Yamaha-MSP5-spk-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL SPECIFICATIONS （総合仕様） .3 DIMENSIONS （寸法図）.4 PANEL LAYOUT （） .5 CIRCUIT BOARD LAYOUT （）.6 DISASSEMBLY PROCEDURES （分解手順） .7 CIRCUIT BOARDS （基板図） .11 INSPECTIONS （検査） .13 BLOCK DIAGRAM （） .15 CIRCUIT DIAGRAM （回路図） .16 PARTS LIST I CONTENTS （目次） PA011843 Copyright (c) Yamaha Corporation.

2、All rights reserved. 06.11 HAMAMATSU, JAPAN （ECF：無塩素系漂白）使用。 200612-34650 RadioFans.CN 收音机爱 好者资料库 MSP5 STUDIO 2 IWARNING 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。 IMPORTAN

3、T 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

4、 restated. WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruc- tion of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service

5、required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT:This presentation or sale of this manual to any individual or firm does not constitute authorization, certification, recognition of any applicable technical capabilities, or establish a p

6、rincipal-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 ch

7、anges in specifica- tion are subject to change without notice or obligation to retrofit. Should any 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 accumulat

8、ed by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus). 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

9、 product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) 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 P

10、LACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! 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 loca

11、ted inside the enclosure of this product, wash your hands before handling food. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNING:THIS APPARATUS MUST BE EARTHED IMPORTANT.The wires in this mains lead are coloured in accordance with the following code: GREEN-AND-YELLOW:EART

12、H BLUE:NEUTRAL BROWN:LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marke

13、d by the letter E or by the safety earth symbol or colored GREEN or colored GREEN and YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with

14、 the letter L or coloured RED. RadioFans.CN 收音机爱 好者资料库 MSP5 STUDIO 3 I SPECIFICATIONS （総合仕様） *These specifications apply to rated power supplies of 120, 230 and 240 V. *規格値定格電圧100 V供給時適用。 総合仕様 形式 .2 周波数. 2.5 kHz LF：24 dB/oct、HF：24 dB/oct 再生周波数帯域.50 Hz40 kHz （-10 dB） 最大出力音圧 . 101 dB、1 m on Axis 最大外形寸

15、法 （WHD） .179 x 279 x 208 mm 質量 .7.9 kg 防磁型 . Yes 部 LF . 12 cm （防磁型） HF . 2.5 cm （防磁型） 方式 . 型 材質 .PP 部 定格最大出力* . LF：40 W THD = 0.02 %、RL = 4 HF：27 W THD = 0.02 %、RL = 6 S/N、IHF-A filter . 94 dB、LEVEL = Max. 入力感度 XLR-3-31 .+4 dBu、LEVEL = Center -6 dBu、LEVEL = Max. PHONE .-10 dBu、LEVEL = Center -20 dBu

16、、LEVEL = Max. 入力端子、 XLR-3-31 （balanced） 、10 k PHONE （unbalanced） 、10 k .31 Positions Detent type VR （Min = - Attenuation） HIGH TRIM .+1.5/0/-1.5 dB at 15 kHz LOW TRIM . +1.5/0/-1.5/-3 dB at 60 Hz POWER switch . ON/OFF LED .緑色：Power On 赤：Clipping 消費電力. 60 W 電源 長 . 2.5 m 付属品 電源、脚 （2個） General Specific

17、ations Type .Biamp 2-way Powered speaker Crossover Frequency . 2.5 kHz LF: 24 dB/oct, HF: 24 dB/oct Overall Frequency Response . 50 Hz - 40 kHz (-10 dB) Maximum Output Level. 101 dB, 1 m on Axis Dimensiones (W x H x D) .179 x 279 x 208 mm (7-1/2” x 11” x 8-3/16”) Weight .7.9 kg Magnetic Shielding .Y

18、es Speaker section Components LF . 5” cone (Magnetic Shielding) HF. 1.0” dome (Magnetic Shielding) EnclosureType. Bass-reflex Material .PP Amplifier section Output Power*. LF: 40 W THD = 0.02 %, RL = 4 HF: 27 W THD = 0.02 %, RL = 6 S/N, IHF-A filter . 94 dB, LEVEL = Max. Input Sensitivity XLR-3-31.

