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1. A T Screwdriver Fig 12 3 Tape transport adjustment 124 PLAYBACK LEVEL ADJUSTMENT Since this adjustment determines the DOLBY NR level during playback it should be performed precisely Setting Mode Playback FWD Test tape STD 341A 333Hz OdB portion mV TP601 of the DOLBY NR assembly L TP601 of the DOLBY assembly R 3 Step 3 Setting Mode dr oreste Record Pause Input Signal 700Hz 40dBv from INPUT 10mV AC mV meter TP603 of the DOLBY NR assembly E Procedure 1 Adjust the INPUT level control so that the AC mV meter reads 32 6dBv 23 4 mV 2 Set the DOLBY NR switch ON and C type position 3 Adjust the VR603 so that the AC mV meter reads 21 6dBv 83 mV P 12 2 HEAD AZIMUTH ADJUSTMENT Setting Mode M rien mas Playback FWD and REV Testtape STD 341A 10kHz portion AC mV meter OUTPUT terminals VR501 VR502 Max f E gt D Screwdriver Fig 12 2 Azimuth preadjustment Procedure Play a tape in both forward and reverse direc tions Adjust the head azimuth screw to the posi tion of maximum output level 12 3 TAPE TRANSPORT ADJUSTMENT 1 Load a mirror equipped cassette half 2 Set the DIRECTION switch to FORWARD and then the mode to PLAY 3 Adjust the adj
2. PIONEER Service REPAIR amp ADJUSTMENTS ORDER NO ART 671 0 STEREO CASSETTE TAPE DECK T 6R MODEL CT 6R COMES IN SEVEN VERSIONS DISTINGUISHED AS FOLLOWS Voltage Remarks 120V only U S A model 120V only Canada model 220V and 240V Switchable Europe model 220V and 240V Switchable U K model 220V and 240V Switchable Australia model 120V 220V and 240V Switchable General export model 120V 220V and 240 Switchable U S military model This service manual is applicable to the KU type For servicing of the other types plas refer to the additional service manual For the circuit amp mechanism description please refer to the supplement of CT 7R service manual ARP 001 0 e Ce manuel d instruction se ref re au mode de r glage en francais e Este manual de servicio trata del m todo de ajuste escrito en espa ol CONTENTS V SPECIFICATIONS E S mete 2 9UPACKINGZ obses ce 34 2 FRONT PANEL FACILITIES 3 10 ELECTRICAL PARTS LIST M 35 3 DISASSEMBLY 5 11 MECHANICAL 40 4 PAR TS LOCATION rr te ier RE 7 12 ELECTRICAL ADJUSTMENTS 42 5 EXPLODED VIEWS AND PARTS LIST 9 11 R GLAGES M CANIQUES 1 1 49 6 BLOCK DIAGRAM iio eee 16 12 R GLAGES LECTRIQUES 1 1 51 7 P C BOARDS CONNECTION DIAGRAM 19 11 AJUSTES ME
3. MODE TIMER RSB 030 Push switch RSG 126 Cassette plate assembly RXX 338 Erase head RPB 094 Head assembly REC PB RXX 333 Indicator assembly B Dummy head IR ANV 163 Top View with Bonnet Removed Mother assembly RWX 503 Remote control assembly Fuse 2A REK 055 DOLBY NR assembly 1 RWX 499 Fuse 1 2A REK 059 DOLBY NR assembly R RWX 499 Amplifier assembly Power transformer RWF 095 120V RTT 239 Reel motor control gb A y assembly B 1 NV lil RWX 491 i N 4 Capstan motor control Wh j Jack assembly assembly B E r RWX 498 RWX 488 TE Panel stay Switch assembly RNT 017 RWS 139 Mechanism assembly Meter drive assembly RWX 500 Rear Panel View Remote control socket Bonnet RKP 222 RNA 563 Main chassis A Strain relief gt REC 376 Terminal Power cord RKB 018 RDG 022 RDG 030 2 XTERIOR 24 gt lt s 22 Mark No _ Part No Description 81 RBH 855 Spring 82 RNH 064 FG plate 83 RXX 334 FG coil assembly 84 RNH 061 FG shield plate 85 RXB 552 Bearing housing assembly 86 RNL 257 Trigger lever R 87 RWX 491 Reel motor control assembly B 88 Heat sink A 89 P C B 90 RWX 488 Capstan motor control assembly B 91 Cord clamper 92 RXX 335 Capstan motor coil assemb
4. CKDYF 1032 50 CEA R47M 50 CEA 4R7M 35 CEA 2R2M 50 CEA 101M 6R3 COMA 473K 50 CKDYF 4732 50 C207 C205 C212 C201 C204 C211 C209 C213 C215 RD1 4PMO0O0J RCX 010 RCX 012 8251 8288 R255 R256 H251 8284 Hall device 39 12 ELECTRICAL ADJUSTMENTS Precaution 1 Mechanical adjustment should be completed 2 Clean the following parts with an alcohol moistened swab Record Playback head Pinch roller Erase head Rubber belts and Capstan 8 Demagnetize record playback head with a head demagnetizer 4 Do not use magnetized screwdriver for adjust ments 5 Adjustment and measurements should be per formed for both L ch and R ch with rated power supply voltage 6 Adjustments should be performed in the order given in this service manual Altering the order can hinder proper adjustments resulting in loss of performance 7 Level during measurements are based on OdBv 1V Connect a 50kQ dummy resistor across the OUTPUT terminals 8 Let the CT 6R warm up aging for a few minutes before proceeding with the adjust ment 9 Set the DOLBY NR switch OFF unless direct ed otherwise Test Equipment Tools Required 1 Test tape STD 331A for general playback pur pose STD 341A for playback adjustment STD 608A NORMAL blank tape STD 603 CrO blank tape STD 604 METAL blank tape 2 Audio oscillator 3 AC millivoltmeter AC mV
5. Ensemble Dolby NR canal de gauche L Ensemble principal i 2 TP301 7 Ensemble Dolby NR uc LR i TP303 canal de droite R Fig 12 6 Points de r glage 56 11 4 AJUSTE DE LA VELOCIDAD DE ROTACI N EN AVANCE R PIDO Y REBOBINADO FF REW 1 Conectar un frecuenc metro entre el FG del conjunto de control del motor del carrete y GND Fig 11 5 2 Poner el selector de DIRECTION en la posici n FORWARD y el de modo en la posici n FF 3 Ajustar el VR202 de modo que el frecuenc metro indique 72 Hz 2 Hz 4 Poner el selector de modo en REW y esta vez comprobar que la indicaci n del frecuenc metro est dentro del margen de 72 Hz 5 Hz Conjunto de control del motor del carrete Conjunto de control del Y lt N motor del eje de arrastre gt AW lt Connectar el d frecuencimetro Fig 11 5 Ajuste de la velocidad de rotaci n en los modos de FF y REW 11 5 AJUSTE DEL PAR DE TORSI N DE ARRASTRE 1 Montar un casete tipo medidor del par de torsi n 2 Poner el selector de DIRECTION en la posici n FORWARD y el de modo en la posici n PLAY 3 Ajustar el VR201 de modo que el par de torsi n de arrastre est dentro del margen de 45 5 g cm Fig 11 5 4 Poner el selector de DIRECTION en la posici n REVERSE 5 Comprobar que el par de torsi n de arrastre est dentro del margen de 10g cm Fig 11 6 Medidor del par d
6. TP603 de l ensemble alternatif Dolby NR 4048v how s eosin 4 Proc dure 1 R gler la commande de niveau d entr e INPUT de mani re ce que le millivoltm tre alternatif indique 32 6dBv 23 4 mV 2 Enclencher le circuit Dolby NR ON et le r gler sur la position C 3 R gler VR603 de mani re ce que le millivolt m tre alternatif indique 21 6dBv 83 mV 12 2 R GLAGE DE L AZIMUT DE T TE Montage Lecture FWD et REV Bande d essai STD 341A partie de 10kHz Millivoltm tre Bornes de sortie alternatif OUTPUT VR501 VR502 Maximum Sortie OUTPUT de lecture sss J i gt NA 4 J a IE Tornevis Fig 12 2 Pr r glage d azimut 52 Proc dure Lire la bande en sens avant et en sens arri re R gler la vis d azimut de t te sur la position donnant le niveau de sortie maximum 12 3 R GLAGE DE L ENTRA NEMENT DE LA BANDE 1 Charger une demi cassette munie d un miroir 2 Placer le commutateur de DIRECTION sur la position FORWARD avant et le mode sur PLAY lecture 3 R gler l crou de r glage de mani re ce qu aucune ondulation ne se produise sur la pi ce de guidage de la t te d enregistrement lecture REC PB ni sur le guide de la t te d effacement comme indiqu la Fig 12 3 4 Placer le commutateur de DIRECTION sur la position REVERSE arri re 5 R gler l crou de r glage
7. 10dBv de INPUT 316mV Millivoltm tre TP601 de l ensemble alternatif 1 Dolby NR Canaux de gauche et de droite Millivoltm tre TP602 de l ensemble lalternatif 2 Dolby NR canaux de gauche et de droite Proc dure 1 R gler la commande de niveau d entr e INPUT de mani re ce que le millivoltm tre alter natif 1 indique 2 2dBv 775mV 2 R gler VR602 de mani re ce que le milli voltim tre alternatif 2 indique 2 2dBv 775mV Etape 2 Montage Mode Lecture Signal d entr e 700Hz 10dBv 316mV TPIN de l ensemble AMP Millivoltm tre TP601 de l ensemble alternatif 1 Dolby NR canaux de gauche et de droite Millivoltm tre TP602 de l ensemble alternatif 2 Dolby NR canaux de gauche et de droite 1 ATT 4 P _VR601 T te d enregistrement M Voltm tre 2 b P Va 12602 2 Mtr 2248v 700Hz Voltm tre 1 A 4 Ho 1048v 1316mv N _ 2248 411775 2 11775mv Fig 11 5 R glage de la vitesse de rotation d avance rapide 11 5 R GLAGE DU COUPLE D ENROULEMENT 1 2 11 4 R GLAGE DE LA VITESSE DE ROTA TION D AVANCE RAPIDE ET DE REBOBINAGE DE LA BANDE Raccorder le fr quencem tre entre FG du moteur d entrainement du m canisme de bobinage et GND Fig 11 5 R gler le commutateur DIRECTION sur FORWARD et le mode de
8. 2 Sue Po cu wa CE a fale 47K mile ee 900 mo gt 2 Ra a V 771 Z SS 5 4 a gt A6 IT sx 5303 5 h i UA GN 1C3012MB74L S122 or HD78LS322 or 5 7415122 or 0 741512 995 iB 4 2 e Te Orr are 8 ig TC40668P 0 E mpx FILTER porey NR 1 1 HD140668 10K LA pe tv 7 0 54 M f 1 p TH f 4 lt Q L 1 a I Ua f P gt Ra Um mas 4 v 1 NP UOTE gt B36 308 320 323 325 0329 330 333335 152415 951040 0 221 5412901 6504 980890 k hay 1 E ST RANAS 9 Lom uw TIRE Mv Qe t 4 k US S kk wk 16 17 18 19 21 22 23 24 25 26 27 28 31 32 8 Part No RNA 563 RXB 595 RBH 892 RNL 338 RAC 195 RNL 358 RAC 209 RAC 211 RAC 210 RBH 902 RAA 362 RAA 361 RXX 338 REL 091 RNT 017 RBH 901 RAC 208 REB 456 RWX 109 RWX 234 RSA 046 RAW 163 RAW 161 RAA 359 RWS 140 RSG 063 RSG 088 RAC 194 RAC 193 RAC 192 RNL 380 RWX 503 RKB 018 RSG 126 REK 059 REK 055 RWX 499 RKP 273 RWF 095 RNL 375 RWX 500 Description Mark Bonnet Door panel assembly Door panel Door
9. 4 Attenuator 5 Oscilloscope 6 Resistor 50k9 1 4W LEVEL dB 100 sec 100 sec 50 sec 100 sec Fig 12 1 Contents of the test tape STD 341A 42 12 1 DOLBY NR ADJUSTMENT Step 1 Setting M de res he adn vs Record Pause Input Signal 700Hz 10dBv from INPUT 316mV AC mV meter 1 TP601 of the DOLBY NR assembly L amp Rch AC mV meter 2 TP602 of the DOLBY NR assembly L amp Rch CDI input VR 70M 10dBv 316mV Procedure 1 Adjust the INPUT level control so that the AC mV meter 1 reads 2 2dBv 77 5mV 2 Adjust the VR602 so that AC mV meter 2 reads 2 2dBv 775mV Step 2 Setting Mode 5 Playback Input Signal 700Hz 10dBv 316mV to TPIN of the AMP assembly AC mV meter 1 TP601 of the DOLBY NR assembly L amp Rch AC mV meter 2 TP602 of the DOLBY NR assembly L amp Rch Y Procedure 1 Adjust the ATT so that the AC mV meter 2 reads 2 2dBv 775mV 2 Adjust the VR601 so that the AC mV meter 1 reads 2 2dBv 775mV 11 4 FF REW ROTATING SPEED ADJUSTMENT 1 Connect the frequency counter between FG of reel motor control assembly and GND Fig 11 5 2 Set the DIRECTION switch to FORWARD and then the mode to FF 3 Adjust VR202 so that the frequency counter indicates 72 Hz 2Hz 4 Set the mode to REW and at this time check that a reading of frequency counter
