WARNING : Static discharges can destroy expensive components.
Should any discrepancy appear to exist, please contact the distributor’s Service Division. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit.
The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certification, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. 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. 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. 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. PDF ’12.08 PSR-S750/PSR-S950 IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. 77 SYSTEM RESET.78 PARTS LIST BLOCK DIAGRAM OVERALL CIRCUIT DIAGRAM PK 001876 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. 75 PSR-S950 DM CIRCUIT BOARD CHECK METHOD. 73 PSR-S750 DM CIRCUIT BOARD CHECK METHOD. 12 LSI PIN DESCRIPTION.22 CIRCUIT BOARDS.
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