Yorkville-AM50-pwr-sm 维修电路原理图.pdf

U.S.A.Yorkville Sound Inc.4625 Witmer Industrial EstateNiagara Falls, New York14305 USAVoice: (716) 297-2920Fax: (716) 297-3689WORLD HEADQUARTERSWEB ACCESS: http:/CANADAYorkville Sound550 Granite CourtPickering, OntarioL1W-3Y8 CANADAVoice: (905) 837-8481Fax: (905) 837-8746Quality and Innovation Since 1963Printed in CanadaSERVICE MANUALA AC CO OU USTISTIC MASTEC MASTER RACOUSTIC MASTERRadioFans.CN 收音机爱 好者资料库Manual-Service-am50-1v1.pdfTYPE: AM50INSTRUCTIONS PERTAINING TO A RISKOF FIRE, ELECTRIC SHOCK,OR INJURY TO PERSONS.CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK, DONOT REMOVE COVER (OR BACK).NO USER SERVICEABLE PARTS INSIDE.REFER SERVICING TO QUALIFIEDSERVICE PERSONNEL.Read Instructions:The Owners Manual should be read and understoodbefore operation of your unit. Please, save theseinstructions for future reference.Packaging:Keep the box and packaging materials, in case the unitneeds to be returned for service.Warning:When using electric products, basic precautions shouldalways be followed, including the following:Power Sources:Your unit should be connected to a power source only of thevoltage specified in the owners manual or as marked on the unit.This unit has a polarized plug. Do not use with an extension cord orreceptacle unless the plug can be fully inserted. Precautions shouldbe taken so that the grounding scheme on the unit is not defeated.Hazards:Do not place this product on an unstable cart, stand, tripod, bracket ortable. The product may fall, causing serious personal injury and seriousdamage to the product. Use only with cart, stand, tripod, bracket, or tablerecommended by the manufacturer or sold with the product. Follow themanufacturers instructions when installing the product and use mountingaccessories recommended by the manufacturer.The apparatus should not be exposed to dripping or splashingwater; no objects filled with liquids should be placed on theapparatus.Terminals marked with the “lightning bolt” are hazardous live;the external wiring connected to these terminals require installationby an instructed person or the use of ready made leads or cords.No naked flame sources, such as lighted candles, should beplaced on the apparatus.Power Cord:The AC supply cord should be routed so that it is unlikely that it willbe damaged. If the AC supply cord is damaged DO NOTOPERATE THE UNIT.Service:The unit should be serviced only by qualified service personnel.INSTRUCTIONS RELATIVES AU RISQUEDE FEU, CHOC LECTRIQUE, OUBLESSURES AUX PERSONNES.AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,NENLEVEZ PAS LE COUVERT (OU LE PANNEAUARRIERE). NE CONTIENT AUCUNE PIECE REPARABLEPAR LUTILISATEUR.CONSULTEZ UN TECHNICIEN QUALIFIEPOUR LENTRETIENT.Veuillez lire le manuel:Il contient des informations qui devraient tres comprises avantlopration de votre appareil. Conservez S.V.P. ces instructionspour consultations ultrieuresEmballage:Conservez la boite au cas ou lappareil devait treretourner pour rparation.Warning:Attention: