Yamaha-YSTSW105-sub-sm 维修电路原理图.pdf

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1、YST-SW105SERVICE MANUALSUBWOOFER SYSTEMYST-SW105100766I CONTENTSTO SERVICE PERSONNEL . 1SPECIFICATIONS. 1INTERNAL VIEW . 2REAR PANELS . 2DISASSEMBLY PROCEDURES . 3CONFIRMATION OF AUTO STANDBY OPERATION .4BLOCK DIAGRAM. 4PRINTED CIRCUIT BOARD . 57SCHEMATIC DIAGRAM . 8PARTS LIST. 915IMPORTANT NOTICETh

2、is 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, are already known andunderstood by the users, and have therefore not been restated.WARNI

3、NG: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. Forthese reasons, we advise all YAMAHA product ownersthat any service required should be per

4、formed 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 orrecognition of any applicable technical capabilities, orestablish a principle-agent relationship

5、 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 products.Modifications are, therefore, inevitable and specifications are subject tocha

6、nge 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 electricity your body may haveaccumulated by grounding yourself to the ground buss int

7、he 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-SW105P.O.Box 1, Hamamatsu, JapanRadioFans.CN 收音机爱 好者资料库YST-SW105235 (9-5/16)260 (10-1/4)20(3/4)32(1-1/4)312 (12-1/4)365 (1

8、4-7/20)Unit : mm (inch)1WALLOUTLETEQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLEWARNING: 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 tr

9、aces 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 REA-SON WHATSOEVER!Avoid prolonged, unprotected cont

10、act 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 beforehandling food.I TO SERVICE PERSONNEL1. Critical Components InformationC

11、omponents having special characteristics are marked sand must be replaced with parts having specifications 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 prope

12、rly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohm shuntedby 0.15F.GLeakage current must not exceed 0.5mA.GBe sure to test for leakage with the AC plug in both polarities.I SPECIFICATIONSType. Advanced Yamaha Active Servo TechnologyOutput Power .100 W/100 Hz, 5 10% T

13、.H.D.Input Sensitivity (50 Hz, 100 W/5, L+R)INPUT 1 (SP) . 1.4 VINPUT 2 (PJ). 65 mVInput ImpedanceINPUT 1 (SP) .2.2 kINPUT 2 (PJ).12 kFrequency Response . 30 Hz200HzDriver Unit .20 cm (8) conemagnetic shielding type x 1Input SectionINPUT 1.Speaker terminalINPUT 2. RCA pin jackPower SupplyU, C models

14、 . AC120V, 60HzA model . AC240V, 50HzB, G models . AC230V, 50HzR, T models . AC110/120/220/240V, 50/60HzPower Consumption. 80 WStandby Power Consumption . 0.8 WDimensions (W x H x D) . 235 x 365 x 312 mm(9-5/16 x 14-7/20 x 12-1/4)Weight . 9.5 kg (20 lbs. 15 oz.)FinishAll models .Black color / Cherry

15、 colorAccessory.Nonskid Pad x 4U . U.S.A. modelC . Canada modelG. Europe modelB . British modelA . Australia modelR . General modelT . China model Specifications are subject to change without notice dueto product improvements. DIMENSIONSRadioFans.CN 收音机爱 好者资料库YST-SW10512345Right side internal viewI

16、INTERNAL VIEW1 MAIN P. C. B. (4)2 MAIN P. C. B. (3)3 MAIN P. C. B. (1)4 MAIN P. C. B. (2)5 Power TransformerI REAR PANELSU, C modelsR modelA modelB, G modelT model2YST-SW105Extension flexible flat cableFig. 43333CB3CB9Apply rapid cures bondFig. 6Apply rapid cures bondFig. 522Front Panel AssyMain P.C

17、.B. (4)Fig. 31Fig. 2Fig. 13I DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.)G For exchanging the driver unit1. Removal of Front GrilleThe front grille is fixed to the cabinet with dowels at 4 locations.As a screwdriver (for slotted head screw) is used for removal, usespecial care not

18、 to cause damage to the cabinet.a. Apply the block to the rear panel so as to avoid damage to theTerminal of the rear panel.b. Use the screwdriver inserted in the gap between the front grilleand the cabinet (bottom side first), push up the front grille. (Fig. 1)c. Remove the front grille by lifting

19、it up. (Fig. 1)2. Removal of Driver unita. Remove 4 screws (1) in Fig. 2, and remove the Driver unit.b. Remove the cable cord.G For repairing P.C.B.Repairing P.C.B. is possible without removing front grille.1. Removal of Front Panel AssyRemove 2 screws (2) and then remove the Front Panel Assy inFig.

