Yamaha-AV-80-Y-Service-Manual电路原理图.pdf

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1、STEREO AMPLIFIER AV-80Y SERVICE MANUAL r -.:- o = H model only - 0- WI . . .: I- o0- II- I.- - . CONTENTS IMPORTANT NOTICE This manual hasbeenprovided for the useofauthorized YAMAlIA Retailers and theirsenicepersonnel. Ithasbeenassumed that basic service procedures inheranttothe industry, and more s

2、pecifically YAMAHA Products, are already known and understood by the users, and have therefore notbeenrestated. WARNING:Failuretofollow appropriate service and safety procedures when servicing this product may result in personal injury, destructionofexpensive components and failureofthe product to p

3、erform as specified. For these reasons, we adviseallYAMAlIA product owners thatallsezvicerequiredshould be performedbyan authorized YAMAlIA Retailer or the appointed service rqresentative. IMPORTANT:The presentation or saleofthis manualtoany individual or finn does not constitute authorization, cert

4、ification or recognitionofany applicable technical capabilities,or establish a principle-agent relationshipofany form. The data provided is believed tobeaccurate and applicable to the unites) indicated on the cover. The reserch, engineering, and service departmentsofYAMAlIA are continually striving

5、to improve YAMAlIA products. Modifications are, therefore, inevitable and specifications are subjecttochange without noticeorobligatim to retrofit. Should any discrepancy appear to exist, please contactthedistributors Service Division. WARNING:Static discharges can destroy expensive components. Disc

6、harge any static electricity your body may have accumulatedbygrounding yourselftothe ground buss in the unit (heavy gauge blackwiresconnecttothis buss). IMPORTANT:Tumthe unit OFF during disassembly and parts replacement. Recheck all wolk before you apply powertothe unit. TO SERVICE PERSONNEL1 REAR P

7、ANELS1-2 SPECiFiCATIONS.3 BLOCK DIAGRAM .4-5 INTERNAL VIEW .6 DISASSEMBLY PROCEDURES6-7 ADJUSTMENTS .7 11003801 PRINTED CIRCUIT BOARD8-14 INTERCONNECT WIRING DIAGRAM15 COMDATA16 WAVEFORMOFTEST POINT17 SCHEMATIC DIAGRAM18-19 PARTS LIST .20-27 REMOTE CONTROL TRANSMITTER28 YAMAHA YAMAHACORPORATION Po.B

8、ox1,Hamamatsu,Japan 1.4k-34613PrintedinJapan.91.2 RadioFans.CN 收音机爱好者资料库 AV-80Y TOSERVICEPERSONNEL 1.Critical Components Information. Components having special characteristics are marked and must be replaced with parts having specifications equalto those originally installed. 2.Leakage Current Meas

9、urement (For 120V Model Only). When service has been completed, itisimperative thatyou verify that all exposed conductive surfacesareproperly insu- latedfromsupply circuits. Meter impedance shouldbeequivalentto1S00ohmshunted by0.1SJlF. Leakage current must not exceedO.SmA. Besure to test for leakage

10、 with theACpluginboth polarities. ACLEAKAGE WALLEQUIPMENTTESTEROR OUTLETUNDER TESTEQUIVALENT 1II INSULATING TABLE POLARIZATION (U, C models only) This amplifier productisequipped with a polarized alternat- ing-current line plug(aplughaving one blade wider than the other). Thisplugwill fit into the p

11、ower outlet only one way. ThisISa safety feature. 1 WARNING:CHEMICALCONTENTNOTICEI 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 Healt

12、h and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DONOT PLACE SOLDER,ELECTRICAL/ELECTRONICORPLASTIC COMPONENTSINYOUR MOUTH FOR ANY REASON WHATSOEVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, d

13、o not inhale sol- der fumes or expose eyes to solder/flux vapor! Ifyou comeincontact with solder or components located inside the enclosure of this product, wash your hands before handling food. REARPANELS .U model ,.-_-CO-_-LD-_w.NlLt. ooo =-=-=- .-., ril U .C model -.,.,. -_-CO-_-_-LD-w.N .J z o u

14、 UJ o UJ 0: 4 AV-80Y YST SELECTOR SW201 MAIN H.P.AMP LOUDNESSBALANCEVOL.IC201AIC202APOWERAMPRY201 YST EO CIRCUIT IC221AL R R -+5 EOUNIT IC20aA MOTORa CONTROL ICIO LEVEL . ICaMETER IC9 KI-K4 INPUTSELECTOR 01,03.;.:.=.;=-_.IPOWER SW SW2-8 R +A 1.-. PHONES POWERSWITCH DRIVE 0246 MOTOR CONTROL SYSTEM IC

