Yamaha YST-SW215 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
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.
■ CONTENTS
TO SERVICE PERSONNEL .......................................... 2
INTERNAL VIEW ........................................................... 2
SPECIFICATIONS / 参考仕様 ........................................ 3
REAR PANELS .......................................................... 3~4
DISASSEMBLY PROCEDURES/分解手順 ............. 5~6
CONFIRMATION OF AUTO STANDBY OPERATION /
AUTOSTANDBY動作確認 ............................................ 7
BLOCK DIAGRAM ......................................................... 8
PRINTED CIRCUIT BOARD .................................... 9~10
SCHEMATIC DIAGRAM .............................................. 11
PARTS LIST ........................................................... 13~20
YST-SW215
100854
P.O.Box 1, Hamamatsu, Japan
SERVICE MANUAL
SUBWOOFER SYSTEM
YST-SW215
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Yamaha YST-SW215 Specifications

General

Power Output	100 Watts
Frequency Response	28 Hz - 200 Hz
Type	Active
Weight	24.3 lbs
Technology	Advanced YST
Driver Size	8" cone

Summary

YAMAHA YST-SW215 Service Manual Overview

Important Notice

Essential information for authorized service personnel, including safety and product integrity warnings.

To Service Personnel

Guidelines for technicians on critical components, leakage current testing, and safety precautions.

Internal View

Visual guide to the internal layout and components of the subwoofer.

Specifications / 参考仕様

Detailed technical data including output power, input sensitivity, frequency response, and power consumption.

Rear Panels

Diagrams illustrating rear panel connectivity and controls for various model variants.

Disassembly Procedures / 分解手順

Step-by-step instructions for safely disassembling the subwoofer unit.

Confirmation of Auto Standby Operation

Procedure to verify the auto standby function's performance and indicator lights.

Block Diagram

High-level functional overview of the subwoofer system's interconnected modules.

Printed Circuit Board

Foil side layouts and semiconductor locations for various main PCBs.

Schematic Diagram

Detailed electrical schematic illustrating the circuit design for troubleshooting.

Parts Lists

Comprehensive list of electrical and mechanical components, and their part numbers.