20、 3.*Use an Allen wrench (3 mm) to unscrew the Front Panel Assy.2. Removal of Rear PanelRemove 12 screws (3) in Fig. 4, and remove the rear panel. Atthis time, disconnect the connector CB3 of MAIN P.C.B. (1).*When removing the rear panel, replace the packing.3. P.C.B. Operation Checka. Disconnect the

21、 connector CB9 of MAIN P.C.B. (4).b. Connect the connector CB3 of MAIN P.C.B. (1) and CB9 of MAINP.C.B. (4) by using an extension flexible flat cable. (Fig. 4)Extension flexible flat cable : V7113100 (9P, 450 mm)G Installation of power switchRapid cures bond (such as 5 minutes epoxy) is required to

22、fix thepower switch.As shown in Fig. 5, apply rapid cures bond (such as 5 minutesepoxy) to the power switch (the area which contacts the rearpanel), insert it in the rear panel and make sure it is fixed.(Inserting the power switch in the rear panel only would not besufficient for its secure installa

23、tion.)G Precaution for installation of power cordAfter connecting the power cord, be sure to apply the rapid curesbond (such as 5 minutes epoxy) to the cord stopper as shown inFig. 6.Glue ListPlaceNameCord stopper5 minutes epoxy or 2051 (Revertex FinewatersSDN.BHD.) or VYLOK 917DH (National Starch &

24、Chemical (M) SDM.BHD.)Power switch5 minutes epoxy or Diabond 1620BYST-SW105LIMITERMUSICBASSSW4MOVIEIC3REGULATORPOWER SUPPLYD2SUBPOWER SUPPLYD11Q11T1D17D18Q15D9STANDBY/ONSW1+15+B-15-BQ9Q10RY2F1PROTECTION0.1SPEAKERRY1D62IC2243IC7BIC7AL.P.F12dB/octHIGHCUTVR2867VR3VOLUMEL.P.F6dB/oct765IC1BIC1A123MUSICSE

25、NSORIC4TIMERIC5+84673AUTOSTANDBYSW2OFFAUTO POWER ON/OFF CIRCUITQ5, 6, 7, 8Q16, 18D4,D5+-+-+-+-+-+-+LRLRLRINPUT 1OUTPUTINPUT 2Q12R60C46POWERAMP4H.P.F12dB/octHLIC12REGULATORQ13, 14D15R, T ONLYREGULATORPOWERSW5A.N.I.CIC6, 8Q20L.P.F6dB/oct314+C18+C17+15I BLOCK DIAGRAM4I CONFIRMATION OF AUTO STANDBY OPER

26、ATIONSetting1) Turn off the power switch.2) In order to shorten the time required for operationcheck; connect a 10k resistor at both ends of R60 onthe MAIN P.C.B. (2).3) Connect the output signal from the signal generator tothe INPUT 2 of the unit.4) Set the signal generator for the sine wave of 100

27、Hz,8mV.5) Turn on the power switch.Confirmation1) Set the AUTO STANDBY switch to the LOW position.AUTOSTANDBYOFFHIGHLOW2) Turn on the STANDBY/ON switch.The display LED lights up (green) and its color changesto red after 5 to 10 seconds.3) Turn off the STANDBY/ON switch.The display LED goes off.4) Se

28、t the AUTO STANDBY switch to the HIGH position.AUTOSTANDBYOFFHIGHLOW5) Turn on the STANDBY/ON switch.The display LED lights up (green) and its color remainsunchanged even after time have elapsed.6) Turn off the STANDBY/ON switch.The display LED goes off.After confirmation1) Turn off the power switch

29、.2) Disconnect the 10k resistor connected to both ends ofR60.YST-SW105ABCDE1234567POWERSW5To MAIN (2)MAIN P. C. B. (5)GYOR19STANDBY / ONB.A.S.S.HIGH CUTVOLUMEFrom MAIN (1)MAIN P. C. B. (4)TOVLEMAINBASS+V2+15-15PWSVCC19118915From MAIN (6)From MAIN (2)From MAIN (3)To MAIN (4)SPEAKERMAIN P. C. B. (1)RE

30、REVCCEPWS+V1VCCPWS-15+15+V2BASSMAINETOVLBL-15+15+15TOVLEESP+SP-+5I PRINTED CIUCUIT BOARD (Foil side)YST-SW105ABCDE123456718From MAIN (2)To MAIN (1)MAIN P. C. B. (3)AUTOSTANDBYLOWHIGHOFFINPUT 2OUTPUT / INPUT 1+EETOVL+15+15-15SWLSWH2SWH1SOE1189From MAIN (5)From MAIN (7) (R, T models)From MAIN (8) (J,