15、a CONTROLLER IC10 MUTE T201 SUB II POWER +12 SUPPLY 0210 POWERSUPPLY J I-PLDREMOTE CONTROL VOLUME -FROM:JlCOM( 1 ) 11 ABcD PRINTEDCIRCUITBOARD(Foilside) 1 Note)xiIfi:Componentside MAIN C. B(2) U,C models ACOUTLETS _.-FROM:ACCORD 2 =a o :i. a t- 021000. T201 3 TO:POWERTRNSFORMER4- MAIN C. B(2) A,H mo

16、dels 4 ,-FROM:ACCORD TO:ACOUTLET(AONLY)-or-. TO:MAIN(7)(HONLY)- 9 5 . - : J: m :E yE a 0 :i. a 021ACI t- CD . AC2 T201 RE(AI BE(H) TO:POWERTRNSFORMER 12 6 DE MAINC.B(2) R model ACOUTLETS FG -FROM:ACCORD AV-80V MAIN C. B(6) R model H :ORD .,. = o o =i o t- TO:POWERTRNSFORMER:I=_ MAINC.B(7) H model AC

17、OUTLETS VOLTAGE SELECTOR 12 FROM:MAIN( 2)-.- 13 / A AV.80V BcDE 1PRINTEDCIRCUITBOARD(Foilside) 2 3 4 5 Note)*iii:Componentside -COMC.B ( 7 ) H model .LFROM:J.l-COM( 1) 1FI STANDBY -COMC.B ( 2 ) MAIN C. B (8)I FROM:MAIN( 1) RY TR L G R +15 PHONES EQ.UNIT (SLIDE POTENTIOMETER BLOCK) -COMC.B ( 8 ) 6 TO

18、:COM(9) 7 POWER 14 INTERCONNECTWIRINGDIAGRAM IMAINC. B11)I -.! I-CONc.813)I I-CONC.B(91I TR20 rl L_.: (U.C.A.H) -=-_-;_.,-,PIlE ( R ) .i-=-+-: G MAIN C.8(21 15 7 AV-80Y .IeDATA IC10 :lC6505C-4277 4bitIl-COM PAO-564.4BIT PC RAM STACKI 1024.11BIT ROM PA2PAl STACK2 PA3PAO P80-5 STACK3 PBOvool+5VI STACK

19、4 PBI (NT PB2HOLD PCO-5 PB3PII PCooPlo PCIPH3PDO-3 PC2PH2 PC3PHI PDoPHO PEO-3 POIPG3 PD2PG2 PD3PGI PFO-5 PEOPGo OINT PEl PF3 OSCI PE2PF2oscOSC2 PE3PF I RESPFO HOLD -RES TESTOSC2-0TEST IOVIVSSOSCI PHo-3P10-5 -01100 PGO-3 -oIlSS Pin No.NameI/O FunctionPin No.NameI/OFunction 1PA2INot used 24PFO0PHONO 2

20、PA3I H level (TAPE MON)25PF10CD 3PBOI K1 26PF20TUNERFunction control 4PB1IK2 27PF30VDPJ(H:ON,L : OFF) 5PB2I K3Key input(H: ON) 28PGO0TAPE .6PB3IK429PG10VCR 7PCOI/O 01 30PG20Not used 8PC1I/OD2Key scan signal(H: Active)31 PG30Power control signal(H: ON) 9PC2I/OD332 PHO0VolumeUpcontrol signal 10PC3I/OP

21、LO PHONO PLAY/CUT Control signal33PH10Volume Down control signal 11PDOI/ONot used34PH20 TU2. 12PD1I/O COO 35PH30 TU1Tuner control signal (Not used) 13PD2I/OCD1CDcontrol signal (Not used)AMUTE Audio Muting control signal 36PIO0 14PD3I/OCD2(L : Active) (Not used) 15PEOI/O TPO 37PI10MUTE Muting control

22、 signal(L: Active) 16PE10TP1 HOLD -COMBackupcontrol TP2DECK control signal (Not used)38 17PE20 I (L:Back up, H : Active) 18PE30TP339INTI+SV 19RES0Reset input40VDD-+SV 20TESTILSItest terminal (GND)41PAOIRemote control Data input 21VSS-GNDPower ON/OFF back up 22 42 PA1I (H: Back up, L : Ever ON)OSC1-

