Yamaha-MSR800W-sub-sm 维修电路原理图.pdf

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1、SERVICE MANUALCONTENTS（目次）SPECIFICATIONS（総合仕様）.3PERFORMANCE GRAPH（特性図）.4PANEL LAYOUT（）.4CIRCUIT BOARD LAYOUT（）.5DIMENSIONS（寸法図）.5WIRING DIAGRAM（結線図）.6IC BLOCK DIAGRAM（IC 図）.8DISASSEMBLY PROCEDURES（分解手順）.9CIRCUIT BOARDS（基板図）.12INSPECTIONS（検査）.15PARTS LISTBLOCK DIAGRAM（）OVERALL CIRCUIT DIAGRAM（回路図）POW

2、ERED SUBWOOFERMSR800WPA011778200505-115500HAMAMATSU, JAPANCopyright (c) Yamaha Corporation. All rights reserved. PDF-K126 05.06（ECF ： 無塩素系漂白） 使用。This document is printed on chlorine free (ECF) paper.RadioFans.CN 收音机爱 好者资料库MSR800W2 WARNINGComponents having special characteristics are marked and must

3、be replaced with parts having specification equal to those originally installed.印商品、安全維持重要部品。交換場合、安全必指定部品使用 。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 indust

4、ry, 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 failu

5、re 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 representative.IMPORTANT: This presentation or sale of this manual to any individual or firm does

6、not constitute authorization certification, recognition of any applicable technical capabilities, or establish a principal-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 departmen

7、ts 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 discrepancy appear to exist, please contact the distributors Service Division.WARNING: St

8、atic 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 bus).IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work b

9、efore 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) components may also contain traces of chemicals found by the California Health and Welfare A

10、gency (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 EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not in

11、hale 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.IMPORTANT NOTICE FOR THE UNITED KINGDOMConnecting the Plug and CordIMPORTANT.The wires in this main lead are colo

12、ured in accordance with the following code:GREEN-AND-YELLOW: EARTHBLUE: NEUTRALBROWN: LIVEAs 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-YELLO

13、W must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or colored GREEN or 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

14、must be connected to the terminal which is marked with the letter L or coloured RED.RadioFans.CN 收音机爱 好者资料库MSR800W3 SPECIFICATIONS（総合仕様） General specificationsTypePowered SubwooferSpeaker unit.38 cm cone (8 )Frequency range.40 Hz-120 Hz (10 dB)Maximum output level .122 dB (1 m on axis)Dimensions (W

15、x H x D).600 x 521 x 590 mmWeight.45 kgInstallation pole diameter.35 mm (1.375”)Accessories.Power cord (AC inlet type, 2.5 m)Owners manual Amp. unitMaximum output power500 W at 100 Hz, THD=1%, RL=8 800 W at 100 Hz, 20 ms nonclip, RL=8 Input sensitivity.+4 dB*Input impedance.30 kControlsLEVEL control

16、CUTOFF FREQ. control.80 Hz-100 Hz (variable)PHASE switch.NORMAL/REVERSEPOWER switch.ON/OFFConnectors (all balanced)INPUT A/B.XLR-3-31THRU A/B .XLR-3-32OUTPUT HIGH PASS A/B.XLR-3-32 (100 Hz, 18 dB/oct)IndicatorsPOWER.Green LEDPEAK/LIMIT .Red LEDPower requirementU.120 V, 60 HzH, B, O.230 V, 50 HzA.240

17、 V, 50 HzPower consumption.200 W*0 dB=0.775 V一般仕様形式 .38cm （8）再生周波数帯域.40Hz120Hz（10dB）最大出力音圧.122dB （軸上1m）最大外形寸法 （WHD）.600521590mm重量.45kg適合径.35mm付属品.電源（AC 型、2.5m）取扱説明書定格最大出力500W at 100Hz、 THD=1%、 RL=8800W at 100Hz、 20ms nonclip、 RL=8入力感度.+4dB*入力.30k LEVEL CUTOFF FREQ. .80Hz100Hz （可変）PHASE .NORMAL/REVER

18、SEPOWER .ON/OFF （型）INPUT A/B.XLR-3-31THRU A/B.XLR-3-32OUTPUT HIGH PASS A/B.XLR-3-32 (100Hz、 18dB/oct)POWER.緑色発光LEDPEAK/LIMIT.赤色発光LED電源.AC100V、 50/60Hz消費電力.200W*0dB=0.775VMSR800W4 PERFORMANCE GRAPH（特性図） PANEL LAYOUT（） Rear Panel（）1 PHASE switch2 POWER switch3 AC IN connector4 INPUT/THRU A/B connector

