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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 / 

参考仕様

........................................ 3

INTERNAL VIEW ........................................................... 4
REAR PANELS .......................................................... 4~5
DISASSEMBLY PROCEDURES

 / 分解手順

............. 6~7

ADJUSTMENTS / 

調整 ..............................................

8~9

BLOCK DIAGRAM ....................................................... 10
PRINTED CIRCUIT BOARD .................................. 11~12
SCHEMATIC DIAGRAM .............................................. 13
PARTS LIST ........................................................... 15~23

YST-SW515

1 0 0 8 9 6

P.O.Box 1, Hamamatsu, Japan

SERVICE  MANUAL

SUBWOOFER SYSTEM

YST-SW515

www. xiaoyu163. com

QQ 376315150

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TEL 13942296513

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TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

http://www.xiaoyu163.com

http://www.xiaoyu163.com

Summary of Contents for YST-SW515

Page 1: ...ated 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 Di...

Page 2: ...act 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 この製品に使用されているすべての基板のハンダ付けに は Sn Ag Cu 錫 銀 銅 の合金である無鉛ハンダが使用 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...

Page 3: ... lbs 14 oz Finish Cherry Color U C R T K A B G L J models Black Color U C R T K A B G L J models Accessories 付属品 Subwoofer Cable 5 m x 1 J model Speaker Cable 4 m x 2 J model Nonskid Pad x 4 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 A Australian model C Canadian model B British model R General model G European model T C...

Page 4: ...N 3 P C B 6 MAIN 1 P C B 7 MAIN 5 P C B 8 MAIN 11 P C B 9 POWER TRANSFORMER 0 MAIN 6 P C B 2 3 7 8 9 0 4 5 6 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 5: ... models K model J model www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 6: ...ted to the terminal of the Driver Fig 1 Fig 2 Fig 1 2 フロントパネルAss yの外し方 a のネジ4本を外します Fig 2 取り外しには六角レンチ 2 5mm を使用します b フロントパネルAss yを引き出し CB4を外します Fig 2 2 Removal of Front Panel Ass y a Remove 4 screws 3 Fig 2 Use an Allen wrench 2 5mm to unscrew the Front Panel Ass y b Pull out the front panel ass y and disconnect the connector CB4 Fig 2 Driver スピーカーユニット 2 2 Base ベース 1 1 Connector コネクター CB4 Front Pa...

Page 7: ... B Connect all the connectors removed during disassembly back to the original positions Spread cloth first and place the rear panel ass y on it Fig 4 P C B チェックをする場合には 分解の際に外したコネクターをすべて元通りに接続 します ゴムシートと布を敷き その上にリアパネルAss y を置いてチェックします Fig 4 Fig 4 Rear Panel Ass y リアパネル Ass y 4 5 5 4 Cover カバー to CB4 to CB9 to CB10 Rubber Sheet and Cloth ゴムシートと布 Note Replace this Bush with the new article when remov...

Page 8: ...volume of the unit to the minimum position 3 Turn on the power to the unit 4 Adjust the output level of the signal generator and the volume of the unit so that the output level observed at oscilloscope CH2 is 28 Vp p Waveform observation With the settings made as described above observe the waveform obtained at CH1 for judgment パワーアンプの動作の確認 パワーアンプを修理した場合 下記の手順に従って 回路 図に示してあるA点とB点で正しい波形が得られることを 必ず確...

Page 9: ...h ends of R252 on the MAIN 3 P C B Refer to page 11 3 Connect the output signal from the signal generator to the INPUT 2 L MONO terminal of the unit 4 Set the signal generator for the sine wave of 100Hz 8mV 5 Turn on the power switch located on the rear panel Confirmation 1 Set the AUTO STANDBY switch to the LOW position 2 Turn on the STANDBY ON switch The display LED lights up green and its color...

Page 10: ...3 PRE DRIVE Q2 10 Q28 29 POWER DRIVE Q16A C 26A C LIMITER RY1 IC8 Q18 21 D6 14 33 34 0 1 Q1C 17C 24A Q27 31 PS AMP Q1A 17A 24C Q30 32 PS AMP B B H P F 12dB oct 12 12 REGULATOR POWER SUPPLY D2 IC6 IC1 F1 POWER SW5 B B POWER SUPPLY D1 STANDBY ON SW4 R T K models only REGULATOR Q207 208 D203 SUB POWER SUPPLY D11 RY2 T1 DRIVER 6 7 A N I C Q37 38 D36 BLOCK DIAGRAM w w w x i a o y u 1 6 3 c o m Q Q 3 7 ...