23、-COMclock circuit 400kHz 23OSC2I 16 AV-80Y WAVEFORMOFTESTPOINT PointG):01,02 (Pin 7 and 8 ofIC10) V : 2V/divH : 2msecldiv DCrange1 : 1 probe Point):OSC (Pin 23 of IC10) V:2V/div DCrange H :2sec/div 1 : 1 probe POlnt:03 (Pin90fIC10) V:2V/div DCrange H : 2msecldiv 1 : 1 probe Point:+5,RES (CH 1 :Emitt

24、erof09CH2 : Pin 19 of IC10) V : 2V/divH : 200msec/div DCrange1 : 1 probe 17 CH1+ CH2+ ( t When the power cord is connected to AC outlet. (This waveform is not availablebythe power switch ON.) CH1 CH2 -I / 3 TUER PJ2B a: tn a: BU4066B orLC4066B orMC14066BCP ( TUNER LD PJ3A PJ3B L(+RI7 YlK RrlR20 (Qtl

25、K CD a: m a: REC VCRI7 TAPE VCRI BU4065B orLC4066B_ INPUT SELECTOR (T1 ru a: CD ru a: m ru a: IK IK R31 R32 lK IK R24 R30 L()+R21 YlK PJ2DR PJ2C PJ2EL PJ2FR PJ7CL PJ7BR PJ7DR PB REC TAPE 5 4 6 7 1_ k 1= ( (: (:;. I:. (:. RESISTOR REMARKSPARTSNAME NOMARKCARBONFILMRESISTOR( 115W) 0CARBONFILMRESISTOR(

26、1I4W) 6.METALOXIDEFILMRESISTOR ; C2B7BIA.B :o T6 470 o-91 R 1 2i2K ill 0 0 iI I -1 1 orBA1521B +Qr :;,8.9 ,hsM521BLV ill0R5R43 tDl.g;IT:gC627:K. 11 3OK Ugjii-6.31(6)j_j:CfsI 2700P0.01C33R 5 ,0-1,4 RBIT3lC1B 1500-c:.404.7/50220I J o90CD ,M521BLV,.i CJ1ioorCBAI52IBNJ1f-iH1i-I,i- L.U-9-Iiiilno.nrrnI _

27、_l.;,3ku$E.-T7orL-C44066B I orMC14066BCPPHDND :.t-.:j!l-;l!-I+-= r-1-t-t-i 0 -:;JO-*-+t-IICD ofJ(T)-rj.W6-Jt-1t-+-.+- I -+-.J -HL-f-:8II, - J:.tDRO, -t:.2.ar -91ill10., .-Ui-=-III- lK R12 .():tR9 LylK PJ1DR PJIB PJ1C PHONOMMr EOAMP RI05BC2B PJ1ALUn;,;.15D.,;.+;:-074.5DR40 ,/Ii062ClA.220 (6)C(9oC:O a

28、.ITfC327DDP0.61;g oO;f7/6.3R3R42a:.- IT:g27K330K CD PHDNO 2 . -9 PJ2AL 3 TUNER PJ2B R13 lK RR16 (QllK IT tD IT BU4066B orLC4066B orMC14066BCP TUNER I PJ3A LD PJ3Br L(fR17 1 1K RR20 1(27lK co IT CJ1 IT PJ2EL PJ2FR PJ2DR TAPE BU4065B orLC4066B_ BU4066B orLC4066B fJ fJ IT (T) fJ IT IK lK R24 L()tR21 Yl

29、K PJ2C PB REC TAPE 4 5 PJ7BR VCRIm PJ7CL REC PJ7DR R30 lK R31 IK R32 lK co Ii CJ1 fJ IT 6 I-;: -ift: K4 03 -I I I I I: II -=- I._- ,I- II23=. I E5(2)-54_:_ i-+-+-+C-R:.=.E-M L-I_+-=9_w IJJ.COM(g)I SYSTEM CONTROL 1_ e C821 52D V v IV r V:iI3l 0p.ri8UP5.? Ti(J:-R_E_M4 .7-+-f-, 152K1TVOOqlI .-,-:_,-i-0

30、-l(T),1-4-.8-+-.,.1.-t5:-:5:+-1- 11III-0K2T1NT52155133-IL-_+-ll_-=-R=E,;,;,.M-j 1110K3LD7D!I-,H=O=L=-04:.:.:.6:.-+-tt-_H-O=L=-0 :1tK4cD:;I-,M=U=TE48- Dl:l-T-A-PE.:O-iI-10(JJ,-9.1TAP 2TP1 :LOo0(T)-90LO I TP2;TUNERO0 o+ IC2 : NJM4558S Dual Ope-amp VOlVinl+VinlVEE+Vin2 -Vin2 VOl Vee _-C_- EFG H-IL -9-