10. G 2 K 10 tolerance CAPACITORS indicated in capacity u F voltage V unless otherwise noted pF Indication without voltage 15 50V except electrolytic capacitor N VOLTAGE 5771 DC voltage V at no input signal OTHERS w gt m Signal route Adjusting point The mark found on some component parts indicates the im portance of the safety factor of the part Therefore when replacing be sure to vse parts of idemical designation gt 1C601 11226 visos DOLUY NR LEVEL ADJ 0 90 1008 ner 032 4 IC saz 15 81 PB GAIN ADU ceza Tena REP 098 MOTHER Ass y 306 184 20 esos 001 am poe 0601 603 po D604 607 oan 182473 061040 VN6OR REC GAIN ADJ I 095 L L 1C 602 062507 1C603 604 TC40668P or gt L M884066BM HD140668 _ Y gt n 8 o 601 NR IN lt I 6 REC t our a 6 L n MOTHER Assy 305 41 12 DOLBY Assy R SAME AS LCH RWX 499 602 E REC R 1 402 1178 4 4 12802 13555 MOTHER I Ass y 1319 174 ceo 1 602 T 12 91 4 8 272 2 J oz u 3 QO _ so 7 a 4 4 re i 107 1 6 4 3 1 J MOTHER Ase y 318 1 12 SWITCHES 1 RESISTORS SIOt CASSETTE HALF DETECTOR WNO HALF HALF 5402 ERASE P
11. L I Proc dure 1 R gler la commande de niveau d entr e INPUT de mani re ce que le millivoltm tre alter natif 1 indique 2 2dBv 775mV 2 R gler VR602 de mani re ce que le milli voltim tre alternatif 2 indique 2 2dBv 71 5mV Etape 2 Montage Mode Lecture Signal d entr e 700Hz 10dBv 316mV TPIN de l ensemble AMP Millivoltm tre TP601 de l ensemble alternatif 1 Dolby NR canaux de gauche et de droite Millivoltm tre TP602 de l ensemble alternatif 2 Dolby NR Voltm tre 1 T TPIN ATT Lec 4 GE QO 2 248v 4 775 775mV canaux de gauche et de droite 1 4 1 3 VR60 Tate d enregistrement Voltm tre 2 1 19502 V 22 x Montage Mode su Lecture avant FWD Bande d essai STD 341A partie de 333Hz 0dB Millivoltm tre TP601 de l ensemble alternatif Dolby NR de gauche L TP601 de l ensemble Dolby NR de droite R VR501 canai de gauche 1 U VABO2 canal de droite IR T te de lecture T Sortie OUTPUT 6 1 601 canai de TD MIA ous Puche LN 2 canal de 7 droite IR 299 1087V Proc dure R gler VR501 canal de gauche et VR502 canal de droite de l ensemble AMP de miani re ce que le millivoltm tre alternatif indique 1 2dB
12. RESISTORS Note When ordering resistors convert the resistance value into code form and then rewrite the part no as before Mark Part No Symbol amp Description RCP 055 RCP 032 RD1 4PMODOJ SEMICONDUCTORS Mark Part No VR601 VR602 Semi fixed 2 2k B P C GAIN REC GAIN VR603 VR604 Semi fixed 10k B DOLBY LEVEL REC LEVEL R601 R641 Symbol amp Description HA11226 601 wk 4066 1 602 1C603 MB84066BM HD14066B TD62507P 1 604 2SA933LN 0601 25A937 25A 1127NC 2541015 152473 0601 0603 0604 0607 051040 1K34A 0602 0605 0606 1K60A 0A90 OTHERS Mark Pert No Symbol amp Description RTF 092 L601 Coil 36mH Meter Drive Assembly RWX 500 CAPACITORS Mark Part No Symbol amp Description CEA 100M 16 CKDYF 1032 50 RESISTORS C1001 C1004 C1005 Note When ordering resistors convert the resistance value into code form and then rewrite the part no as before Mark Part No Symbol amp Description RD1 4PMOODJ SEMICONDUCTOR Mark Part No R1001 R1011 Symbol amp Description 2 02 38 1C1001 1C1002 OTHERS Mark Part No Symbol amp Description RKP 355 CN1002 Connector socket assembly 4P Switch Assembly Mark Part No Symbol amp Description RSB 030 701 S702 Rotary switch B MODE TIMER RCV 096 VR701 Variable resistor 100k
13. REVERSE 5 Ajustar el tornillo de ajuste de modo que no haya enrollamiento en la gu a de la cabeza de GRAB REPROD y gu a de la cabeza ficticia Cabeza de borrado 6 Reproducir una cinta en las direcciones de Fig 11 1 Ajuste de la presi n del rodillo de presi n avance FORWARD y de rebobinado 11 2 PREAJUSTE DEL ACIMUT comprobar que no se enrolla Poner el selector de DIRECTION en la posici n de avance FORWARD y el de modo en la Punto de comprobaci n rer c CHEST O NN posici n STOP i 2 Ajustar el tornillo del acimut Q empleando un destornillador de cabeza horizontal como se muestra en la Fig 11 2 3 de modo que la Espejo distancia A entre el emplazamiento y la base de rotaci n sea de 1 5 mm Casette provisto de espejo 3 Ponerelselector de DIRECTION en la posici n de inversi n REVERSE 4 Ajustar el tornillo del acimut empleando un destornillador de cabeza horizontal como se muestra en la Fig 11 2 3 de modo que la distancia B entre el emplazamiento y la base L de rotaci n sea de 1 5 mm Base de rotaci n Cabeza de ell P GRAB REPROD Z O rev LS AT E Destornillador de 8 il A EF Nk 1 9 cabeza horizontal Emplazamiento NS rcv O rwo Fig 11 2 Punto de ajuste del acimut Y Fig 11 4 Ajuste del transporte de la cinta 58
14. Record Record Play back M Input Signal 333Hz 10dBv 63H 2 SPORE from INPUT 316mV Test tape STD 608A NORM 1 STD 603 CrO2 Using STD 603 with DOLBY NR ON C uM m ii STD 604 METAL AC mV meter TP601 of the DOLBY NR assembly L TP601 of the DOLBY NR assembly R 63Hz 125Hz 333Hz 1kHz 12kHz je T REC HEAD i mdi TA 4 125 PLAYBACK EQUALIZER CHECK TE Ofynion mon Setting Mode Playback FWD and x F i Y REV ET ou Testtape STD 341A 333Hz and amas treat nen da 6 3kHz portions J AC mV meter OUTPUT terminals Procedure Lk Y Adjust the VR501 Lch and VR502 Rch of S the AMP assembly so that the ACmV meter J us reads 1 2dBv 871mV sus Shes 2008 ae A 333Hz level 6 3kHz level 0 5dB 2dB Procedure Play the 333Hz and 6 3kHz portions of the test tape Check that the difference between the two output levels does not exceed 0 5dB 2dB 4499 4444 9044 229462 PIAR HEE PIE O DAE VR502 P B level adj Dolby NR assembly Dolby NR assembly Lch TP601 x VRBO1l Lch P B level adj points Fig 12 4 Adjustment Step 3 Setting MOLE Record Pause Input Signal 700Hz 40dBv from INPUT 10mV AC mV meter TP603 of the DOLBY N
15. Screw Scr w Transfermer plate Rivet VR shield paper Shield paper 15 6 BLOCK DIAGRAM FLAT AMP 10602 4 5 0604 REC O o PB 60312 HEAD ss SPECTRAL Sr gt n P lt D as 4 ANTI RLSO DOLBY NR B C TYPE SYSTEM IC602 1 9 E 4 2 11226 1 2 IC604 1 2 O PB O 0 SIDE SWITCH CHANGE s PECTRAL EWING poi Bv CON 5 Ti SATUTION CONROL CIRCUIT SWITCH SWITCHES S POWER ON OFF CAPSTAN MOTOR 5301 FLIER CIRCUIT 5302 DOLEN B C LINE MUTE gt lt V 0 S303 DOLSY ON OFF REV TIMING 5304 FWDAREMSELECTOR FWD ARCUIT i REC MUTE 5701 MODE 5702 TIMER REC QFF PLAY REEL MOTOR 80 INPUT SELECTOR LINE MIC CIRCUIT LEVEL METER LINE OUTPUT POWER MUTING R SUPPLY 301 REC MUTE 302 REC 303 PLAY 304 PAUSE 305 FF 106 REW 07 STOP 308 DIRECTION 109 SKIP HO INDEX SCAN underlined indicates the switch position ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF T Q302 307 324 ES n Y E or 3 i 1C303 PM300 862634NC or 4 Le D333 335 2581815 or y 152473 or Lh 14 2502021 CHA US 1
16. Symbol amp Description indicator assembly B CN1102 Connector socket assembly 2P Mother Assembly RWX 503 CAPACITORS Mark Part No Symbol amp Description 332K 50 CEA 102M 50 CEA 471M 16 CEA 221M 25 CEA 221M 16 CEA 102M 6 3 CEA 101M 35 CEA 101M 25 CEA 101M 10 CEA 470M 16 CEA 470M 10 CEA 330M 16 CEA 220M 10 CEA 100M 16 CEA 2R2M 50 CEA 010M 50 CEA 4R7M 50 103K 50 182J 50 103J 50 CKDYF 4732 50 CKDYF 1032 50 CKDYB 102K 50 CCDSL 101K 500 CQPA 1824 100 CEA 220M 6 3NP RCH 042 C301 C302 C324 C325 C334 C335 C341 C314 C315 C339 C304 C352 C336 C333 C344 C328 C346 C348 C356 C318 C331 C332 326 C342 C303 C350 C351 C354 C370 C371 C308 C309 C316 C317 C310 C311 C357 C355 C322 C312 C313 C323 C369 C329 C330 C340 C345 C372 C373 C337 C319 C320 C321 C380 C327 9 PACKING Parts List Mark No Part No Description 1 RHG 439 Packing case 2 RHA 239 Pad 3 RHX 031 Sheet C 4 RRB 153 Operating instrugtions 5 RDE 010 Connection cord 6 RHC 119 Styrene paper DOLBY L RWX 499 Indicated in n 4W 5 tolerance unless otherwise noted k k t MQ F 1
17. de mani re ce qu aucune ondulation ne se produise sur le guide de la t te d enregistrement lecture REC PB ni sur le guide de la t te d efface ment 6 Faire d filer une bande en avant FORWARD et en arri re REVERSE et v rifier qu aucune ondulation ne se produit Cabestan Point de controle zal R Mirror EAN Demi cassette quip e d un miroir Qe 5 de 22 K HE TAF HH3 lt C tea gt P n r EJ es WA Ta EL O gt REV rn YA Tournevis G Fig 12 3 R glage de l entra nement de la bande 12 4 R GLAGE DU NIVEAU DE LECTURE Ce r glage doit tre effectu avec pr cision car il d termine le niveau Dolby NR pendant la lecture 12 R GLAGES LECTRIQUES Pr cautions 1 Les r glages m caniques doivent tre termin s 2 Nettoyer les pi ces suivantes l aide d un b tonnet imbib d alcool t te d enregistre ment lecture galet presseur t te d effacement courroies en caoutchouc et cabestan 3 D magn tiser la t te d enregistrement lecture P aide d un d magn tiseur de t te 4 Ne pas utiliser de tournevis magn tis pour les r glages 5 Les r glages et les mesures doivent tre r alis s pour les canaux de gauche et de droite avec la tension d alimentation nominale 6 Les r glages doive
18. MIC L R 0 3mV 30mMV 12kQ 6mm diam jack Reference MIC impedance 2502 to 10k LINE INPUT x2 50mV 25V 100kQ Pin jack Output Reference level Load impedance LINE OUTPUT 2 450mV 50k amp 2 Pin jack Headphones 60mV 892 6mm diam jack Subfunctions Auto reverse auto repeat functions MS SKIP Music Search Skip system REC MUTE switch Dolby NR system B type C type OFF with LED indicator lamp Stand by mechanism with unattended recording and playback 3 position Auto tape selector METAL Full automatic stop mechanism 2 color diaital level meter 3 digit mechanical tape counter IC based logic control Cassette compartment illumination INDEX SCAN system Miscellaneous Power Requirements AC120V 60Hz Power Consumption 43Watts Dimensions 420 W x 99 5 H x 270 D mm 16 9 16 W x 3 15 16 H x 10 5 8 D in Weight without package 5 3kg 12 Ib Furnished Parts Connection cord with pin plugs 2 Operating instructions 1 NOTE Specifications and the design subject to possible modifications without notice due to improvements NOTE 1 Reference Tapes Normal amp LH DIN 45513 BLATT 6 or equiv CrO DIN 45513 BLATT7 CrO or equiv 2 Reference Recording Level Meter OdB indicating level 160nwb m magnetic level Philips cassette refer
19. dentro del margen de 100 30 g cm 11 8 COMPROBACI N DEL PAR DE TORSI N POSTERIOR DE LA BASE DEL CARRETE 1 Montar un casete tipo medidor del par de torsi n 2 Ponerelselector de DIRECTION en la posici n FORWARD y el de modo en la posici n PLAY 3 Entonces comprobar que la tensi n posterior del lado del carrete de suministor base del carrete de la izquierda est dentro del margen de 3 5 1 5 g cm 4 Poner el selector de DIRECTION en la posici n REVERSE 5 Entonces comprobar que la tensi n posterior del lado del carrete de suministor base del carrete de la derecha est dentro del margen de 3 5 1 5 g cm 59 12 AJUSTES EL CTRICOS Precauciones 1 Deber n completarse los ajustes mec nicos 2 Limpiar las partes siguientes con algod n humedecido en alcohol cabeza de grabaci n reproduci n rodillo de arrastre cabeza de borrado correas de goma y eje de arrastre 3 Desmagnetizar la cabeza de grabaci n repro ducci n con un desmagnetizador de cabezas 4 No utilizar destornilladores magnetizados para los ajustes 5 Los ajustes y las mediciones deber n realizarse para la tensi n nominal de suministro de los canales izquierdo y derecho 6 Los ajustes deber n realizarse en el orden dado en este manual de servicio Si se altera el orden los ajustes pueden resultar in tiles dando como resultado una p rdida de rendimiento 7 nivel durante las mediciones se basa
