Страница 1: ...Deck RS B25 Color K Black Types S Silver Type Area _ ca K Gy TE 22 All European areas except United Kingdom P EKPA8 United Kingdom EH Holland EGA F R Germany XA Asia Latin America Middle East and Afr...
Страница 2: ...uide of Transistors Diodes and IC S ccceccceeeceseeeeeteeeees 32 Cabinet Parts Location included Cabinet Accessories and Packing Parts List ccceeeeee eeeees 32 m LOCATION OF CONTROLS Fast Forward Butt...
Страница 3: ...t sides as shown by the arrows How to insert the head lead fs acess f 2 a ea cone Projection et Gonnecior Match the projections of the 2 connector with the marks printed on rollin the P C B and then i...
Страница 4: ...back signal to the digital frequency counter 3 Measure this frequency 4 On the basis of 3 000Hz determine value by following formula f 3 000 Tape speed accuracy 3000 100 where f measured value 5 Take...
Страница 5: ...z 500Hz 4kHz 8kHz 10kKHz and 12 5kHz signals and record these signals on the test tape Playback the signals recorded in step 6 and check if the frequency response curve is within the limits shown in t...
Страница 6: ...3V Metal position Overall gain Condition Equipment e Record playback mode EVM Electronic Voltmeter AF oscillator Normal tape mode e ATT Oscilloscope e Input level controls MAX e Resistor 6009 Standar...
Страница 7: ...21 of 10401 L CH and 1C402 R CH is 6 1 5dB 753mV Set the NR select switch to OUT and adjust the frequency to 5kHz The output signal level at pin 21 should be 0dB 375mvV Set the NR select switch to B...
Страница 8: ...REC MUTE button is pressed for Approx 4 5sec or over the mode changes to REC PAUSE with AUTO REC MUTE button released and then the level is L 3 When PLAY button is pressed within Approx 4 5sec after...
Страница 9: ...STOP Rew Command Play Stop Command Approx 0 05sec Play Mode L MS Mode L No Symbol Name Function operation 9 PE3 PLAY Plunger L for a short time during PLAY REC PLAY MS changeover Output 1 STOP PLAY S...
Страница 10: ...3 RST Reset Terminal Used to reset the microcomputer when power is thrown in Reset at L level 0 3 volt or less 14 Vop Power Supply Operative on 5 2 volts Terminal 15 PAd Key Input Input of REW Timer R...
Страница 11: ...ct i e ey ay on muting kale tte control 7 00 in a ae F VR301 p eorsie 4 Bias 4 Q 203 204 t aaa Q1 3 4 7 REC AMP Auto rec ae ee esepetes selector f rt I eae Rec mute o eee T301 301 302 Sis ates 1 Norma...
Страница 12: ...ec mute O ghee sie ty Qi3 UL Muting Normal ON 1C901 control NF MECHANISM DRIVE NF e see may 22 I Qi7 QIs SS 1C901 is stor MetaVON Metal ON G 01 2 ee el i i a i aii aS Tay aahey eeJ 20 a i s7oi 1 4 ju...
Страница 13: ...103 104 ERD25FJ472 4 7k R 407 408 ERD25FJ102 1k R719 ERD25FJ103 10k R 53 54 55 56 ERD25FU222 2 2k R 107 108 ERD25FJ560 56 R 409 410 ERD25TJ333 33k R 720 ERD25FJ331 330 R 57 58 ERD25TJ683 68k R110 ERD2...
Страница 14: ...902 903 904 905 906 907 908 909 910 1 133 Diode EGA A SLT5L224S T1 EK XL A SLT5L236S T1 XA A SLT5L230S AC Power Transformer AC Power Transformer AC Power Transformer SWITCHES VARIABLE RESISTORS VR1 2...
Страница 15: ...33 7 pecan pigui 2SDI450R LINE MUTE ON 2SC3311Q METAL ON Q17 18 25BI036R 2833110 RIO4 R98 100K cS SovI 0209 210 ISS254 cig 6c20 C56 0022 0210 C8 0 022 R49 10K 2SCI846R REGULATOR 060 MA4I80M Q602 2SA88...
Страница 16: ...nal e Important safety notice Components identified by A mark have special characteristics important for safety When replacing any of these components use i only manufacturer s specified parts 4 The p...
Страница 17: ...ee pl eh HW DoLsy nr P c B XA EGA EX mark Erase Current 1 Adj Jumer Wir MECHANISM P C B Pine See For E XL XA EGA tH mark areas Record Playback Head BLU BLK 1 For EK mark areas ce WHT 3 GRY SLO 3 e RE...
Страница 18: ...For XA mark areas EH mark areas For E EK XL EGA Normal AC Power Transformer AC POWER TRANSFORMER P C B For EK XL mark areas Erase Current 1 Adj Jumer Wire XA EGA EX mark areas For E C...
Страница 19: ...er to next page C1 Press PLAY button Motor rotates e Main control lever turns clockwise to unlock the main gear slightly 2 PLAY plunger is driven instantaneously 300 msec turning it counterclockwise M...
