YST-SW010_030.pdf

YST-SW030/YST-SW010

SUBWOOFER SYSTEM

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

SPECIFICATIONS / ࢀߟ࢓༷ .................................... 3~4

INTERNAL VIEW ........................................................... 4

REAR PANELS .......................................................... 5~8

DISASSEMBLY PROCEDURES ෼ղखॱ ........... 9~10

BLOCK DIAGRAM ....................................................... 10

PRINTED CIRCUIT BOARD .................................. 11~12

SCHEMATIC DIAGRAM ........................................ 13~14

PARTS LIST ........................................................... 15~25

100886

P.O.Box 1, Hamamatsu, Japan

YST-SW030/YST-SW010

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.

2. Leakage Current Measurement (For 120V Models Only)

When service has been completed, it is imperative to verify

that all exposed conductive surfaces are properly insulated

from supply circuits.

WALL

OUTLET

EQUIPMENT

UNDER TEST

AC LEAKAGE

TESTER OR

EQUIVALENT

INSULATING

TABLE

Leakage current must not exceed 0.5mA.

Meter impedance should be equivalent to 1500 ohm shunted

by 0.15

Be sure to test for leakage with the AC plug in both polarities.

“CAUTION”

“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2A (YST-

SW030) / 1.6A (YST-SW010), 125V FUSE.”

CAUTION

F1: REPLACE WITH SAME TYPE 2A (YST-SW030) / 1.6A (YST-SW010), 125V FUSE.

ATTENTION

F1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 2A (YST-SW030) / 1.6A (YST-SW010), 125V.

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.

About Lead Free Solder / ແԖϋϯμʹ͍ͭͯ

The foil side of MAIN P.C.B. used for this product are

soldered with lead free soldering material which is an

alloy of Sn+Ag+Cu (tin + silver + copper).

͜ͷ੡඼ʹ࢖༻͞Ε͍ͯΔ."*/1$#ͷϋϯμ໘ͷϋϯμ෇͚

ʹ͸ɺ4O"H$Vʢऎۜಔʣͷ߹ۚͰ͋ΔແԖϋϯμ͕࢖༻͞

Ε͍ͯ·͢ɻ

Among some types of lead free solder currently available,

it is recommended to use one of the following types for the

repair work.

• Sn + Ag + Cu (tin + silver + copper)

• Sn + Cu (tin + copper)

• Sn + Zn + Bi (tin + zinc + bismuth)

ແԖϋϯμʹ͸͍͔ͭ͘ͷछྨ͕͋Γ·͕͢ɺमཧ࣌ʹ͸Լهͷ

Α͏ͳແԖϋϯμͷ࢖༻Λਪ঑͠·͢ɻ

ɾ4O"H$Vʢऎۜಔʣ

ɾ4O$Vʢऎಔʣ

ɾ4O;O#JʢऎѥԖϏεϚεʣ

$BVUJPO

1. As the melting point temperature of the lead free solder is

about 30 ° C to 40 ° C (50 ° F to 70 ° F) higher than that of the lead

solder, be sure to use a soldering iron suitable to each solder.

2. If lead solder must be used, be sure to remove lead free solder

from each terminal section of the parts to be replaced and

from the area around it completely before soldering, or make

sure that the lead free solder and lead solder melt together

fully.

஫ҙɿ

ᶃ ແԖϋϯμͷ༥఺Թ౓͸௨ৗͷԖೖΓϋϯμʹൺ΂ʙˆ

ఔ౓ߴ͘ͳ͍ͬͯ·͢ͷͰɺͦΕͧΕͷϋϯμʹ߹ͬͨϋϯμ

ͯ͝Λ͝࢖༻͍ͩ͘͞ɻ

ᶄ ԖೖΓϋϯμΛ࢖Θ͟ΔΛಘͳ͍৔߹͸ɺ͋Β͔͡Ίަ׵͢Δ

෦඼୺ࢠ෦΍ͦͷपล෦ͷແԖϋϯμΛ͢΂ͯऔΓআ͔͘ɺ͋

Δ͍͸ແԖϋϯμͱԖೖΓϋϯμ͕े෼ʹ༹͚ͨঢ়ଶͱͳΔΑ

͏ʹϋϯμ෇͚͍ͯͩ͘͠͞ɻ

YST-SW030/YST-SW010

SPECIFICATIONS / ࢀߟ࢓༷

Type / ܕࣜ Advanced Yamaha Active Servo Technology

Output Power / ग़ྗ (100 Hz, 5 ohms, 10% T.H.D.)

[YST-SW030] ................................................................. 75 W

[YST-SW010] ................................................................. 50 W

Input Sensitivity / ೖྗײ౓ (50 Hz, 5 ohms)

INPUT (PJ)

[YST-SW030] ................................................... 70 mV (75 W)

[YST-SW010] ................................................... 50 mV (50 W)

Dynamic Power / μΠφϛοΫύϫʔ (5 ohms)

[YST-SW030] ............................................................... 130 W

[YST-SW010] ............................................................... 100 W

Input Impedance / ೖྗΠϯϐʔμϯε

INPUT (PJ) ............................................................. 12 k-ohms

Frequency Response / ࠶ੜप೾਺ଳҬ

[YST-SW030] ................................................ 28 Hz to 200 Hz

[YST-SW010] ................................................ 30 Hz to 200 Hz

Driver / εϐʔΧʔϢχοτ (Magnetic Shielding Type)