20. Set the DIRECTION switdh Mo FORWARD and then the mode to FF 3 Check that the FAST torque is within 100 30 g cm in the condition described in above 2 A Set the mode to REW and at this time check that the FAST torque is within 100 30 g cm 11 8 REEL BASE BACK TENSION TORQUE CHECK Mount a cassette type torque meter 2 Set the DIRECTION switch to FORWARD and then the mode to PLAY 3 At this time check that th back tension on a supply reel side left reel base is within 3 5 1 5 g cm 4 Set the DIRECTION switch to REVERSE 5 At this time check that the back tension on the supply reel side right base is within 3 5 1 5 g cm 47 11 MECHANICAL ADJUSTMENTS 11 1 PINCH ROLLER PRESSURE CHECK 1 2 Put the tape deck into the playback mode FORWARD and REVERSE Gently push against the pinch roller arm with the tension gauge Part No GGK 047 and read the value when the pinch roller stops rorating If the reading fails to lie within 250 400g replace the pinch roller pressure spring Tension gauge 3 Part No GGK 047 inch roller Erase head Fig 11 1 Pinch roller pressure adjustment 11 2 AZIMUTH PREADJUSTMENT 1 2 40 rev ewo Set the DIRECTION switch to FORWARD and then the mode to STOP Adjust the azimuth screw using a screwdriver as shown in Fig 11 2 3 so that the distance A between housing and rotating base is 1 5 mm Set
21. Using STD 603 with DOLBY NR ON C type 4 sas 4 HPE 63Hz 333Hz A 12kHz Using STD 604 with DOLBY NR OFF 125Hz 333Hz 1kHz 2kHz 12kHz Using STD 604 with DOLBY NR ON B type 63Hz 125Hz 333Hz 12kHz Using STD 604 with DOLBY NR ON C type 2kHz 63Hz 125Hz 333Hz 1kHz 12kHz Fig 12 5 Frequency response 12 8 RECORDING LEVEL ADJUSTMENT Setting Mode e Record Record Play back Input Signal 333Hz 10dBv from INPUT 316mV Test tape 22 51 STD 608A NORM STD 603 CrO2 STD 604 METAL AC mV meter TP601 of the DOLBY NR assembly L TP601 of the DOLBY NR assembly R lt I m A C 12 6 ERASURE CURRENT ADJUSTMENT Setting Mode i e eve S Record INPUT Level Control Min AC mV meter TP301 of the Mother assembly Test tape STD 604 Procedure 1 Set the CT 6R to the FWD position and adjust the VR305 so that the AC mV meter reads 180mV 12 7 RECORDING PLAYBACK FREQUENCY RESPONSE ADJUSTMENT Setting Mode sucias Record Record Playback Input Signal 333Hz 30dBv from INPUT 31 6mV 6 3kHz 30dBv 31 6mV Test tape STD 608A AC mV meter OUTPUT terminals 333Hz 2 RS Em A 44 6mV 45 Procedure 1 Adjust the INPUT level control so that the AC mV meter reads 27dBv 44 6mV 2 Set the CT
22. Utilisation de STD 608A avec Dolby ENCLENCHE x type B 1kHz 63Hz 125Hz 333H2 10kHz Utilisation de STD 608A avec Dolby NR ENCLENCHE type C 3dB 4 5dB gt 4 4dB 1kHz 1 63Hz 125Hz 333 2 2kHz 10kHz Utilisation de STD 603 avec Dolby NR DECLENCHE 63Hz 125Hz 333Hz 1kHz 2kHz Utilisation de STD 603 avec Dolby ENCLENCHE type B 63Hz 125Hz 333Hz 1kHz 12kHz Utilisation de STD 603 avec Dolby NR ENCLENCHE type C 63Hz 125Hz 333Hz 1kHz 12kHz Utilisation de STD 604 avec Dolby NR DECLENCHE 125Hz 333Hz 1kHz 2kHz 12kHz Utilisation de STD 604 avec Dolby NR ENCLENCHE type B 2kHz 63Hz 125Hz 333Hz 1kHz 12kHz Utilisation de STD 604 avec Dolby NR ENCLENCHE type C 2kHz 63Hz 125Hz 333Hz 1kHz 12kHz Fig 12 5 R ponse en fr quence 12 8 R GLAGE DU NIVEAU D ENREGISTRE MENT Montage Modern Enregistrement Enregistrement lecture Signal d entr e 333Hz 10dBv INPUT 316mV Bande d essai STD 608A NORM STD 603 CrO2 STD 604 METAL Millivoltm tre alternatif TP601 de l ensemble Dolby NR de gauche L TP601 de l ensemble Dolby NR de droite R Potantiom tre d entr e INPUT VA n The d enregistrement Entr e INPUT 77 2 p J 2 Un x 1068 r 5 2484 0 541 P601 canai
23. n en ambas direcciones de ida y retorno y comprobar que no ocurra oscilaci n en la cinta Capstar Punto de comprobaci n IE Y W Destornillador Lt Fig 12 3 Ajuste del transporte de la cinta 12 4 AJUSTE DEL NIVEL DE REPRODUC CI N Puesto que este ajuste determina el nivel de reducci n de ruido DOLBY de grabaci n deber realizarse de modo prociso Ajuste Modo Reproducci n FWD Cinta de prueba STD 341A posici n 333Hz 0dB Volt metro de CA TP601 del conjunto L escala de mV de DOLBY NR TP601 del conjunto R de DOLBY NR 61 Procedimiento VR604 canal der 1 Poner la cinta de prueba STD 608A y ajustar e lt RET f el control de nivel de entrada INPUT de modo que el volt metro de CA indique di d 5 2dBv 549 mV a STO 808A 2 Poner el interruptor DOLBY en la posi 316mV A Tae 252 ci n ON Ajustar el CT 6R en la posici n FWD y grabar y reproducir se ales de entrada en la STD 608A Ajustar el VR 604 canal NE izq y el VR 604 canal der de modo que S CABEZA DE el voltimetro indique 5 2dBv 549 mV LE s Poner la cinta de prueba STD 603 y el inter ruptor DOLBY NR en la posici n ON y el grabar y reproducir se ales de entrada en la TREO towne der bu STD 603 Confirmar que el voltimetro de CA indique 5
24. 6R to the FWD position and record and playback the input signals 333Hz and 6 3kHz onto the STD 608A Adjust the VR301 Lch and VR303 Rch so that the difference between two is 1dB s dB As listed in the specifications in Fig 12 5 and check to see that performance meets specifica tions Frequency Response Using STD 331A with DOLBY NR OFF However the right channel is compensated by IdB at 63Hz and 0 5dB at 125Hz because of the insulation effect 63Hz 125Hz 333Hz 2kHz 10kHz Overall Frequency Response Using STD 608A with DOLBY NR OFF and 63Hz 125Hz 333Hz 2kHz 6 3kHz 12kHz 12 6 ERASURE CURRENT ADJUSTMENT Setting 5 ha s Record INPUT Level Control Min AC mV meter TP301 of the Mother assembly Test tape STD 604 J p B Procedure 1 Set the CT 6R to the FWD position and adjust the VR305 so that the AC mV meter reads 180mV 12 7 RECORDING PLAYBACK FREQUENCY RESPONSE ADJUSTMENT 33 YN Setting et Mada Record Record Playback Input Signal 333Hz 30dBv from INPUT 31 6mV 6 3kHz 30dBv 31 6mV Test tape STD 608A AC mV meter OUTPUT terminals 3048 131 6mV 7 vh 45 pz a REC HE INPUT REC ME AD gt so fl E 333 Le 6 3k JOdBv STD 608A 31 6mV ESE dud J FWD mem Fi 3 dB VD 6 3 He le
25. 8 DOLBY NR ON ES Posici n C gt get Procedimiento 1 Ajustar el control de nivel de entrada INPUT de modo que el volt metro de CA escala de mV indique 32 6dBv 23 4 mV 2 Poner el interruptor DOLBY NR en la posi ci n ON y en la posici n C 3 Ajustar el VR603 de modo que el volt metro de CA escala de mV indique 21 6dBv 83mV 12 2 AJUSTE DEL AZIMUT DE LA CABEZA Ajuste Modo Reproducci n FWD y REV Cinta de prueba STD 341A parte de 10kHz Voltimetro de CA Terminales OUTPUT escala de mV VR501 VR502 M x CABEZA DE GRAB SALIDA r 7 pr J L 0 fsru 3144 lt sons 2098 Destornillador Fig 12 2 Preajuste del azimut Procedimiento Poner una cinta en reproducci n en ambas direcciones de ida y retorno Ajustar el tornillo del azimut de la cabeza hasta la posici n que ofrezca el mayor nivel de salida 12 3 AJUSTE DEL TRANSPORTE DE LA CINTA 1 Insertar un casete provisto de espejo 2 Poner el selector DIRECTION en la posici n FORWARD y el de modo en PLAY 3 Ajustar la tuerca de ajuste de modo que no oscile la qu a de la cabeza REC PB ni la qu a de la cabeza de borrado como muestra la figura 12 3 4 Poner el selector DIRECTION en la posici n REVERSE 5 Ajustar la tuerca de ajuste de modo que no oscile la qu a de la cabeza REC PB ni la qu a de la cabeza de borrado 6 Poner la cinta en reproducci
26. PLAY REC VN Tr mune 5 5 T 1 ma oP oP Gy Gy X0 M3 L REEL MOTOR CONTROL Ass y CONTROL Ass y 10 1 REEL MOTOR CONTROL Assy RWX 491 IC20 0204 9205 202 VR20 VR202 1202 Cas gs 000 A A o 0 100K B T PA2008 gt Sid TT Q201 254934 4 y Q202 250882 1 26405 4 4 amp 04 80 Rose 10K 7 21508 ol 4 els 212 T GND VR201 Lo O WO 2562458 22K B hs lt 2E 4 bs 6 9 555565 2561173 R Cao 0 01 m REEL MOTOR DRIVE Ass y x 221224 8 0 0 zi x orRCx Qe lt m N g lol lot a a A 9559 _ L id 10 11 FUNCTION SWITCH Assy RWS 140 _ _ hr 8 48 qu FF 5909 SKIP 5504 t 246 mL Sor RE 56 E es A S906 W ert Can TR 8 5 W INDEX SCAN Le 908 DIRECTIOI p i gt 4 2 e B ALES pd tz la 36 y EE gt PLAY Ww P b re CONTROL Assy RWX 488 m 4 om P gt 1102 imos 9 c B o 4 S H101 102 R
27. Playback function switches Playback operations can be performed when the sections with the following symbols are depressed gt gt fast forward The tape runs at high speed from left to right The tape runs at high speed from right to left The direction of the tape travel is reversed even in the pause mode PLAY The tape is played STOP The tape is stopped a rewind C2D direction 104940 9 02 6 Recording function switches Recording operations can be performed When the switches with the following symbols are depressed PAUSE The tape travel during recording can be tempor rily suspended cording standby Depress this switch again to fesulhe recording NOTE The tape will not stop when this switch is depressed during fast forward or rewind operations REC Recording be started REC MUTE This enables unreca rded blanks to be created betwee programs for con venient play f ngtions MS SKIP INDEX SCAN D MS SKIP switch This switch is for skipping the progam now being heard and finding the start of the next When this switch is depressed during play ON MS SKIP indicator lights and then the fast forward swith rewind switch when traveling in other direction i depressed play starts from the next program Whenever is a long interval between tape programs unrecorded blanks of over 8 seconds the tape is automatically fast forwarded and playback
28. amp Description RCP 009 RD1 4PMOD0J RD1 2PS 2R2J SEMICONDUCTORS Mark Part No VR101 Semi fixed 22k B SPEED R101 R104 R107 R110 R105 Symbol amp Description 2007 2012 WO3B WO3C RCX 010 RCX 011 RCX 012 RCX 013 SWITCHES Mark Part No 1 101 1C102 D101 D102 H101 H102 Hall device Symbol amp Description RESISTORS Note When ordering resistors conv rt the resistance value into code form and then rewrite the part no as before Mark Part No Symbol amp Description RCP 009 VR201 Bemi fixed 22k B TORQUE ADJ TAKE UP RCP 056 VR202 Bemi fixed 100k B SPEED ADJ FF REW RD1 4PMODDOJ R201 AROA R205 R207 R208 R209 RD1 2PS 1R8J R203 SEMICONDUCTORS Mark Part No Symbol amp Description kk PA 2009 201 2010 202 2SA934 Q201 2SA881 250882 0202 25 2497 2501189 25 2458 9205 25 1173 0204 Mark Part No Symbol amp Description REE 051 Insulatdf RKH 005 Insulator RBA 026 Screw Reel Motor Drive Assembly B Note When ordering resistors conv rt the resistance value into code form and then rewtite the part no as before Mark Part No Symbol amp Description RSG 116 RSH 063 5101 5102 5105 S106 Push switch 103 Slide switch Reel Motor Control Assembly B RWX 491 CAPACITORS Mark Part No Symbol amp Description
