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Pioneer CT-5, Service Manual

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Summary of Contents for CT-5

Page 1: ...rvice manual For the mechanism circuit descriptions pleæereferto the supplement of modelCT 5service manual ARP 002 Cemanueld instructionserefèreau modederéglaç enfrançais Estemanualdeservicio tratadel métododeajusteescritoenespaffol MODELCT 5COMES IN SIX VERSIONS DISTINGUISHED AS FOLLOWS Type Volatge Remarks KU 120Vonly U S A model KC 120V only Canadamodel HE 22OY and 24OV switchable Europe model ...

Page 2: ...60mV 8O 6mmdiam jack Subfunctions o MS Music Selectl system o REC muting switch o Dolby NR B C system B C ON OFF with LED indicarer tamo o LED peak meter o ALC Aulo matic levelcontrol o One touch recording system Stand by mechanism with unattended recording Auto tape seleclor NORM CrO METAL Full automatic stoDmechanism Noise Beduclion System manufactured under license from Dolby Laboratories Licen...

Page 3: ... mode Depress this swilch againto resumerecording Recordingcan be started This enables unrecorded blanks 10 be created between programs for conven ient play functions MusicSearch t The word Oolby and 0g are tr LicensingCorporation uustc sEARCH switch Set to ON when automaticallv Normally this switch is kept at the trueUflevel controls Theæ are used to adiust the input with the ALC switch at rhe OF...

Page 4: ...n replacing be sure to use parts of identical designation o For your Parts Stoch Control the fast moving items are indicated with the marhs and GENERALLY MOVES FASTER THAN i This classification shall be adjusted by each distributor because it depends on model number temperature humidity etc Function knob E RAC 176 Knob E RAC 194 Push knob B RAC I74 Knob INPUTRl RAA 364 Knob MODE RAA 365 Pushknob E...

Page 5: ...ASSEMBLY Door Assembly Removal Doorassembly Do not apply unnecessaryforce to hoohs since this may Dolbyassembly Hook B S panelR pJffi panel PanelR Indicator panel IndicatorFânél Removal FiS g t Disassembly 1 ...

Page 6: ...val Gently pushthe hooks C of the escutcheon Door AssemblyRemoval 1 Depressthe EJECT button and open the cas setteholder 2 Pull up the door assembly andremoveit Indicatorassembly Mechanism AssemblyRemoval 1 Remove the counterbelt 2 Bemovethe six screws Dolby AsæmblyRemoval Removethe two screws IndicatorAssembly Removal Removethe hooksD andthe screw FunctionSwitchRemoval Removethe hooksE andthe scr...

Page 7: ...chassis A î t A J t 32 33 34 35 6 7 L 9 10 36 3 7 38 39 A 40 t 4 1 42 43 44 4 5 46 4 7 48 49 50 5 1 52 53 54 55 REC 369 RSA448 RE B4 5 7 Foot assembly Sensorassembly Poraerswitch Counter bell Volume 1 1 12 13 14 t 5 1 6 1 7 1 8 19 20 RWX 528 RNL 341 RN L 34O RX8 600 Indicalor assembly Meter holder Indicator panel Door assembly RWX 527 Jack assemblv 26 27 24 29 3 0 RAC 193 RAC 176 RAC 175 RAA 364 R...

Page 8: ...r 120V RTT 237 Motor assembly RXM O76 Plungersolenoid R RXP 101 Mechanism assembly RYM 122 l Plunger solenoid F RXP lOO Rear PanelView Panelhinge RN L 325 Terminal LINE RKB 018 Dotby assembly RWX 550 Strain reliel REC 376 A AC cord RDGO22 RDG 030 ...

Page 9: ...2 r o g F o A a t a z l o l R 97 t D o ...

Page 10: ...6 5 4 r05 52 74 53 95 5 ...

Page 11: ...2 o 6 I U A a ki D o 1 Botary switch nut and o sill ...

Page 12: ...6 35 4 163 rr I 54 6l c D I X a 4 l ...

