Yamaha NS-SW200, NS-SW300 Service manual
SUBWOOFER
NS-SW300/NS-SW200
SERVICE MANUAL
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 specifi cally Yamaha Products, are already known
and understood by the users, and have therefore not been restated.
WARNING:
IMPORTANT:
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. Modifi cations are, therefore, inevitable and specifi cations
are subject to change without notice or obligation to retrofi t. Should any discrepancy appear to exist, please contact the distributor's
Service Division.
WARNING:
IMPORTANT:
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 specifi ed. 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.
The presentation or sale of this manual to any individual or fi rm does not constitute authorization, certifi cation or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
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).
Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
■ CONTENTS
TO SERVICE PERSONNEL ............................................2
FRONT PANELS ............................................................. 3
REAR PANELS ...........................................................4–8
SPECIFICATIONS /
INTERNAL VIEW .......................................................... 11
SERVICE PRECAUTIONS /
DISASSEMBLY PROCEDURES /
参考仕様
................................... 8–10
サービス時の注意事項
分解手順
........... 13–16
.....12
IMPORTANT NOTICE
BLOCK DIAGRAMS ................................................17–18
WIRING DIAGRAMS .....................................................19
PRINTED CIRCUIT BOARDS .................................20–27
PIN CONNECTION DIAGRAMS ...................................28
SCHEMATIC DIAGRAMS ....................................... 29–30
REPLACEMENT PARTS LIST ................................ 31–45
NS-SW300/NS-SW200
101279
Copyright (c) Yamaha Corporation All rights reserved.
This manual is copyrighted by Yamaha and may not be copied or
redistributed either in print or electronically without permission.
P.O.Box 1, Hamamatsu, Japan
'13.12
NS-SW300/NS-SW200
■ TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked ⚠ 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.
• Meter impedance should be equivalent to 1500 ohms shunted
by 0.15 μF.
For U model
“CAUTION”
NS-SW300 “F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME
TYPE 6A, 125V FUSE.”
NS-SW200 “F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME
TYPE 3A, 125V FUSE.”
For C model
CAUTION
NS-SW300 F1: REPLACE WITH SAME TYPE 6A, 125V FUSE.
NS-SW200 F1: REPLACE WITH SAME TYPE 3A, 125V FUSE.
ATTENTION
NS-SW300 F1: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 6A, 125V.
NS-SW200 F1: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 3A, 125V.
WALL
OUTLET
• Leakage current must not exceed 0.5mA.
• Be sure to test for leakage with the AC plug in both polarities.
EQUIPMENT
UNDER TEST
INSULATING
TABLE
AC LEAKAGE
TESTER OR
EQUIVALENT
WARNING: CHEMICAL CONTENT NOTICE!
This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive
harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
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 /
All of the P.C.B.s installed in this unit and solder joints are
soldered using the lead free solder.
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)
NS-SW300/NS-SW200
Caution:
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.
無鉛ハンダについて
本機に搭載されているすべての基板およびハンダ付けに
よる接合部は無鉛ハンダでハンダ付けされています。
無鉛ハンダにはいくつかの種類がありますが、修理時に
は下記のような無鉛ハンダの使用を推奨します。
Sn+Ag+Cu（錫+銀+銅）
Sn+Cu（錫 + 銅）
Sn+Zn+Bi（錫 + 亜鉛 + ビスマス）
注意：
無鉛ハンダの融点温度は通常の鉛入りハンダに比べ 30 〜
40℃程度高くなっていますので、それぞれのハンダに合っ
たハンダごてをご使用ください。
2
■ FRONT PANELS
NS-SW300
Indicator
インジケーター
Front view Side view
NS-SW300/NS-SW200
Indicator
インジケーター
Front view
Bottom view
NS-SW200
Side view
NS-SW300/NS-SW200
U model
3
NS-SW300/NS-SW200
■ REAR PANELS
NS-SW300
U model
T model
R model
K model
NS-SW300/NS-SW200
4
A model L, H models
NS-SW300/NS-SW200
B, G models
S model
NS-SW300/NS-SW200
5
NS-SW300/NS-SW200
J model
NS-SW200
U model R model
NS-SW300/NS-SW200
6
T model B, G models
NS-SW300/NS-SW200
A model
L, H models
NS-SW300/NS-SW200
7
NS-SW300/NS-SW200
■ SPECIFICATIONS /
参考仕様
NS-SW300
S model
J model
NS-SW300/NS-SW200
Type /
型式
......................... Advanced Yamaha Active Servo Technology II
PWM Digital Drive High Efficient Amplifier
Output Power /出力 (100 Hz, 5 ohms, 10 % T.H.D.)
