Yamaha-YSTSW012-sub-sm(1) 维修电路原理图.pdf

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1、I CONTENTSTO SERVICE PERSONNEL . 2SPECIFICATIONS. 3INTERNAL VIEW . 4REAR PANELS . 56DISASSEMBLY PROCEDURES . 78BLOCK DIAGRAM. 8PRINTED CIRCUIT BOARD . 9SCHEMATIC DIAGRAM . 10PARTS LIST. 1115 2005 All rights reserved.This manual is copyrighted by YAMAHA and may not be copied orredistributed either in

2、 print or electronically without permission.SUBWOOFER SYSTEMYST-SW012IMPORTANT NOTICEThis manual has been provided for the use of authorized YAMAHARetailers and their service personnel.It has been assumed that basic service procedures inherent to the industry,and more specifically YAMAHA Products, a

3、re already known andunderstood by the users, and have therefore not been restated.WARNING:Failure to follow appropriate service and safetyprocedures when servicing this product may result inpersonal injury, destruction of expensive components,and failure of the product to perform as specified. Forth

4、ese reasons, we advise all YAMAHA product ownersthat any service required should be performed by anauthorized YAMAHA Retailer or the appointed servicerepresentative.IMPORTANT:The presentation or sale of this manual to any individualor firm does not constitute authorization, certification orrecogniti

5、on of any applicable technical capabilities, orestablish 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 departmentsof YAMAHA are continually striving to improve YAMAHA

6、 products.Modifications are, therefore, inevitable and specifications are subject tochange without notice or obligation to retrofit. Should any discrepancyappear to exist, please contact the distributors Service Division.WARNING:Static discharges can destroy expensive components.Discharge any static

7、 electricity your body may haveaccumulated by grounding yourself to the ground buss inthe unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and partreplacement. Recheck all work before you apply powerto the unit.YST-SW012 05.12100994P.O.Box 1, Hamamat

8、su, JapanSERVICE MANUALRadioFans.CN 收音机爱 好者资料库YST-SW0122YST-SW012WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEI TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked sand must be replaced with parts having specification

9、s equalto those originally installed.2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohms shuntedby 0.15F.“CAU

10、TION”“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.6A,125V FUSE.”CAUTIONF1: REPLACE WITH SAME TYPE 1.6A, 125V FUSE.ATTENTIONF1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.6A, 125V.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this pr

11、oduct 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 PLACE

12、SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!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 insid

13、e the enclosure of this product, wash your hands beforehandling food.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.About Lead Free SolderSide ASide BSMT REFLOW ProcessMI FLOW ProcessSolder DipAmong some types of lead free solder currently ava

14、ilable, it is recommended to use one of the following types for the repairwork. Sn + Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth)Caution:1. As the melting point temperature of the lead free solder is about 30C to 40C (50F to 70F) higher than that of the

15、lead solder, be sureto use a soldering iron suitable to each solder.2. If lead solder must be used, be sure to remove lead free solder from each terminal section of the parts to be replaced and from the areaaround it completely before soldering, or make sure that the lead free solder and lead solder

16、 melt together fully.The P.C.B.s installed in this unit are soldered using the following solder.MAIN P.C.B.Side ASide BLead Free SolderRadioFans.CN 收音机爱 好者资料库YST-SW0123YST-SW012I SPECIFICATIONSType.Advanced Yamaha Active Servo Technology IIOutput Power . 50 W (100 Hz, 5 ohms 10% T.H.D)Input Sensitiv

17、ity.50 mV (50 Hz, 50 W / 5 ohms)Dynamic Power . 100 W, 5 ohmsInput Impedance . 12 k-ohmsFrequency Response .28 Hz to 200 HzDriver . 20cm (7-7/8) Cone WooferMagnetic Shielding TypeInput SectionINPUT . RCA Pin jackOperation SectionPower Switch, Volume Control, LED indicatorPower SupplyU, C models .AC

