Yamaha AV-80Y Service Manual Download Page 2

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Summary of Contents for AV-80Y

Page 1: ...ple agent relationship of any form The data provided is believed to be accurate and applicable to the unites indicated on the cover The reserch engineering and service departments of YAMAlIA are continually striving to improve YAMAlIA products Modifications are therefore inevitable and specifications are subject to change without notice or obligatim to retrofit Should any discrepancy appear to exi...

Page 2: ...o the power outlet only one way This IS a safety feature 1 WARNING CHEMICAL CONTENT NOTICEI 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 Agency and possibly other entities to cause cancer and or birth defects or other ...

Page 3: ...T R model T A model T H model AV 80V CJJIG CO 1 IIe LD 1 eM GUt 1IQ J20 22Q11 a V DU1I G XJYtM1 T8 IOI JHa 5 5 5 5 5 o I l 8 j o o oo i i m LJ LJ 2 ...

Page 4: ... C 100W R A 75W H Dynamic Headroom sn IEC Power 1kHz 0 1 THO SQ 6n Damping Factor 1kHz sn Input Sensitivity Impedance Phono MM CD etc Input Sensitivity New IHF Phono MM CD etc Maximum Input Signal 1kHz 0 02 THO Phono MM Output Levelllmpedance Rec Out Headphone Jack Rated Output Impedance 0 1 THO RL sn 1S0mV 150n U C 220mV 100n R A 1S0mV 100n H ID T Unit mm Inch l J 17 1 8 CJ 0 ID o II ION 0 ccccc ...

Page 5: ... f TAPE VCR Ol ___t MUTE ICIO 5 MOTOR CONTROL ICIO lca TAPE VCR cO XL1 D FUNCTION LED 05 8 10 16 17 R392 SYSTEM r fv lO CONTROLLER IC10 RECEIVER UNIT U1 f REMOTE COT N LD rtjl VCR PB VCR REC PHONO MONITOR o UJ o J z o u UJ o UJ 0 4 ...

Page 6: ...A L R R 5 EO UNIT IC20aA MOTOR a CONTROL ICIO LEVEL ICa METER IC9 KI K4 I NPUT SELECTOR 01 03 _ I POWER SW SW2 8 R A 1 PHONES POWER SWITCH DRIVE 0246 MOTOR CONTROL SYSTEM ICa CONTROLLER IC10 MUTE T201 SUB II POWER 12 SUPPLY 0210 POWER SUPPLY F201 J COM RESET B POWER SUPPLY 09 10 1 0203 204 06 7 9 I C204 207 4 5 ...

Page 7: ...d slide the TOP Cover back 2 Removal of Front Panel Remove 6 screws CV in Fig 1 and pull the Front Panel toward o POWER TRANSFORMER f MAIN CIRCUIT BOARD 2 o MAIN CIRCUIT BOARD 1 e Jl COM CIRCUIT BOARD 9 3 Jl COM CIRCUIT BOARD 1 3 MAIN CIRCUIT BOARD 4 o Jl COM CIRCUIT BOARD 3 Top Cover 6 3 Removal of Bottom Cover Remove 4 screws in Fig 1 Fig 1 ...

Page 8: ...n the Panel upper rib Fig 3 Note 2 1 2 Tum the Top Cover downward I Note 2 It s supporting point should be as in above st p D Fig 4 Slide the Top Cover forward It Fig 5 ADJUSTMENTS 7 Idling Adjustment To stabilize operation of the amplifier turn ON the power in the no signal state and wait for two minutes before the adjustment Adjust VR201 L ch so that the voltage at both R255 L ch becomes DC1 5mV...

Page 9: ...02 C3 0219 G3 o206 F3 0203 C2 0220 F2 o215 G3 0204 C3 0221 F2 o216 03 0205 02 0222 F2 0217 F2 0206 03 0223 F2 IC201 F5 0207 E4 0224 E2 IC202 F5 0208 E4 0226 F2 IC203 02 0209 G3 0227 E2 IC204 E2 o 210 03 o229 F2 IC205 E3 0211 G3 0230 02 IC206 02 0212 03 0232 C2 IC207 03 0213 F4 0237 C3 IC208 F2 o214 04 0238 C3 IC219 G5 0215 G4 3 MAIN C B 4 0 YST SELECTOR 3 CONVENTIONAL YST l Z YST 2 4 5 z Ci 5 E o ...