.........................................................................................250 W
Input Sensitivity /
INPUT (SP) ......................................................................... 1.5 V
INPUT (PJ) ....................................................................... 60 mV
Input Impedance /
INPUT (SP) ................................................................2.2 k-ohms
INPUT (PJ) .................................................................12 k-ohms
Frequency Response /
..........................................................................20 Hz to 160 Hz
Driver /
スピーカーユニット
SUBWOOFER ........................... 25 cm (9-7/8") cone woofer x 1
Input Section /
INPUT1 ............................................................ Speaker terminal
INPUT2, 3 .............................................................. RCA pin jack
Operation Section /
Front panel .................................................... STANDBY/ON key
Rear panel ................................................POWER ON/OFF key
Power Supply /
U model ........................................................... AC 120 V, 60 Hz
R, S models ...........................AC 110–120/220–240 V, 50/60 Hz
T model ............................................................ AC 220 V, 50 Hz
K model ............................................................ AC 220 V, 60 Hz
A model ............................................................ AC 240 V, 50 Hz
B, G models ..................................................... AC 230 V, 50 Hz
L, H models ......................................... AC 220–240 V, 50/60 Hz
J model ....................................................... AC 100 V, 50/60 Hz
Power Consumption /
U, R, T, K, A, B, G, L, S, H models ..................................... 80 W
J model ............................................................................ 100 W
Standby Power Consumption /
...............................................................................0.3 W or less
Dimensions /
...................... 350 x 366 x 420 mm (13-3/4" x 14-3/8" x 16-1/2")
Weight /
Finish /
Accessories /
質量
...................................................................... 18.0 kg (39.7 lbs.)
仕上げ
B, G models .................................................... WH (White color)
R, T, K, G, L, S, H models .............................. RW (Brown color)
R, T, K, A, B, G, L, S, H, J models .....................BL (Black color)
U, R, T, K, A, B, G, L, S, H models ......... PN (Piano black color)
System control cable (5 m) ....................................................x 1
Subwoofer cable (5 m) (J model) ..........................................x 1
入力感度
入力インピーダンス
入力部
電源
外形寸法
付属品
(50 Hz, 250 W/5 ohms, L+R)
再生周波数帯域
Magnetic shielding type /
操作部
VOLUME control
Indicator (Green, Red)
AUTO STANDBY (HIGH / LOW / OFF) switch
PHASE (NORM / REV) switch
B.A.S.S. (MOVIE / MUSIC) switch
HIGH CUT control switch
VOLTAGE SELECTOR switch (R, S models)
消費電力
待機消費電力
(W x H x D)
防磁型
8
NS-SW200
NS-SW300/NS-SW200
Type /
型式
......................... Advanced Yamaha Active Servo Technology II
PWM Digital Drive High Efficient Amplifier
Output Power /出力 (100 Hz, 5 ohms, 10 % T.H.D.)
.........................................................................................130 W
Input Sensitivity /
入力感度
(50 Hz, 130 W/5 ohms, L+R)
INPUT (SP) ......................................................................... 1.2 V
INPUT (PJ) ....................................................................... 50 mV
Input Impedance /
入力インピーダンス
INPUT (SP) ................................................................2.2 k-ohms
INPUT (PJ) .................................................................12 k-ohms
Frequency Response /
再生周波数帯域
..........................................................................28 Hz to 200 Hz
Driver /
スピーカーユニット
.................................................. 20 cm (7-7/8") cone woofer x 1
Input Section /
Magnetic shielding type /
入力部
防磁型
INPUT1 ............................................................ Speaker terminal
INPUT2, 3 .............................................................. RCA pin jack
Operation Section /
操作部
Front panel .................................................... STANDBY/ON key
VOLUME control
Indicator (Green, Red)
Rear panel ................................................POWER ON/OFF key
AUTO STANDBY (HIGH / LOW / OFF) switch
PHASE (NORM / REV) switch
HIGH CUT control switch
VOLTAGE SELECTOR switch (R, S models)
Power Supply /
電源
U model ........................................................... AC 120 V, 60 Hz
R, S models ...........................AC 110–120/220–240 V, 50/60 Hz
T model ............................................................ AC 220 V, 50 Hz
A model ............................................................ AC 240 V, 50 Hz
B, G models ..................................................... AC 230 V, 50 Hz
L, H models ......................................... AC 220–240 V, 50/60 Hz
J model ....................................................... AC 100 V, 50/60 Hz
Power Consumption /
消費電力
U, R, T, A, B, G, L, S, H models ......................................... 67 W
J model .............................................................................. 55 W
Standby Power Consumption /
待機消費電力
...............................................................................0.3 W or less
Dimensions /
外形寸法
(W x H x D)
............................ 290 x 306 x 351 mm (11-3/8" x 12" x 13-7/8")
Weight /
質量
...................................................................... 11.2 kg (24.7 lbs.)
