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Yamaha NS-SW300 Service Manual
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Yamaha NS-SW300 Service Manual

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NS-SW300/NS-SW200
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:
■ CONTENTS
To Service Personnel ............................................2
Front Panels .............................................................3
Rear Panels ...........................................................4–8
SPECIFICATIONS / 参考仕様 ................................... 8–10
Internal View .......................................................... 11
SERVICE PRECAUTIONS / サービス時の注意事項 ..... 12
DISASSEMBLY PROCEDURES / 分解手順 ........... 13–16
1 0 1 2 7 9
SERVICE MANUAL

IMPORTANT NOTICE

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.
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
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.
SUBWOOFER
P.O.Box 1, Hamamatsu, Japan
'13.12

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  • Page 1 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.
  • Page 2 NS-SW300/NS-SW200 ■ TO SERVICE PERSONNEL AC LEAKAGE WALL EQUIPMENT TESTER OR 1. Critical Components Information OUTLET UNDER TEST EQUIVALENT 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)
  • Page 3 NS-SW300/NS-SW200 ■ FRONT PANELS NS-SW300 Indicator インジケーター Front view Side view NS-SW200 Indicator インジケーター Front view Side view Bottom view U model...
  • Page 4 NS-SW300/NS-SW200 ■ REAR PANELS NS-SW300 U model T model R model K model...
  • Page 5 NS-SW300/NS-SW200 A model L, H models B, G models S model...
  • Page 6 NS-SW300/NS-SW200 J model NS-SW200 U model R model...
  • Page 7 NS-SW300/NS-SW200 T model B, G models A model L, H models...
  • Page 8 ■ SPECIFICATIONS / 参考仕様 NS-SW300 S model 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 / 入力感度 (50 Hz, 250 W/5 ohms, L+R) INPUT (SP) .................
  • Page 9 NS-SW300/NS-SW200 NS-SW200 * Specifications are subject to change without notice due to Type / 型式 ......Advanced Yamaha Active Servo Technology II product improvements. PWM Digital Drive High Efficient Amplifier ※  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。 Output Power / 出力 (100 Hz, 5 ohms, 10 % T.H.D.) ..................
  • Page 10 NS-SW300/NS-SW200 • DIMENSIONS / 寸法図 NS-SW300 Front view Side view 350 (13-3/4") (1-3/4") (1") 350 (13-3/4") 420 (16-1/2") Bottom view ø 60 Unit: mm (inch) 265 (10-3/8") 単位 ： mm（インチ） (1-3/4") (1-5/8") NS-SW200 Front view Side view 290 (11-3/8") (1-3/8") (1")
  • Page 11 NS-SW300/NS-SW200 ■ INTERNAL VIEW NS-SW300 NS-SW200 Front view Front view Rear view Rear view MAIN (4) P.C.B. MAIN (4) P.C.B. MAIN (3) P.C.B. MAIN (3) P.C.B. MAIN (6) P.C.B. MAIN (8) P.C.B. MAIN (1) P.C.B. MAIN (1) P.C.B. MAIN (8) P.C.B.
  • Page 12 NS-SW300/NS-SW200 ■ SERVICE PRECAUTIONS / サービス時の注意事項 Safety measures 安全対策 • Some internal parts in this product contain high voltages ・   この製品の内部には高電圧部分があり危険です。修理 and are dangerous. の際は、絶縁性の手袋を使用するなどの安全対策を Be sure to take safety measures during servicing, such 行ってください。 as wearing insulating gloves.
  • Page 13 Disassembly procedures of the NS-SW300 and NS- NS-SW300 と NS-SW200 の分解手順はほぼ同じです。そ SW200 are almost the same. For that reason, we のため、ここでは代表として NS-SW300 の分解手順で説 explain disassembly procedure of the NS-SW300 as a 明します。 representative here. 1. Removal of Front Grille Assembly 1. ...
