Yamaha dsp a2

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DSP/AV AMPLIFIER

) DSP-A

SERVICE MANUAL

/ 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
)1 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
be performed by an authorized YAMAHA Retailer or the appointed service representative.

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization,
certification or recognition of any applicable technical capabilities, orestablishaprinciple-agent
relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the covert The research,
engineering. and service departments of YAMAHA are continuuliy 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: Tum the unit OFF during disassern bly and part replacement Recheck all work before you apply power

\\ to the unit.

I CONTENTS

T0 SERVICE PERSONNEL ....... ................1 IC DATA
FRONT PANEL .1 DISPLAY DATA
REAR PANELS 2 PIN CONNECTION DIAGRAM .

SPECIFICATIONS . PRINTED CIRCUIT BOARD
INTERNAL VIEW 6 BLOCK DIAGRAM 60~63
DISASSEMBLY PROCEDURES SCHEMATIC DIAGRAM ..
SELF DIAGNOSIS FUNCTION PARTS LIST .. .
AMP CHECK REMOTE CONTROL TRANSMITTER .

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This Service Manual uses recycled papen

YAMAHA

YAMAHA CORPORATION
P.O.Box1,Hamamatsu,Japan

lt58K~88t5051 [ISM Printed in Japan 98.12

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DSP-AZ

I TO SERVICE PERSONNEL

Critical Components lnlormation. AC LEAKAGE
Components having special characteristics are marked and WALL EQUIPMENT TESTER OR
must be replaced with parts having specifications equal to OUTLET UNDER TEST EQU'VALENT
those originally installed. ®
INSULATING
TABLE
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WARNING
Do not change the IMPEDANCE SELECTOR switch 5?
setting while the power to this unit Is on, otherwise
this unit may be damaged. 6 1:2.-
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