31、U, C, A, B, G models)From MAIN (3)To MAIN (1)MAIN P. C. B. (2)SWLSWH2SWH1SOE+V1PWSEVCCWHBEORGYR601M6I PRINTED CIUCUIT BOARD (Foil side)YST-SW105ABCDE1234567(R, T models)To MAIN (7)MAIN P. C. B. (9)VOLTAGE SELECTORYEBEGRREBRBLTo MAIN (1)POWER TRANSFORMER(J, U, C, A, B, G models)From MAIN (2)MAIN P. C

32、. B. (8)MAIN P. C. B. (6)REWHBEREBLTo MAIN (1)POWER TRANSFORMERFrom MAIN (9)MAIN P. C. B. (7)MAIN P. C. B. (6)REWHREBLYEBRGRBEBEREBL(R, T models)7I PRINTED CIUCUIT BOARD (Foil side)A123456789BCDEFGHIJKLYST-SW105H ? All voltage are measured with a 10M? /V DC electric volt meter.H ? Components having

33、special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed.H ? Schematic diagram is subject to change without notice. 電圧、内部抵抗1 0 M電圧計測定。 s印部品、安全性確保部品示。部品交換必要場合、記載部品使用。 本回路図標準回路図。改良予告変更。8SCHEMATIC DIAGRAMIC12 : NJM78L08AVoltage Regul

34、atorIC2 : TDA7293V100W DMOS Audio Amp.IC5 : M51848LProtectIC3 : PC1237HAProtectIC4, 6, 7, 8 : PC4570HAOP Amp.IC1 : NJM4558LOP Amp.BCEBCEPIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.2SD25312SB16422SK3042SC4688D3SBA20S1NB202SC18152SA10152SC22402SA9702SC2878ECB+1SS133MTZ15CMTZJ24BMTZJ12CPC4570

35、HAAnodeCathode19M51848LPC1237HANJM78L08ATDA7293V18NJM4558L18OUTCOMINSGD115V c c V o1- V m1+ V m1VE E+ V m2- V m2V o2V c c123456789+-12VINVOUTGND12348+657OUT1IN1+IN1Vcc+IN2IN2OUT2+Vcc234109186571113141215OUT+PWVsBUFFER DRV+Vs-VsSTBY-GND-PWVsBOOTLOADERBOOTSTRAPCLIP DETIN-IN+SGNDMUTESTBYMUTESTBYTHERMAL

36、SHUTDOWNS/CPROTECTION00000000-14.7-14.4-42.00000000000000000-14.40.714.814.814.714.1045.641.814.825.30.86.66.66.100000007.900.20.25.65.611.911.811.80.71.43.93.96.76.87.9001.46.67.97.95.34.74.75.00-0.3-0.3000000000000000.17.37.90.10.61.900000-14.214.5000011.312.6-45.716.145.645.60.4-45.700-1.814.714.

37、714.011.4-14.3-14.33.32.20.802.00006.015.2-45.8AC68.1-14.4014.7AC11.9YST-SW1059I WARNINGComponents having special characteristics are marked s and must bereplaced with parts having specifications equal to those originally in-stalled.GCarbon resistors (1/6W or 1/4W) are not included in the ELECTRICAL

38、PARTS List. For the parts No. of the carbon resistors, refer to last page.ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS:C.A.EL.CHP: CHIP ALUMI.ELECTROLYTIC CAPC.CE: CERAMIC CAPC.CE.ARRAY : CERAMIC CAP ARRAYC.CE.CHP: CHIP CERAMIC CAPC.CE.ML: MULTILAYER CERAMIC CAPC.CE.M.CHP: CHIP MULTILAYER CERAMIC CAPC.