19、s5 OUTPUT HIGH PASS A/B connectors6 PEAK/LIMIT indicator7 POWER indicator8 LEVEL control9 CUTOFF FREQ. control1 PHASE 2 POWER 3 AC IN 端子4 INPUT/THRU A/B 端子5 OUTPUT HIGH PASS A/B 端子6 PEAK/LIMIT 7 POWER 8 LEVEL 9 CUTOFF FREQ. 1k10020FREQUENCY (Hz)RESPONSE (dB)403020100+10100Hz 90Hz 80HzCutoff Frequenc

20、y123987654MSR800W5 CIRCUIT BOARD LAYOUT（） DIMENSIONS（寸法図）AMPMIXINPUT SWAC INLET250.035.0600.0521.0590.0Unit: mm（単位）MSR800W6 WIRING DIAGRAM（結線図） VERSION: U, H, B, A, O4321AMPMIXINPUTSWAC INLETWOOFERConnector 4P (2P)CN204-2PCN202-6PCN201-6PCN105-6PCN104-4PCN106-2PBBCN103-4PCN102-3P (2P)CN101-3P (2P)BB

21、CN203-4PAMPMIXINPUTCN203CN204CN106CN105CN201CN202CN101NLCN102Connector Assembly 4P L=100 (束線)Connector Assembly 6P L=100 (束線)Connector Assembly 1P GND(束線)Connector Assembly 6P L=80 (束線)Connector Assembly 2P L=250 (束線)Connector Assembly 4P L=800 (束線)ACINLET SWMSR800W7 VERSION: JAMPMIXINPUTSWAC INLETH

22、ARMWOOFER4321Connector 4P (2P)CN204-2PCN202-6PCN201-6PCN105-6PCN104-4PCN106-2PBBCN103-4PCN102-3P (2P)CN101-3P (2P)CN302-3P (2P)CN301-3P (2P)BBCN203-4PAMPMIXINPUTCN203CN204CN302CN301CN201CN105CN106CN202CN102CN101NLConnector Assembly 4P L=100 (束線)Connector Assembly 3P L=150 (束線)Connector Assembly 1P G

23、ND(束線)Connector Assembly 3P L=180 (束線)Connector Assembly 6P L=80 (束線)Connector Assembly 2P L=250 (束線)Connector Assembly 4P L=800 (束線)SWACINLETHARMMSR800W8 IC BLOCK DIAGRAM（IC 図） TL072CP (AAX67450)INPUT: IC103Dual Operational Amplifier NJM2068L-D (AAX64880)MIX: IC106, IC107, IC108, IC109INPUT: IC102,

24、 IC104 NJM4580L (AAX67460)INPUT: IC101, IC105Dual Operational Amplifier1234V8765Output A+VNon-InvertingInput A-DC Voltage Supply+DC VoltageSupplyOutput BInvertingInput BNon-InvertingInput BInvertingInput A+ +1A2345678OUTA-INA+INA+INB-INBOUTB-V+V-+B-+MSR800W9分解手順1.（所要時間：10 分）1-1.1 6 本外、 外 。（図1）1-2.38

25、本外、 外。 （図1）1-3.SP束線 （黒/赤） 取外 。（写真1）2.Assy（所要時間：5分）2-1.315本外、Assy 外。（図2） DISASSEMBLY PROCEDURES1.Woofer (Time required: about 10 minutes)1-1.Remove the six (6) screws marked 1. The speaker grillecan be removed. (Fig.1)1-2.Remove the eight (8) screws marked 3. The woofer canthen be removed. (Fig.1)1-3

26、.Remove the SP connector assembly (red/black) installed tothe woofer. (Photo.1)2.Amplifier Assembly (Time reguired: about 5 minutes) 2-1.Remove the fifteen (15) screws marked 3. The amplifier assembly can be removed. (Fig.2)3311Speaker grille()1: Bind Head Wood Screw 4x14 MFZN2BL (AAX67400) 木3: Bind

27、 Head Screw 5x25 MFZN2BL (AAX67390)小Fig.1（図 1）SP Connector Assembly (Black)（SP束線黒）Woofer（）Photo.1（写真 1）SP Connector Assembly (Red)（SP束線赤）SP Connector Assembly (Red)（SP束線赤）33A6A63A433Rotation knob ()Power switch knob（)3: Bind Head Screw 5x25 MFZN2BL (AAX67390)小A4: Bind Head Screw 3x10 MFZN2BL (AAX647

28、50)小A6: Bonding Tapping Screw-B 3x8 MFZN2BL (AAX64840)Fig.2（図 2）MSR800W103.電源（所要時間：10分）3-1.Assy 外。 （2項参照）3-2.電源 六角 外、電源 外 。 （図3、 図4）4.AMP（所要時間：15分）4-1.Assy 外。 （2項参照）4-2. （CN201、 CN202、 CN203、 CN204） 接続外 。 （図3）4-3.A5 13本外 。 （図3）4-4.A1 4本外、AMP 外。（図3）5.INPUT（所要時間：10分）5-1.Assy 外。 （2項参照）5-2.A6 12 本外、 INP