Page 13: ...2 10 IC603 rC6O7 TC6Or Q4Ol 11 DOLBY AsCy RWX 55O IC611 1C6rO 1612 1609 11 0 5 0 1 I C 5 0 6 I C 6 0 2 I C 6 0 a I C 6 V R 4 O I R O I P vR4O3 VR4O2 B o 403 405 4A7 503 505 507 1K34aor1K6oa o oago t q_ D 12 10 ...

Page 14: ...I 7 i l R N À SENSORAss y _ DETECTOR I lÀDICATOR Ass y RWX 528 ...

Page 15: ...tQ3022 1 9 lRs l 2 r lirt ôa i 3 r n r i t À i À TO tl rlr l rl l vt0l ù 2 i l î q 3 r a r i f c Æ rc ___a lgT1 j 13 5 Qré 1 ll1 _ i i 2 C L i o 2 t 9 l ...

Page 16: ...Q7O1 06 2SC174OLNor 2SC18t5 152473 or uslo4o BOARD 2 CONNECTION DIAGRAM A I B r VOLUME Ass y FUNCÎON SWITCHAss y ...

Page 17: ... 107 WA17D032DO25 108 PMA26PO40FMC 109 W421D040D025 10 R8F 051 Screw Screw Screw Washer Screw Washer Washer Screw Washer Washer 111 RBF 050 Washer 112 PMA26PO40FMC Screw 6 PACKING PartsList Mark No Part No 1 RHA 236 2 RHG 436 3 RRB 1 51 4 RHX O31 s RHC l 19 6 RDE 010 Pad Packingcase Operating instructions Sheet C Polyethylenepaper Connection cord ...

Page 18: ...y Capstan belt Flywheel spring PMS solenoid Door stopper Side plate R assembly Connection plate Detector assemblY Slide switch Mount plate Side arm R assemblY Eject lever Stopper lever Stopper collar Washer Screw Screw Screw Screw Screw Washer Screw 11 RBH 795 12 RNL 057 13 RX8 405 14 15 RNK 994 RAH 392 Câssette plate 66 67 68 69 70 7 1 72 73 74 75 RXB OO RXP Og2 FNF 895 RBH 778 RNL O42 RE8 457 RN...

Page 19: ...E R S 7 0 1 A L C O N _ O F F oil oFF T Y P E A _ T Y P E C R E C O F F P L A Y O N O F F s 702i NPUT SELECTOR L NE Hlc S 7 0 3 I N P U T S E L E C T O R L I N E M I C s 9 0 r F F S 9O2 REw s 9 0 3 s T o P S9O4 PLAY S905 PAUSE S 9 0 6 R Ê C S 9 O 7 R E CM U T E S g O 8 M S O N O F F S I 2 O I E R Â S EP R E V E N T O E T C T O R H O L E N O H O L E s r 3 0 r P o w E R o N o F F S I 4 O I T A P E S...

Page 20: ... S T R A P I LINE INPUÎ o j olloi MPX FILTER rnouxeaoexou vRrool INPUT AIJTO LEVEL CONTROL olot REC ON o3l I REC ONI sw s304 R E C oofr 1 s902 REW l s90l J LINE r 7 z Jzoz 1 mtcampI l agoe i FLAT ATt IP S UaeÀ FUNcTloilcot TRoL CONTROL CIRCUIT ...

Page 21: ... 25C2240 zsclT4o rYPê No 2SC2634 hFE 2SC2634NC 2SAt127NC 2SC2060 2SC2673 2SD837 PMg002 1C40668P M88 rc668M HDl40668 HD74LS122 MB74LS122 sN74LS122 8A328 G P 4 1 1 B 2æ 2021 2SA937 Lot No 2SD686 Lol No 4N6552 NJMII558D BArfs58 TD62504P 1D 2507P Lot No HAl1226 Lot No 2SD1031 2SC1383NC Lot No B hrr s E r c r À r x r 1 6 r a r c l æ I _ l o c s r 4 p n r p 4 Lol No I 7 8A6124 ...