18、120 V, 60 HzR, T, K, L models .AC 110-120 / 220-240 V, 50 / 60 HzA model .AC 240 V, 50 HzB, G models .AC 230 V, 50 HzPower Consumption . 45 WDimensions (W x H x D) .290 x 290 x 327.5 mm(11-7/16 x 11-7/16 x 12-7/8)Weight .8.5 kg (18 lbs. 11 oz.)FinishSilver color . U, C, R, T, K, A, B, G, L modelsBla

19、ck color.U, C, R, T, A, B, G, L modelsCherry color.R, T, K, A, B, G, L modelsAdvanced YST IIThis subwoofer system employsAdvanced Yamaha Active ServoTechnology II which Yamaha hasdeveloped for reproducing higherquality super-bass sound.This super bass sound adds a morerealistic, theater-in-the-home

20、effectto your stereo system.290 (11-7/16)290 (11-7/16)290 (11-7/16)327.5 (12-7/8)12.5(1/2)25(1) DIMENSIONSUnit: mm (inch)AccessoriesNonskid pad x 4, Subwoofer Cable (5m) x 1*Specifications are subject to change without notice due toproduct improvements.U . U.S.A. modelC . Canadian modelR . General m

21、odelT. Chinese modelK . Korean modelA . Australian modelB . British modelG . European modelL . Singapore modelYST-SW0124YST-SW012I INTERNAL VIEW1246753? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?1234567YST-SW0125YST-SW012T modelI REAR PANELSR modelU, C mo

22、delsK modelPower IndicatorPower IndicatorPower IndicatorPower IndicatorYST-SW0126YST-SW012A modelB, G modelsL modelPower IndicatorPower IndicatorPower IndicatorYST-SW0127YST-SW012I DISASSEMBLY PROCEDURES(Remove parts in the order as numbered.)Disconnect the power cable from the AC outlet.1. Removal

23、of Front Grille Assy*The Front Grille Assy is fixed to the cabinet with dowels at 5locations.As a flatblade screwdriver is used for removal, use specialcare not to cause damage to the Cabinet Assy.a. Using the flatblade screwdriver inserted in the gap betweenthe Front Grille Assy and the Cabinet Ass

24、y (bottom side first),push up the Front Grille Assy. (Fig.1)b. Remove the Front Grille Assy by lifting a metalblade up.(Fig.1)*When installing the Front Grille Assy, apply quick-drying bondor the like to dowels and then fit them into dowel holes forsecure installation. (The Front Grille Assy will co

25、me off easilyif its dowels are fitted into dowel holes without applying quick-drying bond or the like.)2. Removal of Drivera. Remove 4 screws (1) and remove the Driver. (Fig.1)b. Disconnect the connector connected to the terminal of theDriver. (Fig. 1)3. Removal of Rear Panel Assya. Remove 8 screws

26、(2) and remove the Rear Panel Assy.(Fig.1)*Screws (2) are identified with arrow marks ( ).Fig. 1122Rear Panel AssyCabinet AssyFront Grille AssyFlatblade screwdriverMetalbladeDowelDowelDriverConnectorYST-SW0128YST-SW012I BLOCK DIAGRAMVR1VOLUMEIC4A-+IC5AIC5BIC1234-+-L.P.F.6dB/octL.P.F.12dB/octH.P.F.12

27、dB/octDRIVERINPUTPJ1POWERAMPRY1PROTECTIONPOWERSUPPLYD1F1T1POWERSW54822619810+B+B-B-BIC6Q5, 6D4, 5, 22, 23Q17- 20D7, 25R28 0.1+15-15Q9, D2REGULATORQ10, D3A.N.I.CLIMITERFig. 2When Checking the P.C.B.Connect all the connectors removed during disassembly back to the original positions.Spread the Rubber

28、Sheet and Cloth for insulation purpose and place the Rear Panel Assy on the Rubber Sheet and Cloth. (Fig. 2)? ? ? ?YST-SW0129A1234567BCDEFGHIJVOLUME100INPUTMAIN (3) P.C.B.(Side A)Circuit No.U, C, T, R, A, LK, B, GC78XOJ42XOL1XODRIVERAC INMAIN (1) P.C.B.POWERMAIN (5) P.C.B.BEBEBEWHYEYEREREBRBRU, C, A