29. basic schematic diagram but the actual circuit may vary due to improvements in design e7 REMOTE ONTROL SOCKET a UT y he Lors rare HILL 4444 4 PT TUT TT x 4 TUE L DOLBY Ass y R 601 9 DOLBY R 602 2 6 3i9 1 MOTHER Assy 3 3 RWX 503 2SA933LN or 2SAI015 or e 2SA937 or 25A1127NC al 05307 IC3O MB7ALSI22 or HD7ALSI22 1 2 303 00LBY or SN74LSI22 DM74LS122 s ad o di ord 4 0308 309 250189 or 2502497 250882 CAPSTAN CONTROL Ass y 3 1C501 509 512 0314 315 319 2SCITAOLN or 25C2634NC o 25CiB 5 or 25c2021 or KTCIBIS 0320 329 330 D323 325 152473 J US1040 20303 304 ROS 6EB Q311 313 346 c34a 25D880 or 250313 933 320 sai 22 Eza 053 M6 Q320 2SAS33LN or 254108 or 254937 or 2SAII27NC or ITCH Ass y RWS 140 25C2060 or KTAIOIS 302 904 909 910 be3 25C2673 or 2SCI3BINC 5908 5906 5904 s902 ECTION 5907 REW S906 PAUSE 903 REC S90 stor F
30. conjunto R de DOLBY NR CABEZA DE GRAB 1339 N me cetro 7 EEEN 12 5 COMPROBACI N DEL ECUALIZADOR VASO1 canal V vRB02 canal der CABEZA REPRODUC f DE REPRODUCCION Ix ses Ajuste Modos Reproducci n FWD rer o 7 REV m Cinta de prueba STD 341A posici nes 333Hz y 6 3kHz Procedimiento Volt metro de CA Terminales OUTPUT Ajustar el VRBOl canal y el vR5og a dem canal der del conjunto del AMP de modo que SALIDA el volt metro de CA indique 1 2dBv 871 mV 9 931 50k 1 4A 208 Nivel de 333Hz 6 3kHz 0 5dB 2dB Procedimiento Poner en reproducci n la cinta de prueba en las posiciones de 333Hz y 6 3kHz Comprobar que la diferencia entre los dos niveles de salida no soprepase 40 5dB 2dB TP603 VR603 TP603 VR502 Canal der Ajuste del nivel de reproducci n RS Ajuste del nivel de reproducci n TPG TP602 lt Conjunto del Dolby NR Canal der Fig 12 4 Puntos de ajuste 62 Paso 3 Ajuste Modo Grabaci n pausa Se al de entrada 700Hz 40dBv desde INPUT 10 mV Voltimetro de CA TP603 del conjunto en escala de mV DOLBY NR VA DE ENTRADA CABEZA DE GRAB ENTRADA
31. fonctionnement sur FF avance rapide R gler le VR202 de mani re ce que le fr quencem tre indique 72 Hz 2 Hz R gler le mode de fonctionnement sur REW et v rifier alors que l indication du fr quence m tre n est pas sup rieure 72Hz 5Hz Moteur d entra nement du m canisme de bobinage S ow a Z LE GNo 1 f 1 f gt 1 v SR UI ANT Moteur d entrainement Y SK du cabestan 4 p AY lt Raccorder le fr quencem tre et de rebobinage de la bande Introduire un dynamom tre a cassette R gler le commutateur DIRECTION sur FORWARD et le mode de fonctionnement sur PLAY R gler le VR201 de mani re ce que le couple d enroulement soit gal 45 5 g cm Fig 11 5 R gler le commutateur DIRECTION sur REVERSE V rifier si le couple d enroulement est gal 10 g cm Fig 11 6 Dynamom tre Fig 11 6 R glage du couple d enroulement 11 6 R GLAGE DE LA VITESSE DE LA BANDE 1 Raccorder le fr quencem tre la borne OUT PUT L ou R 2 Introduire la bande d essai STD 301 le d but de la bande tant dirig dans le sens inverse 3 R gler le commutateur DIRECTION sur FORWARD et le mode de fonctionnement sur PLAY 4 R gler le VR101 de mani re ce que le fr quencem tre indique 3005 10Hz au d but du rebobinage de la bande 5 R gler le commutateur DIRECTION sur REVERSE Le fr quenc
32. is operated for unattended recording or play about 7 seconds and then fast forwards the tape When back using the timer used in combination with the rewind lt lt switch this REC For automatically recording at the ime set on Operation can be performed with the tape being rewound the timer OFF For when the timer is not being used 9 INPUT level controls PLAY For automatic playback at the time sel on the These are used to adjust the input signal level during recording The left and right controls are linked and rotate together but the inside left channel and outside MPX FILTER switch a right channel controls can be used separately Depress this when recording an FM stereo bra d gst using MIC jacks the Dolby noise reduction system Insert the microphone plugs L and into these jacks 5 DOLBY NR B C type selector when recording with microphones Depress this to select type B or type C Dolby N system O PHONES jack with the Dolby NR switch in the ON position T indi Insert the plug of the stereo headphones into this jack cator B or C lights MODE selectors DOLBY NR ON OFF switch When the tape has been wound up on one of the Depress this to the ON position when Su playing reels it automatically stops traveling one side back a tape with the Dolby noise reduction systern travel 22 The tape starts moving in the forward direction the direction is reversed at the en
33. level control so that the level meter reads 0 VU Then check the AC mV meter reads 5 2dBv 2dB 48 Proc dure 1 R gler ATT de mani re ce que le millivolt m tre alternatif 2 indique 2 2dBv 775mV 2 R gler VR601 de mani re ce que le milli voltm tre alternatif 1 indique 2 2dBv 775mV Etape 3 Montage eoa Enregistrement pause Signal d entre 700Hz 40dBv 10mV de INPUT Millivoltm tre TP603 de l ensemble alternatif Dolby NR porsche e e d Proc dure 1 R gler la commande de niveau d entr e INPUT de mani re ce que le millivoltm tre alternatif indique 32 6dBv 23 4 mV 2 Enclencher le circuit Dolby NR ON et le r gler sur la position C 3 R gler VR603 de mani re ce que le millivolt m tre alternatif indique 21 6dBv 83 mV 12 2 R GLAGE DE L AZIMUT DE T TE Montage Ea Lecture FWD et REV Bande d essai STD 341 A partie de 10kHz Millivoltm tre Bornes de sortie alternatif OUTPUT VR501 VR502 Maximum Tee de lecture f 7 3 Sortie OUTPUT Tornevis Fig 12 2 Pr r glage d azimut 52 Proc dure Lire la bande en sens avant et en sens arri re R gler la vis d azimut de t te sur la position donnant le niveau de sortie maximum 12 3 R GLAGE DE L ENTRA NEMENT DE LA BANDE 1 Charger une
34. the DIRECTION switch to REVERSE Adjust the azimuth screw using a screwdriver as shown in Fig 11 2 3 so that the distance B between housing and rotating base is 1 5 mm Rotating base REC PB head Housing Fig 11 2 Azimuth adjustment point Screwdriver Fig 11 3 Azimuth preadjustment 11 3 TAPE TRANSPORT ADJUSTMENT Ti 2 3 Load a mirror equipped cassette half Set the DIRECTION switch to FORWARD and then the mode to PLAY Adjust the adjust nut so that no curling takes place on REC PB head guide and erase head guide as shown in Fig 11 4 Set the DIRECTION switch to REVERSE Adjust the adjust nut so that no curling occurs on REC PB head guide and dummy head guide Play a tape in both FORWARD and REVERSE directions and check that no curling on tape is found Check point l Grete IF 4 M N Screwdriver e Fig 11 4 Tape transport adjustment Using STD 608A with DOLBY NR ON B type tes 3dB 4 5dB 4dB b i AE 3dB 1kHz 63Hz V25Mz 333Hz 2kHz 10kHz Using STD 608A with DOLBY NR ON C type N 3dB 4 5dB T 4dB 1kHz 63Hz 425 33392 2kHz 10kHz Using STD 603with DOLBY NR OFF 333Hz 63Hz 128Hz 1kHz 2kHz 12kHz Using STD 603 with DDLBY NR ON B type i i 63Hz 12899 333Hz 1kHz 12kHz
35. 040 a 3 2 Ev FAY T I I y TT 11 TT 305 PD6006 nes 4 11 i POPES _ 9 9 5 3 2 2 1 Dio 4 OTHERS 5 tolerance unies orheraise notet b Signal route N3 4 8 M v Adjusting point ace The A mark found on some comog ent lits indicates the APA portance of the safety factor of the when replacing De sure to use Darts of dentica designatin without voltage SOW ergen o stectrofyne capacitor 3 vo DC woitage 10 11 12 NOTE The indicated semiconductors are representative ones oniy Other alternative semiconductors may be used and are listed in the parts list JACK Ass y 11272 INDICATOR Ass y Ms e LEDO Lud I a AN NEC 2 3042 0 0 PAUSE 4 Y LEDIC6 A xim 4 o 1 s 9 DOLBY Ass y F D 602 3 ee 44 A 1 V LEDIOI ff0 LEOWOB RAW 163 1 Ca METAL CON TROC Ass y A 4 DOR 8 DOLBY s 9 5 Y 99 f Doe ci Li 9 sere _ e 4
36. 2dBv 1 5dB 653 mV a 268550 i 462 mV 4 Poner la cinta de prueba STD 604 y el inter ruptor DOLBY NR en la posici n ON y grabar y reproducir se ales de entrada en la STD 604 Confirmar que el volt metro de CA indique 5 2dBv 1 5dB 653 mV a 462 mV EPH VR301 VR304 kn Conjunto del DOLBY NR canal izq Conjunto del DOLBY NR canal der Conjunto de tomas L302 L301 Fig 12 6 Puntos de ajuste
37. 673 25 1383 xx 250880 Q311 0313 0316 250313 tk 2902487 Q308 Q309 2501199 250882 Mark Part No Symbol amp Description 152473 0301 0303 0307 0317 D313 051040 0314 0320 0323 DB25 D329 0330 0333 D335 1K34A 0322 1K60A 0A90 x S3VC10 D317 s3vc10R D316 S2VC10F D318 x wo3e D319 WO3C A BZ 120 ZD301 8z 081 ZD302 RD5 6EB2 20303 20304 SWITCHES AND COILS Mark Part No Symbol amp Description RSG 126 S301 S303 Push switch IB RTF 089 L301 L302 MPX filter RTD 027 L306 OSC coil RTF 090 303 L304 Coil 36mH RTF 057 L305 Line coil OTHERS Mark Part No Symbol amp Description RKH 005 Insulator wafer A REE 051 insulator wafer RKP 349 CN317 Connect r socket assembiyi 11P RKP 348 CN316 Connect r assembly SF RKB 018 Terminal LINE RSS 033 401 401 assembly 059 FU301 Fuse 12A REK 055 FU302 Fuse 24 RBA 039 Special screw NOTES 10 ELECTRICAL PARTS LIST e When ordering resistors first convert resistance values into code form as shown in the following examples Ex 1 When there are 2 effective digits any digit apart from 0 such as 560 ohm and 47k ohm tolerance is shown by J 5 and K 10 5608 47h 0 50 19 RD APS HEM LA RES RD APS BAG RN2H GARE K RSIPOMOK Ex 2 When there are 3 effectiv
38. 7 5 4 4 L 270 1K60A or Y Assy R RWX 499 12 Lo 9 A B 48 de 2 2 wt jue err CONNECTOR Ass y AMP Assy RWF 095 T Q508 0502 0504 r que F806 14 25C17 25 202 pa ae T9 LT AX T Yt mer OU ER lt he DN LS Lg dr MOTHER Ass y RWX 503 Q330 9306 9307 1C306 Q309 4381 9311 Q304 a305 9320 Q319 a316 Ic302 1C3OB Q303 IC307 1C301 1C304 10303 Q327 Q323 130 1301 1 302 30 VR302 L306 VvR30 VR305 am p I i Q302 307 3147315 319 0324 327 On dts LE 0330 31 LINE PUT UME OUR eut resi 25G1740LN 0r 2802634N G 0r 28C1815 419 O gt Ok Car A t TON TS EN ad H 2596 17 mi y we fL EUN 4 por 213 3 Tos CN316 D Lok vie ete 64 7 o CRT 4 nan e 2 Qao tds E E sim mer C xp 25 0 DT L CN 312 2 i 1 7 Le ES jl 2 e s amg f N ate 3 i i 3 02 94 4 r ATK A oie 8 7 mra sto ff WR 4 pales sas x E ssh eo o 301 t
39. A INPUT Remote Control Assembly Mark Part No Symbol amp Description RKP 222 Remote control socket Function Switch Assembly RWS 140 Mark Part No RSG 063 56 088 RKP 351 Symbol amp Description S901 5902 S904 5909 5910 Function switch S903 5905 5908 Push switch CN901 Connector socket assembly 12P RESISTORS Note When ordering resistors convert the resistance value into code form and then rewrite the part no as before Mark Part No Symbol amp Description RCP 155 VR301 VR302 Semi fixed 150k B RCP 200 BIAS ADJ RCP 188 VR305 Semi fixed 1 5k B OSC LEVEL ADJ RD1 4PMODOJ R303 R307 R315 R343 R345 R359 R363 R367 R371 R372 R374 R376 R382 R395 R398 R400 R407 409 8411 R421 R424 R427 R429 R432 R442 R444 R450 RMB8 103J B R425 B resistors network 10k RM9 103J B R426 9 resistors network 10k RSIPF101J R314 A RD1 2PSF102J R360 R361 RD1 2PSF820J R373 SEMICONDUCTORS Mark Part No Symbol amp Description MB74LS122 1C301 0741 5122 5 741 5122 DM74LS 122 kK PD6006 1C305 kk PA3010 04 3001 1C303 IR 2408 1C 309 M5218L 1C302 TC4066BP 1C306 8840668 HD14066B TO062504P 1C307 1C308 2SA933LN Q301 Q320 25 937 2541015 2SA1127NC 28C1740LN 0302 0307 0314 0315 0319 25 2021 0324 0327 0330 0331 25 1815 2SC2634NC 2SC2060 0310 2562
