Yamaha-MSP3-spk-sm 维修电路原理图.pdf

MSP31SERVICE MANUALPA01160520010915-180001.386K-344 Printed in Japan 2001.10HAMAMATSU, JAPAN CONTENTSSPECIFICATIONS. 3PANEL LAYOUT. 4BLOCK DIAGRAM. 5CIRCUIT BOARD LAYOUT. 6WIRING. 6DISASSEMBLY PROCEDURE. 7IC BLOCK DIAGRAM. 10CIRCUIT BOARDS. 11INSPECTION. 13OVERALL CIRCUIT DIAGRAMPARTS LISTThis document is printed on chlorine free (ECF) paper with soy ink.（ECF：無塩素系漂白）使用。大豆油印刷。（総合仕様）（）（）（）（結線図）（分解手順）（IC図）（基板図）（検査）（総回路図）（目次）RadioFans.CN 收音机爱 好者资料库2MSP3IMPOR TANT NOTICEThis manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumedthat basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under-stood 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 per-sonal injury, destruction of expensive components and failure of the product to perform as specified. Forthese reasons, we advise all Yamaha product owners that all service required should be performed by anauthorized Yamaha Retailer or the appointed service representative.IMPORTANT :This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship ofany form.The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, andservice departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitableand changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear toexist, please contact the distributors Service Division.WARNING :Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect tothis bus.)IMPORTANT :Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply powerto the unit.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possiblyother 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 REASON WHATSO EVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handlingfood.WARNINGComponents having special characteristics are marked and must be replaced with parts having specification equal to thoseoriginally installed.IMPOR TANT NOTICE FOR THE UNITED KINGDOMConnecting the Plug and CoConnecting the Plug and CoConnecting the Plug and CoConnecting the Plug and CoConnecting the Plug and Cor r r r rd d d d dIMPORTANT.The wires in this main lead are coloured inaccordance with the following code:BLUE:NEUTRALBROWN: LIVEAs the colours of the wires in the main lead of this apparatus may notcorrespond with the coloured markings identifying the terminals inyour plug, proceed as follows:The BLUE wire must be connected to the terminal that is marked withthe letter N (or coloured BLACK).The BROWN wire must be connected to the terminal that is markedwith the letter L (or coloured RED).Be certain that neither core is connected to the earth terminal of thethree pin plug.印商品、安全維持重要部品。交換場合、安全必指定部品使用下。RadioFans.CN 收音机爱 好者资料库MSP33SPECIFICATIONSGeneral specificationsType. 2-way Bass Reflex Powered SpeakerCrossover Frequency. 4 kHzFrequency Range. 