Yamaha dsp ax1

Page 1

AV AMPLIFIER/AV RECEIVER

DSP-AX1IRX-V1

SERVICE MANUAL

MPORTAN T 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 specifically YAMAHA Products are already
known and understood by the users. and have therefore not been restated.

WARNING: Failure to tolloty 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 specified, For these
reasons, we advise all YAMAHA product owners that any service required should he performed by an
authorized YAMAHA Retailer or the appointed service representative,

IMPORTANT: The presentation or sale of this manual to any lildlvtdua] or firm does not commute a|lKhDrIZ£IlIOIL certification
or recognition ol any applicable technical capabilities. or establish a prillclpleragem relationship ol any
form,

The data provided is believed to be accurate and applicable to the unitts> indicated on the cover. The research engineering, and

service departments ot YAMAHA are continually striving to improve YAMAHA products, Modifications are. therefore.

inevitable and specifications 're subject to change wrthoiit notice or obllgmion to retrofit, Should any discrepancy appear to exist.
please Contact the (IISIribumr's Service Dlvision.

WARNING: static discharges can destroy expenswe components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss m the unit (heayy gauge black wires connect to this
buss).

IMPORTANT: Turn the unrt OFF during d semhly and part replacement. Recheck all work before you apply power to the

\, unit. 7/

I CONTENTS

3B~53
54~83
B4~88
89

5~8 ..
'I 0 E TII DIA RA 7
90401

11~32 'ARTS LIST.... 102~135
A ' V' .. 33 l' V 0 0 o ' 136~141

:m#- 527:: 7M1 I :I V-aiaimfiififiéfiifi bTuit
This Service Manual uses recycled paper.

.YAMAHA

YAMAHA CORPORATION
POBoxl Hamamaisu.Japan

llI'XH/lXVdSO

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DSP-AX1IRX-V1

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 verily
that all exposed conductive surfaces are properly insulated
from supply circuits.

0 Meter impedance should be equivalent to 1500 ohm shunted
by 0.15m:

- Leakage current must not exceed 0.5mA.

CAUTION

CAUTION

F751 : REPLACE WITH SAME TYPE 12A, 250V FUSE.

ATTENTION

AC LEAKAGE
WALL EQUIPMENT TESTER OR
OUTLET UNDER TEST EQUIVALENT
INSULATING 7
TABLE

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

F751 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 12A, 250V FUSE."

F751 :UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 12A, 250V.

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 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.

WARNING

Do not change the IMPEDANCE SELECTOR
switch setting while the power to this unit is
an, otherwise this unit may be damaged.

IMPEDANCE SELECTOR

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355 I!
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