29、UT 外。（図2）5-3. （CN103） 接続外 。 （図3）3.Power Transformer (Time required: about 10 minutes)3-1.Remove the amplifier assembly. (See procedure 2.)3-2.Remove the hexagonal bolt of the power transformer. Thepower transformer can then be removed. (Fig.3 & Fig.4)4.AMP Circuit Board (Time required: about 15 minu

30、tes)4-1.Remove the amplifier assembly. (See procedure 2.)4-2.Disconnect the connectors (CN201, CN202, CN203,CN204). (Fig.3)4-3.Remove the thirteen (13) screws marked A5. (Fig.3)4-4.Remove the four (4) screws marked A1 on the AMPcircuit board. The AMP circuit board can then be removed.(Fig.3)5.INPUT

31、Circuit Board (Time required: about 10 minutes)5-1.Remove the amplifier assembly. (See procedure 2.) 5-2.Remove the twelve (12) screws marked A6. The INPUTcircuit board can then be removed. (Fig.2)5-3.Disconnect the connectors (CN103). (Fig.3)A31A1A5A1A1Bracket AC jack support(/AC）A5Power transforme

32、r(電源）CN301CN302CN203CN204CN106CN105CN201CN202CN102NLCN101Hexagonal bolt(六角）CN104CN103(J model)MIXHARMAMPSWINPUTAC INLET1: Bind Head Wood Screw 4x14 MFZN2BL (AAX67400) 木A1: Bind Head Screw 3x6 MFZN2BL (AAX64740)小A3: Bind Head Tapping Screw-B 4x8 MFZN2BL (AAX64730)A5: Bind Head Sems Screw 3x12 MFZN2BL

33、 (AAX64760)小Fig.3（図 3）Power Transformer Installation（電源取付詳細）Fig.4（図 4）Rubber pad (）Power transformer (電源）Rubber pad (）Flat washer (平座金）Spring washer (座金）Transformer holder (）Hexagonal bolt (六角）MSR800W116.MIX（所要時間：10分）6-1. 2個外。 （図2）6-2.Assy 外 。 （2項参照）6-3.A14本外、MIX 外 。（図3）6-4. （CN105、CN106）接続外 。（図3）7.

34、SW（所要時間：10分）7-1. 外。 （図2）7-2.Assy 外 。 （2項参照）7-3. （CN101、CN102）接続外 。（図3）7-4.A12本外、 SW 外 。 （図3、写真2）8.AC INLET（所要時間：10分）8-1.Assy 外 。 （2項参照）8-2. （CN102） 接続外。 （図3）8-3.A42本 A3 1本外、 AC INLET /AC 外 。 （図2、図3、 写真2）9.HARM（所要時間：10分） （J仕向）9-1.Assy 外 。 （2項参照）9-2. （CN301、CN302）接続外 。（図3）9-3.14本外、 HARM 外。（図3、 写真3）6.M

35、IX Circuit Board (Time required: about 10 minutes)6-1.Remove the two (2) rotation knobs from the rear panelside. (Fig.2)6-2.Remove the amplifier assembly. (See produre 2.)6-3.Remove the four (4) screws marked A1 on the MIXcircuit board. The MIX circuit board can then be removed.(Fig.3)6-4.Disconnect

36、 the connectors (CN105, CN106). (Fig.3)7.SW Circuit Board (Time required: about 10 minutes)7-1.Remove the power switch knob. (Fig.2)7-2.Remove the amplifier assembly. (See procedure 2.)7-3.Disconnect the connectors (CN101, CN102). (Fig.3)7-4.Remove the two (2) screws marked A1 on the SW circuitboard

37、. The SW circuit board can then be removed. (Fig.3& Photo.2)8.AC INLET Circuit Board (Time required: about 10 minutes)8-1.Remove the amplifier assembly. (See procedure 2.)8-2.Disconnect the connectors(CN102). (Fig.3)8-3.Remove two (2) screws marked A4 and the screw markedA3. The AC INLET circuit boa

38、rd and the Bracket ACJack Support can then be removed. (Fig.2, Fig.3 & Photo.2)9.HARM Circuit Board (Time required: about 10 minutes) (J model only)9-1.Remove the amplifier assembly. (See procedure 2.)9-2.Disconnect the connectors (CN301, CN302). (Fig.3)9-3.Remove the four (4) screws marked 1. The H

39、ARM circuitboard can then be removed. (Fig.3 & Photo.3)SW Circuit Board（SW）A3A1A1Photo.2（写真 2）11HARM Circuit Board(HARM)Photo.3（写真 3）1MSR800W12 CIRCUIT BOARDS（基板図） AMP Circuit Boardto WOOFERIDLING ADJ.to TRANSFORMERIDLING ADJ.to MIX-CN105to MIX-CN106Component side（部品側）MSR800W13 INPUT Circuit Boardto