Lors de lutilisation de produits lectrique,assurez-vous dadhrer des prcautions de basesincluant celle qui suivent:Alimentation:Lappareil ne doit tre branch qu une source dalimentationcorrespondant au voltage spcifi dans le manuel ou tel quindiqusur lappareil. Cet appareil est quip dune prise dalimentationpolarise. Ne pas utiliser cet appareil avec un cordon deraccordement moins quil soit possible dinsrer compltement lestrois lames. Des prcautions doivent tres prises afin deviter que lesystme de mise la terre de lappareil ne soit dsengag.Hazard:Ne pas placer cet appareil sur un chariot, un support, un trpied ou unetable instables. Lappareil pourrait tomber et blesser quelquun ou subir desdommages importants. Utiliser seulement un chariot, un support, un trpiedou une table recommands par le fabricant ou vendus avec le produit.Suivre les instructions du fabricant pour installer lappareil et utiliser lesaccessoires recommands par le fabricant.Il convient de ne pas placer sur lappareil de sources de flammesnues, telles que des bougies allumes.Lappeil ne doit pas tre expos des gouttements deau ou desclaboussures et quaucun objet rempli de liquide tel que des vasesne doit tre plac sur lappareil.Les dispositifs marqus dune symbole “dclair” sont des partiesdangereuses au toucher et que les cblages extrieurs connects ces dispositifs de connection extrieure doivent tre effectivs par unoprateur form ou en utilisant des cordons dj prpars.Cordon dalimentation:vitez dendommager le cordon dalimentation. NUTILISEZ PASLAPPAREIL si le cordon dalimentation est endommag.Service:Consultez un technicien qualifi pour lentretien de votre appareil.IMPORTANT SAFETY INSTRUCTIONSSAFE_V4.doc Version 4.0 02/11/99 11:54 AM#Part#DescriptionFunction134501/4 JCK PCB MT HORZ, GOLDJack24417_10K 5B LIN 9MM HORIZONTAL P28Gain 1applicable to serial numbers 001xxxx34420_50K B LIN 9MM HORIZONTAL P28Bass44420_50K B LIN 9MM HORIZONTAL P28Treble54419100K B LIN 12MM HORIZONTAL STP27Freq63660XLR FEML PCB MT HORZJack74418_10K 5C R/A 9MM HORIZONTAL P28Gain 284417_10K 5B LIN 9MM HORIZONTAL P28Reverbknob8641Note: All pots use 8641 Aqua KnobKnob93698SPST ROKR SW QUIK 180 AC PWR BL/BL103421DPDT PUSH SW PCMT MAKE B4 BREAK108649BUTTON KNOB FLAT BLACK11Z282AM50 Grill (special order while unit is in production only)123834HEYCO #1214 STRAIN RELIEF138570CORNER, 2 LEGS NOTCED LIP BLACK148468VELCRO STRAP 3/4X22CM (VELSTRAP)1534818 3/18 SJT AC LINE CORD 250 CLIPS1684599.5 STRAP HANDLE, PLASTIC COVERS178547PLASTIC FOOT BLACK1874178R 30W TWEETER PIEZO TLC 11973318 8R 50WPGM SPEAKER JENSENJA8/801309BLOC-40B/40K/40W/50B XFMR24680.800 AMP SLO-BLO .25X1.25 FUSE3586ACC# 1BB1C1C SHORT REVERB3745DUAL XSISTOR PBL SPRING PLATE ZN3830TO218 PREGREASED MICA 56-78-2AP5105MPSA13 TO92 NPN DARL T&R TA58872200U 50V 20%CAP BLK 18X27MM EL6755LM3876T IC 40 WATT POWER AMP6798MC4741CP IC QUAD OP AMP68271N5402 200V 3A0 DIODE6840MC33078P IC DUAL OP AMP6882TL072CP IC FET DUAL OP AMP6889TLO74CN IC QUAD O/A T.I ONLY8581CUSTOM PBL