Yamaha-MSP-3-Service-Manual电路原理图.pdf

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1、MSP3 1 SERVICE MANUAL PA 011605 20010915-18000 1.386K-344 Printed in Japan 2001.10 HAMAMATSU, JAPAN CONTENTS SPECIFICATIONS. 3 PANEL LAYOUT. 4 BLOCK DIAGRAM. 5 CIRCUIT BOARD LAYOUT. 6 WIRING. 6 DISASSEMBLY PROCEDURE. 7 IC BLOCK DIAGRAM. 10 CIRCUIT BOARDS. 11 INSPECTION. 13 OVERALL CIRCUIT DIAGRAM PA

2、RTS LIST This 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 2 MSP3 IMPOR TANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service p

3、ersonnel. It has been assumed that 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

4、 product may result in per- sonal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representat

5、ive. 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 of any form. The data provided is belived to be accurate and applica

6、ble 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 changes in specification are subject to change without notice or obligation to retrofit. Should any

7、 discrepancy appear to exist, please contact the distributors Service Division. WARNING :Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bu

8、s.) IMPORTANT :Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to 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 (Where applicable

9、) 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 REASON WHAT SO EVE

10、R! 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. WARNING Component

11、s having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. IMPOR TANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and CoConnecting the Plug and CoConnecting the Plug and CoConnecting the Plug and CoConnecting the Plug a

12、nd Cor r r r rd d d d d IMPORTANT.The wires in this main lead are coloured in accordance with the following code: BLUE:NEUTRAL BROWN: LIVE As the colours of the wires in the main lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as f

13、ollows: The BLUE wire must be connected to the terminal that is marked with the letter N (or coloured BLACK). The BROWN wire must be connected to the terminal that is marked with the letter L (or coloured RED). Be certain that neither core is connected to the earth terminal of the three pin plug. 印商

14、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 MSP3 3 SPECIFICATIONS General specifi cations Type. 2-way Bass Refl ex Powered Speaker Crossover Frequency. 4 kHz Frequency Range. 65 Hz22 kHz Maximum Output Level. 98 dB (1 m on Axis) Dimensions (W X H X D). 144 X 236 X 167 mm Weight. 4.4 kg Magne

15、tic shielded. EIAJ Speaker unit Speaker Unit LF: 10 cm cone (4, magnetic shielded) HF: 2.2 cm dome (4, magnetic shielded) Enclosure Type: Bass Refl ex Amp.unit Maximum Output Power. 20W S/N: 95dB (IEC-A weighting) Input Sensitivity/Impedance LINE 1: 10 dB/10 k (RCA phono, Unbalanced) LINE 2: +4 dB/1

16、0 k (XLR, phone Balanced) Level control LINE 1 LINE 2 Tone control HIGH LOW Power Indicator. Green LED Power Requirement USA and Canada: . AC120V, 60 Hz Europe: . AC230V, 50 Hz Others: . AC240V, 50 Hz Power Consumption. 30W Option. BWS20-190 (Ceiling/ wall Bracket) 10k1k10020 FREQUENCY (Hz) RESPONSE

17、 (dB) 40 30 20 10 0 +10 Performance 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、Phon

18、e 共） LINE 1 LINE 2 HIGH LOW . 緑色LED 電源 . AC100V、50/60Hz 消費電力 . 20W . BWS20-190（天井吊 用壁掛用） 4 MSP3 PANEL LAYOUT Front Panel q LOW control w HIGH control e Power indicator r LINE 1 level control t LINE 2 level control LOWHIGHLINE12 qwert Rear Panel ON INPUT LINE 1 (10dB) LINE 2 (+4dB) PARALLEL OFF POWER

19、 yiu y POWER switch u INPUT LINE 1 jack i INPUT LINE 2 jacks q LOW w HIGH e r LINE 1 t LINE 2 （） （ ） （） y POWER u INPUT LINE 1 端子 i INPUT LINE 2 端子 MSP3 5 2-M5 (6)(6) 144 155 6044 236 167 LOWHIGHLINE12 BLOCK DIAGRAM LOW LINE 2 LINE 1 INPUT LINE 1 PARALLEL IC1 IC2 38 42 6 7 8 IC1 INPUT LINE 2 INPUT L