[YST-SW030] ................................................ 8" (20 cm) cone

[YST-SW010] ............................................. 6.5" (16 cm) cone

Input Section / ೖྗ෦

INPUT ............................................................... RCA Pin Jack

Operation Section / ૢ࡞෦

Rear Panel .... Power Switch, Volume Control, LED Indicator,

Voltage Selector (L, R, T, K models)

Power Supply / ిݯ

U, C models .................................................. AC 120 V, 60 Hz

A model ......................................................... AC 240 V, 50 Hz

B, G models .................................................. AC 230 V, 50 Hz

L, R, T models ............... AC 110-120 / 220-240 V, 50 / 60 Hz

K model ............................................... AC 110 / 220 V, 60 Hz

J model ................................................. AC 100 V, 50 / 60 Hz

Power Consumption / ফඅిྗ

[YST-SW030]

U, C, A, B, G, L, R, T, K models .................................... 70 W

J model ........................................................................... 40 W

[YST-SW010]

U, C, A, B, G, L, R, T, K models .................................... 45 W

J model ........................................................................... 30 W

Dimensions / ֎ܗੇ๏ (W x H x D)

[YST-SW030] ......................................... 290 x 361 x 311 mm

(11-7/16" x 14-3/16" x 12-1/4")

[YST-SW010] ......................................... 280 x 325 x 293 mm

(11-1/16" x 12-13/16" x 11-9/16")

Weight / ࣭ྔ

[YST-SW030] ....................................... 10.0 kg (22 lbs. 1 oz.)

[YST-SW010] ....................................... 8.5 kg (18 lbs. 12 oz.)

Finish

Cherry Color ............................. A, B, G, L, R, T, K, J models

Black Color ........................... U, C, A, B, G, L, R, T, J models

Silver Color ...................... U, C, A, B, G, L, R, T, K, J models

Accessories / ෇ଐ඼

Subwoofer Cable (5 m) x 1, Non-skid Pad x 4

* Specifications are subject to change without notice due to

product improvements.

˞ ࢀߟ࢓༷͓Αͼ֎؍͸༧ࠂͳ͘มߋ͞ΕΔ͜ͱ͕͋Γ·͢ɻ

U .......... U.S.A. model

C ...... Canadian model

A .......... Australian model

B ...... British model

G .......... European model

L ....... Singapore model

R .......... General model

T ....... Chinese model

K .......... Korean model

J ....... Japanese model

• DIMENSIONS / ੇ๏ਤ

[YST-SW030]

[YST-SW010]

311 (12-1/4")

(13/16")

290 (11-7/16")

293 (11-9/16")

(1/2")

280 (11-1/16")

280(11-1/16")

Unit : mm (inch)

୯ҐNNʢΠϯνʣ

Unit : mm (inch)

୯ҐNNʢΠϯνʣ

YST-SW030/YST-SW010

Advanced YST

Advanced Yamaha Active Servo

Technology is a unique system to

let the speaker unit have a per-

fectly linear motion by the speaker

and amplifier combination.

QD-Bass Technology

QD-Bass (Quatre Dispersion

Bass) technology is a Yamaha

unique technology to radiate the

sound efficiently in four horizontal

direction.

ΞυόϯευϠϚϋΞΫςΟϒαʔϘς

Ϋϊϩδʔ

ΞυόϯευϠϚϋΞΫςΟϒαʔϘς

Ϋϊϩδʔ͸ɺεϐΧʔͱΞϯϓͷ૊Έ

߹ΘͤʹΑΓৼಈ൘Λޮ཰Α͘εϜʔζ

ʹಈ͔͠࠷େԻѹ࣌ͷϦχΞϦςΟΛେ

෯ʹվળͨ͠ϢχʔΫͳγεςϜͰ͢ɻ

2%ϕʔεςΫϊϩδʔ

2%ʢΩϡʔσΟʔʣϕʔεςΫϊϩ

δʔ͸ɺ௿ԻΤωϧΪʔΛਫฏํ޲

ʹޮ཰Α͘์ࣹ͢ΔϠϚϋಠࣗͷςΫ

ϊϩδʔͰ͢ɻ

INTERNAL VIEW

YST-SW030

1 MAIN (3) P.C.B.

2 MAIN (1) P.C.B.

3 MAIN (6) P.C.B.

4 Power Transformer

5 MAIN (7) P.C.B. (U, C, A, B, G, J models)

MAIN (10) P.C.B. (L, R, T, K models)

6 MAIN (9) P.C.B. (L, R, T, K models only)

7 MAIN (2) P.C.B.

8 MAIN (4) P.C.B.

7 6

Rear Panel

YST-SW010

1 2

1 MAIN (3) P.C.B.

2 MAIN (1) P.C.B.

3 MAIN (6) P.C.B.

4 MAIN (7) P.C.B. (U, C, A, B, G, J models)

MAIN (10) P.C.B. (L, R, T, K models)

5 Power Transformer

6 MAIN (9) P.C.B. (L, R, T, K models only)

7 MAIN (2) P.C.B.

8 MAIN (4) P.C.B.

7 6

Rear Panel

YST-SW030/YST-SW010

REAR PANELS

YST-SW030 (U, C models)

YST-SW030 (A model)

YST-SW030 (B, G models)

YST-SW030 (L model)

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