19、+4 dBu, LEVEL = Center -6 dBu, LEVEL = Max. PHONE. -10 dBu, LEVEL = Center -20 dBu, LEVEL = Max. Input Connectors, Impedance XLR-3-31 (balanced), 10 k PHONE (unbalanced), 10 k ControlsLEVEL control . 31 Positions Detent type VR (Min = - Attenuation) HIGH TRIM. +1.5/0/-1.5 dB at 15 kHz LOW TRIM.+1.5/

20、0/-1.5/-3 dB at 60 Hz POWER switch. ON/OFF IndicatorsLED .Green: Power On Red: Clipping Power Consumption. 60 W AC code Length . 2.5 m Accessories AC cord x 1, Non-skid pads x 2 RadioFans.CN 收音机爱 好者资料库 MSP5 STUDIO 4 179 (7-1/16) 110* 20* 279 (11)3060 208 (8-3/16) * Non-skid pad positions. （脚貼付位置） (F

21、or mounting bracket（用）) 2-M5 I DIMENSIONS （寸法図） Unit: mm 単位：mm MSP5 STUDIO 5 3 4 7 5 6 12 I PANEL LAYOUT （） Front Panel （） Rear Panel （） 1 2 3 4 5 6 7 POWER indicator LEVEL control POWER switch AC IN connector LOW TRIM switch HIGH TRIM switch INPUT 1/2 connector 1 2 3 4 5 6 7 POWER LEVEL POWER AC IN

22、端子 LOW TRIM HIGH TRIM INPUT端子 MSP5 STUDIO 6 I CIRCUIT BOARD LAYOUT （） ? ? （電源） ? ? ? ? ? （） ? （） MSP5 STUDIO 7 Guide （） Cut （切込） Metal Grille （） I DISASSEMBLY PROCEDURE （分解手順） 1.Woofer (Time required: About 1 minute) 1-1Remove the metal grille. (Fig. 1) 1-2Remove the four (4) hexagonal socket screws

23、 marked 200. The woofer can then be removed. (Fig. 1) Fig. 1 （図 1）Fig. 2 （図 2） 1. （所要時間：約1分） 1-1外。 （図 1） 1-2200 6角穴付4本外、外 。 （図 1） ? ? （） ? ? （） ? Rear Panel Assembly （Assy） 210 210210 200:Hexagonal Socket Tapping Screw-P 4x14 (WJ271000) 6角 穴付 P 210:Bind Head Tapping Screw-P 5x25 (WJ286300) P 3. （所要時

24、間：約3分） 3-1Ass y外。 （2項参照） 3-2A 4本外、外。 （図 3） 軽手前力加容易外。 3.Tweeter (Time required: About 3 minutes) 3-1Remove the rear panel assembly. (See procedure 2) 3-2Remove the four (4) screws marked A. The tweeter can then be removed. (Fig. 3) *Pull the tweeter lightly away from the cabinet to re- move it. A A T

25、weeter （） Rear view 2.Rear panel Assembly (Time required: About 2 minutes) 2-1Remove the ten (10) screws marked 210. The rear panel assembly can then be removed. (Fig. 2) 2.Ass y （所要時間：約2分） 2-1210 10本外、Ass y外 。 （図 2） 取付時、切込 合。 *When installing the metal grille, align the cut with the guide. Fig. 3 （

26、図 3） MSP5 STUDIO 8 4.Power Transformer (Time required: About 3 minutes) 4-1Remove the rear panel assembly. (See procedure 2) 4-2Remove the three (3) screws marked B and screw marked C. The power transformer can then be removed. (Fig. 4) 4.電源 （所要時間：約3分） 4-1Ass y外。 （2項参照） 4-2B 3本、 C 外、電源外 。 （図 4） ? ?