Page 22: ...û2 Coil 36mHl L401 L501 Coil 36mHl Symbol Description 2SA933 25410151 2SA1 127NCl 2SA9371 H411226 NJM4558D AN6s52 8A45581 TD62504P TD62507P t TC4066BP M884066BMl HD1406681 152473 us1040 1K34A 1K60A 0A90 I OTHERS It lark Part No RKP446 RKP 346 Connector assembly 12P Connector assembly3P cEA 100M16 cEA 010M50 CEA R33M 50 CEARlOM50 coMA 1s3J 50 coMA 104J50 coMA 182J 50 coMA473K 50 coMA472K 50 coMA 18...

Page 23: ...DIAGRAM A u t ll î i 7 D 3 2 ...

Page 24: ...Crara ssr rPr FrLlEi oN oFF slo2 æLtY ilR ofl otF SS3 æLÊY ftI IEE q TYPÊC RE6 f PLAY oi 8 f s7o2 rd9ul sElCClOi tr ffrc s7o3 rtPuT SEL6C Oi Lrf E rrc o t r É o i E O N 9 8 sr201 ERAS æVENT ûtECrOR AO É rc Ë o i E sr t TAÉ SELECT CrO IEIAL S O2 TÂÈ S LECTOR rciM _ HIGH NOTE Playbacksignalroute Recordingsignalroute 6 5 4 ...

Page 25: ...30Ml6 cEA 470M16 c E A47 0 M1 0 c E A 1 0 1 M 2 5 c E A 1 0 1 M 1 6 cEA 221M25 c E A 22 1 M6 3 c E A2 2 1 M1 6 c E A 47 1 M 3 5 cEA 332M25 coMA 103J50 coMA 1s3J50 coMA 223J50 coMA 473J50 coMA 182K 50 coMA 103K50 CEA2R2M50 coMA 104J50 coMA 102K50 coMA 332K 50 coMA 273J50 c 10 1 c 2 01 c102 c202 c129 C229 c117 c217 c31I c 1 1 9 C 2 1 9 c108 c109 c l 1 5 C 1 1 8 c209 c211 c218 C220 c323 c301 c308 c10...

Page 26: ...08 Symbol Description RKB Ol 8 RSG I23 RSR 035 M15 414 Sensor Assembly lVlark Part No Terminal LINE S301 5303 Pushswitch assembly RY301 Lea_d relay 14 Shieldcase Symbol Description cP 41 18 RD74PM 2O1J RD 4PM 162J cEA 100M16 VolumeAssembly Mark Part No Photo interrupter R1001 R1002 c1001 Symbol Description t 2SC1 740LN 2SC181 5 2SC2021 LNI 2SC2634NC 25C2240 2SC1 740 5 2SC1740LN S 254933LN 2SA1015 ...

Page 27: ...ibre TU ou I ensemble complet du brasd entraînement Tableau 1 o Couple de tension inverse J 11 3 BÉGLAGE DE LA VITE DEFILEMENT DE LA B 1 Raccorder le fréquencemè sortie LINE OLITPUT cabestan comme indiquéà la La vitesse de défilement de la bande tance ajustable est tournée dans le sens et elle décroît lorseue l on tourne la 2 Reproduire la partie à 3kHz I bande d essai STD 301 Au début la fréq doi...

Page 28: ...ent c est à dire avec un êcart zêro comme indiqué sur la figure 11 5 11 7 NÉCUCE DE L ÉLECTRO AIMANT DE REBOBINAGE REW 1 Mettre la platine en mode de rebobinage REIry 2 Desserrer la vis et régter la position de montage de l électro aimant de rebobinage REW de manière à ce que le trou cané de I ensemble support de bobine soit de niveau avec la bossede I ensemble du bras d entraÎne ment c est à dire...

Page 29: ...evant ranges replace the TU take up reel base assembly and or supply reel base assembly TU idler or drive arm full assembly Table1 11 3 TAPESPEED ADJUST 1 Connect the frequencY OL TPLITterminals 2 Play back the 3kHz Portion bhe STD 301 test tape At the beginni frequency 3010H2 should be lie within the range and may be adj turning the apstanmotor semi fixed resistor located in adjustment hole as sh...

