Sansui Manual - AMPLIMOS one stage amplifiers, amplificatori
Contents
1. YOLSISTY ONISNS C MDISIS3y 3T8YWYTH NON 2 voi l FONVITIOL 44907 totg Hamog T Cent HOLSISIY AA TVLIW 1 Sep Y gt d z 2 i amp 310 3SIMNSHID SOTINN vu ro po lo to o po ul Lad P Sg PE SYOLSISIY TIY HO PG staypadg UB M Ia MSS 10 Pro y ug E v mett Jee GITANO SOLIDO E OLAS SIDAVZAS a BED y TOYALS m QIIO ug T CAGE ALCA epe DM ss g NAM OZLIAMNO oe Qigi d santa 33d Wed M J PS i Dm v KK nz Cv 7 a A TOBWAS HO L TO igz 4 42371 OTUSTaS 29022 D e 8 AVIS o SO SE gt DAD prosa auo we eapas ST OUERS L PP EM aos s gea R D bz 09 i08 a Ad ien 1ZIGA 0 O d Gbeos2 aL 4071 Us t9 3 Ssaupno zie SD SIT G ron exaserve 200 sol Kata AMONG z 2d02 2 3 SAL NOS 4 Pol 3 Moy asy L y al 10 po ien 4 v 22 drem Kang ado 372 901 200 NUS ke Ayu repay SON unos S 1992 3 old ado 1 1099 HST OE aotuasoiso UNE j HOO 102199 14 245 8 aere ENKE SL Ty S Aerer S ZAS x Poti a X f s R2. L_ 4 Tone Control Volume Loudness Balance d 1 1 I 1 1 I 1 I li I li H I l 1 i H H t I l l 1 1 1 1 1 1 1 1 I 1 I I I I 1 l I 1 1 J 1 1 1 1 i U v AU 517 717 3 ADVANTAGE AND OPERATION OF POWER AMPLIFIER CIRCUITRY SECTION Center DC VR ZDo2 3 1 Advantage There is neccessity not to decrease the phase response till DC range in order to increase the music signal response of extremely low frequency range Therefore this amplifier is employing no capacitors except ones for phase compensa tion and has an almost perfect transient characteristics The first stage FET 2SK97 is a dual FET of even characteris tics and has a large Gm and no leakage current at normal temparature To avoid the influence by temperature drift such as center voltage 0V deviation this FET is used as differential am plifier and operates at cross point which is the optimum point of drain current at about 3mA against the tempera ture drift OTransistors TRO5 and TRO7 the push pull pre driver stage functions as current differential amplifier that the stabilized operation can be obtained In addition the collector cur rent of these transistors is enough high to make linearity excellent Since this Amplifier employs phase advan
3. lt lt lt E Ed do Bl AANAS anna rn 1 E HT ilOet ELLE St EET SE a len TEE wer Ko FII oh nn LH We AM LIE So ES Dui FEES E No UH 12 o z ken zz S a xx ER N Eis o ti d HH BB 3 22 NN EIE 2 8 ES 1 see NN oc aa uL n d Ur Ve on SERB 0ggcc r zz ec oe ec ze ez ER SS 2532558 santa Food UU ano e n 22 T S an p oc E Se 20 5 Gr Fr Z SS5ENS 38523 cc to To 88888 55555 D oo CO cO Y Gi ci C CX ON ki 22 a 3 8333 88888 et c lt lt n ta 5 Z 238223 283338 m sx avg xrega dg s ODODO cada a oj 2 o da ta E D Slonon lt lt lt lt oe O E P szsasizici O foxcon lt lt lt lt lt lt bel cc gt E 5 em 2 XI E z Di 5 E QO i 8 _ 3 55 8 T T 22232 O gt ema Slsleuduso Mem H ELTuUTTa S wend a Blesa wel 3 3 SEESE TI a SASSIS aa e c 55525225 Ba Lil gagagaaa ss o v q p o 23 eo 3 8313353323333 aH DEER ea es Ns 1 ES552553 88 e o 2138583353833 SS A ns S 1222222323 35 SER DRESD RN 200000000 oo A 3 1 3 e wv o E 3 s s ssese222 as E 2 2 i segesgese 25 z cgn n Le e eceee ss Q NS ie EEREFREFRFREFFROGO Os o N gm N N gm LO lt AU 517 717 6 3 F 2673 Tone Control Circuit Board au 517 stock No 7561841 Conductor Side Parts List Parts No Stock No Description Position TRoi 02 0306010 1 25C1222 2 U E 1B TA TRos o4 0306010 25C1222 2 U