40. A RESPUESTA EN FRECUENCIA DE GRABACION REPRODUCCION Ajuste Modo eee Grabaci n Grabaci n reproducci n Se al de entrada 333Hz 30dBv desde INPUT 31 6 mV 6 3kHz 30dBv 31 6 mV Cinta de prueba STD 608A Volt metro de CA Terminales OUTPUT escala mV VR DE ENTRADA 333Hz 3 OR 44 ev th m m m 63 CABEZA DE GRAB ENTRADA 333Hz L e 6 30dBv 5 64 REV FWD de 6 3kHz nivel de 333Hz 198 8 sue 4 SALIDA VR301 canal CABEZA DE REPRODUC x VR303 canal gt Procedimiento 1 Ajustar el control de nivel de entrada de modo que el volt metro de CA indique 27dBv 44 6 mV 2 Ajustar el CT 6R en la posici n FWD y grabar y reproducir se ales de entrada 333Hz y 6 3kHz en la STD 608A Ajustar el VR301 canal izq y el VR303 canal der de modo que la diferencia entre ambos sea de 1dB tl Como indica en las especificaciones de la figura 12 5 comprobar que el rendimiento satisfaga dichas especificaciones Respuesta en frecuencia Utilizando la STD 331A con el interruptor DOLBY NR en la posici n OFF El canal izquierdo se compensa en 1dB a 63Hz y a 0 5 126Hz debido al efecto de aislamiento 63Hz 125Hz 333Hz 2kHz 10kHz Repuesta global en frecuencia Util
41. C NICOS MM 58 8 SCHEMATIC DIAGRAM 27 12 AJUSTES EL CTRICOS MM 60 PIONEER ELECTRONIC CORPORATION 4 1 Meguro 1 Chome Meguro ku Tokyo 153 Japan U S PIONEER ELECTRONICS CORPORATION 85 Oxford Drive Moonachie New Jersey 07074 USA PIONEER ELECTRONIC EUROPE Luithagen Haven 9 2030 Antwerp Belgium PIONEER ELECTRONICS AUSTRALIA PTY LTD 178 164 Boundary Road Braeside Victoria 3195 Australia YZ 1981 Printed in Japan CT 6R 1 SPECIFICATIONS Systems Compact cassette 2 channel stereo Motor DC servo motor x 1 For driving the capstan DC high torque motor x 2 For driving the reel Heads Ribbon Sendust recording playback head x 1 Erasing head x 1 Fast Winding Time Approximately 90 seconds C 60 tape Wow and Flutter No more than 0 04 WRMS Frequency Response 20dB recording Normal LH tapes 20 to 16 000Hz 25 to 14 000Hz 3dB Chromium dioxide tape 20to 18 000Hz 25 to 16 000Hz 3dB OdB recording 25 to 10 000Hz Metal tape 20 to 20 000Hz 25 to 17 500Hz 3dB OdB recording 25 to 15 000Hz Siganl to Noise Ratio Dolby NROFF More than 59dB Dolby NRON B Type more than 69dB C Type more than 79dB at 5kHz Harmonic Distortion No more than 1 2 0dB Input Sensitivity Maximum allowable input Impedance
42. CX 010 Atos it P AZOTA SR LEX P 5 06 7 O wO 2 T i 4 22K 8 7 e T il 1 ry Le 1 1 u in i 4 4 bomi 1 N 7 I 4 me r t 20889 4 5105 J 88 parin s HA AM CASSETTE 0047 407071 TAPE Har F DETECTOR TAPE DETECTOR j SELECTOR S LECTOR i wose 22 eto ENT mc 1 ET ex S HA o SW x METER DRIVE Ass y SOO Jack Assembly RWX 498 CAPACITORS Mark Part No Symbol amp Description RESISTORS Note When ordering resistors convert the resistance value into code form and then rewrite the part no as before Mark Part No mbol Discriptio CEA 010M 50 801 804 Sy 100M 16 C807 C808 C811 C814 RCP 009 VR501 VRB02 Semi fixed 22k B CEA 101M 18 C815 P B LEVEL CCDSL 101K 50 C805 C806 C809 C810 CKDYF 473Z 50 C816 RD1 4PMOODJ R501 R566 RESISTORS SEMICONDUCTORS Note When ordering resistors convert the resistance value Mark Part No Symbol amp D cription into code form and then rewrite the part no as before NJM4558D 1C501 i AN6552 Mark Part No Symbol amp Description BA4558 RD1 4PMOODJ R801 R828 25 2240 0501 _ 0804 SEMICONDUCTORS wk 2SC1740LN 0505 0814 i Oe 25 2021 Mark Part N
43. INPUT 333Hz 10dBv 316mV Millivoltm tre alternatif TP601 de l ensemble Dolby NR de gauche L TP601 de l ensemble Dolby NR de droite R 0 9 Eos 77 Proc dure R gler le niveau d entr e INPUT de mani re ce que l indicateur de niveau affiche 0 VU Con 28 tr ler alors que le millivoltm tre alternatif indique e 5 2dBv 2dB 57 11 AJUSTES MECANICOS 11 1 COMPROBACI N DE LA PRESI N DEL RODILLO DE PRESI N 1 Establecer el magnet fono en el modo de reproduci n Avance FORWARD y Rebo binado REVERSE 2 Presionar con cuidado contra el brazo del rodillo de presi n con el calibrador de tensi n REY pieza n mero GGK 047 y leer el valor cuando E Destornillador de el rodillo de presi n para a girar Si el valor no cebera horizontal est dentro del margen de 250 400g re cambiar el meulle del rodillo de presi n Fig 11 3 Preajuste del acimut 11 3 AJUSTE DEL TRANSPORTE DE LA A CINTA 1 Insertar un casete provisto de espejo Calibrador de tensi n 2 Poner el selector de DIRECTION en la posici n Pieza no GGK 047 E FORWARD y el de modo en la posici n PLAY 3 Ajustar el tornillo de ajuste de modo que no haya enrollamiento en la qu a de la cabeza de GRAB REPROD y gu a de la cabeza de Rodilio de borrado como se muestra en la Fig 11 4 presi n 4 Poner el selector de DIRECTION en la posici n
44. INTA 1 Insertar un casete provisto de espejo 2 Poner el selector de DIRECTION la posici n Calibrador de tensi n Pieza no GGK 047 FORWARD y el de modo en la posici n PLAY f 3 Ajustar el tornillo de ajuste de modo que li no haya enrollamiento en la qu a de la cabeza de GRAB REPROD y gu a de la cabeza de Rodillo de borrado como se muestra en la Fig 11 4 presi n 4 Poner el selector de DIRECTION en la posici n REVERSE 5 Ajustar el tornillo de ajuste de modo que a no haya enrollamiento en la gu a de la cabeza de GRAB REPROD y gu a de la cabeza ficticia Cabeza de borrado 6 Reproducir una cinta en las direcciones de Fig 11 1 Ajuste de la presi n del rodillo de presi n avance FORWARD y de rebobinado REVERSE y comprobar que no se enrolla 11 2 PREAJUSTE DEL ACIMUT 1 Poner el selector de DIRECTION en la posici n de avance FORWARD y el de modo en la Punto de comprobaci n posici n STOP 2 Ajustar el tornillo del acimut O empleando un destornillador de cabeza horizontal como se muestra en la Fig 11 2 3 de modo que la distancia A entre el emplazamiento y la base de rotaci n sea de 1 5 mm Casette provisto 3 Poner el selector de DIRECTION en la posici n Y de espejo de inversi n REVERSE fii 4 Ajustar el tornillo del acimut empleando Ww LLL NE un destornillador de cabeza horizontal como se muestra en la Fig 11 2 3 de modo que la
45. R assembly io gt 3 DOLBY NR ON _ 4 r Q C type position GE x AN eran Procedure 1 Adjust the INPUT level control so that the AC mV meter reads 32 6dBv 23 4 mV 2 Set the DOLBY NR switch ON and C type position 3 Adjust the VR603 so that the AC mV meter reads 21 6dBv 83 mV 12 2 HEAD AZIMUTH ADJUSTMENT Setting Mode ag N Playback FWD and REV Test tape STD 341A 10kHz portion AC mV meter OUTPUT terminals VR501 VR502 Max y ASE b E REV FWD Screwdriver Fig 12 2 Azimuth preadjustment Procedure Play a tape in both forward and reverse direc tions Adjust the head azimuth screw to the posi tion of maximum output level 12 3 TAPE TRANSPORT ADJUSTMENT 1 Load a mirror equipped cassette half 2 Set the DIRECTION switch to FORWARD and then the mode to PLAY 3 Adjust the adjust nut so that no curling takes place on REC PB head guide and erase head guide as shown in Fig 12 3 4 Set the DIRECTION switch to REVERSE 5 Adjust the adjust nut so that no curling occurs on REC PB head guide and dummy head guide 6 Play a tape in both FORWARD and REVERSE directions and check that no curling on tape is found Capstan Check point 2 ow Z V LT Mirror pM Mirror equipped 9 cassette half
46. R CONTROL lt WT LAR 1 N ut ye AD x Y ver T se tte EL _ U 1C 202 Q 201 202 0204 28C 1173 0205 2502458 Q204 205 5 Q 201 254934 9202 25 25 25 25 25 25 25 2SA 2SC1 25 25 25 2 25 1 l Apprearance of Transistors and ICs Lot No N Type No N Suffix Lot No hre UN hFE hre Lot No hre Type No 25 2458 25 2497 25 2673 hee Type No 250313 250880 25 1173 nee 2SD882 Type No _ hre 2SD1189 Type No PA2007 PA2009 PA3010 TD62504P TD62507P IR2E02 PA2010 PA2012 PD6006 PM3001 HA11226 TC4066BP MB84066BM HD14066B 7415122 HD74LS122 SN74LS122 DM74LS122 1R2408 AN6552 BA4558 NJM4558D M5218L 9 Capstan Control Assembly B RWX 488 CAPACITORS Symbol amp Description Mark Part No COMA 822K 50 CEA R47M 50 CEA 100M 16 CEA 100M 25 CQMA 473K 50 CQMA 272K 50 CQMA 273K 50 CKDYF 4732 50 CKDYF 1032 50 CKDYF 102250 RESISTORS C101 C104 C114 C107 C109 C110 C112 C103 C102 C117 C106 C111 C105 Note When ordering resistors convert the resistance value into code form and then rewrite the part no as before Mark Part No Symbol
47. REVENT DETECTOR FWD HOLE NO HOLE 103 FWD REV SELECTOR FWD REV 105 AUTO TAPE SELECTOR NORM HIGH 5106 AUTO TAPE SELECTOR CLEANING Cr02 ON METAL OFF The underlined indicates the switch position This is the basic schematic diagram but the actual circuit may vary due to improvements in design Jo EC TI 1K34A or e 1K6OA or 0A 90 VR604 REC LEVEL ADJ I REP 032 Tess 6 933LN 2SA937 i er 2541015 D602 605 606 CAPSTAN CONTROL Ass y DRE SSS ane T E E r l 02 103 NOTE The indicated semiconductors are repr gentative ones only Other alternative semiconductors be used and are listed in the parts list r CAPSTAN MOTOR Wb COL 41 T RXX 338 soi n 4 X gt X Mm ELI 102 010 les or 01 TOI RCX 012 C RCX 013 CASSETTE DETECTOR ERASE PREVENT DETECTOR FWD E e 880 116 FWD REV SELECTOR RSH 063 i k _ een Ri er me 9 I tt VF Ferr 2 1 8 3 10 9 T 5 11 6 MOTHER 317 1 11 REEL MOTOR CONTROL RWX 494 VR202 spg CP 054 MOTHER Ass y 316 14 5 4 C 2 A 2 lt A 2 vi VR20 TAKE uP TORQUE ADJ IC 201 RCP 009 PA 2009 MOTO
48. TP601 canai de gauche L Stosa TP601 canal de droite 911 55 VR604 canal de gauche VR603 canal de droite RI Entr e INPUT T 333H7 10dBv 316mV T te de reproduction fv Ses J TP601 canai de gauche 171 TP601 de droite 81 u 5 2dBv 0 54V CT 6R Proc dure 1 Installer la bande d essai STD 608A et r gler ee le niveau d entr e INPUT de mani re a ce J que le millivoltm tre alternatif indique 5 2dBv 549mV 2 Placer le commutateur Dolby NR sur la posi L tion ON enclench Placer le 6 en posi gt tion de d filement avant FWD puis enre gistrer et lire le signal d entr e sur STD 608A R gler VR604 canal de gauche L et VR604 canal de droite R de mani re ce que le millivoltm tre alternatif indique 5 2dBv Sortie OUTPUT gt 549mV 3 Installer la bande d essai STD 603 et placer le commutateur Dolby NR sur la position ON enclench puis enregistrer et lire le signal m m d entr e sur STD 603 V rifier que le milli voltm tre alternatif indique 5 2dBv 1 5dB 653mV 462mV 4 Installer la bande d essai STD 604 et placer le commutateur Dolby NR sur la position ON enclench puis enregistrer et lire le signal d entr e sur STD 604 V rifier que le milli voltm tre alternatif indique 5 2dBv 1 5dB 653mV 462mV
49. Y N Fo _ e 4 Lt w 5 D 6 1 2 S JOLi m 7121 gt 4 SOLR 329 EI Poo REEL PULSE RAW 161 METER DRIVE Ass y RWX 500 LEVEL METER Ass y 9 LEDIO 1016 hoon RAW 101 3 LKEO1004 es pa read 1008 22 CAPSTAN CONTROL Ase y NI ICIOO 1062 IR2E02 4 2 8 SCHEMATIC DIAGRAM MOTHER 1 3 99503 n 2 1 2 RWX 498 _ M IE gt Jeo PRE sos tin I o n 9 I gs Pat ave 22 58 Lo em diat MU cac Q OI B04 2SC 740LN or _ 125 2024 or 2SCIB15 or 1 REC 25C2634NC R AMP Ass y RWF 095 CONNECTOR Q501 504 5 40 or 0505 514 2SC2021 or 25C2634NC 2SC1740LN or 25 1815 or NJM455 6552 BA4558 C SWITCHES 51 N 304 MPX FILTER N 5302 DOLBY NR 303 DOLBY NR 5701 MODE 5702 TIMER 8 5804 INPUT SELECTOR S90 REC MUTE S902 REC o S903 PLAY N 5904 PAUSE S905 FF OFF S906 REW N OFF 5907 STOP N 5908 DIRECTION N OFF S909 SKIP N OFF 5910 INDEX SCAN N OFF The underlined indicates the switch position This is the