29、, B, G modelsR, T, K, L modelsMAIN (7) P.C.B.MAIN (10) P.C.B.(Side A)MAIN (9) P.C.B.(Side A)MAIN (2) P.C.B.WHBEBEWHBEWHBEWHU, C, A, B, G modelsR, T, K, L modelsR, T, K, L modelsVOLTAGESELECTOR220V-240V110V-120VREREREREBLREREBLBLWHSP-SP+RERef. no.LocationD1J2D2H4D3I4D4H2D5H2D6G2D7F2D8C3D22G2D23G2 Sem

30、iconductor LocationRef. no.LocationD24J3D25F3D28I3D29I3IC1H2IC4B3IC5B2IC6G3Q1F3Q2F3Ref. no.LocationQ5G3Q6G3Q9H4Q10I4Q17F3Q18F3Q19F3Q20F3191911910-V-15+15EMAIN-V-15+15EMAINPOWERINDICATOR(Side A)(Side A)(Side A)(Side A)ON OFFI PRINTED CIRCUIT BOARD Lead Free Solder Used2ABCDEFGHIJ13457YST-SW012610I SC

31、HEMATIC DIAGRAM# All voltages are measured with a 10MV DC electronic volt meter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed.# Schematic diagram is subject to change without notice.IC1: STK404-070 6

32、0WAF Power Amp13245678910R1R4R5C1C2D1TR3TR5R3R6TR4SUBR2TR1TR2TR6TR7TR8110STK404-070 60W19PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.2SB16422SD25311SR139,4001SS133,176MTZJ15CMTZJ24BMTZJ5.6B2SA9702SC22402SC2878PC4570HA-AAnodeCathodeECBBCERBV-402IC46: PC4570HA-ADual OP-AmpVccVo1-Vm1+Vm1VEE+V

33、m2-Vm2Vo2Vcc123456789+-12+-35.2AC 52.00.20.20.20.20.20000000.20.235.035.035.1-8.1000014.5-14.50000015.029.429.4-30.735.014.5-15.1-14.5-29.5-29.60023.61.30.1-8.01.31.31.300.70.70.8000.20.20.2-34.9-35.235.1001.1-1.11.714.5000-1.9014.514.5-14.6-14.6000000000L.P.F.L.P.F.DRIVERR, T, K, L modelsMAIN (1)MA

34、IN (3)MAIN (10)MAIN (7)MAIN (5)MAIN (2)MAIN (9)VOLUMEH.P.F.POWER AMPA.N.I.CLIMITERPROTECTIONPOWERSUPPLYREGULATORPOWERINPUTU, C, A, B, G modelsYST-SW01211YST-SW012ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS:PARTS LISTI ELECTRICAL PARTSC.A.EL.CHP: CHIP ALUMI.ELECTROLYTIC CAPC.CE: CERAMIC CAPC.CE.ARRAY :

35、 CERAMIC CAP ARRAYC.CE.CHP: CHIP CERAMIC CAPC.CE.ML: MULTILAYER CERAMIC CAPC.CE.M.CHP: CHIP MULTILAYER CERAMIC CAPC.CE.SAFTY: RECOGNIZED CERAMIC CAPC.CE.TUBLR: CERAMIC TUBULAR CAPC.CE.SMI: SEMI CONDUCTIVE CERAMIC CAPC.EL: ELECTROLYTIC CAPC.MICA: MICA CAPC.ML.FLM: MULTILAYER FILM CAPC.MP: METALLIZED

36、PAPER CAPC.MYLAR: MYLAR FILM CAPC.MYLAR.ML : MULTILAYER MYLAR FILM CAPC.PAPER: PAPER CAPACITORC.PLS: POLYSTYRENE FILM CAPC.POL: POLYESTER FILM CAPC.POLY: POLYETHYLENE FILM CAPC.PP: POLYPROPYLENE FILM CAPC.TNTL: TANTALUM CAPC.TNTL.CHP: CHIP TANTALUM CAPC.TRIM: TRIMMER CAPCN: CONNECTORCN.BS.PIN: CONNE