  • Page 14 NS-SW300/NS-SW200 2. Removal of Front Panel 2.  フロントパネルの外し方 a. Remove the VOLUME knob and POWER knob. (Fig. 2) a.  VOLUME つまみと POWER つまみを外します。 （Fig. 2） b. Remove 6 screws ( ① ). (Fig. 2) b.  ① のネジ 6 本を外します。  （Fig. 2) c. Remove the front panel together with the MAIN (4) c. ...
  • Page 15 NS-SW300/NS-SW200 4. Removal of Rear Panel Assembly 4.  リアパネル Ass'y の外し方 a. Remove the bushing (Font panel side). (Fig. 3) a.  ブッシュ（フロントパネル側）を外します。  （Fig. 3) b. Remove 8 screws ( ③ ). (Fig. 3) b.  ③ のネジ 8 本を外します。  （Fig. 3) Screws ( ③ ) are identified with arrow marks ( ※ ...
  • Page 16 NS-SW300/NS-SW200 When checking the P.C.B.: P.C.B. をチェックする場合には： • Spread the rubber sheet and cloth. Then place this ・   ゴムシートと布を敷き、 その上に本機を置いてチェッ unit on the cloth and check it. (Fig. 4) クします。 （Fig. 4） • Reconnect all cables (connectors) that have been ・...
  • Page 17 NS-SW300/NS-SW200 NS-SW300 ■ BLOCK DIAGRAMS IC9B PHASE IC6B Q43C,Q45A IC6A IC7A Q25-Q32 Q33A,Q33C PS Amplifier IC7B NORM IC8A IC10B IC10A Pre Drive Power Drive INPUT 1 DRIVER L.P.F B.A.S.S SUBWOOFER 12dB/oct Q43A,Q45C IC8B MOVIE PS Amplifier HIGH CUT MUSIC OUTPUT A.N.I.C...
  • Page 18 NS-SW300/NS-SW200 NS-SW200 IC9B PHASE IC6A IC6B Q43C,Q45A IC7A IC8B Q25-Q32 Q33A,Q33C IC7B IC8A PS Amplifier Pre Drive Power Drive INPUT 1 NORM DRIVER L.P.F SUBWOOFER VOLUME 12dB/oct Q43A,Q45C PS Amplifier H.P.F 12dB/oct HIGH CUT OUTPUT A.N.I.C R180 Q11,12,14,15 Limitter Q40,42...
  • Page 19 NS-SW300/NS-SW200 ■ WIRING DIAGRAMS • OVERALL ASSEMBLY NS-SW300 NS-SW200 Rear view Side view to MAIN (4) Rear view Side view (CB1) to DRIVER MAIN (3) MAIN (8) to MAIN (4) (CB1) to DRIVER MAIN (6) W8A1 W8A2 W8A3 MAIN (1)
  • Page 20 NS-SW300/NS-SW200 NS-SW300 ■ PRINTED CIRCUIT BOARDS MAIN (3) (Side A) MAIN (1) (Side A) MAIN (6) (CB4) MAIN (4) DRIVER (CB1) SUBWOOFER W7A1 ACRYON W7A2 BASW SGND W7A3 SIG1 MAIN (6) (CB3) MAIN (8) (W7B1, W7B2, W7B3) 5 k-ohms T, K, B, G, L, H models...
  • Page 21 NS-SW300/NS-SW200 NS-SW300 MAIN (3) (Side B) MAIN (1) (Side B) IC11 T, K, B, G, L, H models T, K, B, G, L, H models MAIN (2) (Side B) • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location...
  • Page 22 NS-SW300/NS-SW200 NS-SW300 MAIN (4) MAIN (6) (Side A) (Side A) MAIN (3) MAIN (1) MAIN (2) STATUS (W4) (W3) (W5) indicator SGND U, R, A, S, J models -12D T, K, B, G, L, H models +12D VOLUME LEDG LEDR...
