Yamaha yst sw1500

Page 1

SUBWOOFER SYSTEM

YST-SW1 500

SERVICE MANUAL

Music/Mavis ewasr

@VIIMAHA

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 servrce 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 principleragem relationship of any form.

The data provided is believed to be accurate and applicable to the unII(s) indicated on the cover. The research, engineering. and service departments of YAMAHA are
continually sirivrng 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 distributors 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 wrres connect to this buss).
IMPORTANT: Tum the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

I CONTENTS

TO SERVICE PERSONNEL 2
FRONT PANEL 2
REAR PANELS 3~4
SPECIFICATIONS.......................................................... 5
DISASSEMBLY PROCEDURES / Mfifllfi 6~7

SERVICE POSITION ...................................................... 7
REPAIR PROCEDURES/{EE¥III§ ........................ 8~11
ADJUSTMENT / Egg ............................................. 12~14

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Thts Service Manual uses vecycled papev

100828

BLOCK DIAGRAM 16
PRINTED CIRCUIT BOARD 17~21
PIN CONNECTION DIAGRAM 22
SCHEMATIC DIAGRAM 23
PARTS LIST 25~37
REMOTE CONTROL...... 38
Parts List for Carbon Res siors 39

YAMAHA

YAMAHA CORPORATION

P.O.Box 1. Hamamatsu. Japan

009 LMSlSA

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YST-SW1 500

YST-SW1500

I TO SERVICE PERSONNEL Ac LEAKAGE
WALL EQUIPMENT TESTER OR
.Critical Components Information OUTLET UNDER TEST EQUIVALENT
Components having special characteristics are marked l?
and must be replaced with parts having specifications equal
to those originally installed. ® :ID-
2. Leakage Current Measurement (For 120V Models Only) J_-

When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.

INSULATING
TABLE
0 Meter impedance should be equivalent to 1500 ohm shunted ° Leakage current must 0 exceed 0.5mA.
by 0.15pF. 0 Be sure to test for leakage with the AC plug in both polarities.

CAUTION"
:éa: F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 12A.
4"" 250v FUSE "

CAUTION
F1: REPLACE WITH SAME TYPE 12A. 250V FUSE.

ATTENTION
F1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 12A. 250V.

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and
possibly other entities) to cause cancer and/or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-
SON WHATSOEVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/flux vapor!

If you come in Contact with solder or components located inside the enclosure of this product, wash your hands before
handling food.

I FRONT PANEL

@ W. mm mm

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