37、CTOR,BASE PINCN.CANNON: CONNECTOR,CANNONCN.DIN: CONNECTOR,DINCN.FLAT: CONNECTOR,FLAT CABLECN.POST: CONNECTOR,BASE POSTCOIL.MX.AM: COIL,AM MIXCOIL.AT.FM: COIL,FM ANTENNACOIL.DT.FM: COIL,FM DETECTCOIL.MX.FM: COIL,FM MIXCOIL,OUTPT: OUTPUT COILDIOD.ARRAY : DIODE ARRAYDIODE.BRG: DIODE BRIDGEDIODE.CHP: CH

38、IP DIODEDIODE.VAR: VARACTOR DIODEDIOD.Z.CHP: CHIP ZENER DIODEDIODE.ZENR : ZENER DIODEDSCR.CE: CERAMIC DISCRIMINATORFER.BEAD: FERRITE BEADSFER.CORE: FERRITE COREFET.CHP: CHIP FETFL.DSPLY: FLUORESCENT DISPLAYFLTR.CE: CERAMIC FILTERFLTR.COMB: COMB FILTER MODULEFLTR.LC.RF: LC FILTER,EMIGND.MTL: GROUND P

39、LATEGND.TERM: GROUND TERMINALHOLDER.FUS : FUSE HOLDERIC.PRTCT: IC PROTECTORJUMPER.CN: JUMPER CONNECTORJUMPER.TST : JUMPER,TEST POINTL.DTCT: LIGHT DETECTING MODULEL.EMIT: LIGHT EMITTING MODULELED.DSPLY: LED DISPLAYLED.INFRD: LED,INFRAREDMODUL.RF: MODULATOR,RFPHOT.CPL: PHOTO COUPLERPHOT.INTR: PHOTO IN

40、TERRUPTERPHOT.RFLCT : PHOTO REFLECTORPIN.TEST: PIN,TEST POINTPLST.RIVET: PLASTIC RIVETR.ARRAY: RESISTOR ARRAYR.CAR.: CARBON RESISTORR.CAR.CHP: CHIP RESISTORR.CAR.FP: FLAME PROOF CARBON RESISTORR.FUS: FUSABLE RESISTORR.MTL.CHP: CHIP METAL FILM RESISTORR.MTL.FLM: METAL FILM RESISTORR.MTL.OXD: METAL OX

41、IDE FILM RESISTORR.MTL.PLAT: METAL PLATE RESISTORRSNR.CE: CERAMIC RESONATORRSNR.CRYS: CRYSTAL RESONATORR.TW.CEM: TWIN CEMENT FIXED RESISTORR.CEMENT: CEMENT RESISTORSCR.BND.HD : BIND HEAD B-TITE SCREWSCR.BW.HD: BW HEAD TAPPING SCREWSCR.CUP: CUP TITE SCREWSCR.TERM: SCREW TERMINALSCR.TR: SCREW,TRANSIST

42、ORSUPRT.PCB: SUPPORT,P.C.B.SURG.PRTCT : SURGE PROTECTORSW.TACT: TACT SWITCHSW.LEAF: LEAF SWITCHSW.LEVER: LEVER SWITCHSW.MICRO: MICRO SWITCHSW.PUSH: PUSH SWITCHSW.RT.ENC: ROTARY ENCODERSW.RT.MTR: ROTARY SWITCH WITH MOTORSW.RT: ROTARY SWITCHSW.SLIDE: SLIDE SWITCHTERM.SP: SPEAKER TERMINALTERM.WRAP : WR

43、APPING TERMINALTHRMST.CHP : CHIP THERMISTORTR.CHP: CHIP TRANSISTORTR.DGT: DIGITAL TRANSISTORTR.DGT.CHP : CHIP DIGITAL TRANSISTORTRANS: TRANSFORMERTRANS.PULS : PULSE TRANSFORMERTRANS.PWR: POWER TRANSFORMER ASSYTUNER.AM: TUNER PACK,AMTUNER.FM: TUNER PACK,FMTUNER.PK: FRONT-ENDTUNER PACKVR: ROTARY POTEN