Page 10: ...n o xJ m xJ IDLING CURRENT ADJ L ch DC 1 5mV to 3mV IDLING CURRENT ADJ R ch DC1 5mV to 3mV D E F G H AV 80Y TO JlCOM 9 TO JlCOM 1 VI DEO SIGNAL LD VCR MONITOR OUT IN OUT POWER TRNSFORMER TO VR BLOCK CD 8 FROM jJCOM 3 9 ...

Page 11: ... COM C B 9 l ll r IDU5mJl y_ J J J J J TO J lCOM 2 FROM MAIN 1 Semiconductor Location Ref No Location Ref No Location Ref No Location Ref No Location o 1 03 014 G4 IC 4 82 a 3 02 o 2 03 015 F4 IC 5 82 a 4 82 o 3 G2 020 F5 IC 6 C2 a 5 C2 o 6 E2 023 G5 IC 8 G2 a 7 C3 o 7 02 024 04 IC 9 F4 a 9 E2 011 G4 IC 1 A2 IC10 C4 010 E2 012 F4 IC 2 02 IC11 84 011 02 013 G4 IC 3 82 a 2 02 012 02 I FROM J lCOM 2 ...

Page 12: ...M C B 4 100 20 2 0 4 0 1 OUTPUT LEVEL FROM pCOM 9 _ I IO 3 o T1 0 0 D O 0 o 3C s s Z I 0 0 0 T1 3C I D 0 0 I 0 0 0 1 3C 0 Z 0 PI i Q I JlCOM 8 1 JlCOM 2 Jl COM C B 5 Jl COM C B 6 0 COM 5 E J I PLD REMOTE CONTROL VOLUME FROM JlCOM 1 11 ...

Page 13: ...ent side MAIN C B 2 U C models AC OUTLETS _ FROM AC CORD 2 a o i a t 0210 00 T201 3 TO POWER TRNSFORMER 4 MAIN C B 2 A H models 4 FROM AC CORD TO AC OUTLET A ONLY or TO MAIN 7 H ONLY 9 5 J m E y E a 0 i a 021 ACI t CD AC2 T201 RE AI BE H TO POWER TRNSFORMER 12 6 ...

Page 14: ...D E MAIN C B 2 R model AC OUTLETS F G FROM AC CORD AV 80V MAIN C B 6 R model H ORD o o i o t TO POWER TRNSFORMER I __ MAIN C B 7 H model AC OUTLETS VOLTAGE SELECTOR 12 FROM MAIN 2 13 ...

Page 15: ...D CIRCUIT BOARD Foil side 2 3 4 5 Note iii Component side COM C B 7 H model LFROM J l COM 1 1F I STANDBY COM C B 2 MAIN C B 8 I FROM MAIN 1 RY TR L G R 15 PHONES EQ UNIT SLIDE POTENTIOMETER BLOCK COM C B 8 6 TO COM 9 7 POWER 14 ...

Page 16: ... INTERCONNECT WIRING DIAGRAM IMAIN C B 11 I I CON c 813 I I CON C B 91 I TR 20 r l L __ __ U C A H _ _ PIlE R i G MAIN C 8 21 15 7 ...

Page 17: ... 29 PG1 0 VCR 7 PCO I O 01 30 PG2 0 Not used 8 PC1 I O D2 Key scan signal H Active 31 PG3 0 Power control signal H ON 9 PC2 I O D3 32 PHO 0 Volume Up control signal 10 PC3 I O PLO PHONO PLAY CUT Control signal 33 PH1 0 Volume Down control signal 11 PDO I O Not used 34 PH2 0 TU2 12 PD1 I O COO 35 PH3 0 TU1 Tuner control signal Not used 13 PD2 I O CD1 CD control signal Not used AMUTE Audio Muting co...