27、（電源） ? ? ? ? ? ? ? ? ? Fig. 4 （図 4） E D D Transformer Bracket （金具） ? ? ? ? ? ? ? ? ? ? ? ? ? ? （金具） ? ? Fig. 5 （図 5） Fig. 6 （図 6） 5AMP、INPUT （所要時間：各約5分） 5-1Ass y外。 （2項参照） 5-2B 3本 C 外、電源外 。 （図 4） 5-3D 3本 E 外、金具外 。 （図 5） 5-4AMP： 5-4-1 F 2本 G 4本外、AMP外 。 （図 6） 5AMP Circuit Board, INPUT Circuit Board (Ti

28、me required: About 5 minutes each) 5-1Remove the rear panel assembly. (See procedure 2) 5-2Remove the three (3) screws marked B and screw marked C. The power transformer can then be removed. (Fig. 4) 5-3Remove the three (3) screws marked D and screw marked E. The transformer bracket can then be re-

29、moved. (Fig. 5) 5-4AMP Circuit Board: 5-4-1Remove the two (2) screws marked F and the four (4) screws marked G. The AMP circuit board can then be removed. (Fig. 6) MSP5 STUDIO 9 220A 220A 220B 220A 230, 240 230 220B 240 220A/B:Bonding Tapping Screw-B 3x8 (WJ286400) B 230:Hexagonal Nut M12 (WJ285500)

30、 6角 240:Washer 12x16x0.6 (WJ286200) Fig. 7 （図 7） 6.VOLUME Circuit Board (Time required: about 2 minutes) 6-1Remove the rear panel assembly. (See procedure 2) 6-2Remove the knob marked 50 and the nut. The VOLUME circuit board can then be removed. (Fig. 8) 7.LED Circuit Board (Time required: about 2 m

31、inutes) 7-1Remove the rear panel assembly. (See procedure 2) 7-2Remove the two (2) screws marked H. The LED circuit board can then be removed. (Fig. 9) 6.VOLUME （所要時間：約2分） 6-1Ass y外。 （2項参照） 6-250 外、外 。 （図 8） 7.LED （所要時間：約2分） 7-1Ass y外。 （2項参照） 7-2H 2本外、LED外。 （図 9） ? （） ? ? Fig. 8 （図 8） 50:Knob Volume

32、 (WJ269800) 5-5INPUT： 5-5-1 220A 4本外、金具外。 （図 7） 5-5-2 220B 3本、 230 6角 240 外、INPUT外。 （図 7） 5-5INPUT Circuit Board: 5-5-1Remove the four (4) screws marked 220A. The bracket shield can then be removed. (Fig. 7) 5-5-2Remove the three (3) screws marked 220B, the nut marked 230, and the washer marked 240.

33、 The IN- PUT circuit board can then be removed. (Fig. 7) ? ? ? ? ? Fig. 9 （図 9） MSP5 STUDIO 10 8.Heat Sink (Time required: about 6 minute) 8-1Remove the rear panel assembly. (See procedure 2) 8-2Remove the power transformer and the bracket trans. (See procedure 5-2, 5-3) 8-3Remove the AMP circuit bo

34、ard. (See procedure 5-4) 8-4Remove the seven (7) screws marked I and screw marked J. The heat sink can then be removed. (Fig. 10) *Pull the heat sink lightly away from the rear panel to remove it. 9.Power Switch (Time required: About 2 minutes) 9-1Remove the rear panel assembly. (See procedure 2) 9-

35、2Press the claw to remove the power switch. (Fig. 11) 8. （所要時間：約6分） 8-1Ass y外。 （2項参照） 8-2電源金具外。 （5-2、5-3項参照） 8-3AMP外。 （5-4項参照） 8-4I 7本 J 外、外 。 （図 10） 軽力加、容易外 。 9.POWER （所要時間：約2分） 9-1Ass y外。 （2項参照） 9-2押POWER外。 （図 11） ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? （） ? ? （POWER） ? （） Fig. 10 （図 10） Fig. 11 （図 11）