44、TIOMETERVR.MTR: POTENTIOMETER WITH MOTORVR.SW: POTENTIOMETER WITH ROTARY SWVR.SLIDE: SLIDE POTENTIOMETERVR.TRIM: TRIMMER POTENTIOMETERI WARNINGGComponents having special characteristics are marked s and must be replaced with parts having specifications equal tothose originally installed.YST-SW01212Y

45、ST-SW012 New Parts New Parts*WG587200P.C.B.UC*WG587300P.C.B.RTL*WG587400P.C.B.K*WG587500P.C.B.A*WG587600P.C.B.BGCB3VB390100CN.BS.PIN5Ps CB4VG879900CN.BS.PIN2Ps CB5-6WC050700CLIP.FUSEEYF-52BCYRTKLs CB7-8WC050700CLIP.FUSEEYF-52BCYCB9-10VT658100TERM.WRAP352-TX119C1VE326000C.MYLAR0.1uF 50VC2VE327100C.MY

46、LAR0.82uF 50VC4UR867100C.EL10uF 50VC5UA654220C.MYLAR0.022uF 50V JC6UR867100C.EL10uF 50VC7UA655330C.MYLAR0.33uF 50V JC8UA655120C.MYLAR0.12uF 50V JC9UA654100C.MYLAR0.01uF 50V JC10-11UR867100C.EL10uF 50VC12UR867470C.EL47uF 50VC13VE326000C.MYLAR0.1uF 50VC14UR868100C.EL100uF 50VC15UR838100C.EL100uF 16VC1

47、6UR867100C.EL10uF 50VC17UA655180C.MYLAR0.18uF 50V JC18UA654330C.MYLAR0.033uF 50V JC19FG652100C.CE100pF 50VC21UA653330C.MYLAR3300pF 50V JC25-26VT898000C.MYLAR0.1uF 100VC27UA655180C.MYLAR0.18uF 50V JC28UR867100C.EL10uF 50VC29UR867220C.EL22uF 50VC30-32UR867220C.EL22uF 50VC37UA655470C.MYLAR0.47uF 50V JC

48、38UA653680C.MYLAR6800pF 50V Js C55WB121400C.CE.SAFTY0.01uF 295VC57UR868100C.EL100uF 50VC58-59V6476700C.EL4700uF 50VC72UR867100C.EL10uF 50VC74-75UA654150C.MYLAR0.015uF 50V JC76UR838100C.EL100uF 16VC77UR867220C.EL22uF 50VC78FG652220C.CE220pF 50VKBGC79FG652100C.CE100pF 50VC81FG644100C.CE0.01uF 50Vs D1V

49、C971500DIODE.BRGRBV-402 4A 200Vs D2VG440900DIODE.ZENRMTZJ15C 15Vs D3VG440900DIODE.ZENRMTZJ15C 15VP.C.B. MAINP.C.B. MAIND4VD631600DIODE1SS133,176D5VD631600DIODE1SS133,176D6VD631600DIODE1SS133,176D7VG442500DIODE.ZENRMTZJ24B 24V*D8WG613900LED333GD/T5 GREEND22-23VD631600DIODE1SS133,176D24VU264100DIODE1S

50、R139,400D25VD631600DIODE1SS133,176s D28-29VG437700DIODE.ZENRMTZJ5.6B 5.6Vs F1WC804600FUSE1.6A 125VUCRTKLs F1VV335000FUSE0.4A 250VABGs F2VV335000FUSE0.4A 250VRTKLG1V5995800PLATE.GNDs IC1X3587A00ICSTK404-070 60WIC4-6XB247A00ICuPC4570HA-APJ1WC871000JACK.PIN1P MSP-241V-01NIPN1WB213200PINL=70 WB21320Q1iC