Page 18: ... of IC10 V 2V div DC range H 2 sec div 1 1 probe POlnt 03 Pin90fIC10 V 2V div DC range H 2msecldiv 1 1 probe Point 5 RES CH 1 Emitter of 09 CH 2 Pin 19 of IC10 V 2V div H 200msec div DC range 1 1 probe 17 CH1 CH2 t When the power cord is connected to AC outlet This waveform is not available by the power switch ON CH1 CH2 ...

Page 19: ...I 4W 6 METAL OXIDE FILM RESISTOR METAL FILM RESISTOR g METAL PLATE RESISTOR FIRE PROOF CARBON FILM RESISTOR 0 CEMENT MOLDED RESISTOR SEMI VARIABLE RESISTOR I il CHIP RESISTOR CAPACITOR REMARKS PARTS NAME NO MARK ELECTROLYTIC CAPACITOR ff TANTALUM CAPACITOR NO MARK CERAMIC CAPACITOR AXIAL READ CERAMIC CAPACITOR POLYESTEL FILM CAPACITOR 0 POLYSTYRENE FILM CAPACITOR H CD MICA CAPACITOR POL YPROPYLENE...

Page 20: ... MC14066BCP PHDND t j l l I r 1 t t i 0 J O t I I CD o f J T rj W 6 Jt 1t I J HL f 8 I I J tD RO t 2 a r 9 1 ill 10 Ui I II lK R12 t R9 L y lK PJ1D R PJIB PJ1C PHONO MM r EO AMP RI 0 5 B C2B PJ1A L U n 15 D 0 7 4 5DR40 Ii 0 6 2ClA 220 6 C 9 oC O a IT fC3 27DDP 0 61 g o O f 7 6 3 R3 R42 a IT g 27K 330K CD PHDNO 2 9 PJ2A L 3 TUNER PJ2B R13 lK R R16 QllK IT tD IT BU4066B or LC4066B or MC 14066BCP TUN...

Page 21: ...1 ii ____i l O l D LD TUl I 111_1 2 7_0 3 TUO I Hf a 0 L P 1 VRON O V PL1 T VRUP O V COO POWER4 5 CD 1 T V C R2 V C02 VCR10 0 91 VCR I TPO m l T A PE O iI 10 J J 9 1 TAP 2 TP 1 LOo 0 T 9 0 LO I TP2 TUNERO 0 T 9 0 TUN R TP3 LD C04 7 4 7 LD n 7 6 CD 4 6 RES PHONOO 0 cD 9 0 IPriO 0 OTE5T 0 05C225 R51 2 c wt o V5 ST 05C123 lK r rE A400K048 91 1 R59 _RI 1 V 100KX5 GT G _ _ _ _ _ _ 1 54 l MAIN 1 TIeE Ja...

Page 22: ... ISS 133 IL _ H_ R E M 1 1 11 0 K3 lD ID I_oH 0 LO _4 o 6 I__ H 0 L 0 1 1 K4 lD J_ M U T E4 8 J ID I 1 s j g AMUTE 00 L __ II t O lID l TU I L I _ 2 7_03 m TUO ___1H _f__H__ _____ 70 L __ 0 VRON O VPLI VRUP O IV COO ru POWER45 CO I T V C R 2 2 1__ V C02 2 VCRIO 0 p rrr 9 1 VCR cif I TPO cr rul T A P Eo II o ru d 9 1 TAP 2 TPI LOo 0 l 1 90 LD I TP2 CD TUNERo 0 J T 9 0 TUN R TP3 C04 7 4 7 76 CD 4 6 ...

Page 23: ...l to those originally installed Schematic diagram is subject to change without notice U C R A a ttl I R93 OPEN 3 3K III 2 R9 95 OPEN 7K 8ii 3 R102 70 620 8ii to o_ 2SC17 OSIR SI u 011 12 OPEN 2SC26031 E F I 2SC3311AIO R SI 5 022 OPEN SLR 3 VC3H3 LAST NO C 57 R 106 Q 12 0 2 IC II SW 8 PS VIS I I 2 2 2C I N OUT OuT IN T IN INIOUT II COM 6 I 9 IC3 6 LC4066B MC14066BCP or BU4066B Quad Bilateral Switch...