Page 11: ...D7 E6 D9 I2 D14 F3 D15 H6 D20 G2 D21 F6 D22 G3 D23 G6 D24 H6 D25 G3 D26 G3 D27 G7 D28 G6 D29 G6 D30 F6 D31 F6 D32 F6 D33 F6 D34 F3 D36 I2 D100 H7 D205 E6 D206 J6 IC1 I3 IC4 B5 IC6 I3 IC8 E2 IC10 C6 IC11 B4 IC201 B5 Semiconductor Location Ref No Location Q1A F5 Q1C H5 Q2 H3 Q3 H3 Q4 H3 Q5 H3 Q6 H3 Q7 H3 Q8 H3 Q9 G5 Q10 G3 Q16A F5 Q16C H5 Q17A G5 Q17C H5 Q18 F2 Q19 F2 Q20 F3 Q21 F3 Q22 H6 Q23 H6 Q24...

Page 12: ...MUSIC HIGH CUT B A S S STANDBY ON MAIN 4 P C B MAIN 8 P C B STANDBY ON VOLTAGE SELECTOR MAIN 9 P C B MAIN 7 P C B MAIN 6 P C B MAIN 11 P C B MAIN 6 P C B SW5 PRINTED CIRCUIT BOARD Foil side Lead Free Solder Used Semiconductor Location Ref No Location D11 B2 D201 I2 D202 H2 D203 B2 D204 B2 IC7 G2 IC202 B3 Q206 H2 Q207 B2 Q208 A2 Q209 B2 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 ...

Page 13: ...0 11 8 0 0 0 0 4 0 0 1 7 9 6 8 6 7 4 0 0 0 0 0 7 7 3 7 9 0 1 0 1 1 9 0 0 5 8 1 4 11 8 11 9 0 0 0 0 0 0 1 9 5 9 6 6 0 11 8 0 0 11 9 0 0 0 0 1 4 6 6 7 9 7 9 5 6 5 6 5 3 69 7 0 7 69 8 69 8 69 3 1 8 1 8 3 8 1 8 1 0 1 6 69 8 70 1 1 2 1 2 4 4 4 4 70 1 67 8 69 5 70 1 70 1 0 2 0 2 0 7 0 7 69 6 69 6 69 6 69 6 69 5 69 6 1 6 1 6 1 0 1 0 4 3 4 3 3 7 70 4 70 3 69 6 68 9 68 9 70 3 70 3 69 6 69 6 0 0 0 0 1 0 1 1...

Page 14: ...TL GROUND PLATE GND TERM GROUND TERMINAL HOLDER FUS FUSE HOLDER IC PRTCT IC PROTECTOR JUMPER CN JUMPER CONNECTOR JUMPER TST JUMPER TEST POINT L DTCT LIGHT DETECTING MODULE L EMIT LIGHT EMITTING MODULE LED DSPLY LED DISPLAY LED INFRD LED INFRARED MODUL RF MODULATOR RF PHOT CPL PHOTO COUPLER PHOT INTR PHOTO INTERRUPTER PHOT RFLCT PHOTO REFLECTOR PIN TEST PIN TEST POINT PLST RIVET PLASTIC RIVET R ARR...

Page 15: ...EL 8200uF 80V 電解コンデンサ 09 C19 V6092500 C EL 8200uF 80V 電解コンデンサ 09 C20 UR848470 C EL 470uF 25V ケミコン 01 C21 UR848470 C EL 470uF 25V ケミコン 01 C22 UR838100 C EL 100uF 16V ケミコン 01 C23 UR838100 C EL 100uF 16V ケミコン 01 C25 UR838100 C EL 100uF 16V ケミコン 01 C26 UA653100 C MYLAR 1000pF 50V マイラーコン 03 C27 UR897100 C EL 10uF 100V ケミコン 01 C28 VE326400 C MYLAR ML 0 22uF 50V 積層マイラーコン 01 C30 UA655150 C MYLAR 0 15uF 50...

Page 16: ...uF 16V ケミコン 01 C214 UA655470 C MYLAR 0 47uF 50V マイラーコン 01 C217 VA777700 C CE 220pF 50V RTKLBG セラコン 01 C218 UA654470 C MYLAR 0 047uF 50V マイラーコン 01 C219 FG644100 C CE 0 01uF 50V セラコン 01 C220 UR867100 C EL 10uF 50V ケミコン 01 C221 FG652100 C CE 100pF 50V セラコン 01 C222 FG613100 C CE 1000pF 50V セラコン 01 C223 FG644100 C CE 0 01uF 50V セラコン 01 C224 UA655100 C MYLAR 0 1uF 50V マイラーコン 01 C225 UR866100 C EL 1uF 50...