65 Hz22 kHzMaximum Output Level. 98 dB (1 m on Axis) Dimensions (W X H X D). 144 X 236 X 167 mm Weight. 4.4 kgMagnetic shielded. EIAJSpeaker unitSpeaker UnitLF: 10 cm cone (4, magnetic shielded)HF: 2.2 cm dome (4, magnetic shielded)EnclosureType: Bass ReflexAmp.unitMaximum Output Power. 20WS/N: 95dB (IEC-A weighting)Input Sensitivity/ImpedanceLINE 1: 10 dB/10 k (RCA phono, Unbalanced)LINE 2: +4 dB/10 k (XLR, phone Balanced)Level controlLINE 1 LINE 2 Tone controlHIGHLOWPower Indicator. Green LEDPower RequirementUSA and Canada: . AC120V, 60 Hz Europe: . AC230V, 50 Hz Others: . AC240V, 50 Hz Power Consumption. 30W Option. BWS20-190 (Ceiling/wall Bracket)10k1k10020FREQUENCY (Hz)RESPONSE (dB)403020100+10Performance graph（特性図）（総合仕様） 総合仕様形式 . 2 型周波数 . 4kHz再生周波数帯域 . 65Hz 22kHz最大出力音圧 . 98dB（軸上 1m）最大外形寸法（W H D）.144 236167mm重量 . 4.4kg防磁仕様 . EIAJ 部LF：10cm（4 、防磁型） 、HF：2.2cm（4 、防磁型）方式：型 部S/N： 95dB（IEC-A使用時）定格最大出力 .20W入力感度LINE 1： 10dB/10k（RCA 、）LINE 2： 4dB/10k（XLR、Phone 共）LINE 1LINE 2HIGHLOW . 緑色LED電源 . AC100V、50/60Hz消費電力 . 20W . BWS20-190（天井吊用壁掛用）4MSP3PANEL LAYOUTFront Panelq LOW controlw HIGH controle Power indicatorr LINE 1 level controlt LINE 2 level controlLOWHIGHLINE12qwertRear PanelONINPUTLINE 1(10dB)LINE 2(+4dB)PARALLELOFFPOWERyiuy POWER switchu INPUT LINE 1 jacki INPUT LINE 2 jacksq LOW w HIGHe r LINE 1 t LINE 2 （）（ ）（）y POWER u INPUT LINE 1 端子i INPUT LINE 2 端子MSP352-M5(6)(6)1441556044236167LOWHIGHLINE12BLOCK DIAGRAMLOWLINE 2LINE 1INPUT LINE 1PARALLELIC1IC23842678IC1INPUT LINE 2INPUT LINE 1,2Phone JackHIGHTONE CONTROLSPEAKERP. AMPLFHFUnits: mm（寸法図）（）DIMENSIONS（単位）6MSP3WIRINGCIRCUIT BOARD LAYOUTLOWHIGH12LINEINPUTLINE1LINE2(+4dB)(-10dB)PARALLELPOWERONOFFSER NO.MADE IN CHINAYAMAHA CORPORATION100V 20W 50/60HzMODELMSP3MONITOR SPEAKERPSEBMAINDCMAINAMAINMAINBMAINDCMAINAMAINMAINCN2(10P)CN4(3P)CN1(6P)CN7(3P)CN17CN16CN15 CN14CN8(4P)CN3(4P)Power transformer(電源)SpeakerLFSpeakerHF（結線図）（）MSP37DISASSEMBLY PROCEDURE30: Bind Head Tapping Screw-B 5X16 BL (AAX29270)Fig.1Fig.260: Bind Head Tapping Screw-B 4X8 BL (EG340190)H60: Bind Head Tapping Screw-B 4X8 BL (EG340190)3030H60H60601.Rear Panel (Time required: 5 min.)1-1.Remove the seven (7) screws marked 30. The rearpanel can then be removed. (Fig. 1)2.Power Transformer (Time required: 10 min.)2-1.Remove the rear panel. (See Procedure 1.)2-2.Remove the three (3) screws marked H60 and one(1) screw marked 60. The power transformer canthen be removed. (Fig. 2) *Be careful for the grounding lug which isattached to the chassis of the power transformer.1.（所要時間:分）1-1.30本外、 外。 (図)2.電源（所要時間:10 分）2-1.外。 （項参照）2-2.H60本60本外、電源外。 （図）電源取付、注意。