Page 24: ... A a l 0 1 R93 OPEN 3 3K i 2 R94 95 OPEN 4 7K 0 3 Rl02 470 620 t J I D_ 2SC1740sIR sl u 4 011 12 OPEN 2SC26031 E F I 2SC3311Alo R sl 5 022 OPEN SLR 34VC3H3 LAST NO C 57 R 106 PS 9 I tCOM 4 I 1 0 I I M 7_ _1 POWER SUPPLY a l COM RESET rC9 1 2 3 4 5 II I I O I I I 020 SLR 550C3H I I I r I I 023 lSS133 f 5 4 4 S 50 f 1 I f 1 U LEVEL DRIVE 1013 08 Q 340C3H3 ...

Page 25: ...BCP I l _ 23 L r J I f t u 379 9 0 5 J7 12 I 0227 0229 33 9 1 9 0 C1B15 vl C1B151vl r l I b 9 1 __1iIIIIlIllI PJ203 IIlIliI IIImIlp MONITOR r R V VI 7 C H3 r I 1 i J S VCRI I 1000 10 1 __ iI I ro 6 I O m4ES i c _ 0 J PB VCR1 REC 0 Y 0 7 rl7 I I 6 I I PJ201 I LO R364 100 8 TO J COM 9 PIN CONNECTION DIAGRAM OF TRANSISTORS DIODES AND ICS 2SA10 5 Y 2SC2925T jlPC2415HF AN79M15F 2SA1358 2SA1491 404841 1...

Page 26: ... OPEN GR BLI OPEN MTZJI2C OPEN P O RI OPEN 10 16 OPEN OPEN SHORT c I 2K B 2K 100 1 F201 7A125V 7AI25v 2 C412 470 25 470 25 3 R463 470 OPEN OPEN 4 C413 OPEN OPEN 5 0244 OPEN OPEN 6 0212 OPEN OPEN 7 0245 OPEN OPEN 8 C414 OPEN OPEN 9 J381 SHORT SHORT 10 11 R300 2Pl 8K 2 I 0213 21 2502029 15 0215 216 2581347 16 C283 28 820017 117 RY201 OH2402 0TM I 18 C302 303 0 082 19 C304 305 0 27 20 C306 307 0 33 2...

Page 27: ... I I c c G R390 22K u S 15 11 MU POWER SUPPLv T 0 A u 50 9 1 IC207 15 4N_7_9M_0_9F _ _ 5n z _ _ y 9 _____ C22 J TO cOM111 9 G 4 7 r 0232 7 0 C29251TI R392 JK202 TO PLAYER REMOTE CONTROL COM 19 155133 M5218AL IlPC4570HA LC4066B M5226P MA185 NJM45605 BU4066B 15R139 100T32 MC14066BCP MTZJ12C A Cathode 1 ...

Page 28: ...R LM RESISTOR ATE RESISTOR OF CARBON FILM RESISTOR IOLOED RESISTOR 1 ABLE RESISTOR 1 STOR NAME APACITOR a TT OR liOR IAMIC CAPACITOR CAPACITOR LM CAPACITOR H FILM CAPACITOR CERAMIC CAPACITOR POWER AMP m en o A137010 E FI 6 6 05g g t i 53 1 Ii ii 15P 15P II Of 1 61 A1s5 C255 CT u oHop WI R239 I l CD C419 I lOP iJi 1 l CB20 5 I 471 JK201 20 lK CB204 f 1 O B c H r YS 1 T R j __ _ _ l W 2 5 v r l Y A ...

Page 29: ... II j TE202 Q C XH048 H XI78 lk I r r l AC2 f I I I v I ACl I I I r t rf1 T 1 Y r c r i1 I E JII I 0 I I I t I I I Lf1 2g 1 itF i 151 5HF 2 927 I l 9 i IAI o r t 2 2 9 1 7 4 I g a r n ilg lS TE20l U gj u rLC AST NO 4 I C I o tIl I I U iG g UJI re I I 150 6 u 1_ _ _ 5 1 f _ 2N 9 J81 J _ l _ _ I l I JI Lf1 2 2 d tJ 05 51 15 A9701GR BL I CURRENT ADJ r llt u IcJ l_ l All voltage are measured with a 10...