4. GREEN BROWN t Board AU 517 Stock No 7571721 it Board L CH AU 717 Stock No A ircui 6 10 F 2721 Driver Circu Conductor Side 6 11 F 2722 Driver C Conductor Side E 2 X mm 3 E een en e e lt lt ao lt nom lt m N ee Dec o D o D N x a O g z E xd X a e 5 SIE 4 46 DER il Z Zz Z Z Ses q E seus s15 3 2 2 3 2022 3 Sa X a 3 exe u ZARZA 288 3 GGGGGaGGG 5 os a LESOSSLL aa rr TRES S 33987548 EE THe ee D a z 22 as 22 2322 22 ESSE gt le 885538 zX8 29 22222 NNDOSGAR BR 992859 e EIS ANTTON as 29028 Ie A A N OONNANXO DO vai os q g S SI2E23332 358 299222 22 ANN NANNAN wx 2 e e 988288838 272 55558 Y ZI N H H aas e a 6 ecos Elo 22322 uv 3 2 z 8 zz sen ge g a ki E e 9 ooO0o0 SH BRB o e D LI cd o oeoe ee p ives S amp a Beat a c N S o am o me q in 3 5 o a e aaa ad onma q 2 a a C NNNANNNAN m NN be o da 2 2 e o 2 q a 5 a H t am RB E N SR oT E sel i m qa 5 a A om a Na gt q a H PES Annas a a oon Qoo aos 2ekgsrceseee gt cuss Q Sog uasa uy o0902989 C aGa cdcd addao NL DanS AAGA z 222222292222 eee sl2ee22 292020000 90099 0 PON z DEN O 0 CO c0 Ww n ag O He KK ONE KH Re e e HHA HM o E 222202282220 22232 8 w SB BBE 525582555 BRAD 3 2 555556686856565 86855 s 2222 EY os sl 2 g 838 us Dor Z 2 289292 d iio
5. PURPLE OS EE Phage XX Model Only EU BS Model Only 7 2 AU 717 Power Supply Section XX EU BS Model Only BLUE 120V Pi PURPLE 1007 FOA 100 120Y SA 220 240V YELLOW QV Cros 0 07 100 120V a AC 220 240V z 71 Y 3 07 06 os On 220 2401 bech Eed AC 50 604 DE BE H 39V GRAY WHITEI BLACK EU Model Only Oa OV d BS Model Only 39V PURPLE y YELLOW OV ORANGE 20V 1 RED 7007 WHE ov Page BROWN XX Model Only EU BS Model Only NOTE AS to U L C S A B S ES and XX marked in the Parts Lists note the followings U L C S A Approved parts used in the unit which is applicable to the U S and Canada under safety standard BS 22 22 22 Approved parts used in the unit which is applicable to British under safety reguirement EU Approved parts used in the unit which is applicable to Sweeden Denmark Norway Finland West Germany and Switzerland under safety reguirement AN Parts used in the unit which is applicable to other countries excepting mentioned above X In parts lists parts with no above mark in of Description are all the same as XX marked parts D p p 11
6. run the unit for more than 3 minutes after 2 Room Temperature the power is switched on STEP SUBJECT EQUIPMENT MEASURE OUTPUT ADJUST ADJUST FOR CONDITION 1 DC ON DC Volt Meter Speaker Terminal F 2721 DC 0V 5mV o Set VROT and VRO2 to center L CH VRO1 VRO2 position i o Then for the purpose of pro i the accurate adjust 2 DC 0V Same as above Same as above F 2722 DC OV 5mV ment set the voltage to O volt R CH VRO1 VRO2 by VRO1 first and VRO2 next 3 Bias Current Same as above TP Terminal F 2721 DC 20mV x1mV o By turning VRO3 counterclock L CH of F 2721 VRO3 wise the bias current is de creased gradually 4 Bias Current Same as above TP Terminal F 2722 DC 20mV 1mV R CH of F 272 VRO3 AU 517 717 5 OTHER PARTS 5 1 Top View Speaker Terminal 8P Input Terminal lt AU 517 gt Power Cord C0701 C0703 TR 703 C703 TR701 1701 VRo2 C701 VRo VRo3 C704 T702 VRo C702 d 03 TR702 TR704 R701 R702 lt AU 717 Speaker Terminal 8P Input Terminal AP Input Terminal ER round Terminal Power Cord C0701 C0703 TR703 C TR701 703 T701 C701 T702 C702 TR702 TR704 R701 R702 Parts List lt AU 517 717 gt Parts No Stock No Description Parts No Stock No Description Parts No Stock No Description Cros 0659801 0 014F 150V MC 2411240 Voltage Selector SW EU BS AU 717 Only C707 714 0
