Pioneer SX-82 Service Manual Download | Manualshive

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Summary of Contents for SX-82

Page 1: ...I SERVICE TVIANUAL AM IFM MULTIPIEX RECEIVER sxrg2 pINNEER ELEGTRNNIG GNRFNRAjTINil TOKYO JAPAN i s ...

Page 2: ...t I I I CONTENTS I SCHEMATIC DIAGRAM 2 LAYOUT 3 BLOCK DIAGRAM 4 ALIGNMENT INSTRUCTIONS 5 DIAL CORD STRINGING 6 PARTS LIST 7 TROUBLE SHOOTING ...

Page 3: ... jinE Q oq rlr rit I 08 ss J QIO iir l e o P uS EP a ll DO i 3P s3 t i O 2 q a if qC cS b ii r i z oq p ft81 a z LO doa 4 aq u3 il lt E 5 i F 6ll J fr i i F I I 12 i 53 5 I o lu S Xs ie i c d qul 6 s uEds Q ft OFL v 1 qs 5q a Sie SS illjtE ilil a J ftx oP lE ol 11 l 3 t t 8 1 A E a0L 9 ogi 6eN A Yqs da o S rE tr do gco EN l T is NS Y 3x 09f n1zt6 8 v t009 sea o F qi Srb S Gs li9g ujlo eF P 4 t 1 a...

Page 4: ...I or x rn r I uoo I to I l aux CHANNEL B r I Pr I vt t2ax7 I J oualrzeR l L I IEF rir V6 V 7189 A NFB V5 64N8 CHANNEL do u i u sPEAKER I PHASE rru rr lnx oureur auorb ournrr v t z l2ax7 T2 vB 6846 lOTMc Ta RATIO DISCRI FM ANTENNA 3000 AM ANTENNA 2NO IF AMP W R6 f 5ot u li ou f sog Y I m lrd Tsiii o i l l A tAt rrroror6ft sceil lsos v v _ r A lLgtoil Iltltt lstPlPAllol 6l vcr lr r 2J vc rrl i fd vc...

Page 5: ...I MODE STEREO NOR VTAL Position of Volume Control I II1IIIMUM p B I Signal Generat cmutoc I LJ rl tr 1 I C oupl lng Pin 1 of V L2 6ra6 a l W then ad just to to BROAD ad just SHARP position Pin 7 5m6 of Vrn 1 or fnpu Freq 455kc rst set et a cu to fig 455 kc L tJ Mod u l_ I 1kc I tV the t rve si 1 B lkc 1q Dial setting Point of no inter ference as near as 515 kc d idth milar to f1 From step 4 il Con...

Page 6: ...I IEPS 1 2 l I r nd 1 il everal tim It U to get Lil I a st_mt Ia Ad just to get Maximu m d efl ection Neg read ing _ curve as Fig 2 5 Pin I v__ L eru5 of tri 10 7 100 mc mc il il DC VTVI I to Pin 2 of T t ibl Top and bottom of T Ad just to get Maximum d ef lection N g read ing 6 Pin 1 of oLz 5ra5 1 10 7 mc 70 db il il il Top and bottom of T L CL t t 7 I Fin 7 vtt 5nqe of 9 10 7 mc 60 d b il il lt ...

Page 7: ...il r l l t 6l kc lOO mv rms ll n 5tl ri tA Bottom of o Ad just to get Min def lectio Position of VR 3 UI n iaximu m 3 18 kc Trap Coil il 1 t 1B kc 10v t rg Bottom of L_ _ ur Ad just to get l ininiu rn d ef lection L il il b il il c_ _ L I Lr Bottom OI L ta4 il Sub Carrier Circuit I rlultiPlex Generator to Fli Ant enna terininal bO db o1 L9 kc Pilot signal ra k Pin 4 OI rtt joj fT r fllot EO2 ry 50...

Page 8: ... MEGACYCLES CHARACTERISTC Fig 3 A SHRP l J I KC FM sELEcrlvlrY 455 FREQ DEVIATION IN KILOCYCLES Fig l DIAL CORD STRINGING I START 9 END CONNECT ONE END OF DIAL CORD TO SPRING AS SHOWN BELOW STRING AS INDICATED BY ARROW KEEP A MODERATE AMOUNT OF TENSION ON CORD THROUGHOUT STRINGING PROCEDURE TIE END TO SPRING DR IVE SHAF T 4 3 TURNS D 5 PO I NTER ...