Page 30: ...4560S Dual Ope amp IC203 LC4066B MC14066BCP or BU4066B Quad RilatJv l Switch IC202 208 M5218AL Dual Ope amp dJ ru 0 a Cl 0 15 C _ A970 GR 6L I CURRENT ADJ t l t Lhll _ 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I 1 L i l HO 47 i 1 U n TE202 C XH048 H X1783 _ lI lk _ _ __ r_I_ rAl AC2 i i _ II l U o 18 a 0 62 6 6 IV 0212 AI358 M5218AL 06 70 5 0 flrt __ IC208 6 R290 I ...

Page 31: ...0V pp Jy C263 266 IJT454JOO POLypROI YLEHE FILM CAP O OluF 100V pp Jy C280 282 FG2JI100 CERl I flC CAP IOrF 50V t l Y C255 258 419 120 Ffi2111S0 CERAlHC CAP 15r F 50V e 7 J Y C25I 2 4 FG211220 CERAtHC CAP 22pF SOV e 7 1 1 334 335 FG2JI470 CER HIC CAP 47rF 50V e7 1 Y C239 240 FG212100 CERAt IC CliP 100rf 50V e 7 1 C205 20G 2U8 299 FG212390 CERAtHC CI P 390pf 50V e7 1Y 231 232 FG213150 CERAMIC CAP 1...

Page 32: ...Y 1f jil R225 22G 271 272 IIV45 l 50 FLAt IE PROOF CARRON RES ISTOR ISQ 1 4 11 r ftjJ 1 Yjff1A RiG8 IIV454330 FLAI E PROOF CARBOIl RESISTOR 33Q 1 4 11 1 f J ft J 1 Y 11 fi R378 379 IIV 155150 FLMfE PR lOF CARUml RESISTOR lS0Q 1 4 I r ft f y llHt R227 228 UC IlV455100 FLAIIE PRPOF CAR130H RESISTOR 100 i2 11 1 11 1 j 11 tJ j y IJIf R227 223 RAH IIV 1 5270 fI AHF PROOF CARBON RESISTOR 270Q 1 4W r r J...

Page 33: ...CR203 VA787700 PRE SET POTENTIOHETER B2 2U2 li litV R VR201 202 lA10l i21 TRANSISTOR 2SA1015 Y r 7YY A9 0224 226 247 IA097000 TRANSISTOR 2SA970 GR BL r 7Y A9 J219 VA8 i4700 TRANSISTOR 2SA1370 D E F I 7Y A 0205 206 lC1815CO TRANSISTOR 2SC1815 Y I 7Y Z 0227 229 246 ICl74070 TRANSISTOR 2SC1740S R S I 7Y A7 Q223 IC224000 TRANSISTOR 2SC2240 GR BL I 7Y A7 0201 204 207 208 217 218 220 221 IC224000 TRANSI...

Page 34: ... 100uF 10V 7 J C1 9 11 1837330 ELECTROLYTIC CAP 33uF 16V 7 J C49 IJ J838 170 El ECTROL YTiC CAP 470uF 16V 7 1 57 U J7GG100 ELECTROLYTIC CAP luF 50V 7 J C50 UJ866470 ELECTROLYTIC CAP 4 7uF SOV 7 J C28 33 35 38 39 UM397220 ELECTROLYTIC CAP 22uF 16V r J C52 lJlH 16470 ELECTROl YTIC CAP 4 7uF 50V 7 J C51 FI fl16100 ELECTROLYTIC CAP 1uF 50V BP 7 J C47 V l930900 SEtH COIWUCTIVE CERAIHC CAP O luF 2SV t t...