3.MAIN A Circuit Board (Time required: 15 min.)3-1.Remove the rear panel. (See Procedure 1.)3-2.Remove the power transformer. (See Procedure 2.)3-3.Remove the eight (8) screws marked H30 from therear panel and one (1) hexagonal nut of the paralleljack. The MAIIN A Circuit Board can then be removedtogether with the Heat Sink. (Fig. 3)3-4.Remove the two (2) screws marked HS60 and thescrew marked HS50 fixing the IC3. The MAIN ACircuit Board can then be removed from the HeatSink.(Fig. 4)3.MAIN A （所要時間:15 分)3-1.外。 （項参照）3-2.電源外。 （項参照）3-3.H308本特殊六角個外、 共MAIN A 外。 （図）3-4.HS60本、 IC3止HS50外、 MAIN A 外。 （図）H30: Bind Head Tapping Screw-B 3X10 BL (AAX10840)Fig.3H30H30（図3）（分解手順）（図1）（図2）8MSP3Fig.5R60: Bind Head Tapping Screw-B 3X10 BL (EP600140)4.MAIN C Circuit Board (Time required: 10 min.)4-1.Remove the rear panel. (See Procedure 1.)4-2.Remove the two (2) screws marked R60. TheMAIN C Circuit Board can then be removed. (Fig. 5)4.MAIN C（所要時間:10 分)4-1.外。 （項参照）4-2.R60本外、MAIN C 外。 （図）HS60Fig.4HS50: Pan Head Screw-B M3X10 ZC (03751140)HS60: Bind Head Tapping Screw-B 3X10 BL (EP600140)HS50R60Fig.6 （図6） * As there is a soldered cable, remove it.半田付、取除。5.MAIN D Circuit Board (Time required : 15 min.)5-1.Remove the rear panel. (See Procedure 1.)5-2.Remove the MAIN C Circuit Board. (See Procedure 4.)5-3.Remove the MAIN D Circuit Board from the powerswitch by unsoldering it. (Fig. 6)5.MAIN D（所要時間:15 分)5-1.外。 （項参照）5-2.MAIN C外。 （項参照）5-3.半田取除、 電源MAIN D外。 （図）（図5）（図4）小 BMSP39Fig.7S20: SOCKT Tapping Screw-B 4X16 BL (AAX29260)（図7）6.Woofer (Time required: 10 min.)6-1.Remove the rear panel. (See Procedure 1.)6-2.Remove the SP Cabinet.6-3.Remove the four (4) screws marked S20 fixing theWoofer. The Woofer can then be removed. (Fig. 7)7.MAIN B Circuit Board (Time required: 20 min.)7-1.Remove the rear panel. (See Procedure 1.)7-2.Remove the Woofer. (See Procedure 6.)7-3.Remove the bolts fixing the cabinet. (Fig. 8)7-4.Remove the two (2) screws marked C120 fixingthe Shield Cover A. The Shield Cover can then beremoved. (Fig. 8)7-5.Remove the four (4) knobs, four (4) hexagonal nutsand four (4) washers. (Fig. 9)7-6.Remove the MAIN B Circuit Board together with theShield Cover B.6.（所要時間:10 分)6-1.外。 （項参照）6-2.SP 外。6-3.止S20本外、取外。 （図）7.MAIN B （所要時間:20 分)7-1.外。 （項参照）7-2.外。 （項参照）7-3.取付外。 （図）7-4. A 止C120本外、外。 （図）7-5.個、 特殊六角個、 個外。 （図）7-6.BMAIN A外。S20S20Fig.8C120: Bind Head Tapping Screw-B 3X10 BL (EP600140)（図8）BC120Knobs, Hexagonal nuts, washers（、特殊六角、）Fig.9 （図9）10MSP3IC BLOCK DIAGRAMFig.10S60:Bind Head Tapping Screw-B 3X15 (AAX13540)（IC図）（図10） 8.Tweeter (Time required: 10 min.)8-1.Remove the rear panel. (See Procedure 1.)8-2.Remove the four (4) screws marked S60. TheTweeter can then be removed. (Fig. 10)8.（所要時間:10 分)8-1.外。 （項参照）8-2.S60本外、 外。