Page 9: ...olytic Electrolytic Ceramic lVlylar Ceramic Cerami c Ceramic 0i1 paper Ceramio Cerami c Ceramic Cerami c Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Mica Ceramic Ceramic Ceramic Ceramic Ceramic Mi ca Cerami c Vacant 0i1 paper Ceramic Ceramic Ceramic Cerami c 0i1 paper Ceramic 5oop OOp 0 02 llOOp 20 0 1 0 02 5op 0 05 2OOp 0 05 lOOp 0 01 lOOp 0 01 o o2 0 005 10 7 JOp na ruup 1op 0 005 0 05 0 0c5...

Page 10: ...n Composition Composi tion Composition Composition Composition Carbon Comp sition Carbon Composition Carb on Carb on Composition Carb on Composition Composltion C R network Composition Composition Composition Conposition Composition Composition Composition Conposition Carbon Composition Carbon Composition Composition Composition Composi tion Composition Carbon Composition 0 c02 5op lop 0 01 0 002 ...

Page 11: ...Conposi_tion Composition Conposition Composition Composition Composition Vacant Carb on Carbcn Carbon Carbon Carbon Carbon Carbon lAIi rewound irervound Inlirer vound V irewound Composition Carb on Vacant Cornposition Carbon Carbon 27k a a1 a Lr 5k at a aLt 7 t a lrt 2 2k 20 ohrn 1m _7k I I 1m 5e ohn 4 7k 470 ohn 100 ohm 2 2k aal LLT 2 V 15k a a1 a o Lf 5e ohm 2 2m Al 1_ 6 a_I AAl ztK 100k 47k 58 ...

Page 12: ...R TRANSFOR VMR TUBES AND DIO ES 12 AX7 L2AX7 5lme 71Bg A 5cvrl4 6aQa 5w6 6yt5 5vn6 H i 84 0470 OABl sE 05b t6c 4 s Lrli n p 1rr rr lr i 1 aud io anp phase inv power amp FM RF amp Nuvistor F1VI RF gOSC AFC MIX 1 U amp AIvl RF amp AM OSC MIX tuning ind icator Fl i DET AM DET silicon rect selenium rect S ITCHES Input selector switch lVlocle selector switch Slid e switch Slid e switch Por rrer swi tch...

Page 13: ...sition ComposJ tion Cornposition Composition Composition Composition Composition Composition Composition Composi ti on Composition Carbon Carbon 47 0k 10k 1k 10k 4 7k oat a ar 10k 470 ohm 771 r 220 ohm 100k 47 0k 27Ok 1k 10k 40k CAPAC IfORS 0 05 0 5 2 OOp 41op 2Jo0p 20 0 01 0 01 lOOp 41op 0 1 0 02 0 05 1000p 0 05 0 007 15op 2J0Op 15op 2 OOp l tr J P or noted_ 5 5 uuF lVlylar lVlylar Polyethylene P...

Page 14: ...ower switch Check contact point co Fuse blovtrn or no fuse Replace or i nsert new fuse inserted 2 Fuse blows E n Power transformer Short between transformer wind_1ngs heat up layer bo Defective lnsulation in OPT between primary and secondary co Short between electrocle Mainly in rectifier or j n power in tubes tubes d o Defecti ve electrolytic Mainly filter circuit capacitor 1 Emit s smoke a o sho...

Page 15: ...ti ve capacitor coupling phase compensation circuit 4 Potentio meters ao Noise emanati ng from d efective vol ume control or other variabl e resi sters Hum 1 Tubes Defective tubes parti culary short between electrod es 2 Resi sters D Defective load resister in phase inverter circult on cathod e end 3 Capacitors ao Defective electrolytic capacitors in filter circuit or in de coupling circuit Distor...

Page 16: ...TS F r t T LnsER qIRCUIT POSSIBLE CAUSE NCTE loes not functi on D o Defective tubes b Severed wind ing s ln IF Transformers co Foor contact or defective insulation 1n rotary switch d Burnt out resi ster s in power supply Loose oscillation coil connectionr or poor sold_ering f Poor contact between sockets and_ tube pins g lefective germanium diode s Poor sensitivity ao rF transforners out of alignm...

Page 17: ...lace 6CC7 or other faul ty components in vicinity of 6CG7 c ritt in L9 kc t ans forrner t cr other faulty components I ponents I i 2 Composite c i rcu j t 2 Read jus tment of l Extreme d rop in volume in stereo recepti on l Composite amplifying ci rcuit Faulty 6cc7 or con ponents in its viainity Faulty separation control variable resis tor burntout Severed 18 kc coil 6CCT 25OOpf cathod e capacitor...

Page 18: ...hnicol inquiry Pleose refer to PIIINEER ELEtrTRUNItr trORPORilTION Audio Component Division Ohmori Plont Engineering Deportment Quolity Assuronce Section 218 Ohmori 5 Chome Ohtq ku Tokyo Jopon Kc 50 EotN Prinled th Jcipoh ...

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