7. 0303281 2 258526 D E 0306270 1 0300710 1 0306270 1 0300710 1 TRot 02 TRos 04 TRos o6 TRo7 08 TRo gt 10 TRii 12 TReo TRe02 TRso3 25A733 P Q 0305951 2 25C945 Q P 0305951 2 25C945 Q P 0300510 t TReos 10D2 152227 10D2 152227 10D2 152227 10D2 152227 2 250945 Q 55 3 SS 3R 0305951 0311290 0311300 0310350 0310350 0310350 0310350 TReos TR606 TReoz Dor 02 Dos 04 Dos 06 Dor 08 Do9 10 Du 12 10 AU 517 717 7 SCHEMATIC DIAGRAM 7 1 AU 517 Power Supply Section XX EU BS Model Only t Anda do gor de Gort tacnniachon Forti Pain Binden E suites d am liorations ventuelles Design and speciflcations subject to change without notice for improvement a BLUE 1 WHITE 420V H 7 L De 20V FUERE 100V Foo ang 3 N asar BLUE PURPLE 3 54 220 240V YELLOW OV We 1260 T Cops 2 07 Stata v 35 57 ORANGE 1201 E H PURPLE GRAY 1 220V av i 35 5V RED 100V BLUE 1 oy oor ac 100 70 ow AC 220 24ov BROWN HA TERWW PURPLE Y 220 40V BROWN 50Hz Cros 0 0 ut Pier BLACK Bi Cms 007 e 02 H E mU 50 60 la 20 4 i 1 2209 LP RPLE PURPLE 3l PE PURPLE EU Model Only Sel 2404 EM Los 1 Foz ov BS Model 0 ur os YELLOW odel RY Sen CRIE PURE NO er SCH WHITE N RED 100 WHITE ov m Seu WHITE BLACK 1 1 1 H
8. M MEC o e a wm ap o 55833 D o a s 5 2 8ESSSESS 5000 5 da 0 Aa0000000 NNNN o a Bao a E 3 2 aa lt lt lt ama Elos a assa a gt 9 mom mwnmm Adoos o a we e OU CQ GN GO NNA e WN S iIi I i O T oo e S FR E AA O Oro O o ost 8 Vi IR CONTINUED PROTECTION FIRE HAZARD ONLY WITH SAME e 5 8 DN d 3 2 o y TA E gt S cLecegVcece ERER j cet ANAN o RR CARONA JANA v 9 200 9 99 2222 a 2 SSI ON LIO we vw OS OQ Fe P EE oo C CL o ei CO ei wu aQdOO0O0 x0UUno oaQ0aoaooao L AHAAHNHPHAH 200950900 ke NNNNANANN AMOR 7717 S asas Y El olczic2zz3z 22222228 N 3 oam om mom aaa aaa DD x 1 c Q ee 10 OO HHH 10 0 0 0 0 E ee ue mm amado Oo 9 183222838299 2 2I2222 Lla E 2222009000 Soa o 151295550969 5356006602590 E Q a N vl l335 nnzsso 33882272 un t 22828228882 38838333 zee r1 t FErrRrE H odg0000o00a Vi Ala Led N gm 19 2 lt 10000pF 5007 C C m m N q LO lt 6 13 F 2663 Power Supply amp Protector Circuit Board Au 717 Stock No 7502321 Conductor Side x S GE EE E SS Ss pr cope CA e mm 3 A ES a Pg P 3 3 a Ei e E po 5 o c Eo t NOED P nn E ION AGAI O e ao y ee ES O nn oo 0 case Parts List Description Position Parte No Stock No Description Position Parts No Stock No Position Description Stock No Parts No 1
9. 473D E x x 3 I Sa sida 4447 MSL B3 B Eis xS Las TSS SEES IH E Si SL S C 21 GE S SP bes t S m TReor E L 15 5 2 9 C945 P Q Deoa VDI2I2 Ecos con u SOV Te 2SA733 P 0 ZDsor EQAOI O6R 25 rr A Rogz 220 2 S7025 Ganze S720 BS CURRENT Aen A TP to TP 20m y SPEAKERS EECH PHONES DO m vi 100 mW ER B0 AT 100052 2SA733 2SA750 2SC945 2501222 2SC1400 ex 2SA726 28A847 28A906 25A899 2501904 N EQAO1 06R EQB01 22 RD6 2E RD13E n oo oo T Ne id SS AU 517 717 8 OPERATION OF PROTECTOR CIRCUIT This protector circuit contains two functions at abnormal condition a speaker protector circuit against DC voltage appearing at output and speaker protector circuit against over current POWER OUTPUT 27 ZDso2 28 Co 0047 R37 102 RDe 2eE goer teo e e P 7 ei ON Cop Rag 2 Dos 06 13 14 32 D603 605 606 607 2473D 7 LEDagr POWER amp PROTCTOR INDICATOR x x e S e E 1 i Cem o H H 3 Y RE 3 Sp A 2 x ec LPs m ols amp SI S E TR606 EN 7R607 Deen aen 2SC945 P Q Deo VDI2I2 Cs06 507 474 50V Espa 2SA733 P Q ZDeo EQAOI O6R 29 430 _ A Speaker Protection Circuit against DC C Operation of astable multivibrator voltage appearing at output 1 When contr