Page 17: ...L20U ダイオード 01 D32 VD631600 DIODE 1SS133 176 ダイオード 01 D33 VD631600 DIODE 1SS133 176 ダイオード 01 D34 VD631600 DIODE 1SS133 176 ダイオード 01 D36 VU264100 DIODE 1SR139 400 ダイオード 01 D100 VD631600 DIODE 1SS133 176 ダイオード 01 D201 VS079300 LED SPR 39MVW 2色 LED 01 D202 VD631600 DIODE 1SS133 176 ダイオード 01 D203 VG440300 DIODE ZENR MTZJ12C 12V RTKL ツェナーダイオード 01 D204 VD631600 DIODE 1SS133 176 ダイオード 01 D205 VG440300 DIO...

Page 18: ...スタ 02 Q24C iX632620 TR 2SC4793 O Y トランジスタ 02 Q26A iX632610 TR 2SA1837 O Y トランジスタ 02 Q26C iX632620 TR 2SC4793 O Y トランジスタ 02 Q27 VE198800 TR 2SC2705 O Y トランジスタ 01 Q28 VE198800 TR 2SC2705 O Y トランジスタ 01 Q29 VE198700 TR 2SA1145 O Y トランジスタ 01 Q30 VE198700 TR 2SA1145 O Y トランジスタ 01 Q31 iA097030 TR 2SA970 GR BL トランジスタ 01 Q32 iC224030 TR 2SC2240 GR BL トランジスタ 01 Q37 iA097030 TR 2SA970 GR BL トランジスタ 01 Q38 iC2...

Page 19: ...22Ω 1 4W 不燃化カーボン抵抗 01 R117 HV754220 R CAR FP 22Ω 1 4W 不燃化カーボン抵抗 01 R121 HV754220 R CAR FP 22Ω 1 4W 不燃化カーボン抵抗 01 R122 HV754220 R CAR FP 22Ω 1 4W 不燃化カーボン抵抗 01 R125 HV753220 R CAR FP 2 2Ω 1 4W 不燃化カーボン抵抗 01 R128 HV753470 R CAR FP 4 7Ω 1 4W 不燃化カーボン抵抗 01 R129 HV753470 R CAR FP 4 7Ω 1 4W 不燃化カーボン抵抗 01 R130 HV753470 R CAR FP 4 7Ω 1 4W 不燃化カーボン抵抗 01 R132 HV753220 R CAR FP 2 2Ω 1 4W 不燃化カーボン抵抗 01 R135 HV755560...

Page 20: ...kΩ HJ35 8680 HF85 8680 820 kΩ HJ35 8820 HF85 8820 1 0 MΩ HF45 9100 HF45 9100 1 2 MΩ HJ35 9120 1 5 MΩ HJ35 9150 HF85 9150 1 8 MΩ HJ35 9180 HF85 9180 2 2 MΩ HJ35 9220 HF85 9220 3 3 MΩ HJ35 9330 HF85 9330 3 9 MΩ HJ35 9390 4 7 MΩ HJ35 9470 HF85 9470 Value 1 4W Type Part No 1 6W Type Part No 1 0 Ω HJ35 3100 HF85 3100 1 8 Ω HJ35 3180 2 2 Ω HJ35 3220 HF85 3220 3 3 Ω HJ35 3330 HF85 3330 4 7 Ω HJ35 3470 HF...

Page 21: ...700 P C B ASS Y MAIN RT PCBメイン 4 1 1 WD825800 P C B ASS Y MAIN KL PCBメイン 4 1 1 WD825900 P C B ASS Y MAIN A PCBメイン 4 1 1 WD826000 P C B ASS Y MAIN BG PCBメイン 5 WB258800 BASE ベース 6 V2729700 EMBLEM A エンブレム A 09 7 WC690300 BUSH ブッシュ 8 V6933900 FERRITE CORE ESD R 25SD UC フェライトコア 20 WA206700 BIND HEAD TAPPING SCREW 4x35 MFZN2BL バインドTP1種 01 21 VF573000 BIND HEAD TAPPING SCREW 4x25 MFZN2BL バインドTPネジ 01 22 W...

Page 22: ... POWER ロッカSW 06 4 8 CB069250 BINDING TIE BK 1 束線止め 01 4 11 WD824700 REAR PANEL J リアパネル 4 11 WD824800 REAR PANEL UC リアパネル 4 11 WD824900 REAR PANEL RTKL リアパネル 4 11 WD825000 REAR PANEL A リアパネル 4 11 WD825100 REAR PANEL BG リアパネル 4 18 WB249900 COVER カバー 4 19 WB377300 PACKING パッキン 4 20 WB377400 PACKING E パッキン E 4 21 WC690300 BUSH ブッシュ 4 22 WB279400 REAR COVER リアカバー 04 4 28 WB828100 PACKING パッキン 4 31 V665...

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