File name Yamaha-EMX860 pwrmix.pdfSERVICE MANUAL
CONTENTS
SPECIFICATIONS ... 3/4
PANEL LAYOUT ... 5
CIRCUIT BOARD LAYOUT ... 7
BLOCK DIAGRAM ... 8
DISASSEMBLY PROCEDURE ... 9
LSI PIN DESCRIPTION ... 11
IC BLOCK DIAGRAM ... 11
CIRCUIT BOARDS ... 12
INSPECTION ... 15
MIDI INPLEMENTATION CHART ... 25
PARTS LIST
PA 011457 HAMAMATSU, JAPAN
19990220-99800 1.96K-296 Printed in Japan '99.03
EMX860ST
IMPOR TANT 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 under-
stood 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 per-
sonal injury, destruction of expensive components and failure of the product to perform as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-
cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.
The data provided is belived 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 changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to
exist, please contact the distributor's Service Division.
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