10. 5kHz Tone selector 3 6kHz SUBSONIC FILTER 3 dB 16 Hz 6dB oct HIGH FILTER 3dB 10 kHz 6dB oct MUTING 20dB EN 9 dB at 50 Hz 7dB at 10kHz Power requirements Power voltage 100 120 220 240V 50 60 Hz 120V Usable 110 130V 60Hz for U S A amp Canada only Power consumption Maximum consumption 735 watts Rated consumption 425 watts 500 VA Dimentions 430 mm 16 15 16 W 168 mm 6 5 8 H 389 mm 15 3 8 D Weight 17 8 kg 39 2 lbs net 19 8 kg 43 7 lbs packed 2 BLOCK DIAGRAM z 3 u ER nw 22 lt So i dd ual Po TH TO 1 5 E El j E mE 1 3 mem i amp rr 1 oo D Dow EEN a 1 NN 1 SRI 2 Be E i ue 5 1 1 a L H e 4 E 2 3 59 E a Ir Ir mnm l i I 2 Ir s D I D li sz zz i 1 l Es N 1 Es i i MEM ER H EE I IH az l ii I t 1 I l E 1 d Sli d l H i 8 e d l 2 h ada 4 ya i I 1 E li TI n a d vl 1 H el L H 4 Si d 1 n ut Pr I Ir a 2 luo Ed Ira lt 2 SI 3 Uv Mi SI um S o Neo 2 E Io Si 3 e hu L 1 ZS E E n H 5 j 5 I 2 El i 3 E j j I j m N EI NI ul 2 ET lt Zi i 21 el Bi i ul
11. 602109 1 04F 100V MC 2230052 Ground Terminal TR701 702 0305840 2 2SCI116 RO 7 Transistor i R701 702 0202221 2200 2W NAR AU 517 Only TRro3 704 0300520 2 25A747 RO Y COr01 703 2450060 AC Outlet XX TRz01 702 0306450 2 25C1403AR O Transistor Cro1 704 0559520 150004F 63V EC 5066280 AC Outlet EU BS TR703 704 0300830 2 25A745A R O Y Tz01 702 4002580 Power Transformer XX 2290190 Speaker Terminal Cz01 704 0559518 120004F 63V EC 4002584 Power Transformer EU BS 3800010 P Cord XX 4002582 Power Transf UL CSA 3800190 Powe Cord EU Tro1 702 4002590 Power Transformer XX 002 ower ron amer 4002594 Power Transformer EU BS Fzoi 0432290 SA 125V 3800320 Power Cord BS Power Fuse XX 4002592 Power Transformer UL CSA 0434060 10A 250V 2300060 Power Fuse Holder XX 0435150 3 15A Power Fuse EU BS 2300090 Power Fuse Holder EU BS F701 0432270 3 5A ll Power Fuse XX 2410091 Voltage Selector Plug XX 0432500 7A 125V 2410830 Voltage Selector Socket XX 0435140 2 5A Power Fuse EU BS AU 517 717 5 2 Front View lt AU 717 gt LS 59 C3 BIN AEN ES re e A OY VS AD 5 j uu ME OX NM NY VA V V Parts List lt AU 517 717 gt Parts No Stock No Description Parts No Stock No Description Parts No Stock No Description 1 5318850 N 7 Type Knob 5326620 Push Switch Knob AU 717 Only 1015170 1 250kQ MN X 2 Ba
12. A 3A 1A 3A 2B 1A 3A 1A 3A 18 3B 2B 2A 500v CC 100WV M C 2W NR IW HIE 10000pF 10000pF 0 33 HF IT 3 30 1002 1000 100 3900 2740 0655103 0655103 0602338 0202332 0202332 0210101 0210101 0202100 0202391 d Co 02 Cos 04 60 Rot 02 Ros 04 Ros 06 Ris 16 R37 38 Reo Reoz c 1A 1A 1B 3B TB 1B 2A 2A 28 Diode VD1212 Varistor 10D2 152227 1002 152227 152473D 1 1 1 1 1 0310350 0310350 0311160 0340120 0311160 0311160 Denn D602 3 Deo 18 38 2B 18 38 2B 1B 38 2B 2B 2A 2A Transistor 2B 2B 2B 2W NR Ww NR SA 125Y Power fuse UL CSA 7A 125V AC fuse XX SA T AC fuse EU BS Fuse Holder XX 0202272 0202272 2B Deos 2A 2A B B 1 1 2A 2A 1A 3A 1A 38 2 70 470 Fuse Holder EU BS Relay Relay 0210472 1150250 1150370 0432290 0432500 0435170 2310220 2310230 Rana Rei7 RLeot Fo 02 Fo1 04 2B 2B 2B 2A 1B 3B 2A 1A l Diode Varistor Zener Diode 1824730 152473D 152473D 10D1 152226 VD1212 vD1212 RD 13E B EQA01 06R RD 6 2E B 0311160 0310340 0340120 0340120 0316310 0315760 0316390 Deos Dee Dog Deos D os Dag ZDoi o2 ZDen ZDem 1A 3A 1A 3A 1A 3A TA 3A 1A 3A 1A 3A 28C1708 F G 25A847 F G 0305951 2 2SC945 Q P 0305951 2 28C945 Q P 25A847 1KF G 0305951 2 25C945 Q P 25C1708 E U 0308451 2 25D356 D E