31、I- L SW4I i LEVELDR. ;GPIGP a:c: uJ1515luJ r1ITruCIru *2 -.J0( tn OUT PUT LEVEL -9.1 -, POWER ., l .MAIN!1) i-!I1-;-,- 33K LL; !S_q R66.C46I 10/_16O-_-_-_-_-_-_-_- IIJ.COM(g)I #27 SYSTEM CONTROL E +9 C822 PS C821 BUFFER IV I C38 4.7/50 IDt: CD0 a: NJM4558S- - to - 3p8 Op.Fc8UP52u -TIPEMON_;1I-R-=-EM

32、4:!.7-+-_-:-:-_f-, , 52ruVOOQlI y.-,-r-_.-+_Ot: CD0 a:gj t: o ru ru -j 07 !stOTAI14ES -148 I I SUPPLY 18 OUT6OUB IN6 our. IN 5 OUT3CUT2OUTI IN 2 IC11: LB1294 LED Drive Ica: BA6229 Motor Drive IC9 : BA6144 Level Meter Drive .Allvoltage are measured witha10Mn.JVDC electric volt meter. .Components havi

33、ng special characteristics are marked Lf:.and mustbe replaced with parts having specifications equaltothose originally installed. .Schematic diagram is subjecttochange without notice. UCR,A : a:- ttl : IR93OPEN3.3KIII 2R995OPEN.7K 8ii : 3R102 70 6208ii to- .o_ 2SC17OSIRSIu 01112OPEN2SC26031E,FI 2SC3

34、311AIOR.SI 5022OPENSLR-3VC3H3 LASTNO. C57 R106 Q 12 02 ICII SW8 PS VIS II222C IN/OUTOuT/INT/ININIOUT IICOM(6)I +9 IC3-6: LC4066B, MC14066BCPor BU4066B Quad Bilateral Switch )-+-13=0 I I .M7_)_1 POWERSUPPLY 8)l-COMRESET Vi02V02Vee l I I!-I II I.- III- 023 155133cr ).S.4-aol-4:!.!S-4-_-j _JK.L.-1_ AV-

35、80Y o ru Cl I I I I I I _1 622 It IDLINGCURREN ADJ.(Lch) Ica: BA6229 Motor Drive IC11 : LB1294 LED Drive UCR.A a:-.l 0 1R93OPEN 33K i . 2R9495OPEN4.7K .0 3Rl02470620 t:J I.D_ 2SC1740sIR.slu) 401112OPEN 2SC26031EF I 2SC3311AloR.sl 5022OPENSLR-34VC3H3 LASTNO. C57 R106 PS +9 I).tCOM(4)I - -1:;0 I I .M7

36、_)_1 POWERSUPPLY a)lCOMRESET rC9 12345 -I I !I-IOI-I I:020SLR-550C3H II I.- , r- II023 lSS133 f-!-5.:!-4.:!-4.-S-+-.,50 f1 I f1 ,U , ) LEVELDRIVE 1013 08 Q-340C3H3 3 4 NOTICE (0).-Japanese model (U).U.S.Amodel 5 (C).Canadianmodel (A).Australianmodel (G).Europeanmodel (B).Britishmodel (R).Generalmode

37、l (P).RPmodel I .J GRAPHIC L-_-+-,EQAMP , -+15 AMPVIDEO VIDEO SELECTOR ,mlu 1,1rx12. 3. IC,H2 : Dr(:47116C333 R365Bo:rx1:.lOrtl;J.ii14:,7116;iiiiiiiiiii-Fmiiiiiiiiiii-I.ii7!ii6iiiiiii-I-IIlII,rMo,ofml11 l1li 100I :;0_;0r(J:If t u;379 9-05-J7-12-I0227022933 -9.19.0C1B15vlC1B151vl r-l-, Ib-91-_1iIIIIl

38、IllI- PJ203IIlIliI:IIImIlp MONITORr.-R-VVI:7-CH3:r.I-+-1-+-i-.-JSVCRI I1000/10-+-+-1_=+-.!.:iI-:.:.:.:.:.-+-+- Iro6 I-Om4ES , i-c,; -_: 0, - J PB . . VCR1 REC 0Y 0 7 rl7 I I 6 I I , PJ201I LO R364 100 8 TO)J-COM(9) PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS. / 2SA105(Y)2SC2925TjlPC2415HFA