  • Page 23 NS-SW300/NS-SW200 NS-SW300 • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location MAIN (4) MAIN (6) (Side B) (Side B) IC10 MAIN (5) (Side B) IC10 T, K, B, G, L, H models...
  • Page 24 NS-SW300/NS-SW200 NS-SW200 MAIN (3) (Side A) MAIN (1) (Side A) T, B, G, L, H models SGND -15D +15D 5 k-ohms 10 W LEDG LEDR MAIN (4) (CB1) W7A3 W7A2 W7A1 MAIN (6) DRIVER (W7B1, W7B2, W7B3) SUBWOOFER MAIN (8)
  • Page 25 NS-SW300/NS-SW200 NS-SW200 MAIN (3) (Side B) MAIN (1) (Side B) T, B, G, L, H models IC11 T, B, G, L, H models MAIN (2) (Side B) • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location R, S models...
  • Page 26 NS-SW300/NS-SW200 NS-SW200 MAIN (4) MAIN (5) MAIN (8) (Side A) (Side A) (Side A) POWER SYSTEM AUTO CONNECTOR STANDBY STATUS indicator SGND HIGH -12D +12D VOLUME LEDG LEDR (Standby/On) W10B MAIN (3) (W1) MAIN (2) (W9A, W10A) • Semiconductor Location Ref no.
  • Page 27 NS-SW300/NS-SW200 NS-SW200 MAIN (4) MAIN (5) MAIN (8) (Side B) (Side B) (Side B) • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location MAIN (7) MAIN (6) MAIN (9) MAIN (6) MAIN (10) (Side B) (Side B)
  • Page 28 NS-SW300/NS-SW200 ■ PIN CONNECTION DIAGRAMS • ICs KIA78S05P-AT/P NJM555MD NJM4580E NJM78M12FA NJM79M12FA NJM2904M (TE3) 3: IN 3: COM 1: OUT 1: OUT 2: COM 2: IN • Diodes 1SS355VMTE-17 D3SBA60-7101 D5SBA60 EL02ZLF-H5K RR264M-400TR S1NB60 1.0A 600V Anode Anode Anode –...
  • Page 29 NS-SW300/NS-SW200 SCHEMATIC DIAGRAMS NS-SW300 MAIN 1/2 STATUS indicator MAIN (4) 1 2 5 9 - 7 S D R G V W / S 5 MAIN (3) S G N D (Standby/On) R E D MAIN (1) C B 1...
  • Page 30 NS-SW300/NS-SW200 NS-SW200 MAIN 2/2 MAIN (3) MAIN (4) MAIN (1) STATUS indicator A 1 8 3 7 1 2 5 9 - 7 S D R G V W / S 5 R 1 5 3 55.0 M A I N ( 3 )
  • Page 31 NS-SW300/NS-SW200 ■ REPLACEMENT PARTS LIST • ELECTRICAL COMPONENT PARTS WARNING ● Components having special characteristics are marked ⚠ and must be replaced with parts having specifications equal to those originally installed. ●  ⚠印のある部分は、安全確保部品を示しています。部品の交換が必要な場合、パーツリストに記載されている部品を使用し てください。 ●  部品価格ランクは、予告なく変更することがあります。 ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS: C.A.EL.CHP...
  • Page 32 VB390400 CN.BS.PIN NS-SW300 コネクター VB390500 CN.BS.PIN NS-SW300 コネクター VB389900 CN.BS.PIN NS-SW300 コネクター LB932030 CN.BS.PIN NS-SW300 コネクター CB7-8 WN077700 CLIP.FUSE CLIP PFC5000-0202F NS-SW300 ヒューズクリップ CB11-12 WN077700 CLIP.FUSE CLIP PFC5000-0202F NS-SW300 ヒューズクリップ UR867100 C.EL 10uF NS-SW300 ケミコン US062220 C.CE.CHP 220pF 50V B NS-SW300 チップセラコン...