20、INE 1,2 Phone Jack HIGH TONE CONTROL SPEAKER P. AMP LF HF Units: mm （寸法図） （） DIMENSIONS （単位） 6 MSP3 WIRING CIRCUIT BOARD LAYOUT LOWHIGH12LINE INPUT LINE1 LINE2 (+4dB) (-10dB) PARALLEL POWER ON OFF SER NO. MADE IN CHINA YAMAHA CORPORATION 100V 20W 50/60Hz MODELMSP3 MONITOR SPEAKER PS E BMAIN D C MAIN

21、 AMAIN MAIN BMAIN D C MAIN AMAIN MAIN CN2 (10P) CN4 (3P) CN1 (6P) CN7 (3P) CN17 CN16 CN15 CN14 CN8(4P) CN3(4P) Power transformer (電源) Speaker LF Speaker HF （結線図） （） MSP3 7 DISASSEMBLY PROCEDURE 30: Bind Head Tapping Screw-B 5X16 BL (AAX29270) Fig.1 Fig.2 60: Bind Head Tapping Screw-B 4X8 BL (EG34019

22、0) H60: Bind Head Tapping Screw-B 4X8 BL (EG340190) 3030 H60 H60 60 1.Rear Panel (Time required: 5 min.) 1-1.Remove the seven (7) screws marked 30. The rear panel 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 t

23、hree (3) screws marked H60 and one (1) screw marked 60. The power transformer can then be removed. (Fig. 2) *Be careful for the grounding lug which is attached 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

24、 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 the rear panel and one (1) hexagonal nut of the parallel jack. The MAIIN A Circuit Board can then be removed toge

25、ther with the Heat Sink. (Fig. 3) 3-4.Remove the two (2) screws marked HS60 and the screw marked HS50 fixing the IC3. The MAIN A Circuit Board can then be removed from the Heat Sink.(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、 MAI

26、N A 外 。 （図） H30: Bind Head Tapping Screw-B 3X10 BL (AAX10840) Fig.3 H30 H30 （図3） （分解手順） （図1） （図2） 8 MSP3 Fig.5 R60: 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. The

27、 MAIN 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） HS60 Fig.4 HS50: Pan Head Screw-B M3X10 ZC (03751140) HS60: Bind Head Tapping Screw-B 3X10 BL (EP600140) HS50 R60 Fig.6 （図6） * As there is a soldered cable, remove it. 半田付、 取除。 5.MAIN D Circu

28、it 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 power switch 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）

29、 （図5） （図4） 小 B MSP3 9 Fig.7 S20: 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 the Woofer. The Woofer can then be removed. (Fig. 7) 7.MAIN B Cir

30、cuit 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 fixing the Shield Cover A. The Shield Cover can then be removed. (Fig. 8) 7-5.Remove

31、 the four (4) knobs, four (4) hexagonal nuts and four (4) washers. (Fig. 9) 7-6.Remove the MAIN B Circuit Board together with the Shield 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、

32、個 外。 （図） 7-6.BMAIN A外 。 S20 S20 Fig.8 C120: Bind Head Tapping Screw-B 3X10 BL (EP600140) （図8） B C120 Knobs, Hexagonal nuts, washers （、特殊六角、） Fig.9 （図9） 10 MSP3 IC BLOCK DIAGRAM Fig.10 S60:Bind Head Tapping Screw-B 3X15 (AAX13540) （IC図） （図10） 8.Tweeter (Time required: 10 min.) 8-1.Remove the rear pan

33、el. (See Procedure 1.) 8-2.Remove the four (4) screws marked S60. The Tweeter 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） S60 S60 M5218AL(AAX29330) MAIN-A: IC1, IC2 Dual Operational Amplifier 1 A 2345678 INV+INOUT AAA +VIN+INOUT BBB + B + MSP3 11 CIRCUIT BOARDS to Tr

34、ansformer PARALLEL INPUT LINE2 (+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 Board Pattern 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。 12 MSP3

35、 MAIN-B Circuit Board Pattern side （側）Component side （部品側） to MAIN-A-CN3 (14pin) to MAIN-A-CN1 (510pin) CN20: to Trans. Chassis CN17: to MAIN-D-CN18CN16: to MAIN-D-CN19 CN7: to Transformer S1 CN19: to MAIN-C-CN16 CN18: to MAIN-C-CN17 S1 C816 MAIN-C Circuit Board Pattern side （側）Component side （部品側）

