for leakage with the AC plug in both polarities.

WARNING : CHEMICAL CONTENT NOTICE

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-
SON WHAT SO EVER!

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 solderorcomponents located inside the enclosure orthis product, wash your hands before handling
food.

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