Finish /
仕上げ
B, G, S models ................................................ WH (White color)
R, T, G, L, S, H models ................................... RW (Brown color)
R, T, A, B, G, L, S, H, J models .........................BL (Black color)
U, R, T, A, B, G, L, H models ................. PN (Piano black color)
Accessories /
付属品
System control cable (5 m) ....................................................x 1
Subwoofer cable (5 m) (J model) ..........................................x 1
* Specifications are subject to change without notice due to
product improvements.
※ 参考仕様および外観は予告なく変更されることがあります。
U .......................U.S.A. model
R ....................General model
T .................... Chinese model
K .....................Korean model
A ................Australian model
B ......................British model
G .................European model
L .................Singapore model
S ..................Brazilian model
H ..........................Thai model
J .................. Japanese model
NS-SW300/NS-SW200
9
NS-SW300/NS-SW200
• DIMENSIONS /
Front view Side view
寸法図
350 (13-3/4")
366 (14-3/8")
350 (13-3/4")
16
(5/8")
NS-SW300
44
(1-3/4")
Bottom view
250 (9-7/8")
350 (13-3/4")
420 (16-1/2")
ø 60
26
(1")
45
(1-3/4")
260 (10-1/4")
Unit: mm (inch)
単位：mm（インチ）
45
(1-3/4")
265 (10-3/8")
40
(1-5/8")
45
(1-3/4")
NS-SW200
Front view
306 (12")
290 (11-3/8")
290 (11-3/8")
16
(5/8")
(1-3/8")
NS-SW300/NS-SW200
Side view
35
Bottom view
207 (8-1/8")
290 (11-3/8")
351 (13-7/8")
ø 60
26
(1")
45
(1-3/4")
200 (7-7/8")
10
Unit: mm (inch)
単位：mm（インチ）
45
(1-3/4")
205 (8-1/8")
40
(1-5/8")
45
(1-3/4")
■ INTERNAL VIEW
NS-SW300 NS-SW200
Front view Front view
NS-SW300/NS-SW200
11
Rear view
10 9 6 587 10 9 6 587
1
MAIN (4) P.C.B.
2
MAIN (3) P.C.B.
3
MAIN (6) P.C.B.
4
MAIN (1) P.C.B.
5
MAIN (8) P.C.B.
6
POWER TRANSFORMER
7
MAIN (9) P.C.B. (U, T, K, A, B, G, L, H, J models)
2
MAIN (10) P.C.B. (R, S models)
8
MAIN (5) P.C.B.
9
MAIN (11) P.C.B. (R, S models)
10
MAIN (2) P.C.B.
344
Rear view
1
MAIN (4) P.C.B.
2
MAIN (3) P.C.B.
3
MAIN (8) P.C.B.
4
MAIN (1) P.C.B.
5
MAIN (6) P.C.B.
6
POWER TRANSFORMER
7
MAIN (7) P.C.B. (U, T, A, B, G, L, H, J models)
MAIN (9) P.C.B. (R, S models)
8
MAIN (5) P.C.B.
9
MAIN (10) P.C.B. (R, S models)
10
MAIN (2) P.C.B.
2
3
11
NS-SW300/NS-SW200
NS-SW300/NS-SW200
■ SERVICE PRECAUTIONS /
サービス時の注意事項
Safety measures
• Some internal parts in this product contain high voltages
and are dangerous.
Be sure to take safety measures during servicing, such
as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous
even after the power is turned off because an electric
charge remains and a high voltage continues to exist
there.
Before starting any repair work, connect a discharging
resistor (5 k-ohms/10 W) to the terminals of each
capacitor indicated below to discharge electricity.
The time required for discharging is about 30 seconds
per each.
C85 and C86 on MAIN (1) P.C.B.
For details, refer to “PRINTED CIRCUIT BOARDS”.
安全対策
・ この製品の内部には高電圧部分があり危険です。修理
の際は、絶縁性の手袋を使用するなどの安全対策を
行ってください。
・ 下記のコンデンサには電源を OFF にした後も電荷が残
り、高電圧が維持されており危険です。
修理作業前に放電用抵抗（5k Ω /10W）を下記の各コ
ンデンサの端子間に接続して放電してください。
放電所用時間は各々約 30 秒間です。
MAIN（1）P.C.B. の C85、C86
詳しくは “PRINTEDCIRCUITBOARDS” を参照してくだ
さい。
NS-SW300/NS-SW200
12
NS-SW300/NS-SW200
■ DISASSEMBLY PROCEDURES /
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
NS-SW300 NS-SW200
Disassembly procedures of the NS-SW300 and NSSW200 are almost the same. For that reason, we
explain disassembly procedure of the NS-SW300 as a
representative here.