36、MAIN-D Circuit Board Pattern side （側）Component side （部品側） MSP3 13 INSPECTIONS *VR2=LINE2qw Vol. (Balance), VR3=LINE1 Vol. (Unbalance) Items No. Input ConditionsOutput ConditionsRatingRemarks 1.2 0.3V Input sensitivity SP-OUT 8.9V(20W) 250 62mV Residual noise SP-OUT 1.0mV SP-OUT12 dB 02 dB -32 dB -32

37、 dB 32 dB 32 dB 8.9 (20W) 10W Frequency characteristic SP-OUT REF.=1kHz 2V output Low =Center High =Center REF.=100Hz 4 3 2 1 Tone-control characteristic SP-OUT Low =Center High =Center REF.=10kHz * 0 dBu=0.775V 5 6 Output powerSP-OUT SP-OUT THD=0.1% Power consumption 1. Test conditions (1) Input Si

38、gnal: 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. :Center Balance input VR2=MAX. VR3=MIN. Unbalance input VR2=MIN. VR3=M

39、AX. VR2=MIN. VR3=MIN. VR3=MAX. Input frequency =100Hz VR3=MAX. Input frequency =10kHz Low =MIN. Low =MAX. High =MIN. High =MAX. VR3=MAX. No - signal 3. 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

40、 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） 6 5 4 3 HFGEDCBA AHGFEDCB 1 2 MSP3 OVERALL CIRCUIT DIAGRAM （総回路図） MSP3 MSP3MSP3 J (100V) U (120V) A (240V) B (230V) H (230V) V (120V) W (230V) AAX28970

41、 AAX28980 AAX28990 AAX29000 AAX29010 AAX28980 AAX29010 AAX29090 AAX29100 AAX29110 AAX29120 AAX29120 AAX29100 AAX29120 AAX29290 (400mA, 250V) AAX29290 (400mA, 250V) AAX29300 (250mA, 250V) AAX29300 (250mA, 250V) AAX29300 (250mA, 250V) AAX29320 (400mA, 250V) AAX29300 (250mA, 250V) commonAC cordTransFUS

42、E MAIN A MAIN B MAIN D MAIN C OP AMP OP AMP OP AMP OP AMP HIGH LOW LINE2 LINE1 TRANSFORMER REGULATOR +15V POWER AMP REGULATOR -15V INPUT LINE 2 1 INPUT LINE 1 to MAIN A-CN3 (14) INPUT LINE 2 2 PARALLEL to MAIN B-CN2 (14) 4.7/50 Note : See parts list for details of circuit board component parts 注：部品詳

43、細参照下。 FS: Flame Proof C.Resistor （不燃化抵抗） Cera: Ceramic Capacitor（） Bu Bu Wh Wh LM1875T (AAX29340) POWER AMP MAIN A: IC3 1: +IN 2: IN 3:VEE 4:OUTPUT 5:VCC 1 3 5 2 4 Notes:DESTINATIONABBREVIATIONS Thenumbers“QTY”showquantitiesforeachunit. Thepartswith“-”in“PARTNO.”arenotavailableasspareparts. Thismark

44、“”intheREMARKScolumnmeansthesepartsareinterchangeable. Thesecondletteroftheshaded()partnumberisO,notzero. Thesecondletteroftheshaded()partnumberisI,notone. M:SouthAfricanmodel O:Chinesemodel Q:South-eastAsiamodel T :Taiwanmodel U :U.S.A.model V :Generalexportmodel(110V) W:Generalexportmodel(220) N,X

45、:Generalexportmodel Y :Exportmodel A :Australianmodel B :Britishmodel C :Canadianmodel D :Germanmodel E :Europeanmodel F :Frenchmodel H :NorthEuropeanmodel I :Indonesianmodel J :Japanesemodel PARTSLIST CONTENTS OVERALLASSEMBLY. 2 ELECTRICALPARTS. 4 WARNING Components having special characteristics are marked and must be replaced with parts having specification 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） MSP3 2 OVERALLASSEMBLY HS60 HS20 HS70 HS10 H