Page 30: ... full assembly is flush against the boss of the driving arm full assembly i e 0 separation assholvn in Fig 11 4 11 7 REW SOLENOID ADJUSTMENT 1 Put the deck into REW mode 2 Loosen screw and adjust the REl solenoid mounting position so that the square hole of the reel base full assembly is flush against the boss of the driving arm full assembly i e 0 separation asshown in Fig 11 4 REWposi ldlergear ...

Page 31: ...etesttdperSTD 3t41A 7 8 9 12 1 DOLBY NR ADJUSTMENT Setting Mode Record InputSignal 700H2 10dBv 316mV to LINE INPUT A C mV meter1 TP1 Lc h R ch of the Dolby assembly AC mV meter2 TP2 Lch Rch of the Dolby assembly Since theleftandrightchannels areidentical numbering of the TP terminals of the Dolby assembly is applied to both channels When adjustment pleaserefer to Fig l2 9 Procedure 1 Adjust the IN...

Page 32: ...meterreads 1 2 dBv 0 87V s l D 333H2 Fig 12 5Playback leveladjustment 12 5 OVERALL FREOUENCY RESPONSE ADJUSTMENT Serting Mode TestTape AC mV meter Procedure 1 Play back the 333H2 and 6 3kHz portions of the STD 341A and check that difference be tween the two output levels does not exceed 1 5d8 2d8 2 Connect the tenninal No 22 with No 23 of the mother assembly Play back the 333H2 and 6 3kHz portions...

Page 33: ...de los lfmites permisiblesenumeradosen la tabla 1 Si los valores medidos no estân dentro de tales lfmites reemplazar eI conjunto de la basedel carre te de a nastre TU y o conjunto de la basedel ca nete de suministro rueda de guia TU o todo el conjunto del brazo de arrastre Tabla1 las notas se apoyan en la torsiôn de la 11 3 AJUSTEDE LA VELOCI CINTA 1 Conectarel frecuencimetro a DE LA salidade lfne...

Page 34: ...e quede em potrado contra el cubo de todo el conjunto del brazo de arrastre i e separaciôn 0 como semuestra en la figura 11 5 Cubo conjunto completo del brazo impulsor Posiciôn REW Poeiciôn FF Separacién O I Fig 11 3 Ajustedel interruptordetectorde GRABACIôN 11 5 AJUSTE DEL CONJUNTO DETECTOR Aflojar el tornillo Q y ajustar la posiciôn de montaje del conjunto detector de modo que cuando se cargue u...

Page 35: ...mètrealtenratif mV C_A Atténuateur Oscilloscope Résistance 50 kC2 47 à b2 kO N r v e a u d I I F i g 1 2 1 Co n re n ud e t a b a n d ed q s sEi STD_341A 6 3 4 5 6 t Réglage 12 1 REGLAGE DUSYSTEME DE REDUCTION DEBRUITDOLBY régler ensuite le VR401 catralgauche et le VR501 canal droit afin qtæ I indicateur 1mV CA indique 2 2dBv 7f76hnv 5 Transmettrele signald entréer 0 Hz _ 10dBv 316mV sur LINE INPU...

Page 36: ...de pas 2 5dB t2dB _ t oi j ÊL pcition NoRM re a __ J11It sorrie 33Hz sonie 6 3kHz Pcurel L I i l 1 5dgt2ae i I l s o o o sroà o i 333H2 6 3kHz 20d8 12 4 NÉAUCE DU NIVEAU DE LECTURE Ger6glage déterminant le niYeau ds DOLBYNR pen dant la lecture il doit être réalis6avecprécision Préparation Mode Lecture Banded essai STD 3414 333H2 0dB Millivoltmètre CA TPl canal de gauche L et TPl canal de droite R ...