Page 35: ...OLDER WIRE 8P 1 7 1 JI Jv9 CB18 IAI01521 TRANSISTOR 2SA1015 Y 1 7 VA9 010 IC206000 TRANSISTOR 2SC2060 P o R 1 7 J A9 09 IC287800 TRANSISTOR 2SC2878 A B t 7 JA 02 3 IC174070 TRANSISTOR 2SC1740S R S 1 7 JA9 011 12 H VD678500 DIGITAL TRANSISTOR DTA114ES 7 V V t 7 VA9 07 VIJG78700 DIGITAL TRANSISTOR DTC114ES 7 V 9 I 7 J A 04 5 If004600 DIODE lSS133 9 f t D1 2 7 18 19 23 24 VG437600 ZEtlER DIODE MTlJ5 ...

Page 36: ...A AV 80V B c D 4 5 6 7 25 ...

Page 37: ...A 12 VK625700 1 COM CIRCU IT BOARD J I H 13 XIl047AOO pallER TRANSFORMER 1 i 1 7 A U 13 XH048AOO PO JER TRANSFORHER II 1 7 A C 13 XI781AOO PO JER TRANSFORMER 1ImH7 A R 13 X1782AOO POWER TRANSFORMER lIil 1 7 z A 13 XI783AOO POIIER TRANSFORMER i 1 7 A H 14 VA932900 VOLTAGE SELECTOR ESE 37226 II f MM R 15 CB620200 CORD smrPER CM 22C J F A I UC 15 CB620HlO CORD smpPER CH 22B J F AI J RAH 16 HG002220 P...

Page 38: ... j of IJ J 32 EI330086 BIND HEAD TAPPING SCREII 3x8 FCRM3 BL J t 33 EN340020 BIND HEAD BONDING TAP SCREII 3x8 FCRMJ 8L r j B I J 34 E0330086 FLAT HEAD TAPPING SCREII 3x8 FCRMJ BL Jnl I 35 EK336010 811 HEAD TAPPING SCREII 3x8 FCM3 BW J 36 EK330030 BII HEAD TAPPING SCREII 3xl0 8 FCM3 BL BW I I 37 EK365040 811 HEAD S TITE SCREW 4x8 10 FNM3 BL BW I s I t J T 37 EK365090 811 HEAD S TITE SCREII 4x8 10 Z...

Page 39: ...s C6 C7 01011110 5 6 KEY DATA CODE FUNCTION No Do 01 02 03 04 05 De 07 1 0 0 0 0 0 0 0 0 TAPE PLAY 2 1 0 0 0 0 0 0 0 REW 3 0 1 0 0 0 0 0 0 FF 4 1 1 0 0 0 0 0 0 STOP 5 0 0 1 0 0 0 0 0 REC PAUSE 6 1 0 1 0 0 0 0 0 REG MUTE 7 0 1 1 0 0 0 0 0 DECK AlB 8 1 1 1 0 0 0 0 0 DIR A 9 0 0 0 1 0 0 0 0 CD PLAY 10 1 0 0 1 0 0 0 0 PAUSE STOP 11 0 1 0 1 0 0 0 0 SKIP 12 1 1 0 1 0 0 0 0 SKiP 13 0 0 1 1 0 0 0 0 SEARCH...

Page 40: ...120 HF8S5120 330 Kn HJ3S 8330 HF8S8330 150 n HJ3S5150 HF8S5150 390 Kn HJ3S 8390 HF8S8390 160 n HJ3S 5160 470 Kn HJ3S 8470 HF8S8470 180 n HJ3S 5180 HF8S5180 560 Kn J3S 8560 HF8S8560 220 n HJ3S5220 HF8S5220 680 Kn HJ3S 8680 HF8S8680 270 n HJ3S5270 HF8S5270 820 Kn HJ3S 8820 HF8S8820 330 n HJ3S5330 HF8S5330 1 0 Mn HJ3S 91 00 HF8S91 00 390 n HJ3S5390 HF8S5390 1 2 Mn HJ3S 9120 470 n HJ3S 5470 HF8S5470 1...

Page 41: ... in YST modes only which causes a pop in the loudspeakers when the protection relay opens or closes CAUSE C294 and or C295 are getting leaky because a reverse voltage is applied across them after the unit is turned off for about five to ten minutes SOLUTION Replace C294 and C295 with a 100 ufd 25 Volt non polar capacitor part UK748100 any time the unit is brought in for service NOTE Be sure to dis...

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