50. d of the tape the tape starts moving in the reverse direction and then stops at the end two side travel The tape is repeatedly played back The word Dolby Noise Reduction Sy and DO are trademark of Dolby Laboratories Corporation stem manufactured under license from Dolby Laboratories Licensing Corporat jon 3 DISASSEMBLY Door Assembly Removal 1 2 Depress the EJECT button and open the cassette holder Remove the door assembly from the hooks attached to cassette holder with the small screwdriver Remove the spring with the small screwdriver Slide the door assembly to the left and remove it pulling toward you Escutcheon Small screwdriver Fig 3 1 Door assembly removal Door assembly amd V MS pe lt Indicator panel KS S fv CER of CZ Sub panel R 4 z 15 Fig 3 2 Disassembly Knobs INPUT Bonnet Removal Remove the four screws Indicator Panel Removal 1 Push the two hooks of the panel stay with the small screwdriver 2 Pull the indicator panel toward you and re move it Sub panel R Removal 1 Pull off the INPUT knobs 2 Push the four hooks of the panel stay with small screwdriver 3 Pull the sub panel R toward you and remove it Switch Escutcheon Removal 1 Push the three hooks 9 of the escutcheon 2 Pull the escutcheon toward you and remove it Mechanism Assembly Removal 1 Remov
51. demi cassette munie d un miroir 2 Placer le commutateur de DIRECTION sur la position FORWARD avant et le mode sur PLAY lecture 3 R gler l crou de r glage de mani re ce qu aucune ondulation ne se produise sur la pi ce de guidage de la t te d enregistrement lecture REC PB ni sur le guide de la t te d effacement comme indiqu la Fig 12 3 4 Placer le commutateur de DIRECTION sur la position REVERSE arri re 5 R gler l crou de r glage de mani re ce qu aucune ondulation ne se produise sur le guide de t te d enregistrement lecture REC PB ni sur le guide de la t te d efface ment 6 Faire d filer une bande en avant FORWARD et en arri re REVERSE et v rifier qu aucune ondulation ne se produit Cabestan Point de controle Mirror Demi cassette quip e d un miroir REV ap fa Tournevis 2 Fig 12 3 R glage de l entra nmement de la bande 12 4 R GLAGE DU NIVEAU DE LECTURE Ce r glage doit tre effectu avec pr cision car il d termine le niveau Dolby NR pendant la lecture 12 R GLAGES LECTRIQUES Pr cautions 1 Les r glages m caniques doivent tre termin s 2 Nettoyer les pi ces suivantes l aide d un b tonnet imbib d alcool t te d enregistre ment lecture galet presseur t te d effacement courroies en caoutchouc et cabe
52. distancia B entre el emplazamiento y la base la cinta de rotaci n sea de 1 5 mm de PS Base de rotaci n Cabeza de ILI e B GRAB REPROD V Destornillador de cabeza horizontal rev O rwo Fig 11 2 Punto de ajuste del acimut Fig 11 4 Ajuste del transporte de la cinta 58 129 CONTR LE DE L INDICATEUR DE NIVEAU Montage Mode Enregistrement pause Signal d entr e INPUT 333Hz 10dBv 316mV Millivoltm tre alematif TP601 de l ensemble Dolby NR de gauche L TP601 de l ensemble Dolby NR de droite R T te d enregistrement f Entr e INPUT X Ww R TP601 canal de gauche L STGSGBA i36mV X TP601 canal de droite RI lg A c Proc dure R gler le niveau d entr e INPUT de mani re ce que l indicateur de niveau affiche O VU Con tr ler alors que le millivoltm tre alternatif indique E 5 2dBv 2dB 57 12 6 AJUSTE DE LA CORRIENTE DE BORRADO Ajuste Modo Re ee Control del nivel de entrada Voltimetro de CA escala de mV Cinta de prueba ENTAADA Procedimiento 1P301 O Grabaci n Min TP301 del conjunto principal STD 604 2 STO 604 ET Th 1 Ajustar el CT 6R en la posicion FWD y el VR 305 de modo que el volt metro de CA indique 180 mV 12 7 AJUSTE DE L
53. e REVERSE 2 Pousser doucement sur le bras du galet pres TWO seur avec l indicateur de tension Pi ce nO Tournevis GGK 047 et observer le niveau de l indicateur J de tension lorsque le galet presseur arr t tourner Remplacer le ressort de pression du 2 a galet presseur lorsque la lecture de l indicateur 113 R GLAGE D ENTRAINEMENT DE LA de tension est inf rieure 250 400g BANDE l Charger une cassette miroir fe 2 R gler le commutateur DIRECTION sur FOR WARD et position de fonctionnement sur Fig 11 3 Pr r glage de l azimut PLAY Indicateur de tension 1 3 R gler l cron de r glage afin que la bande Pi ce GGK 047 A ne s enroule pas sur le guide de la t te de l IE reproduction enregistrement et sur le guide de E la t te d effacement comme indiqu sur la Sp Fig 11 4 J Galet presseur 4 R gler le Commutateur DIRECTION sur N REVERSE 5 R gler l crou de r glage afin que la bande ne s enroule pas sur le guide de la t te de reproduction enregistrement et sur le guide de la t te factice 6 Faire d filer une bande dans le sens avant Cabestan T te d effacement Fig 11 1 R glage de la pression du galet presseur FORWARD et dans le sens inverse RE 112 PR R GLAGE DE L AZIMUT VERSE et s assurer que la bande ne pr sente l R gler le commutateur DIRECTION sur pa
54. e digits such as in high precision metal film resis tors 5 62k2 562 100 5621 RN 4SR BESO F onent parts indicates the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation For your Parts Stock Control the fast moving items are indicated with the marks and wx GENERALLY MOVES FASTER THAN This classification shall be adjusted by each distributor because it depends on model number temperature humidity etc Miscellaneous Parts List P C BOARD ASSEMBLIES Mark Part No Symbol amp Description RWX 503 Mother assembly RWX 498 Jack assembly RWF 095 Amplifier assembly RWX 499 DOLBY NR assembly RWX 500 Meter Drive assembly RWS 139 Switch assembly Switch assembly Remote Control assembly RWS 140 Function Switch assembly RWX 488 Capstan Motor Control assembly B RWX 491 Reel Motor Control assembly B Reel Motor Drive assembly B OTHERS Mark Part No Symbol amp Description RTT 239 T1 Power transformer 120V RSA 046 s1 Power switch A RDG 022 Power cord RDG 030 A REC 376 Strain relief A RWX 109 CR1 Spark killer RWX 234 REL 091 Lamp RAW 161 Level Meter assembly RAW 168 S2 Counter REK 059 REK 055 RXP 111 RXX 333 RPB 094 35 FU301 Fuse 1 24 FU302 Fuse 2A Plunger solenoid Head assembly REC PB Erase head Mark Parts No RAW 163 RKP 354
55. e the counter belt 2 Remove the six screws Bonnet 2 D 46 1 EE 797 113 95 94 MECHANISM ASSEMBLY 1 2 o a O Z lt o gt gt O Hd O n X LL LO i 4 PARTS LOCATION NOTES Parts without part number cannot be supplied e The mark found on some component parts indicates the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation For your Parts Stock Control the fast moving items are indicated with the marks and GENERALLY MOVES FASTER THAN This classification shall be adjusted by each distributor because it d pends on model number temperature humidity etc Front Panel View Knob D REC RAC 193 Knob C FF REW RAC 209 Knob E Knob EJECT RACI RAC 208 Knob INPUT R Door lens RAA 361 PA Knob INPUT L Switch escutcheon T uw Knob MODE RNL 338 TIMER E RAA 359 Sub panel R RNL 380 Door panel assembly Knob E RXB 601 RAC 192 Knob POWER Kno D PLAY STOP RAC 195 210 Knob S DIRECTION Indicator panel 211 RNL 358 Front View with Front Panel Removed Level meter assembly RAW 161 F cti n switch assembly 5 40 Counter RAW 168 Variable resistor INPUT RGV 096 Jack assembly RKN 075 Rotary switch
56. e torsi n Fig 11 6 Ajuste del par de torsi n de arrastre 11 6 AJUSTE DE LA VELOCIDAD DE LA CINTA 1 Conectar el frecuencimetro al terminal de salida OUTPUT L izquierdo o R derecho 2 Cargar la cinta de prueba STD 301 y establecerla en el principio de REW 3 Poner el selector de DIRECTION en la posici n FORWARD y el de modo en la posici n PLAY 4 Ajustar el VR101 de modo que la indicaci n del frecuenc metro est dentro del margen de 3005 10Hz al principo del rebobinado de la cinta 5 Ponerelselector de DIRECTION en la posici n REVERSE y hacer para que la indicaci n del frecuenc metro est dentro del margen de 3000 20Hz al principo del rebobinado de la cinta Conjunto de contro del motor del eje de arrastre Conjunto de VR201 VR202 control del ZE I gt motor del n 1 m VR101 c 3 E HET mn Fr D kk I Fig 11 7 Ajuste de la velocidad de la cinta 11 7 COMPROBACI N DEL PAR DE TORSI N DE TRANSPORTE R PIDO FAST 1 Montar un casete tipo medidor del par de torsi n 2 Poner el selector de DIRECTION en la posici n FORWARD y el de modo en la posici n FF 3 Comprobar que el par de torsi n de FAST est dentro del margen de 100 30 g cm en la condici n descrita en el paso 2 de arriba 4 Poner el selector de modo en REW y esta vez comprobar que el par de torsi n de FAST est
57. em tre doit indiquer 3000 20Hz au d but du rebobinage de la bande Moteur d entra nement du cabestan Moteur d entra nement VR201 VR202 ZE D lt gt du m canisme AL m de bobinage 22 1 Fig 11 7 R glage de la vitesse de la bande 11 7 VERIFICATION DU COUPLE RAPIDE 1 Introduire un dynamom tre cassette 2 R gler le commutateur DIRECTION sur FORWARD et le mode de fonctionnement sur FF avance rapide 3 V rifier si le couple rapide FAST est gal 100 30g cm lorsque l appareil est r gl de la mani re indiqu e ci dessus dans le chapitre 2 4 R gler le mode de fonctionnement sur REW et v rifier si le couple rapide FAST est gal 100 30 g cm 11 8 R G LAGE DU COUPLE DE TENSION INVERSE DU SUPPORT DE DE BOBINE 1 Introduire un dynamom tre cassette 2 R gler le commutateur DIRECTION sur FORWARD et le mode de fonctionnement sur PLAY 3 V rifier alors si la tension inverse sur la bobine d rouleuse gauche support de bobine gauche est gale 3 5 1 5 g cm 4 R gler le commutateur DIRECTION sur REVERSE 5 V rifier alors si la tension inverse sur la bobine d rouleuse droite support de bobine droit est gale 3 5 1 5 g cm 11 R GLAGES M CANIQUES 11 1 CONTR LE DE LA PRESSION DU GALET PRESSEUR l R gler la platine de magn tophone sur le mode de reproduction Avant FORWARD et In vers
58. en OdBv 1V Conectar un resistor ficticio de 50Kohmios a los terminales de salida OUT PUT 8 Dejar que el CT 6R se precaliente durante algunos minutos antes de proceder con el ajuste 9 Poner el interruptor de reducci n de ruido Dolby DOLBY NR en la posici n OFF a menos de que se diga otra cosa Equipos herramientas de pruebas requeridos 1 Cinta de prueba STD 331A 222252 Para el prop sito de reporoducci n general STD 341A para el ajuste de reproducci n STD 608A cinta NORMAL en blanco SID 603 3 cinta CrO2 en blanco STD 604 cinta de METAL en blanco 2 Oscilador sonoro 3 Milivolt metro de CA AC mV 4 Atenuador 5 Osciloscopio 6 Resistor de 50Kohmios 1 4W NIVEL dB 100 sec 100 sec 50 sec 100 sec Fig 12 1 Contenido de la cinta de prueba STD 341A 60 12 1 AJUSTE DE DOLBY NR Paso 1 Ajuste Modo ASTA Grabaci n pausa Se al de entrada 700Hz 10dBv desde INPUT 316 mV Volt metro deCA1 TP601 del conjunto escala de mV DOLBY NR canales izq y der TP602 del conjunto DOLBY NR canales izq y der D VRDE ENTRADA 5 CABEZA DE GRAB ENTRADA N di 3 Volt metro de CA2 escala de mV 700H2 10dBv Voltimetro 1 Volt matro 2 1316mV gt 4 A ds 2 nn m 2248 S 288V 0 Procedimiento 1 Ajustar el control de nivel de entrada INPUT de modo que el voltimet