39、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 PAPER CAPC.MYLAR: MYLAR FILM CAPC.MYLAR.ML : MULTILAYER MYLAR FILM CAPC.PAPER: PAPER CAPACITORC.PLS: POLYSTYRENE FIL

40、M 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: CONNECTOR,BASE PINCN.CANNON: CONNECTOR,CANNONCN.DIN: CONNECTOR,DINCN.FLAT: CONNECTOR,FLAT CABLECN.POST: CONNECTOR,BASE PO

41、STCOIL.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: CHIP DIODEDIODE.VAR: VARACTOR DIODEDIOD.Z.CHP: CHIP ZENER DIODEDIODE.ZENR : ZENER DIODEDSCR.CE: CERAMIC DISCRIMINATORF

42、ER.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 PLATEGND.TERM: GROUND TERMINALHOLDER.FUS : FUSE HOLDERIC.PRTCT: IC PROTECTORJUMPER.CN: JUMPER CONNECTORJUMPER.TST : J

43、UMPER,TEST POINTL.DTCT: LIGHT DETECTING MODULEL.EMIT: LIGHT EMITTING MODULELED.DSPLY: LED DISPLAYLED.INFRD: LED,INFRAREDMODUL.RF: MODULATOR,RFPHOT.CPL: PHOTO COUPLERPHOT.INTR: PHOTO INTERRUPTERPHOT.RFLCT : PHOTO REFLECTORPIN.TEST: PIN,TEST POINTPLST.RIVET: PLASTIC RIVETR.ARRAY: RESISTOR ARRAYR.CAR.:

44、 CARBON RESISTORR.CAR.CHP: CHIPRESISTORR.CAR.FP: FLAME PROOF CARBON RESISTORR.FUS: FUSABLE RESISTORR.MTL.CHP: CHIP METAL FILM RESISTORR.MTL.FLM: METAL FILM RESISTORR.MTL.OXD: METAL OXIDE FILM RESISTORR.MTL.PLAT: METAL PLATE RESISTORRSNR.CE: CERAMIC RESONATORRSNR.CRYS: CRYSTAL RESONATORR.TW.CEM: TWIN

45、 CEMENT FIXED RESISTORR.WW: WIRE WOUND RESISTORSCR.BND.HD : BIND HEAD B-TITE SCREWSCR.BW.HD: BW HEAD TAPPING SCREWSCR.CUP: CUP TITE SCREWSCR.TERM: SCREW TERMINALSCR.TR: SCREW,TRANSISTORSUPRT.PCB: SUPPORT,P.C.B.SURG.PRTCT : SURGE PROTECTORSW.TACT: TACT SWITCHSW.LEAF: LEAF SWITCHSW.LEVER: LEVER SWITCH

46、SW.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 : WRAPPING TERMINALTHRMST.CHP : CHIP THERMISTORTR.CHP: CHIP TRANSISTORTR.DGT: DIGITAL TRANSISTORTR.DGT.CHP : CHIP DIGITAL

47、 TRANSISTORTRANS: TRANSFORMERTRANS.PULS : PULSE TRANSFORMERTRANS.PWR: POWER TRANSFORMER ASSYTUNER.AM: TUNER PACK,AMTUNER.FM: TUNER PACK,FMTUNER.PK: FRONT-ENDTUNER PACKVR: ROTARY POTENTIOMETERVR.MTR: POTENTIOMETER WITH MOTORVR.SW: POTENTIOMETER WITH ROTARY SWVR.SLIDE: SLIDE POTENTIOMETERVR.TRIM: TRIM

48、MER POTENTIOMETERNote) Those parts marked with “#” are not included in the P.C.B. assy.PARTS LISTI ELECTRICAL PARTSYST-SW10510*V7097000P.C.B.MAINUC*V7097100P.C.B.MAINRT*V7097200P.C.B.MAINA*V7097300P.C.B.MAINBGCB1VB390200CN.BS.PIN6PCB2VB390000CN.BS.PIN4PCB3VB390500CN.BS.PIN9PCB4VB858400CN.BS.PIN5PCB5

49、VP206500HOLDER.FUSEYF-52BCTRTCB6VP206500HOLDER.FUSEYF-52BCTRTCB7VP206500HOLDER.FUSEYF-52BCTUCRTCB8VP206500HOLDER.FUSEYF-52BCTUCRTCB9VB390500CN.BS.PIN9PCB10LB932020CN.BS.PIN2PCB13VP206500HOLDER.FUSEYF-52BCTABGCB14VP206500HOLDER.FUSEYF-52BCTABGC1UA654470C.MYLAR0.047uF 50VC2FG612220C.CE220pF 50VC3UR857

50、100C.EL10uF 35VC4FG612220C.CE220pF 50VC5UA654220C.MYLAR0.022uF 50VC6UR837100C.EL10uF 16VC7UR837470C.EL47uF 16VC8UR857100C.EL10uF 35VC9UA653100C.MYLAR1000pF 50VC10UR867100C.EL10uF 50VC11UR867100C.EL10uF 50VC12UR867220C.EL22uF 50VC13UA655100C.MYLAR0.1uF 50VC14FG652100C.CE100pF 50VC15UR838100C.EL100uF