13. AU 517 717 SERVICE MANUAL AU 517 717 1 SPCIFICATIONS AU 717 Power output Min RMS both channels driven from 20 to 20 000 Hz with no more than 0 02596 total harmonic distortion 85 watts per channel into 8 ohms Load impedance 8 ohms Power bandwidth 20 to 20 000 Hz at or below rated min RMS power output and total harmonic distortion Total harmonic distortion POWER AMP IN less than 0 02596 at or below rated min RMS power output Intermodulation distortion 70 Hz 7 kHz 4 1 SMPTE method ee i ho hi hh rane less than 0 02596 Frequency response at 1 watt POWER AMP IN mfra mta 0 to 200 000 Hz 0d8 3dB RIAA curve deviation PHONO 02dB 0 2dB l 20 to 20 000 Hz Damping factor approximately 60 at 8 ohms load Input sensitivity and impedance 1 kHz for rated power output PHONO 2 5 mV 47 kilohms Max input capability 350 mV at 1 KHz less than 0 01 total harmonic distortion AUX TAPE 150mV 47 kilohms Output level 1 000 Hz TAPE REC pinjack 150 mV 47 kilohms PRE OUT 1 V 47 kilohms Channel separation 1 kHz at rated power output PHONO lle better than GO dB AUX coco better than 65dB Hum and noise short lt ircuit A network PHONO 78dB AUX Lo 100dB Controls BASS ooo ooo ooo 10dB 50 Hz Tone selector 200 400 Hz TREBLE 10dB 1
14. D 2420650 4 Pins 2420470 5 Pins 2420480 6 Pins 2420490 NOTE Since stock number of famale connectors type B with wires are not Type D 2 pins Type 6 pins Type F 2 6 pins shown in each parts list of Complete circuit board please refer to the above parts list when ordering the connector Abbreviations Carbon Resistor E C Electrolytic Capacitor Solid Resistor BP E C Bi Polar Electrolytic Cement Resistor Capacitor Metal Film c c Ceramic Capacitor Resistor Mi C Mica Capacitor Fusing Resistor O C Oil Capacitor Non Inflammable P C Polystyrene Capacitor Resistor T C Tantalum Capacitor Mylar Capacitor E e 2 lt lt vo 2857 PII ages Sn en PT lt aa vic E F o _ 25325 o Era pus wu a an ies me a 2 q E ANS 258826 a E KSE c E El e ctoc E El 5 u c E Ss gis a amp onkEZZ 2j 2 5 z ZS z gt SS EE 2 t wv or e 826035 G E X RU gt S a s D E xo lt QAO E r 208 a Vn e 5 voc lt sSP Sc Ga 80 M sez oo 55 amp sa s a La n 7259 amp Es amp 55552 oc gt Sloe ooo o Ere v Sigs Na ION Ea SIS x S89 JFS z 9 6 33 838 3 S x S 99 ERZ gt 9022509 8 557 z ceso Bos sen S SES E ii es 6 o no2zda I e ox z ies n mn iz d Ms e SS Em 1153338 5 Ela O Z SS Gc GO 3 g di q a KK a SIS AL a lt ale cm in POP a a PEN I e LEEN E omes E Bloaxx lt lt
15. E Transistor 1B 1A TRos 06 0300890 1 2SA750 3 E U en 1g pA TRo7 08 0306010 1 25C1222 2 U E Do e 0340120 VD1212 Varistor 18 28 Cono 0610361 360pF 50V P C 2A Cos 06 0602338 0 334F 100V M C VRoi 1015170 1 250kQ MN X2 Balance VR 2A So 1171120 Loudness Lever Switch 2A B Soz 1171150 Tone Defeat Lever Switch 28 Sos 1171120 Subsonic Filter Lever Switch 28 2410570 Sp Pin Ass y Type D 2410920 3P Pin Ass y Type E 6 4 F 2674 Bass amp Treble Volume Circuit Board AU 517 stock No 7561861 Conductor Side Parts List Parts No Stock No Description VRor o2 1015230 1 100k 1 C x2 Treble Bass Volume 6 5 F 2670 Pre Main Switch Circuit Board AUS Stock No 7595211 Conductor Side Parts List Parts No Stock No Description Sor 1110290 PRE MAIN Slide Switch 2200500 4P Input terminal 6 6 F 2667 Tape Play Circuit Board 4031 Soc No 7395181 Conductor Side Parts List gt Parts No Stock No Description Sor 1131400 Tape Push Switch 2410700 6P Pin Ass y Type F 2410920 3P Pin Ass y Type E AU 517 717 6 7 F 2720 Tone Control Circuit Board au 717 stock No 7561941 Conductor Side er ERN F IET d e Ss epes EE 2 me nn um E Parts List Parts No Stock No Description Position Parts No Stock No Description Position Parts No Stock No Description Position TRo1 02 0360370 2 25A798 F G H 1B 1A Da o 0340120 VD1212 Varis