1. Removal of Front Grille Assembly
a. Spread a rubber sheet and cloth for protection of this
unit against any damage and place this unit on cloth
with its bottom side facing up. (Fig. 1)
* The front grille assembly is fixed to the cabinet
assembly with dowels at 11 locations.
As a flatblade screwdriver is used for removal, use
special care not to cause damage to the cabinet
assembly.
b. First, insert a flatblade screwdriver at 3 dowel positions
and push up the front grille assembly. (Fig. 1)
c. Next, using the metalblade or the like, push the front
grille assembly upward until it comes off. (Fig. 1)
d. Remove CB1. (Fig. 1)
e. Remove the front grille assembly. (Fig. 1)
Notes:
• Removing the front grille assembly with the flatblade
screwdriver only without using the metalblade or the
like may cause damage to the front grille assembly.
• When installing the front grille assembly, apply quick-
drying bond or the like to dowels and then fit them
into dowel holes for secure installation. (The front
grille assembly will come off easily if its dowels are
fitted into dowel holes without applying quick-drying
bond or the like.)
Flatblade screwdriver
マイナスドライバー
Cabinet assembly
キャビネット Ass'y
分解手順
( 番号順に部品を取り外してください。)
AC 電源コンセントから、電源コードを抜いてください。
NS-SW300 と NS-SW200 の分解手順はほぼ同じです。そ
のため、ここでは代表として NS-SW300 の分解手順で説
明します。
1. フロントグリル Ass'y の外し方
a. 本機に傷などが付かないようにゴムシートと布を敷
き、本機を底面が上になるように置きます。（Fig.1)
※ フロントグリル Ass'y は 11 箇所のダボでキャビ
ネット Ass'y に固定されています。
取り外しの際、キャビネット Ass'y に傷が付かない
よう十分注意してください。
b. 最初にマイナスドライバーを 3 箇所のダボ位置へ差し
込み、フロントグリル Ass'y を押し上げます。（Fig.1）
c. 次にヘラ等を使い、フロントグリル Ass'y が外れるま
で徐々に上面ヘ押し上げていきます。（Fig.1）
d. CB1 を外します。（Fig.1）
e. フロントグリル Ass'y を外します。（Fig.1）
注意：
・ フロントグリル Ass'y を外す際、ヘラ等を使わずマイ
ナスドライバーだけを使って外すと、フロントグリル
Ass'y が破損する場合があります。
・ フロントグリル Ass'y を取り付ける場合、フロントグ
リル Ass'y のダボに速乾ボンドなどを塗って取り付け
ます。（ダボへ速乾ボンドなどを塗らずに差し込んだ
場合、フロントグリル Ass'y は容易に外れてしまいま
す。）
Bottom side
底面
Front grille assembly
フロントグリル Ass'y
MAIN (4) P.C.B.
CB1
Fig. 1
to CB1
Metalblade
ヘラ
NS-SW300/NS-SW200
Rubber sheet and cloth
ゴムシートと布
13
NS-SW300/NS-SW200
2. Removal of Front Panel
a. Remove the VOLUME knob and POWER knob. (Fig. 2)
b. Remove 6 screws (①). (Fig. 2)
c. Remove the front panel together with the MAIN (4)
P.C.B. (Fig. 2)
3. Removal of Driver
a. Remove 4 screws (②) and then pull out the driver.
(Fig. 2)
b. Disconnect the connector connected to the terminal
of the driver. (Fig. 2)
c. Remove the driver. (Fig. 2)
②
2. フロントパネルの外し方
a. VOLUME つまみと POWER つまみを外します。（Fig.2）
b. ①のネジ 6 本を外します。（Fig.2)
c. フロントパネルと MAIN（4）P.C.B. を一緒に外します。
（Fig.2）
3. スピーカーユニットの外し方
a. ②のネジ 4 本を外し、スピーカーユニットを引き出し
ます。（Fig.2)
b. スピーカーユニットの端子に接続されているコネク
ターを外します。（Fig.2)
c. スピーカーユニットを外します。（Fig.2）
Connectors
コネクター
Front grille assembly
フロントグリル Ass'y
MAIN (4) P.C.B.
Front panel
フロントパネル
VOLUME knob
VOLUME つまみ
スピーカーユ ニット
Driver
①
①
CB1
②
Cabinet assembly
キャビネット Ass'y
Bottom side
底面
NS-SW300/NS-SW200
POWER knob
POWER つまみ
Rubber sheet and cloth
ゴムシートと布
Fig. 2
14
Loading...