  • Page 33 NS-SW300/NS-SW200 NS-SW300 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 ランク VR168400 C.MYLAR 0.12uF NS-SW300 マイラーコン VR168600 C.MYLAR.ML 0.18uF NS-SW300 積層マイラーコン C61-62 UR838100 C.EL 100uF NS-SW300 ケミコン VR169500 C.MYLAR 0.82uF NS-SW300 マイラーコン UR867100 C.EL 10uF NS-SW300 ケミコン C65-66 UR837470 C.EL...
  • Page 34 Ref No. Part No. Description Remarks Markets 部 品 名 ランク D6-9 WR897300 DIODE RR264M-400TR NS-SW300 ダイオード ⚠ V4756800 DIODE.BRG S1NB60 1A 600V NS-SW300 ブリッジダイオート ⚠ D11-13 WW783900 DIODE 1SS355VM NS-SW300 ダイオード V4756800 DIODE.BRG S1NB60 1A 600V NS-SW300 ブリッジダイオート ⚠ WR897300 DIODE RR264M-400TR NS-SW300 ダイオード...
  • Page 35 ZE574200 TR BF423ZL1G NS-SW300 トランジスタ * Q32 ZF968900 TR BF422 NS-SW300 トランジスタ WK192900 TR.PAIR STD03P/STD03N NS-SW300 ペアトランジスタ VQ116600 TR.PAIR 2SA1837/C4793 O,Y NS-SW300 ペアトランジスタ V7421800 TR 2SA1312-GR,BL NS-SW300 トランジスタ V7421700 TR.CHP 2SC3324-GR,BL NS-SW300 チップトランジスタ VJ927100 TR 2SC2712-Y(TE85R,F) NS-SW300 トランジスタ * Q40...
  • Page 36 VT658100 TERM.WRAP 352-TX119 NS-SW300 ラッピング端子 TP1-2 VT969000 PIN.TEST IRS-2049 NS-SW300 テストポイントピン WK126500 VR C 10KΩ NS-SW300 ロータリーボリューム WQ150900 VR A 5KΩ XVB14111 NS-SW300 二連ロータリーボリューム 04 WB419000 HOLDER.LED LDT-70G NS-SW300 ＬＥＤホルダー WE983600 SCR.BND.HD MFZN2B3 NS-SW300 バインド小ネジ * New Parts / 新規部品...
  • Page 37 NS-SW300/NS-SW200 NS-SW200 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 ランク ZH063800 P.C.B. MAIN NS-SW200 ＰＣＢ　ＭＡＩＮ ZH063900 P.C.B. MAIN NS-SW200 ＰＣＢ　ＭＡＩＮ ZH064000 P.C.B. MAIN NS-SW200 ＰＣＢ　ＭＡＩＮ ZH064100 P.C.B. MAIN NS-SW200 ＰＣＢ　ＭＡＩＮ ZH064200 P.C.B. MAIN NS-SW200 ＰＣＢ　ＭＡＩＮ ZH064200 P.C.B. MAIN NS-SW200 ＰＣＢ　ＭＡＩＮ...
  • Page 38 NS-SW300/NS-SW200 NS-SW200 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 ランク UR749100 C.EL 1000uF NS-SW200 ケミコン UR867100 C.EL 10uF NS-SW200 ケミコン UR867220 C.EL 22uF NS-SW200 ケミコン C74-75 WB540200 C.POL.MTL 0.1uF 250V NS-SW200 メタライズドポリコン UR838100 C.EL 100uF NS-SW200 ケミコン US064100 C.CE.CHP 0.01uF...
  • Page 39 NS-SW300/NS-SW200 NS-SW200 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 ランク D22-24 WW783900 DIODE 1SS355VM NS-SW200 ダイオード WY164800 DIODE.ZENR UDZV24B NS-SW200 ツェナーダイオード WR897300 DIODE RR264M-400TR NS-SW200 ダイオード D28-29 WY163300 DIODE.ZENR UDZV5.6B NS-SW200 ツェナーダイオード WR897300 DIODE RR264M-400TR NS-SW200 ダイオード D31-36...