16. ES o5 02 Guo POR NV te M E 3 Side ds PE a s E 2 2409105 suma me copr a Aie ad Ni roto QE Fre 4 E i 3 A001 2V Ur Nilo amp S8 S 8 una r S T x wo xe gt L 0u0yd 7 3etas n E 7 i Z ouoyd Frae posta 40309709 de 908 T EJ 2 N TOY FIST AE Ag TePan USO IN Eis A vie B Es UE 490 AT ale E a IE as u Bim 3 gt a eo 32 90H o H ES T ss 3 20001 Soy t v 8 n E e M 2372 H di 200 5 N eu SD ru E 4 3 0968S2 u y a eepase 8492 4 56 E T z nl E Nib 554 GH ag 1 169 Qoo 0021 agLvzst y i xe uy p 8292 3 art ot LL S C 2992 3 A ts z ZIZIGA af x zo Tee gt Haz KATE i 7 t 1 H i zo j PE 4 as f 1 o 1 H TS zaol 3 i TOT E Zen to D ud Lulli g Zo Je 1 E o I N 1 ONOHd N nS e TS Z ONOKE sp AZ 7 Wu AED xy 71 LHOIY yeor TOSZ 205 i i ig Is T VSPLVSZ T S E 2 55 10 o DEE Dd 22 10 9803
17. SATSO Dor Ren 470 AM x bd Laa JOP en IK 1 rm Rag IK Wr Rag82 Ran 62 Cm 0 047 d 680 Re Cor 1202 Ky 15K Ron ISK P 3 S gt 3 d Wy Res 2IK S it Cos Cor 0 0015 Ry IM Wr Ros IM RIGHT PHONO 2 PHONO 1 0 0082 Muy IK VRora 100K 03 a TUNER FET 2SK97 TRgno2 2SCI400 E U 1 793 04 2SA750 E U Dor 02 04 1S2473D 2721 m 25A899 B 7 amp 2SC945 Toros eS CI904 B V 7Ros 2SC945 P 75 2SAB99 B V pe 290382 e 288537 Ry LOK Rig LEK Do AA B come coa umm Si nup Ros 22K 2 TS Meg aan Los Re TK Rog DER AUK Selector F 2723 Tape Copy F 2728 Tape Play F 92667 Muting F 2664 Loudness F 2864 Tone F 2664 Subsonic Filter F 2664 High Fil
18. Sie 7 66882 We SCH 0 T D i 2 D Sy af 883 L ess 1 sm J vo T T deb Tass KAN 2m e 6000 7 s 1 a Hi ig aos Auoool 8 YOSI eng ed jo M MUSSEN is P penes ig fe a S 3 Hi N L FISS s 3 A 079 Sa 5 dy gt si Fast ERTE E I 3 gt O ut E E 8 d E x D E M Son 92 amp E 2 S x E a SI 8 enen eso 4091 59 aq ay S E 8 i 2 Le SL i A e IP H EE ES Pue Bi ESI ES e EES de SOLTOSZ 5 sf s 3 S06vse SS E LV8VSc En 3 Se E EE 1 0 83 rt a S E E socom vsbevsz 4 I E 1 S S Memes add TEN C271 T m x ES 1 ONOHd ill OY ey res M 3 jiez rk veorlose ET Kiel c Zug E2255 E gt gt SD u 77 q Lad La o M p X D TINNVHO 1437 ES ay Ecke S Mx 9 3 922vs2 9 vasec at zu i Wye Ir gt GG O0YTOSE 3395 Ey 1 g S amp o 906vs2 E W xl egase u as n 3 082vs2 WEI at 8 Zen 4 e t 10 LOPO 0 zo ro CS o BRENES wiiayzecase L AB POGIOSE n alogzvse nu We i 492 3 na M3000199 g222 3 6992 3 RETE OASES Saa n 3 00tI5S2 x _ _ 2 ESELY ZIE NV CZ LIYLUSNV LILLLSNV 7 4 AU 717 LEFT CHANNEL PHONG 2 E PRONG J SE 723 8 rS H Carla 50V 2SA726 F G 33K Rar Reg 5 6K AU 517 717 EA DO A To o B TeTo E To r 1 e d 5 Dong VDISIS Ta 2SCIAOO E E U al D n e 2
19. cer circuits C06 C08 C15 R29 C16 and R30 which have not been fre quently used to compensate the phase characteristics on high frequency range and is also made to have enough 4 ADJUSTMENTS 4 1 Driver Circuit Board Adjnstments Bias Current VR current on each stage to increase the through rate the performance on high frequency range is conspicuously improved STo avoid the voltage deviation regulated power supply circuit composed of ZD01 ZDO2 is employed 3 2 Operation The use of differential amplification at first stage dual FET FETO1 FETO2 and connection of the FET to the differential amplifier composed of TRO1 TRO2 make possible to obtain enough gain and remarkable low distortion The output signals of TRO1 and TRO2 are untiphase The output signal of TRO2 adds to TRO5 on the other hand the output phase of TRO1 is inverted by TRO3 then it becomes input signal of TRO4 and TRO7 which are cascoded connection The output signals at TRO5 and TRO7 are inphase that the op eration of this stage is push pull drive and current differential amplification The power amplifier of the final stage is com posed of SEPP Single Ended Push Pull symmetry comple mentary in 3 stage darlington connection type TRO9 and TR10 are composing current limiter circuit to protect power transistor from break down by overload See the picture of top view on page 3 Note 1 Master Volume Minimum 3 For adjustment