59. ence level 3 Reference Signal 333Hz 4 Wow amp Flutter JIS 3kHz with acoustic compensation weighted rms value 5 Frequency Response 9 Measured at 20dB level DOLBY NR OFF level deviation is 6dB without indication 6 Signal to Noise Ratio Measured at the third har monic distortion 396 level weighted 7 Sensitivity Input level mV required for reference recording level with input REC controls set to maximum 8 Maximum Allowable input While decreasing settings of input REC level controls and increasing level at input jacks this is the maximum input level mV at the point where recording amplifier output waveform becomes clipped 9 Reference Output Level Playback output level when meter indicates OdB 10 This model doesn t employ with a recording playback connector DIN type 2 FRONT PANEL FACILITIES D POWER switch The power comes on when this switch is depressed it is turned off when the switch is released EJECT switch cassette door The cassette door opens when this switch is depressed NOTE The door will not open when the tape is running or when the pause function is working 9 Tape COUNTER RESET switch The tape counter indicates the tape s traveling position Depress the reset switch before recording or playback to reset the counter to 000 LEVEL meters These indicate the input or output level during recording or playback 5
60. is within 72 Hz 5 Hz Capstan motor control assembly vR2002 IE t IGNO VR201 Aa AK gt Reel motor E D EN FG 6 control assembly MI A AM 4 3 Connect the frequency countor Q Fig 11 5 FF REW Rotating speed adjustment 11 5 TAKE UP TORQUE ADJUSTMENT 1 Mount a cassette type torque meter 2 Set the DIRECTION switch to FORWARD and then the mode to PLAY 3 Adjust VR201 so that the take up torque is 3 45 5 g cm Fig 11 5 Set the DIRECTION switch to REVERSE Check that the take up torque is within 10 g cm Fig 11 6 Torque meter o eR Fig 11 6 Take up torque adjustment 11 6 TAPE SPEED ADJUSTMENT 1 Connect the frequency coun to the OUT PUT terminal L or R 2 Load the STD 301 test tape set it at the beginning of REW 3 Set the DIRECTION switch tg FORWARD and then the mode to PLAY 4 Adjust VR101 so that a reading of frequency counter is 3005 10 Hz at the beginning of tape rewinding 5 Set the DIRECTION switch REVERSE and a reading of frequency Counter is within 3000 20 Hz at the beginning f tape rewind ing Reel motor control assembly Capstan motor VR201 control n 4 assembly NS 7 mid Be AHH Tau U EE Fig 11 7 Tape speed adjustment 11 7 FAST TORQUE CHECK 1 Mount a cassette type torque m ter 2
61. izando la STD 608A con el interruptor DOLBY NR en la posici n OFF 63Hz 125Hz 333Hz 2kHz 6 3kHz 12kHz RS Utilizando la STD 608A con el interruptor DOLBY NR en la posici n ON tipo B 1 2 63Hz 125Hz 333Hz 2kHz 10kHz Utilizando la STD 608A con el interruptor DOLBY NR en la posici n ON tipo C 63Hz 125Hz 33382 2kHz 10kHz Utilizando la STD 603 con el interruptor DOLBY en la posici n OFF Utilizando la STD 603 con interruptor DOLBY NR en la posici n ON tipo B 63Hz 125Hz 333Hz 1kHz 12kHz Utilizando la STD 603 con el interruptor DOLBY NR en la posici n ON tipo C 63Hz 125Hz 333H2 1kHz UN Utilizando la STD 604 con el interruptor DOLBY NR en la posici n OFF amp 4dB 3dB M 125Hz 333Hz 1kHz 2kHz 12kHz Utilizando la STD 604 con el interruptor DOLBY NR en la posici n ON tipo B 4 2kHz 63Hz 125Hz 333Hz 1kHz 12kHz Utilizando la STD 604 con el interruptor DOLBY NR en la posici n ON tipo C s 2kHz 63Hz 125Hz 333Hz 1kHz 12kHz Fig 12 5 Respuesta en frecuencia 12 8 AJUSTE DEL NIVEL DE GRABACI N Ajuste Modo Grabaci n Grabaci n reproducci n Se al de entrada 333Hz 10dBv desde INPUT 316 mV Cinta de prueba STD 608A NORM STD 603 CrO STD 604 METAL Volt metro de CA TP601 del conjunto L escala de mV de DOLBY NR TP601 del
62. lens Door spring Switch escutcheon Knob POWER Indicator panel Knob C FF REW Knob 5 DIRECTION Knob D PLAY STOP Spring Knob INPUT L Knob INPUT R Mechanism assembly Cassette plate assembly Lamp P C B Bracket Panel stay Eject spring Knob EJECT Counter belt Spark killer Power switch Counter Display assembly B Level meter assembly Knob MODE TIMER Function switch assembly Function switch Push switch Knob E Knob D REC Knob E Sub panel R Mother assembly Heat sink Terminal LINE Push switch B Fuse 1 2A Fuse 2A DOLBY NR assembly Connector socket assembly C Amplifier assembly P C B holder Meter drive assembly Switch assembly 51 52 53 55 56 57 59 61 62 63 82288 70 71 72 73 74 75 76 77 78 80 RSB 030 RWX 498 RKN 075 RTT 239 REC 355 RDG 022 RDG 030 REC 376 RKP 222 REC 369 VBZ30PO60FMC VBZ30P080F MC PBZ26POBOFNi PMZ30P060FMC FBT40PO60FMC PMZ30P060FZK VBZ30P060F ZK VBZ40P120FMC REC 378 REC 380 Des ription Variable resister INPUT Rotary switch B Jack assembly Jack assambly Power transformer 120V Slid stopper Main chassis Power cord Strain teliet Remot contro assembly Stud Earth tatminal 2P UL tord clamper Remot control socket Bottom plate A Bottom plate Foot aste mbly Screw Screw Screw Scr w Scr w Scr w
63. ly 93 RNL 247 Thrust receptacle 94 RBH 862 Pinch return spring R 95 RNL 268 Sub pinch arm R 96 RBH 852 Pinch pressure spring R 97 RNL 264 Eject lever 98 Side frame R2 assembly 99 Heat sink B 100 WA017D034D025 Washer Mark No Part No Description 101 YE30FUC Washer 102 YS25FBT Washer 103 ATZ26PO80FMC Screw 104 VCZ30PO60FMC Screw A 105 BMZ30P060FMC Screw 106 VCZ26P100FMC Screw 107 YE25FUC Washer 108 VCZ26P140FMC Screw 109 Screw 110 YE20FUC Washer 111 WA21D040D025 Washer 112 PMA26P050FMC Screw 113 BMZ26P050FMC Screw 114 BMZ26PO80FMC Screw 115 BBZ26P080FNi Screw 116 VCZ30P100FMC Screw 117 RNH 117 Shield plate B NOTES e Parts without part number cannot be supplied e The mark found on some component parts indicates the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation e For your Parts Stock Control the fast moving items are indicated with the marks and x GENERALLY MOVES FASTER THAN x This classification shall be adjusted by each distributor because it depends on model number temperature humidity etc Parts List Mark Part No Description Mark No Part No Description 1 RNL 266 Lock arm 41 REF 022 Steel ball 36 2 RBH 849 Lever spring 42 RNG 306 Housing 3 RNL 265 Eject prevent lever 43 RXX 333 Head assembly 4 RBH 850 Spring 44 Head base as
64. nt tre effectu s dans l ordre indiqu dans ce manuel de service Une modifi cation de cet ordre peut emp cher la r alisation de r glages corrects et peut provoquer une baisse de performance 7 Les niveaux en cours de mesure sont bas s sur OdBv 1V Raccorder une charge fictive de 50 entre les bornes de sortie OUTPUT 8 Laisser chauffer vieillissement le CT 6R pendant quelques minutes avant de proc der aux r glages 9 Placer le commutateur DOLBY NR sur OFF sauf indication contraire Equipements outils d essai requis 1 Bande d essai STD 331A Pour reproduction g n rale STD 341A Pour le r glage de la reproduction STD 608A Bande NORMAL vierge STD 603 Bande CrO2 vierge STD 604 Bande METAL vierge 2 Oscillateur BF 3 Millivoltm tre alternatif mV CA 4 Att nuateur 5 Oscilloscope 6 R sistance 50 kQ 1 4W Niveau dB 10kHz 333Hz 6 3kHz 100 sec 100 sec 50 sec 100 sec 0 20 Fig 12 1 Contenu de la bande d essai STD 341A 12 1 R GLAGE DU CIRCUIT DOLBY NR Etape 1 Montage Mode Enregistrment pause Signal d entr e 700Hz 10dBv de INPUT 316mV Millivoltm tre TP601 de l ensemble alternatif 1 Dolby NR Canaux de gauche et de droite Millivoltm tre TP602 de l ensemble lalternatif 2 Dolby NR canaux de gauche et de droite 23 2 z cC L
65. o Symbol amp Description 25 1815 2SC1740LN 0801 0804 25 2634 25 2021 152473 0501 25 1815 051040 2SC2634NC OTHERS OTHERS Mark Part No Symbol amp Description Mark Part No Symbol amp Description HKN 075 S801 Jack assembly RSR 035 RY501 Relay RTF 085 1501 1502 Peaking coil 3 9mH RTF 084 L503 L504 Trap coil Amplifier Assembly RWF 095 CAPACITORS Mark Part No Symbol amp Description CQSH 471K 50 C501 C502 CEANL 100M 16 C505 C506 CEA 100M 16 C515 C516 C519 C520 C525 C526 CEA 4R7M50 C529 C530 CEA 330M 16 C503 C504 C523 C524 CEA 470M 10 C511 C512 CEA R33M 50 C527 C528 CCDSL 101K 50 C507 C508 CCDSL 220K 50 C509 C510 COMA 103J 50 C513 C514 COMA 153J 50 C533 C534 COMA 183J 50 C531 C532 C537 C538 COMA 182K50 C535 C536 COMA 222K 50 C539 C540 COMA 223K 50 C517 C518 CQSH 471K 50 C501 C502 CEA 010M50 C521 C522 CEA 101M25 C541 37 DOLBY NR Assembly RWX 499 CAPACITORS Mark Part No Symbol amp Description CEA 100M 16 C601 C614 0619 C627 C631 CEA 471M 10 C630 101 16 C604 CEA 010M 50 C610 C625 CEA R47M 50 C621 C CEA R10M 50 C612 615 0616 CEA R33M 50 C617 cells CEA R15M 50 C629 COMA 394K 50 C626 COMA 104K 50 C613 COMA 473K 50 C628 CQMA 183K 50 C620 CQMA 153K 50 C608 C61 6622 C623 COMA 472K 50 C609 624 COMA 182J 50 C602 CKDYF 1032 50 C603 CCDSL 221K 50 C607 COMA 393K 50 C605 CKDYB 222K 50 C640 C641
66. r 34 RBH 864 Height adjust spring R 74 RBF 030 Oil stop washer 35 Erase head base assembly 75 RBH 857 Ratch spring L 36 RNL 262 Stopper 76 RBH 858 Ratch spring R 37 RBA 074 Azimuth screw 77 RXB 552 Sub capstan assembly 38 RBH 853 Azimuth spring 78 RX8 551 Capstan assembly 39 RBH 854 Gear spring 79 REB 467 Capstan belt 40 RXB 556 Selector gear assembly 80 RBF 059 Washer 11 f ES 122 1 Funor lt A de y pe 3VCIOR AA v R ee 2 TW pes ZS 9301 320 AE meu 25A933LN 2541015 or 2541127 254937 or t i 53 K TCIO15 el Q311 313 316 2 im 250880 or 250313 op hi 2420 Borg a REMOTE CONTROL Ass y 10 11 Y Ass y L RWX 499 IC601 tc IC602 VAGOS VREO VREO VR604 060 503 504 997 182473 or 7 1 603 604 1640668 i M8940668M 151080 DB em or A 0140658 wu al Thco E qutt 9 P de Lot 4 di aut i 27 gt 11226 1K60 or 0490 1C601 10603 604 Q601 IC602 VREOS VR6O1 VR602 v8604 Den 2 1 I mes 4 T n 1C603 604 164066BP m s D60t 603 674 807 TRU r ic mh is or MBS40868M 151056 E 1 s al or n wi
67. resumes Indicator Assembly Removal Remove the two hooks 8 of the panel stay and pull the indicator assembly toward you Level Meter Assembly Remove the hook of the panel stay and pull the level meter assembly toward you Control Switch Assembly Remove the two hooks of the panel stay and pull the control switch assembly toward you Control switch assembly Fig 3 3 Disassembly Head Assembly Removal 1 Remove the stopper 2 Turn the head assembly clockwise FWD direction 3 Pull up the head assembly and remove it Head assembly Stopper Fig 3 4 Head assembly removal Capstan Belt Removal 1 Remove the four screws and remove the capstan control assembly 2 Remove the capstan belt from the capstan assembly Capstan belt Capstan assembly Capstan motor control assembly 98 C3 A NA co e Sub capstan assembly Idler pulley assembly Fig 3 5 Capstan belt removal Forward running ind Recording MUTE ind Recording ind par N Gd B N 000 Reverse running ind _ enano MODE 4 4 a PAUSE ind q is 00 i MS SKIP ind see 94 cj DJ ya POWER ind AUTO TAPE SELECTOR EZ Jii ad ind x DOLBY B C type ind INDEX SCAN switch 3 TIMER start switch 4 This plays only the start of the recorded program for This switch