TRANSISTOR SPACERNotes:Internal Electronic ComponentsLabeled Componentsparts-am50.xls - 10/23/ Amplifiersam50 Oct 20,2000YS No. DescriptionQty.YS No. DescriptionQty.6405 RED 3MM LED 1V7 5MA BRT24770 1/4W 249R 1% T&R RES26408 GRN 3MM LED 1V9 5MA FROSTED14655 1/2W 330R 5% T&R RES86825 1N4148 75V 0A45 DIODE T&R74799 1/4W 562R 1% T&R RES26438 1N4004 400V 1A0 DIODE T&R14981 1/4W 1K 5%MINI T&R RES36827 1N5402 200V 3A0 DIODE44824 1/4W 1K5 5% T&R RES36822 1N4745A 16V0 1W0 ZENER 5% T&R26113 1/4W 2K 5%MINI T&R RES36824 1N5246B 16V0 0W5 ZENER 5% T&R14883 1/4W 2K49 1% T&R RES15105 MPSA13 TO92 NPN DARL T&R TA24827 1/4W 4K7 5% T&R RES56755 LM3876T IC 40 WATT POWER AMP14639 1/4W 4K99 1% T&R RES46798 MC4741CP IC QUAD OP AMP14893 1/4W 5K1 5% T&R RES16840 MC33078P IC DUAL OP AMP14863 1/4W 8K2 5% T&R RES26882 TL072CP IC FET DUAL OP AMP44800 1/4W 10K0 1% T&R RES126889 TLO74CN IC QUAD O/A T.I ONLY24829 1/4W 10K 5% T&R RES95402 _15P 100V 10%CAP T&R BEAD NPO26116 1/4W 10K0 1%MINI MF T&R RES35199 100P 100V 2%CAP T&R RAD CER.2NPO24830 1/4W 15K 5% T&R RES25410 100P 100V 10%CAP T&R BEAD NPO36123 1/4W 20K0 1%MINI MF T&R RES25420 680P 50V 10%CAP T&R BEAD NPO24840 1/4W 33K 5% T&R RES25422 _1N 50V 10%CAP T&R BEAD NPO44834 1/4W 47K 5% T&R RES25208 _2N2 400V 5%CAP T&R RAD .2FLM24803 1/4W 49K9 1% T&R RES16451 _4N7 250V 20%CAP BLK Y 10MM AC14836 1/4W 68K 5% T&R RES15204 _10N 100V 10%CAP T&R RAD .2FLM26120 1/4W 100K 5%MINI T&R RES55207 _18N 100V 5%CAP T&R RAD .2FLM24849 1/4W 180K 5% T&R RES26435 _22N 275V 20%CAP BLK X2 15MM AC14844 1/4W 1M 5% T&R RES15308 _47N 50V 10%CAP T&R BEAD X7R13586 ACC# 1BB1C1C SHORT REVERB15310 _68N 50V 10%CAP T&R BEAD X7R19892 CABINET COVER, BLUE/BLACK, 54 WIDE11.55228 100N 100V 5%CAP T&R RAD .2FLM19047 .187 HOLE .250 STAG 16GA PERFORAT1.45314 100N 50V 10%CAP T&R BEAD X7R159150 .081 48X96 UTILITY ALUMINUM2.135230 180N 63V 5%CAP T&R RAD .2FLM19250 .040 48X96 5052H32 ALUM VINYL LAMI0.335317 180N 50V 10%CAP T&R BEAD X7R19815 1/2PRECISION SANDED SPRUCE 4X88.165231 220N 63V 10%CAP T&R RAD .2FLM28842 #4 X 5/16 PAN QUAD TYPE A JS500 BLK25233 330N 63V 5%CAP T&R RAD .2FLM18801 6-32 X 3/8 PAN PH TAPTITE JS50055234 470N 63V 10%CAP T&R RAD .2FLM18829 6-32 X 3/8 FLAT PH TAPTITE BO#4 HEA45255 _1U 63V 20%CAP T&R RAD .2EL38828 6-32 X 3/4 PAN PH TAPTITE JS50035256 _1U 63V 5%CAP T&R RAD .2FLM28876 #6 X 1 1/2 PAN PH TYPE A JS500 BLK45257 _2U2 63V 20%CAP T&R RAD .2EL18763 8-32 X 1/2 PAN PH MS JS500 BLACK25945 _10U 63V 20%CAP T&R RAD .2EL18767 #8 X 3/4 PAN PHIL TYPE A JS500 BLK45961 _33U 16V 20%CAP T&R RAD .2NP28815 8-32 X 3/4 PAN PH TAPTITE JS50015267 100U 25V 20%CAP T&R RAD .2EL38753 #10 X 1/2 PAN PH TYPE A JS500 BLACK125630 330U 25V 20%CAP BLK 10X13MM EL28756 #10 X 3/4 PAN PH TYPE A BLACK OXIDE85887 2200U 50V 20%CAP BLK 18X27MM EL28781 #10 X 7/8 FLAT PHIL TYPE A JS500BLK104417 _10K 5B LIN 9MM HORIZONTAL P2828912 10-32 X 1 FLAT PHIL MS JS500 BLK44418 _10K 5C R/A 9MM HORIZONTAL P2818770 1/4-20 X 1 5/16 TRUSS PH MS JS50024420 _50K B LIN 9MM HORIZONTAL P2828905 YORKVILLE PRODUCT SCHEMATIC14419 