40、 MIX-CN104ABOUTPUT HIGH PASSINPUT/THRUComponent side（部品側）MSR800W14 MIX Circuit Board SW Circuit Board AC INLET Circuit BoardHARM Circuit Board (J model)to INPUT-CN103PHASE (NORM/REV)CUTOFF FREQ.LEVELto AMP-CN201to AMP-CN204PEAK/LIMITLEDPOWERLEDComponent side（部品側）to TRANSFORMERJ model: to HARM-CN302O

41、ther models: to AC INPOWERComponent side（部品側）AC INComponent side（部品側）to AC INto SW -CN101Component side（部品側）MSR800W15 INSPECTIONS1.Measuring conditions1-1.Measuring voltage:AC 120 V, 60 Hz (U)AC 230 V, 50 Hz (H, B)AC 240 V, 50 Hz (A)AC 220 V, 50 Hz (O)1-2.Load resistance:8 / Power capacity 1000 W1-3

42、.LEVEL control setting:Min.1-4.CUTOFF FREQ. control setting:Max. (100 Hz)1-5.Room temperature:244 2.Inspections2-1.Power on muting time:Check that the muting function is cancelled and the relay turns on in 31 seconds after the power switch is turned on.Also, check the POWER indicator lights up.2-2.I

43、dling current adjustment:Adjust VR201 and VR202 so that the voltage between pins 1 and 2 of CN205 and CN206 becomes 10.2 mV respectively.2-3.General inspections:Measure the following items in condition given below, and check the following values are satisfied.ItemsConditionsValuesInputOutputTypicalL

44、imited1Output powerLEVEL: Max. (10), 100 Hz input1% THD output550 W500 W2Distortion (THD+N)(with 20 Hz - 20 kHz filter)LEVEL: Max. (10), 100 Hz input400 W output0.05%0.1%3Voltage gainLEVEL: Max. (10), 40 Hz input, 6.5 dBu*34 dB341 dB4Cutoff frequency characteristicsCUTOFF FREQ.: Min.(Ref.: 40 Hz inp

45、ut, 100mV)(3 dB)62 Hz625 HzCUTOFF FREQ.: Center(Ref.: 40 Hz input, 100mV)(3 dB)65 Hz655 HzCUTOFF FREQ.: Max.(Ref.: 40 Hz input, 100mV)(3 dB)70 Hz705 Hz5HIGH PASS OUTPUT frequency responseCutoff frequency (100Hz, 3 dB)(Ref: 1kHz input, 100 mV)103 Hz1035 HzCharacteristic (50Hz, Oct/dB)(Ref: 1kHz input

46、, 100 mV)18 dB183 dB6Frequency response characteristicCUTOFF FREQ. control80 Hz(Min.)20 Hz input(Ref.: 40 Hz input)(Ref.: 10 W output) 11 dB112 dB30 Hz input(Ref.: 40 Hz input)2 dB21 dB50 Hz input(Ref.: 40 Hz input)1 dB11 dB100 Hz input(Ref.: 40 Hz input)10 dB102 dB100 Hz(Max.)20 Hz input(Ref.: 40 H

47、z input)(Ref.: 10 W output) 11 dB112 dB30 Hz input(Ref.: 40 Hz input)2 dB21 dB50 Hz input(Ref.: 40 Hz input)0 dB01 dB100 Hz input(Ref.: 40 Hz input)7 dB72 dB7DC offsetwithout signal input8 mV812 mV8S/N ratio(with A-weight filter)100 Hz inputLEVEL: Max. (10)500 W output100 dB95 dB9Gain/Efficiency(Pri

48、mary side power consumption)100 Hz input220 W output440 W44050 W10 Noise level(with 20 Hz - 20 kHz filter)LEVEL: Min. (0)Input: grounded with 600 resistanceLF OUTPUT(Speaker terminal) 0.5 mVLEVEL: Min. (0)Input: grounded with 600 resistanceHIGH PASS OUTPUT (A)0.024 mV0.0240.02 mVLEVEL: Min. (0)Input

49、: grounded with 600 resistanceHIGH PASS OUTPUT (B)0.024 mV0.0240.02 mVMSR800W16* 0dBu=0.775 V2-4.PHASE switchInput 40 Hz as reference, then check that the phase changes by 180 degrees to accommodate the input signal when the PHASEswitch is set to REV. Use an oscilloscope when checking.2-5.Protection

50、 circuit test:Apply DC +5 V (power supply output resistance = 10 k) between pins 1 and 2 of the connector CN207 and check that the relayturns off within 1 second. Also, check that it returns automatically within 10 seconds when the DC +5 V is shut off.ItemsConditionsValuesInputOutputTypicalLimited11