68. ro de CA escala de mV 1 indique 2 2dBv 775 mV 2 Ajustar el VR602 de modo que el volt metro de CA escala de mV 2 indique 2 2dBv 775 mV Paso 2 Ajuste ST Reproducci n Se al de entrada 700Hz 10dBv 316 mV a TPIN del conjunto del AMP Volt metro de CA1 TP601 del conjunto escala en mV DOLBY NR canales izq y der Volt metro de CA2 TP602 del conjunto escala en mV DOLBY NR canales izq y ATT mmo arr O 3 Volt metro 1 DE GRAB Z gt Volt metro 2 E lt 2 248 DL al 775 mV 1 au 248V A 775 Procedimiento 1 Ajustar el ATT de modo que el voltimetro de CA escala de mV 2 indique 2 2dBv 775 mV 2 Ajustar el VR601 de modo que el volt metro de CA escala de mV 1 indique 2 2dBv 775 mV 11 AJUSTES MECANICOS 11 1 COMPROBACI N DE LA PRESI N DEL RODILLO DE PRESI N 1 Establecer el magnet fono en el modo de reproduci n Avance FORWARD y Rebo binado REVERSE 2 Presionar con cuidado contra el brazo del rodillo de presi n con el calibrador de tensi n pieza n mero GGK 047 y leer el valor cuando el rodillo de presi n para a girar Si el valor no est dentro del margen de 250 400g re Destornillador de cabeza horizontal cambiar el meulle del rodillo de presi n Fig 11 3 Preajuste del acimut 11 3 AJUSTE DEL TRANSPORTE DE LA CU C
69. s d ondulations FORWARD et la position de fonctionnement Point de v rification sur STOP f E cr EC AY 2 R gler la vis d azimut O enutilisant un tourne B ud pts vis comme indiqu sur la Fig 11 2 3 FRE o 1 afin que la distance entre le bo tier et la S da e base rotative soit gale 1 5 mm 3 R gler le commutateur DIRECTION sur Cassette miroir REVERSE 4 R gler la vis d azimut en utilisant un tourne vis comme indiqu sur la Fig 11 2 3 afin EH NEE que la distance B entre le bo tier et la base rotative soit gale 1 5 mm Freser Base rotative TZ T te de reproduction lt enregistrement 141 x 228 T LA 9 NI gt gt a 2 L Es 1 5 mm Tis mm S A ELT 6 As CAN b Boitier Te 12 SS Tournevis 6 a ev O 5 gt Fig 11 2 Niveau de r glage de l azimut Fig 11 4 R glage d entra inement de la bande Proc dure 1 R gler ATT de mani re ce que le millivolt m tre alternatif 2 indique 2 2dBv 775mV 2 R gler VR601 de mani re ce que le milli voltm tre alternatif 1 indique 2 2dBv 775mV Etape 3 Montage Mode ate en re Enregistrement pause Signal d entre 700Hz 40dBv 10mV de INPUT Millivoltm tre
70. s de sortie OUTPUT Potentiom tre d entr e INPUT VR Entr e INPUT Sortie IOUTPUTI 7 333Hz 5 5 3048 z hs TEMY 44 54 Entr e INPUT FWD ES Niveau 6 3kHz niveau 333Hz 1dB ti gdB Sortie OUTPUT gt 7 VR301 Canal gauche L VR303 Canal droit R Proc dure 1 R gler le niveau d entr e INPUT de mani re ce que le millivoltm tre alternatif indique 27dBv 44 6mV 2 Placer le CT 6R en position de d filement avant FWD puis enregistrer et lire les signaux d entr e 333Hz et 6 3kHz sur STD 608A R gler VR301 canal de gauche L et VR303 canal de droite R de mani re ce que la diff rence entre les deux soit de 1dB tls dB Comme indiqu dans les sp cifications de la Fig 12 5 et v rifier que les performances correspondent aux sp cifications R ponse en fr quence Utilisation de STD 331A avec Dolby NR DECLENCHE A cause de l effet d isolement le canal de droite est com pens de 1dB 63Hz et de 0 5dB 125Hz a 248 5 2 5dB 2dB 1 63H2 125 2 333Hz 2kHz 10kHz R ponse en fr quence globale Utilisation de STD 608A avec Dolby NR DECLENCHE OR 63Hz 125Hz 333Hz 2kHz 6 3kHz 12kHz CT 6R 129 CONTR LE DE L INDICATEUR DE NIVEAU Montage Mod ss sus ss Enregistrement pause Signal d entr e
71. s does not exceed 0 5dB 2dB 1 j VR502 Reh Y 4 level adj Dolby NRassembly Leh 7 Ey TP601 2 Dolby NR assembly Rch VR501 Lch P B level adj Fig 12 4 Adjustment points Procedure 4 i a Set the test tape STD 608A and adjust the INPUT level control so that the AC mV meter reads 5 2dBv 549mV Set the DOLBY NR switch to ON position Set the CT 6R to the FWD position and record and playback the input signal onto the STD 608A Adjust the VR604 Lch and VR604 Rch so that the AC mV meter reads 5 2dBv 549mV Set the test tape STD 603 and DOLBY NR switch to the ON position and record and playback the input signal onto the STD 603 Confirm that the AC mV meter 5 2dBv 1 5dB 653mV 462mV Set the test tape STD 604 and DOLBY NR switch to the ON position and record and play back the input signal onto the STD 604 Confirm that the AC mV meter 5 2dBvt 1 5dB 653mV 462mV Dolby NR assembly Lch Dolby NR assembly Rch Jack assembly L302 L301 Fig 12 6 Adjustment points 47 CT 6R 12 9 LEVEL METER CHECK Setting MODE Record pause Inputsignal 333Hz 10dBv from INPUT 316mV AC mV meter TP601 of the DOLBY NR assembly L TP601 of the DOLBY NR assembly R gt REC en t u L J Procedure Adjust the INPUT
72. sembly 5 RNL 261 Cylinder 45 RNL 317 Slide plate 6 REB 447 O ring 46 RNH 076 Head base spring 7 RNL 269 Piston 47 Main shaft 8 Connector P C B 48 RBH 860 Arm spring R 9 Cord clamper 49 Arm assembly 10 Side frame L2 assembly 50 RBK 169 Switch lever spring A 11 RBH 351 Pinch pressure spring L 51 RNC 267 Switch lever 12 RXB 550 roller arm assembly 52 RNL 272 REC detector arm D 13 RNL 267 Sub pinch arm L 53 RNL 271 Detector arm 14 RBH 861 Pinch return spring L 54 RBK 170 Switch lever spring B 15 Cam follow lever 55 RNL 273 METAL detector arm 16 RNL 253 Hook L 56 REB 450 Brake shoe 17 RNL 254 Hook R 57 RNL 258 Brake plate L 18 RNL 255 Connection plate 58 RBH 848 Brake spring 19 RNL 306 Pinch plate 59 RNL 259 Brake plate R 20 RNL 305 Actuater 60 RBK 164 Half set spring 21 RNH 077 Change plate 61 RBH 846 Spring L 22 Reel motor drive assembly B 62 RXP 111 Plunger solenoid 23 RXX 336 Reel motor coil assembly 63 RNL 256 Trigger lever L 24 Reel motor P C B 64 RBF 058 Washer kk 25 RXB 548 Rotor assembly 65 RNL 308 Assist gear R 26 RNL 313 Pocket L 66 RNL 307 Assist gear L 27 RBK 167 Pressure spring 67 Pulley shaft 28 RNL 314 Pocket H 68 RXB 570 Idler pulley assembly 29 Holder B 69 RBH 847 Spring R 30 RBA 073 Special nut 70 Chassis assembly 31 RPB 094 Erase head 71 REF 023 Steel ball 4 32 RBH 863 Height adjust spring L 72 REB 260 Stopper 33 Dummy head 73 RLB 434 Guide rolle
73. stan D magn tiser la t te d enregistrement lecture l aide d un d magn tiseur de t te Ne pas utiliser de tournevis magn tis pour les r glages Les r glages et les mesures doivent tre r alis s pour les canaux de gauche et de droite avec la tension d alimentation nominale Les r glages doivent tre effectu s dans l ordre indiqu dans ce manuel de service Une modifi cation de cet ordre peut emp cher la r alisation de r glages corrects et peut provoquer une baisse de performance Les niveaux en cours de mesure sont bas s sur OdBv 1V Raccorder une charge fictive de 50 kQ entre les bornes de sortie OUTPUT Laisser chauffer vieillissement le CT 6R pendant quelques minutes avant de proc der aux r glages Placer le commutateur DOLBY NR sur OFF sauf indication contraire Equipements outils d essai requis 1 Bande d essai STD 331A Pour la reproduction g n rale STD 341A Pour le r glage de la reproduction STD 608A Bande NORMAL vierge STD 603 Bande CrO2 vierge STD 604 Bande METAL vierge 2 Oscillateur BF 3 Millivoltmetre alternatif mV 4 Att nuateur 5 Oscilloscope 6 R sistance 50 k2 1 4W Niveau dB 0 T LITT 100 sec 100 sec 50 sec 100 sec Fig 12 1 Contenu de la bande d essai STD 341A 12 1 R GLAGE DU CIRCUIT DOLBY NR Etape 1 Montage Mode Enregistrment pause Signal d entr e 700Hz
74. ust nut so that no curling takes place on REC PB head guide and erase head guide as shown in Fig 12 3 4 Set the DIRECTION switch to REVERSE 5 Adjust the adjust nut so that no curling occurs on REC PB head guide and dummy head guide 6 Play a tape in both FORWARD and REVERSE directions and check that no curling on tape is found Mirror equipped cassette half fl O REV Screwdriver t w N A Fig 12 3 Tape transport adjustment 12 4 PLAYBACK LEVEL ADJUSTMENT Since this adjustment determines the DOLBY NR level during playback it should be performed precisely Setting Modes uc Playback FWD Testtape 2m STD 341A 333Hz OdB portion AC mV meter TP601 of the DOLBY NR assembly L TP601 of the DOLBY NR assembly R 43 125 PLAYBACK EQUALIZER CHECK D vasa meni Setting LA um Mode Playback FWD and 7 REV deccm Test tape STD 341A 333Hz and mn AN 6 3kHz portions AC mV meter OUTPUT terminals Procedure m no Adjust the VR501 Lch VR502 Rch of 9 the AMP assembly so that the AC mV meter reads 1 2dBv 871mV DEIN A 333Hz level 6 3kHz level 0 5dB 2dB Procedure Play the 333Hz and 6 3kHz portions of the test tape Check that the difference between the two output level
75. v 871mV 12 5 CONTR LE DE L EGALISEUR DE LECTURE Montage Mode e Lecture avant FWD et arri re REV Bande d essai STD 341A parties de 333Hz et de 6 8kHz Millivoltm tre Bornes de sortie alternatif OUTPUT Du m Sortie OUTPUT B5 gn Proc dure Lire les parties 333Hz et 6 3kHz de la bande d essai V rifier que la diff rence entre les deux niveaux de sortie ne d passe pas 0 5dB 2dB VR502 canal de droite R R glage du niveau de lecture nsemble Dolby NR canal de droite R VR501 canal de gauche L R glage du niveau de lecture Fig 12 4 Points de r glage 53 co 000 12 6 R GLAGE DU COURANT D EFFACEMENT Montage Mode s e web Usi Enregistrement R glage du niveau d entr e INPUT Minimum Millivoltm tre alternatif TP301 de l ensemble principal Bande d essai STD 604 Proc dure 1 R gler le CT 6R sur la position de d filement avant FWD et r gler VR305 de mani re ce que le millivoltm tre alternatif indique 180mV Entr e INPUT 12 7 R GLAGE DE LA REPONSE FREQUENCE D ENREGISTREMENT LECTURE Montage Mode Enregistrement Enregistrement lecture Signal d entree INPUT 333Hz 30dBv 31 6mV 6 3kHz 30dBv 31 6mV Bande d essai STD 608A Millivoltm tre alternatif Bome
76. vel level 198 0 5 HEAD fE OUTPUT Y D J L FWD VR301 Leh VA303 Ach Procedure 1 Adjust the INPUT level control so that the AC mV meter reads 27dBv 44 6mV 2 Set the CT 6R to the FWD position and record and playback the input signals 333Hz and 6 3kHz onto the STD 608A Adjust the VR301 Lch and VR303 Rch so that the difference between two 15 1dB dB As listed in the specifications in Fig 12 5 and check to see that performance meets specifica tions Frequency Response Using STD 331A with DOLBY NR OFF However the right channel is compensated by IdB at 63Hz and 0 5dB at 125Hz because of the insulation effect y 63Hz 125Hz 333Hz 2kHz 10kHz Overall Frequency Response Using STD 608A with DOLBY NR OFF 63Hz 125Hz 333Hz 2kHz 6 3kHz 12kHz Using STD 608A with DOLBY NR ON B type Using STD 604 with DOLBY NR OFF 1kHz 63Hz 125Hz 333Hz 10kHz 125Hz 333Hz 1kHz 2kHz 12kHz Using STD 608A with DOLBY NR ON C type Using STD 604 with DOLBY NR ON B type 1kHz 63Hz 125Hz 333Hz 2kHz 10kHz 63Hz 125Hz 333Hz nias 12kHz Using STD 603with DOLBY NR OFF Using STD 604 with DOLBY NR ON C type 2kHz 63Hz 125Hz 333Hz 1kHz 12kHz Fig 12 5 Frequency response 12 8 RECORDING LEVEL ADJUSTMENT Setting Mode

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