20. e RE E 2 UG 885 5 a 39 a 5 e 3 3 a 2G 22 0Z Zz 0 o Zo oo o z z 2 z 2 q oo T o E D SUD Deen c Vo 2 2 y 5 5 ou ee San gt et 3 gt gt 2223223 SZ SS 255 2 3 2 bei DEET a N SS o 2 Ze NM N q NN gt gt x oS N ES DlI essgit s gt quc E eee de a OA 2 SSSSqnHUSSHMann 020009 NN EEK GaAgacgacgagagagaa Da aaaa acaaca FBZS Y LL LLKS E PILL Reset tasesa LAGE 222 ZL ER 5599856508995 5 FIFY 29 Sa nir BRO G A 5 8 aros EEEEFEKEEEKEEEGEEEEE 85 Ana sc o 88 S 27 GEES KEE ENE EEGEN ElSsose2iiddizdzc ed 22229828 22 v SAN Dee a ee eme o soa angge anneo an An OO O ZE wm SD cO 0 0 RR OO loop tt 6 att 0 0 O QN A E oc ONO SO Nm O0 nM x euer OO x det TA Nam 2200 OH ei ei 0 ow ox 0 o WX d 0 0 Ei A HOD LONGO C N Ft o 9 o9 oO o 090 ago 8 nO 99 ooo le Di EI ee en ei o o m a udo wv RO GE OO See SS oe e eege E gt 22 ANY Onmoo o0 oooomn0mooo ee EE KEE bi 0000000000002 o eo oo OM 00930 ANNANN CP QU OL He N 000 co Na cer NN nin SS 9999999660500 O 599599 00 2000 0990000550095 098 9890980 Y 0000 ooooo UT S S Fi o o n S CTii E322222828E22 SB sans BB sen zeeseegsanece2es ss EES Becas Roses 4 c c OO C OO m oc X oc x ux E soa 9 OO ass 33555385 59919 SB zx 2255 22855 DI EI EE FE U 646 NN 000E amp Xccccxxcccc S gt gt gt STEE SCHEER els 2 2 a lt lt 7571731 7571751 517 Stock No 717 Stock No BLACK AU AU R ch
21. lance Volume 10 sera Knob Guide 6 5326611 Lever Switch Knob 25 P 5 1131400 Push Switch Tape Play 1171130 Lever Switch Loudnes 2 5318840 K 7 Type Knob 11 2430290 Head Phone Jack 7 5326611 Lever Switch Knob 1015230 1 100kQ C x2 Treble Bass Volume _ 12 5006670 Bonnet 1171130 Lever Switch Subsonic Filter L 25 P 7 13 5336600 Sansui Badge 15 5518860 H 7 Type Knob 3 5318840 K 7 Type Knob 14 MA Ji Emitted Diode 1090280 180kQ x 2 5kQ x 2 Volume L 25 P 9 1101780 1 Rotary Switch Speakers eg 16 5326611 Lever Switch Knob 4 5318840 K 7 Type Knob AU 517 Only 1171120 Lever Switch Muting 1190410 Rotary Switch Tape Copy 5326611 Lever Switch Knob 17 5326611 Lever Switch Knob 5 5318830 1 7 Type Knob f 171120 Lever Switch Loudnes 1171130 Lever Switch High Filter 1190410 Rotary Switch Input Selector 5326611 Lever Switch Knob 5326620 Push Switch Knob 8 5326611 Lever Switch Knob 7 on Lever Switch Subsonic Filter 18 5286721 Knob Guide 1171150 Lever Switch Tone Defeat 15 5318860 H 7 Type Knob 1131400 Push Switch Turn Over 5326611 Lever Switch Knob 1090250 150kQ x 2 Volume L 25 P 7 19 7007570 Front Panel Ass y 9 1171630 Lever Switch Power 19 7007580 Front Panel Ass y 20 5058730 Bottom Plate 1171610 Lever Switch Power EU BS 20 5058740 Bottom Plate 21 0319110 Light Emitted Diode D O Figures Connectors amp Pin Ass y Connectors Pin Ass y Type A 3 10 pins Type B 2 6 pins Stock No Type A 3 10 pins 2 Pins 2420450 3 Pins 2420460 3 Pins RE
