Yamaha dsp a595

Page 1

AV AMPLIFIER

DS P-A595

SERVICE MANUAL

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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 specifically 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 specitied. 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 of firm does not constitute
authorization, certification or recognition of any applicable technical capabilities.
or establish a principlemgem 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 distributors Service Division.

WARNING: Static discharges can destroy expensive coinponents. Discharge any static electricity

your body may have accumulated by grounding yourself to the ground buss in the unit
(heavy gauge black wtres connect to this buss).

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IMPORTANT'T th ' OPTd ' d bl d 1 R h k 1.1 kb f
you apply power to the unit.

I CONTENTS

TO SERVICE PERSONNEL 1
REMOTE CONTROL PANELS 1
REAR PANELS 2
SPECIFICATIONS 3~4
INTERNAL VIEW 5
DISASSEMBLY PROCEDURES 5
SELF DIAGNOSIS FUNCTION 6~17
FACTORY PRESET 18

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This SeNlce Manual uses vecycIed paper

AMP ADJUSTMENT 19
IC DATA 20~29
DISPLAY DATA 30
BLOCK DIAGRAM . . 31 ~32
PRINTED CIRCUIT BOARD . . 33~46
SCHEMATIC DIAGRAM 47~52
PARTS LIST 53~66
REMOTE CONTROL TRANSMITTER 67

.YAMAHA

YADMAHA CORPORATION
Box1 Hamamatquapan

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DSP-A595

I TO SERVICE PERSONNEL

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

. AC LEAKAGE
Installed. WALL EQUIPMENT TESTER OR
2. Leakage Current Measurement (For 120V Model only). OUTLET UNDER TEST EQUIVALENT

When service has been completed, it is imperative that you verify that

all exposed conductive surfaces are properly insulated from supply GD D- -
circuits. J_-

' Meter impedance should be equivalent to 1500 ohm shunted by 0t15uF.
' Leakage current must not exceed 0.5mA.
- Be sure to test for leakage with the AC plug in both polarities INS-IIflET-éNG

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.

I REMOTE CONTROL PANELS

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