Page 37: ...5V Using STD 6O8A toith DOLBY NrB ON type f3f Hz Using STD 6OS with DOLBY NR OFF r 4 5 Record the 333H2 signal o PIayback the tape and chech meterreads 5 2dBv 0 55V 4 d 8 63xr 3 3 3 e STD 6O8A R102 L ch C mV meter e STD 603 the AC mV e STD 604 the AC mV B Mode Test Tape AC mV meter Input Signal Record STD 608A STD 603 STD 604 TPz L ch and 1P2 R ch of the DOLBY assembly 333H2 1OdBv 316mV to LINE IN...

Page 38: ...UsinsSTD 604 with DOLBY NR OFF Using STD 604 uith DOLBY NP ON B C type Fig l2 8 Frequencyresponse n r J d xsl i ll xïî li i Fig 12 9 Adjustmentpoints ...

Page 39: ...Procedimiento 1 Ajustar el control del nivel de entrada INPUT de modo que el multivoltfmetro 1 de CA indique 2 2dBv 776mV 2 Ajustar el VR403 canalizq y VRbOg canal der de modo que el multivoltfmetro 2 de CA indique 2 2dBv 776mV 3 Luego establecer el CT 5 en el modo de re producciôn y aplicar la seflal de entrada 00 Hz 10dBv 316mV al TPl canal izq y al TP2 canal izq del conjunto principal 4 1 Dolby...

Page 40: ... derecho de modo que el milivoltimetro de CA indique 1 2dBv 0 87V I I Modo Cinta de prueba Milivoltfmetro de CA Procedimiento 1 Reproducir las partes de 333H2 y 6 3kHz de la STD 341A y comprobar la diferencia entre los dos niveles de salida no exceda de 1 5d8 r2dB 2 Conectar el terminal no 22 al terminal no 23 del conjunto principal Reproducir ne nuevo las partes de 333H2 y 6 3kHz y cornprobar que...

Page 41: ...U T 2dBv 0 55V signal de sur la bande la bande fier que le CA indi 2dBv 0 55V a de gauche L de droite R OUTPUT ivoltmètre CA z sur la bande vérifier que le en en ce nors Seru ce Mode Bande d essai Millivoltmètre CA Enregistrement STD 6O8A STD 6O3 STD 604 TP2 canal de gauche L et TP2 canalde droite R de I en sembleDOLBY 333H2 10dBv 316mV à I entréede ligne LINE INPttT 3æn i316mv Utilisation de STD6...

Page 42: ... 12 8 Réponse en fréquence Canalgauche Ll Panneau arrière Canal droit Réglage debiæ du VR20B canal droitl P6 Réglaæ de biasdu VR1O3 canalgauche Régtage du niveaude reproductionffi t6ù Montage principal du VR1O1 canat gauchel Y Régrase duniveau d enregisrremant ljIffiji i ï reproduction duvR202 canat droit g ll ll I Réglaç du niveau d enrogistrement du VBl02 lcanal gauche SkHz Fig 12 9 Pointsde rég...

Page 43: ...go se compensael canal derechoen ldB a 63H2 y 0 5d8 a 125H2 debido al efecto aislante 63Hz 2S0Hz 333H2 lkHz 10kHz Respuesta enfrecuencia globale Empleando Ia STD 608A con eI sistema DOLBY NR en la posiciôn OFF Grabar la senalde 333H2 en producir la cinta y ajustar izquierdo y Ia VR202 modo que el milivoltimet 11 5dB Grabar la Reproducir voltfmetro 11 5d8 5 2dBv 0 54V Grabar la seflal de 333H2 la S...

Page 44: ...r Conjunto principal t nfl i t t I t t l t t l ET PI Ajustede la polarizaci6n deVRIGI canalizq l Aiuste del nivel de grab de VR102 canalizq l Alustedel de VR201 q nivel de reproduc canal der l Panel frontal Ajuste del nivel de reproduc de VRIOl canal izq l Aiuste del nivel de grab fâs de VR2O2 canal der l 19Ë SkHz R O Salidade grabaci6nl canal izc lg R O lSalida de VR403l grabaciônl TPl canal izq ...

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