22. ol bias voltage is not supplied to the base of 1 When an abnormal negative voltage appears at output TR607 in abnormal condition TR606 and TR607 on astable TR601 turns off TR602 turns on and TR603 turns off so that multivibrator repeat turning switching on and off alter the relay RL601 keeps off in order to protect loudspeakers nately each other by charging and discharging of capacitors from break down C606 amp C607 resultly the LED701 as protector indicator 2 While the relay RL601 keeps OFF zero voltage center volt continues flikering age controlling TR607 through D607 will increase resultly 2 When the relay RL601 is turned on base voltage of TR607 the LED701 as protector indicator starts flickering becomes zero volt through D607 and TR606 becomes ON 3 When abnormal positive voltage appears at output the resultly LED701 as power indicator lights up voltage is supplied to TR602 directly and the operation of the protector circuit is same as above mentioned 1 B Speaker Protection Circuit against abnormal over current 1 At the moment when abnormal excessive current flows into power transistors a transistor TRO9 detecting ex cessive over current on power stage becomes ON 2 Then DC voltage at decreases resulfly TR604 turns on and positive certain voltage appears at 3 As mentioned above when TR602 turns on the relay RL601 keeps OFF a certain positive voltage at turns on TR605 too
23. resultly collector voltage of TR605 decreases and its col lector voltage keeps a certain voltage at simultaneously 4 By keeping a certain DC voltage at the LED701 as pro tector indicator continues flikering even though all cir cuits work completely 14 AU 517 717
24. ter F 2884 13 Tmn 288526 D E T 06 0 pe SCA OB F G 2000 RDI3E B 7 0 2SD356 D E 28A847 F G 5 1S2473D Kos TRe Midi ER Fan 562 oC ES C29 33P Rig HEEM Rar 478 Cr 470 EN F so Bos L8K E SS Req 18K WHITE BLACK PT api UL CSA Model Only PURPLE 0 DIRECT COUPLED CAPACITOR COUPLE CO DIR AC 100Y 50 60 Hz JAPAN MODEL ONLY CSA MODEL ONLY Fay dA 2502 or Foo MAA Tr ALL RESISTORS a WATTS UNLESS OTHERWISE NOTED si METAL FILM RESISTOR 1 Cafe Cos TOLERANCE 1 X2 NON FLAMABLE RESISTOR 3 FUSING RESISTOR y ULSA PURPLE le 39V GRAY 04 ER PURPLE 06 DI SN SM OA u pa Ree Pup 39V amp ZDsoz P RDE 1 E D6 2E if TReos m e 8 K ES els 8 S Ta E x Dos 06 13 14 x SY se D603 605 06 607 B s E x 1S2
25. tor 1C 1A Sol 1171130 Muting SW 2A TRo3 04 0300470 1 25A726 m F G 1C 1A Co o 0620361 360pF 50V P C 2B 502 1171130 Loudness SW 2B TRos os 0306290 1 25C1400 1 E U iC 1A Co oe 0602338 0 33uF 100WV M C 2A Sos 1171150 Tone Defeat SW 2c TRoz 08 0300890 1 2SA750 3 E U Transistor 1C 1A Co9 10 0620121 120pF 50V P C 1B 1A Soa 1171130 Subsonik Filter SW 2C TRos 0 0306290 1 25C140011 E U 1 1A R37 38 0191820 a MW ER 1C 1B Sos 1171130 High Filter SW 28 TRi1 12 0306290 3 25C1400 1 E U 1C 1A Ras 40 0191820 320 Ut 1C 1A 2410570 SP Pin Ass y Type D TR 14 0300890 1 25A750 3 E U IC 1A VRoi 1015170 1 250k Q MN X 2 Balance VR 2A 2410920 3P Pin Ass y Type E 6 8 F 2665 Bass amp Treble Volume Circuit Board Au 717 stock No 7561851 Parts List Parts No Stock No Description Conductor Side VRo1 02 1015230 1 100kQ C x2 Treble Bass Volume 6 9 F 2666 Turn Over Switch Circuit Board Au 717 stock no 7561871 Conductor Side Parts List Parts No Stock No Description Soi 1131410 Turn Over Push SW t LI a e a m 2 j aooonvou uvuv QUO 0 nn anu 1n000000UVAVUOUJU a aaa agaa agana 3 0 0 0 0 oe d Di c e men x TO FAN gg gees eg og eg sg sg TOOT e d e MANT a e a E E 4 m ma lt lt lt lt a LLLLLLL Nmn og lt lt lt lt 8 lt lt LALL To Beene eee NN Zar a Ar NNR quam a q NK NNGZN anne lt ar ac Di L gt E Y o El 3 Mou QM o A d E
Download Pdf Manuals
Related Search