Service Manuals, User Guides, Schematic Diagrams or docs for : Yamaha YST YST-MS201 YST-MS201

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                                                                                                                                                       YST-MS201




                    POWERED MULTIMEDIA SPEAKERS

                    YST-MS201                                                            SERVICE MANUAL


           L                                                                                                                                              R




                                                                                                                                                                        YST-MS201
           FROM                                                                                                                                           FROM
        SUBWOOFER                                                                                                                                      SUBWOOFER




                              POWERED MULTIMEDIA SPEAKERS
                                      YST-MS201                                                                            VOLUME




                                                                 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 a principle-agent 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 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.



s CONTENTS
TO SERVICE PERSONNEL ..........................................              1          IC BLOCK DIAGRAM .................................................... 5
SPECIFICATIONS ..........................................................    1          SCHEMATIC DIAGRAM ................................................ 6
REAR PANELS ..............................................................   2          PARTS LIST ............................................................. 7~11
DISASSEMBLY PROCEDURES ...................................                   3
PRINTED CIRCUIT BOARD ..........................................             4




100725
                                                                                                                                        P.O.Box 1, Hamamatsu, Japan
    YST-MS201




    s TO SERVICE PERSONNEL
    1. Critical Components Information
       Components having special characteristics are marked s
       and must be replaced with parts having specifications equal
       to those originally installed.                                                                                   AC LEAKAGE
                                                                             WALL              EQUIPMENT                TESTER OR
    2. Leakage Current Measurement (For 120V Models Only)                   OUTLET             UNDER TEST               EQUIVALENT
       When service has been completed, it is imperative to verify
       that all exposed conductive surfaces are properly insulated
       from supply circuits.
    q   Meter impedance should be equivalent to 1500 ohm shunted
        by 0.15

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