（図10）S60S60M5218AL(AAX29330)MAIN-A: IC1, IC2Dual Operational Amplifier 1A2345678INV+INOUTAAA+VIN+INOUTBBB+B+MSP311CIRCUIT BOARDSto TransformerPARALLELINPUTLINE2 (+4dB)LINE1 (-10dB)to MAIN-B-CN2 (510pin)to MAIN-B-CN1 (14pin)to Speaker HF (3pin,4pin)to Speaker LH (1pin,2pin) MAIN-A Circuit BoardPattern side （側）Component side （部品側）Note: See parts list for details of circuit board component parts.（基板図）注：部品詳細参照下。12MSP3 MAIN-B Circuit BoardPattern side （側）Component side （部品側）to MAIN-A-CN3 (14pin)to MAIN-A-CN1 (510pin)CN20: to Trans. ChassisCN17: to MAIN-D-CN18CN16: to MAIN-D-CN19CN7: to TransformerS1CN19: to MAIN-C-CN16CN18: to MAIN-C-CN17S1C816 MAIN-C Circuit BoardPattern side （側）Component side （部品側） MAIN-D Circuit BoardPattern side （側）Component side （部品側）MSP313INSPECTIONS*VR2=LINE2qw Vol. (Balance), VR3=LINE1 Vol. (Unbalance)ItemsNo.Input ConditionsOutput ConditionsRatingRemarks1.2 0.3VInputsensitivitySP-OUT8.9V(20W)250 62mVResidual noiseSP-OUT 1.0mVSP-OUT12 dB02 dB-32 dB-32 dB32 dB32 dB8.9 (20W)10WFrequencycharacteristicSP-OUTREF.=1kHz2V outputLow =CenterHigh =CenterREF.=100Hz4321Tone-controlcharacteristicSP-OUTLow =CenterHigh =CenterREF.=10kHz* 0 dBu=0.775V56Output powerSP-OUTSP-OUTTHD=0.1%Powerconsumption1. Test conditions (1) Input Signal: 1kHz2%, Continuous SIN wave, Unbalanced input (2) Output load: 4, Resistance load (3) AC power supply: AC100V2%, 50Hz2% (J) : AC120V2%, 60Hz2% (U, V) : AC230V2%, 50Hz2% (B, H, W) : AC240V2%, 50Hz2% (A) (4) Tone control Vol. :CenterBalance inputVR2=MAX.VR3=MIN.Unbalance inputVR2=MIN.VR3=MAX.VR2=MIN.VR3=MIN.VR3=MAX.Input frequency=100HzVR3=MAX.Input frequency=10kHzLow =MIN.Low =MAX.High =MIN.High =MAX.VR3=MAX.No - signal3. Specifications（試験条件）2. Environment (1) Ambient teperature : 25 5C (2) Ambient humidity : 65 5%（検査）（入力条件）（出力条件）（規格値）（備考）（出力）2V output（出力）2V output（出力）（項目）（入力感度）（残留）（周波数特性）（特性）（出力電力）（消費電力）（周囲温度）（周囲湿度）（周囲環境）+4dBu-10dBu（入力信号: 1kHz2%、連続SIN波、入力）（出力負荷: 4、抵抗負荷）（AC電源）（Vol.）（検査） 6543HFGEDCBAAHGFEDCB12MSP3 OVERALL CIRCUIT DIAGRAM （総回路図）MSP3MSP3MSP3J (100V)U (120V)A (240V)B (230V)H (230V)V (120V)W (230V)AAX28970AAX28980AAX28990AAX29000AAX29010AAX28980AAX29010AAX29090AAX29100AAX29110AAX29120AAX29120AAX29100AAX29120AAX29290 (400mA, 250V)AAX29290 (400mA, 250V)AAX29300 (250mA, 250V)AAX29300 (250mA, 250V)AAX29300 (250mA, 250V)AAX29320 (400mA, 250V)AAX29300 (250mA, 250V)commonAC cordTransFUSEMAIN AMAIN BMAIN DMAIN COP AMPOP AMPOP AMPOP AMPHIGHLOWLINE2LINE1TRANSFORMERREGULATOR +15VPOWER AMPREGULATOR -15VINPUTLINE 21INPUTLINE 1to MAIN A-CN3 (14)INPUTLINE 22PARALLELto MAIN B-CN2 (14)4.7/50 Note : See parts list for details of circuit board component parts 注：部品詳細参照下。