  • Page 40 NS-SW300/NS-SW200 NS-SW200 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 ランク V7421800 TR 2SA1312-GR,BL NS-SW200 トランジスタ V7421700 TR.CHP 2SC3324-GR,BL NS-SW200 チップトランジスタ VJ927100 TR 2SC2712-Y(TE85R,F) NS-SW200 トランジスタ * Q40 ZF968900 TR BF422 NS-SW200 トランジスタ VJ927100 TR 2SC2712-Y(TE85R,F) NS-SW200 トランジスタ * Q42...
  • Page 41 NS-SW300/NS-SW200 NS-SW200 MAIN Carbon Resistors Value 1/4W Type Part No. 1/6W Type Part No. Value 1/4W Type Part No. 1/6W Type Part No. Ref No. Part No. Description Remarks Markets 部 品 名 ランク 1.0 Ω HJ35 3100 HF85 3100 11 kΩ...
  • Page 42 NS-SW300/NS-SW200 NS-SW300 • OVERALL ASSEMBLY Ref No. Part No. Description Remarks Markets 部 品 名 ランク ZH056500 CABINET ASSEMBLY キャビネットＡｓｓ’ｙ ZH053100 CABINET ASSEMBLY URTKABGLSH キャビネットＡｓｓ’ｙ ZH047700 CABINET ASSEMBLY RW, BL キャビネットＡｓｓ’ｙ * 2-1 ZH049300 P.C.B. ASSEMBLY MAIN ＰＣＢ　ＭＡＩＮ * 2-1 ZH049400 P.C.B. ASSEMBLY MAIN ＰＣＢ　ＭＡＩＮ...
  • Page 43 NS-SW300/NS-SW200 NS-SW300 • REAR PANEL ASSEMBLY Ref No. Part No. Description Remarks Markets 部 品 名 ランク 2-32 * 2-1 ZH049300 P.C.B. ASSEMBLY MAIN ＰＣＢ　ＭＡＩＮ 2-29 * 2-1 ZH049400 P.C.B. ASSEMBLY MAIN ＰＣＢ　ＭＡＩＮ 2-16 2-32 * 2-1 ZH049500 P.C.B. ASSEMBLY MAIN ＰＣＢ　ＭＡＩＮ...
  • Page 44 NS-SW300/NS-SW200 NS-SW200 • OVERALL ASSEMBLY Ref No. Part No. Description Remarks Markets 部 品 名 ランク ZH070200 CABINET ASSEMBLY キャビネットＡｓｓ’ｙ ZH060800 CABINET ASSEMBLY RW, BL キャビネットＡｓｓ’ｙ ZH066900 CABINET ASSEMBLY URTABGLH キャビネットＡｓｓ’ｙ * 2-1 ZH063800 P.C.B. ASSSEMBLY MAIN ＰＣＢ　ＭＡＩＮ * 2-1 ZH063900 P.C.B. ASSSEMBLY MAIN ＰＣＢ　ＭＡＩＮ...
  • Page 45 NS-SW300/NS-SW200 NS-SW200 • REAR PANEL ASSEMBLY Ref No. Part No. Description Remarks Markets 部 品 名 ランク * 2-1 ZH063800 P.C.B. ASSSEMBLY MAIN ＰＣＢ　ＭＡＩＮ * 2-1 ZH063900 P.C.B. ASSSEMBLY MAIN ＰＣＢ　ＭＡＩＮ 2-32 * 2-1 ZH064000 P.C.B. ASSSEMBLY MAIN ＰＣＢ　ＭＡＩＮ * 2-1 ZH064100 P.C.B. ASSSEMBLY MAIN ＰＣＢ　ＭＡＩＮ...
  • Page 46 NS-SW300/NS-SW200...

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