100K B LIN 12MM HORIZONTAL STP2713833 8 X 3/8 (250 OD,.171 ID)NY SPACER38547 PLASTIC FOOT BLACK87331 8 8R 50WPGM SPEAKER JENSENJA8/8018570 CORNER, 2 LEGS NOTCED LIP BLACK68820 #8 FLAT WASHER JS50023463 CLIP 110X020 18-22AWG DISCO/INSL28473 #10 BLACK CUPWASHER SWF-10BK23467 CLIP 205X032 14-16AWG DISC/INSUL23421 DPDT PUSH SW PCMT MAKE B4 BREAK13489 CLIP 250X032 18-22AWG DISCO/INSL43698 SPST ROKR SW QUIK 180 AC PWR BL/BL13682 250 MALE PCB TAB BULK CARTRIGE103937 YELLOW 18 AWG TR-64 PREFUSED2.3333498 1/4 JCK PCB MT HORZ33940 RED 18 AWG TR-64 PREFUSED2.3333886 36 RCA PREFAB CABLE RED13941 BLACK 18 AWG TR-64 PREFUSED4.6673890 36 PREFAB. CABLE13950 GREEN 18 AWG TR-64 PREFUSED23914 RCA SNGL PCB MT HORZ23958 BLACK 18AWG 36STND WIRE DOUBLE INS3.3333417 6-32 SCREW TERMINAL PC MOUNT21309 BLOC-40B/40K/40W/50B XFMR13660 XLR FEML PCB MT HORZ13451 EYELET SMALL 0.089 OD PLATED103414 INTERNATIONAL PC MOUNT FUSEHOLDER22468 0.800 AMP SLO-BLO .25X1.25 FUSE18459 9.5 STRAP HANDLE, PLASTIC COVERS18604 10-32 T NUT27417 8R 30W TWEETER PIEZO TLC 113745 DUAL XSISTOR PBL SPRING PLATE ZN13804 SNAP ON 1.5 INSULATING BUSHING13795 #8 GROUND LUG ZIERICK 505-16923801 5/8 BUMPER BUTTON BLACK13803 NYLON SECUR-A-TACH MINI PLASTIC TIE13810 4 NYLON CABLE TIE58641 AQUA KNOB FOR NEW ACOUSTIC SERIE68649 BUTTON KNOB FLAT BLACK13481 8 3/18 SJT AC LINE CORD 250 CLIPS13834 HEYCO #1214 STRAIN RELIEF1Y LOGO ACOUSTIC SERIES SML. DOMED18800 6-32 KEPS NUT ZINC38787 8-32 KEPS NUT ZINC28845 10-32 PEMNUT SS-032-2-Z128898 1/4-20 CAGE NUT C799814202723830 TO218 PREGREASED MICA 56-78-2AP18581 CUSTOM PBL TRANSISTOR SPACER14597 22AWG STRAN TC WIR JMP74599 22AWG SOLID SC WIR T&R JMP415299 24AWG SOLID SC WIR RAD JMP24675 1/2W 10R 5% T&R RES24816 1/4W 33R 5% T&R RES14704 5.0W 33R 5% BLK RES14897 1/4W 120R 5% T&R RES24857 1/4W 220R 5% T&R RES4RadioFans.CN 收音机爱 好者资料库Block Diagram for AM50AMPInput 1 Gain PotReverb PotEQIn 1BLOCK-DIAGRAM-AM50-1V4 .aiChannel Inputs Low / HighDESIGNED AND MANUFACTURED BY YORKVILLE SOUNDChannel 1 UnbalancedStereo 1/4C:ADATAblock diagramsBLOCK-DIAGRAM-AM50-1V4.ai18-JUL-2003SEXLRBalancedStereo 1/4Input 2 Gain PotIn 2Channel 2BalancedReverb Gain StageNotch FilterNotchOUTINContour FilterChannel 1Clip LEDChannel 2Clip LEDBufferRCAReverb SendRCAReverb ReturnReverb Gain StageTweeter8 Ohms8 OhmsSpeaker Outputs+D261/2TL072U32311/2TL072U12311/233078U22312/233078U26571u16VC19SRTMONONO_GOLDJB2123456RCAREV_RTNJ1012SRTMONONO_GOLDJP3123456100NC411/4MC4741U82312/4MC4741U86574/4MC4741U81312143/4MC4741U891082/2TL072U106571/2TL072U723110KR101100U16VC7100NC40180NC152U216VC18NUTRIXMIC_INJP4132#74153.754R4/4TL074U61312148K2R273/4TL074U69108CWDB100KNOTCHP68K2R2610KR1004n7250V180KR18A10KR20.5W330RR39AS_OFKNOBPART#FUNCTIONREF10987654321#MODEL(S):-DDDD.JAN/2000KKKK.