FS: Flame Proof C.Resistor （不燃化抵抗）Cera: Ceramic Capacitor（）BuBuWhWhLM1875T (AAX29340)POWER AMPMAIN A: IC31: +IN2: IN3:VEE4:OUTPUT5:VCC13524Notes:DESTINATIONABBREVIATIONSThenumbers“QTY”showquantitiesforeachunit.Thepartswith“-”in“PARTNO.”arenotavailableasspareparts.Thismark“”intheREMARKScolumnmeansthesepartsareinterchangeable.Thesecondletteroftheshaded()partnumberisO,notzero.Thesecondletteroftheshaded()partnumberisI,notone.M:SouthAfricanmodelO:ChinesemodelQ:South-eastAsiamodelT :TaiwanmodelU :U.S.A.modelV :Generalexportmodel(110V)W:Generalexportmodel(220)N,X:GeneralexportmodelY :ExportmodelA :AustralianmodelB :BritishmodelC :CanadianmodelD :GermanmodelE :EuropeanmodelF :FrenchmodelH :NorthEuropeanmodelI :IndonesianmodelJ :JapanesemodelPARTSLISTCONTENTSOVERALLASSEMBLY. 2ELECTRICALPARTS. 4 WARNINGComponents having special characteristics are marked and must be replaced with parts havingspecification equal to those originally installed.印部品、安全維持重要部品。交換場合、安全必指定部品使用下。部品価格、変更。Remarks欄記数字、用品部品準備。PARTNO.“-”部分、用部品準備。REMARKS欄部品、併用部品。網掛付PARTNO.2番目文字。網掛付PARTNO.2番目文字、。（目次）（総組立）（電気部品）MSP32OVERALLASSEMBLYHS60HS20HS70HS10HS30HS40HS50H70H50H60H40H10R10R90R90R80H20H30H30R80R50R40R30R20S50S40S70S10S130S20S60S30S30aC20C50C70C80C160C150C150C110C120S140S150R606020100908070504010S230R50British modelApply bond hear（塗布）TX913241SC608LVZ（総組立）MSP33:NewPartsREFNO.PARTNO.DESCRIPTIONREMARKSQTYRANKRANK:Japanonly*OVERALL ASSEMBLYMSP310Damping Material35296620Rear Panel Assembly30Bind Head Tapping Screw-B5X16 BL740Knob450Punching Cover60Bind Head Tapping Screw-B4X8 BL0170Cushion85X11X1480SP Cabinet Assembly90Circuit Board AssemblyMAIN B100HEAT SINK ASSEMBLYREAR PANEL ASSEMBLYR10Rear PanelJR10Rear PanelU,C,VR10Rear PanelAR10Rear PanelB,H,WR20AC CordJR20AC CordU,C,VR20AC CordAR20AC CordBR20AC CordH,WR30Cord StopperSR-4K-4R40Power SwitchJW-M11RR50Circuit BoardMAIN C+DR60Bind Head Tapping Screw-B3X10 BL201R80Cushion8X130X22R90Cushion8X221X22HEAT SINK ASSEMBLYH10Heat Sink SubH20Hexagonal NutM12 BLH30Bind Head Tapping Screw-B3X10 BL10H40Power TransformerJH40Power TransformerU,C,VH40Power TransformerAH40Power TransformerB,H,WH50Cord BinderL80 M4H60Bind Head Tapping Screw-B4X8 BL301H70Cord HolderSKB-1M2HEAT SINK SUB ASSEMBLYHS10Heat SinkHS20Circuit BoardMAIN AHS30Insul MicaSK16BHS40BushB-2401HS50Pan Head Screw-BM3X10 ZCHS60Bind Head Tapping Screw-B3X10 BL201HS70ICLM1875TPOWER AMP (IC3)CIRCUIT BOARD B ASSEMBLYC20LED LensA248A0C50Circuit BoardMAIN BC70Cushion40X320X2C80Shield Cover AC110Shield Cover BC120Bind Head Tapping Screw-B3X10 BL201C150Cushion40X15X25C160Cushion70X15X2SP CABINET ASSEMBLYS2SP CabinetS10Speaker LFConeS20SOCKT Tapping Screw-B4X16 BL4S30Speaker HFDomeS30aElectrolytic Cap.-BP4.7/5001S40Connctor AssemblySPS50Cushion40X200X2S60Bind Head Tapping Screw-B3X15 BL4S70CushionTWS130MISC Bolt FlangeA274A0-22S140Nut Flange2S150Bracket Case1-AAX29270AAX29170AAX29310EG340190AAX31310-AAX29180AAX29190AAX29200AAX29210AAX28970AAX28980AAX28990AAX29000AAX29010V 2 4 3 7 5 0AAX13550AAX29150EP600140AAX31320AAX31330-AAX28950AAX