39、N79M15F2SA13582SA1491 404841155133 2SA970(GR.BL)DTC144E5 AN78 AN79M09F 2SC3421 2SC3855284841MA185 2SA1370(D. E. F)2SD1485(P:O,R) 15R139-100T32 2SC1815Y MTZJ12C 2SC1740S(S,R) ,:INPUTCOMMON . A 2SC2603(E. F) 2:COMMON 2:INPUT 2SC3311A(O,R.5)3:OUTPUT3:OIJTPUT 2SC224O(GR,Bl) ( 2SC2878(A,B) 23 23 ECathode

40、 BE 19 ABcD AV-80Y SCHEMATICDIAGRAM 1 RESISTOR REMARKSPARTSNAME CAPACITOR REMARKSPARTSNAME NOMARKELECTROLYTICCAPACITOR 181TANTALUMCAPACITOR NOMARKCERAMICCAPACITOR AXIALREADCERAMICCAPACITOR POLYESTELFILMCAPACITOR 0POLYSTYRENEFILMCAPACITORU CDMICACAPACITOR POLYPROPYLENEFILMCAPACITOq SEMICONDUCTlVECERA

41、MICCAPACI-J: L3L5L7 L2L4L6 MLAL1 MLB NOMARKCARBONFILMRESISTOR(I:; .-ICARBONFILMRESISTOR(II! DoMETALOXIDEFILMRESISTOR R201 220 2PlK 2SC3855 6800/56 2SA1491 T7A250VT2 5A250V 470/63470/25 12KOPEN 47/16OPEN !GR.BLI OPEN MTZJI2COPEN (P.O.RI OPEN 10/16OPEN OPENSHORT c;-I.2K B.2K 100 1F2017A125V7AI25v 2 C4

42、12 470/25470/25 3R463.470OPENOPEN 4 C413 OPENOPEN 5 0244 OPENOPEN 6 0212 OPENOPEN 7 0245 OPENOPEN 8 C414 OPENOPEN 9 J381 SHORTSHORT 10 11 R3002Pl8K 2 I. 021321.2502029 1502152162581347 16C283.28.820017 117RY201 OH2402-0TM , I18C302.3030.082 19C3043050.27 20C306.3070.33 21C328329033 22C4224230.56 23C

43、347-3562.7K 24R22322410K 25R227.228150 3 4 GRAPHIC -+-EOAMP 5 NOTICE (.J).Japanesemode1 (U)U.S.Amodel (C )Canadianmodel (A)Australianmodel (G)Europeanmode1 (B).BritishmOdel (R)Generalmodel (P)RPmodel _,1 R202 220 -+-:;.+15 , -H-, I .J -15 GL P2 .15 6 I I I I PJ20II LO R364 .100 - VIDEO SELECTOR -,-j

44、-, 10f12.3. 1C332 - - , J 12 1 .J :-T )-C820-5-I JK_1#201C8204 1f!?IaKIIXTR IJ,2RY 4.81x2 I I I g - I I crCB20-5-,I )471JK201#20 lK/CB204 f1:-OBc:.=Hr-YS-1-TR-.j+-_+-_;-_ lW25v.rl=Y: A.Blx2;: ._PHONES+15 IKn-:-G-_-.JrPROfcr 0lBIMAINI8i1;. _10_ , c: r. . r-. . E E Vss 3 iI222C IN/OUTO.JTIN OUT/IN INt

45、OUT IC201 : IlPC4570HA IC221 : NJM4560S Dual Ope-amp VeeVo,Vin,+VinJVEE+Vin2 Vin2V02Vex. IC203 : LC4066B, MC14066BCPor BU4066B Quad Bilateral Switch IC202, 208 : M5218AL Dual Ope-amp IC219, 220 : M5226P Wqualizer Amp INDVee0.IA -, t, , , , I, I, , , , , , , , , , , , , , I I I I I, , , , , I, , I, ,

46、 I, , , , , , , I I, -I, , , , , , I, , I, I I I, , , I, , , , 488 424 249 218 221Ie 0 cra- D . 7 0217 C22401GR,8L) 62 _,0203 I.404841L -f- -_-_-_-_-_-_I SUPPLY , :iil,.,-=H:47tII- :jTE202QC.XH048H.XI78 -lkIr:r:l- - - - - - - -,AC2-f-( /,II): IvI,ACl :II):I,r- t:rf1T,1 Y-+-r-+c-r:i1I:E: JIII0III -+-t-,I -II: Lf12g1itFi ,151