36、MSP5 STUDIO 11 I CIRCUIT BOARDS （基板図） WOOFERTWEETER to Power Transformer to INPUT CN106A to LED CN206 HIGH TRIM INPUT 21 (-20-10dBu)(-6+4dBu) dB -1.5 0 +1.5 LOW TRIM dB -3 -1.5 0 +1.5 to Power Transformer to Power SWto VOLUME CN108 AC INLET AMP Circuit Board Component side （部品側） Component side （部品側）

37、 INPUT Circuit Board MSP5 STUDIO 12 VOLUME Circuit Board LED Circuit Board Component side （部品側）Component side （部品側） VOLUME to INPUT CN103 to AMP CN201 MSP5 STUDIO 13 Measuring Voltage測定電圧AC100 V, 50/60 Hz (J) AC120 V, 60 Hz (U, C, T) AC240 V, 50 Hz (A) AC230 V, 50 Hz (B) AC230 V, 50 Hz (H) AC220 V,

38、60 Hz (K) AC230 V, 50 Hz (O) Load負荷LF 4 HF 6 LEVEL VR VRMAX. Tone-control SW SWHIGH SW, LOW SW: 0 position. 1. Electric performance （電気性能） INPUT CONDITIONS （入力条件） Output Power （定格出力） GAIN （利得） Frequency Response （周波数特性） Tone-control Characteristic （特性） Noise Level Residual Noise （残留雑音） MAX. Noise DC

39、 Voltage ITEM （項目） OUTPUT CONDITIONS （出力条件） 20 Hz 60 Hz 400 Hz 2 KHz 4 KHz 20 KHz LF: 24.2 dBu OUTPUT HF: 24.2 dBu OUTPUT LF SP-OUT 0.02 % 0.02 % 24.2 dBu 2 dB 24.2 dBu 2 dB 24.2 dBu 2 dB 24.2 dBu 2 dB -15 2 dB -6 1 dB +1 0.7 dB 0 0.5 dB -19 3 dB -14.5 2 dB -3.7 1.2 dB +1.5 1 dB -3 1.5 dB -1.5 1 dB

40、+1.5 1 dB -1.5 1 dB +1.5 1 dB -70 dBu -70 dBu -60 dBu 50 mV LIMIT （限界値） REF: LF OUTPUT 1 KHz 1 W (WF) REF: LF OUTPUT 1 KHz 1 W (WF) REF: LF OUTPUT 1 KHz 1 W (WF) REF: LF OUTPUT 1 KHz 1 W (WF) REF: LF OUTPUT 1 KHz 1 W (WF) REF: LF OUTPUT 1 KHz 1 W (WF) REF: LF OUTPUT LOW SW: 0 REF: HF OUTPUT HIGH SW:

41、 0 LF SP-OUT DIN AUDIO Filter HF SP-OUT DIN AUDIO Filter LF SP-OUT DIN AUDIO Filter HF SP-OUT LF-SP OUT INPUT1 400 Hz INPUT1 10 KHz INPUT1 -6 dBu 400 Hz VR: MAX INPUT1 +4 dBu 400 Hz VR: CENTER INPUT2 -20 dBu 400 Hz VR: MAX INPUT2 -10 dBu 400 Hz VR: CENTER INPUT1 HIGH SW: 0 LOW SW: 0 LOW = -3 REF: 60

42、 Hz LOW = -1.5 REF: 60 Hz LOW = +1.5 REF: 60 Hz HIGH = -1.5 REF: 15 KHz HIGH = +1.5 REF: 15 KHz LEVEL VR = MIN. HIGH SW: 0 LOW SW: 0 LEVEL VR = MAX. HIGH SW: 0 LOW SW: 0 No Signal No. 1 2 3 4 5 6 7 I INSPECTIONS （検査） LF SP-OUT LF SP-OUT LF SP-OUT LF SP-OUT HF SP-OUT LF SP-OUT HF SP-OUT HF SP-OUT (NOTE): 0 dBu = 0.775 V MSP5 STUDIO 14 ON/OFF時動作時間 、SP端子間現LF、HF共下表 範囲確認。 2. Muting operation （Muting動作） 3-1 Q2012.2 k介DC +3 V印加時 即刻OFF確認。 3-2 Q2022.2 k介DC -3 V印加