Yamaha dsp a1092

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DSP-A1092

SERVICE MANUAL

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f 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
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, or establish aprinciple-ageut
relationship of any form.

The data provided is believed to be accurate and applicable to the unitis) 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 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: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power

\ to the unit.

I CONTENTS

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TO SERVICE PERSONNEL

REAR PANELS . ...... 1~2
SPECIFICATIONS ..... 3
FACTORY PRESET ........ 4

INTERNAL VIEW
DISASSEMBLY PROCEDURES
SELF DIAGNOSIS FUNCTION...

DISPLAY DATA
IC DATA
PIN CONNECTION DIAGRAM 33
PRINTED CIRCUIT BOARD ....34~51
BLOCK DIAGRAM

SCHEMATIC DIAGRAM .56~61
PARTS LIST ............. 62~81
REMOTE CONTROL TRANSMITTER .................. 82~84

YA

YAMAHA CORPORATION
P.O.Box1,Hamamatsu,Japan

1.7K~9221 (El éPrinted in Japan 97.7

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DSP-A1092

I TO SERVICE PERSONNEL

Critical Components Information.

Components having special characteristics are maIked A:
and must be replaced with parts having specifications equal
to those originally installed.

I REAR PANELS

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