#8641NNNN#4419#4418#4420#4417#4420#4417FFFFNOTCHGAINTREBLEREVERBBASSVOLUMEDDDDP6P5P4P3P2P1AM50M571.PCB_POT_LIST1KR352N2 .C6710KR1547KR471KR484K7R464K7R4510987654321#DESCRIPTION OF CHANGEVER#DATEMODEL(S):-DDDDDDOCT/06/03MAR/22/01MAY/03/00JAN/18/00VVVVVV1.501.401.301.20NNNNNNCORRECT_POLARITY_OF_HORNPC#6358_E_VERSION_XFMR_#1206-1309EUPDATE_CE_PWR-SUPPLYADD_HISTORY/POT_BLOCKSAM50M571.SCH_DATABASE_HISTORY0.5W330RR203470NC62100NC634K99R4910K0R11562RR64K99R34562RR52KR110K0R1915KR8347KR33180KR52P28STYLE1K5R1668KR17MPSA43E B CMPSA56220RR29220RR30220RR3210KR1032/4TL072U365710KR10533RR90100PC31KR700.5W330RR205100NC27D31A13Q10REDLED233KR31100KR65100NC27AD2549K9R710K0R4100NC1512U263VC1211MR31U63VC100220RR2810KR8410K0R1410K0R8210KR852N2C64100KR161NCV_IN+V_IN-MUTEGNDNCNC(+)V-OUTPUTNCV+1110987654321LM3876T10KR1810K0R89120RR531/4TL074U62314K7R254K7R510.5W330RR207D62K49R4110K0R424K75R5010K0R8010K0R1218NC60SW1INOUTNOTCH100NC1523/4TL074U591082/4TL074U56571/4TL074U5231CWDB100KNOTCHP610K0R4410K0R81#732288R40V220NC23A33R5WR24A1KR20A15KR22A18NC6110U63VC17A10KR21AD10ACWTREBLE50KBP4CWBASS50KBP2CWVOLUME210K5CP5100U25VC18A16V1N5246BZD4A100KR55RCAREV_SENDJ1112D60P27STYLE10R0.5WR25A10NC2100NC58100KR40A13Q10A50V1UC22ALM3876U4910371548100NC44680PC16A2KR865KR4347NC21REDLED1100NC50100NC42100NC57D S G2N5638100NC45100NC150100NC4315PC1100PC4CWVOLUME10K5BP115PC121NC11100NC101NC221NC141NC1310K0R8100PC161/2TL072U10231100PC5133U16VC933KR65A10R0.5WR23A68NC68680PC15A1N4004D5A10KR912KR87100KR13A50V1UC21A330U25VC28D26A0.8A-SBF1330R0.5WR2011N5402D4DATE:TITLE:SCH ISSUE:MODELS:PCB#&VER:NAME:YORKVILLESHEET OF1.50AM50_ACOUSTIC_AMPOCT/06/2003M571.SCHAM50M57111100U16VC8249RR631N5402D3REDLED31K5R662200U40VC2522n400VC902200U40VC26120Vac60Hz#1309T116V1N4745AZD310K0R10CWREVERB5B10KP34n7250VC9116V1N4745AZD21N5402D21N5402D1330R0.5WR202180NC230.5W330RR204330U25VC27249RR64100PC56330NC5510NC6633U16VC64K99R614K99R6220K0R5920K0R60SRTLINE-OUTNO_GOLDJB41234562/2TL072U7657BC550CC B EBC560CT400mA22n400V230Vac50Hz#1309E0.5W330RR206120RR9220N.C652/2TL072U16574/4TL074U5131214LGLGLGIGIGIG+35VDC+35VDC-35VDC-35VDCBOGBOGBOGBOGBOGBOGBOGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSGSG-16V-16VAGAGAGAGAG+16V+16V+16V+16VYELREDREDBLK100MVRMS100mvrmsPIN 1CLIPCLIPPOLYPOLYPOLYF1SW1C32T1EXPORTGRN/YELBROWNBLUE WHITEGREEN BLACK PIN OUTSLINE OUTREVERB TANK #3586VOLUMES AT 10, TONES AT 0AC VOLTAGES MEASURED AT 1KHz AND WITHALL UNMARKED DIODES ARE 1N4148NOTES:3mVrms1VrmsCHANNEL 2INPUTINPUTCHANNEL 1BLKVCD-38VDCAG+38VDCM571-5.00SOLDERSIDE M571_5.00AM50DRILL DETL M571_4.00C2825V330UC2725V330UD254148R65A33KR18A33KC6868NC10100NR701K5C12163V1UC4100PC15A680PJ4R504K7R5562RR6562RC141NR344K99R494K99C131NR4747KJ13R22A15KR464K7R454K7ZD216V/1WR514K7U233078C44100NR410K0R52180KR749K9R53120RC933u16VR13A100KR9120RC825V100UR1010K0R21A10KC10063V1UR20A1KTAB9250TABFUNCTIONTAB2250TAB.TAB4250TAB.TAB1250TABFUNCTIONTAB3250TABFUNCTIONTAB10250TABFUNCTIONTAB8250TABFUNCTIONTAB7250TABSEC_INTAB6250TABSEC_INTAB5250TABSEC_GNDR2030.5W330RR390.5W330RJ12R24A5W33RDOWNBARD11N5402DOWNBARD21N5402DOWNBARD31N5402DOWNBARD41N5402J18ZD4A16VR2060.5W330RR661K5R2070.5W330RR2050.5W330RR29220RC55330NC56100PR64249RR63249RR8210K0R8110K0R4410K0R624K99JB10PART#3914.RCA_JACKR614K99U5TLO74R1210K0C152100NRTVF1.#3414AC_LINER6020K0U1TLO72