Страница 20: ...tation is transmitted to main rotating gear this part is unlocked direction Brake rod is pushed up by this part Head base plate is Brake rod pushed up by this part Prop Main gear 9 Main pulley is move...
Страница 21: ...Take Up Relay Gear Tape Pressure Spring 111 RUB353Z 112 RUBGO0001Z 112 1 RUW14Z 113 RJSGO005Z 114 RUBGO0006Z 114 1 RUW12Z Reel Table Gear Ass y R P Head Lead Wire Pinch Roller F Ass y Pinch Roller Spr...
Страница 22: ...ver Spring Plunger Ass y Eject Arm 108 147 Eject Rod 148 Takeup Reel Table A Ass y 106 Supply Reel Table F Ass y 105 105 Head Base Plate Damper Arm 102 152 152 Eject Rod Mecha Angle L 116 a1 Pinch Rol...
Страница 23: ...14 1713 12 10 DOLBY NR P C B XN RS B25 ato 40 REPLACEMENT PARTS important safety notice Components Identified by A characteristics important for sa When replacing any of these only manufacturer s spec...
Страница 24: ...engthen Angle A Black Type XA A Ng NSARIOE 1 QEJ5039C Jack Board 28 SGX7756_ Slide Guide A3 12 LN161253P LED Block Silver Type E EH 13 A SMX888 Spark Killer Cover JAITA ACP 14 SMN1974 Angle for S601 m...
Страница 25: ...n BxH xT 430x99 5x229mm 30Hz 15 000 Hz DIN Gewicht 3 4kg 40 Hz 14 000 Hz 3dB m MESSUNGEN UND EINSTELL METHODEN Anm Wenn nicht anders vorgeschrieben Drehschalter und Steuereinrichtungen auf die folgend...
Страница 26: ...erfolgen NORMALWERT 0 33 3000 10Hz 6 Falls der MeBwert nicht im vorgeschriebenen Bereich liegt bitte mit Bandgeschwindigkeitsregler VR wie in Fig 1 gezeigt einstellen Anmerkung Bitte bei dieser Einhe...
Страница 27: ...echen Sie den Schaltdraht Gesamtfrequenzgang Bedingung MeBgerat Aufnahme und Wiedergabe Betriebsart Normalband Betriebsart CrO Band Betriebsart Metallband Elektronische Voltmeter NF Generator e Abschw...
Страница 28: ...Gesamtfrequenzgangdia gramm fur Metallband liegt Fig 14 Uberpriifen daB die Vorspannung ungefahr den folgenden Werten entsprechen wenn der Bandsortenschalter in die entsprechende Position gestellt ist...
Страница 29: ...hren Abschwacher so abstimmen da8 die Ausgangsspannung an Nadel 7 von IC401 L K und IC402 R K 12 3mV betragt Die Ausgangsspannung an Nadel 21 sollte OdB betragen 375mV Den Dolby Wahlschalter auf B ste...
Страница 30: ...EGLAGES REMARQUES R glage de azimut de V rifier que les t tes soient propres Placer les interrupteurs et les contr les dans les positions suivantes sauf indication contraire V rifier que le cabestan e...
Страница 31: ...e ne correspond pas a la valeur standard r gler au moyen de la vis VR de r glage de la vitesse de d filement indiqu e dans la Fig 1 Remarque Utiliser un tournevis qui ne soit pas m tallique pour le r...
Страница 32: ...e bande CrO Oscillateur Mode de bande m tallique Oscilloscope Contrd les de niveau e R sistance 6002 d entr e MAX Bande talon vierge QZZCRA pour bande normale QZZCRX pour bande CrO QZZCRZ pour bande m...
Страница 33: ...changer la bande talon pour la bande talon vierge QZZCRZ bande m tallique et enregistrer les signaux de 50Hz 100Hz 200Hz 500Hz 1kHz 4kHz 8kHz 10kKHz et 12 5kHz Ensuite lire les signaux et v rifier si...
Страница 34: ...t soit de 12 3mV Le niveau de sortie a la pointe 21 devrait tre de OdB 375mvV Placer l interrupteur de s lection du syst me de r duction de bruit sur B et s assurer que le niveau du signal de sortie a...
Страница 35: ...ETODOS DE AJUSTE Y MEDIDA NOTAS Colocar los interruptores y controles en las posiciones siguientes a no ser que se especifique lo contrario e Asegurarse de que las cabezas est n limpias e Asegurarse d...
Страница 36: ...sta dentro del valor estandar ajustarlo usando el ajuste de velocidad de cinta VR mostrado en la Fig 1 Nota No utilizar destornilladores metalicos cuando ajuste la precision de la velocidad de la cint...
Страница 37: ...cinta normal Oscilador de AF Modo de cinta CrO Osciloscopio Modo de cinta Metal e Resistor 6002 Control de nivel de entrada e Cinta de prueba cinta en MAX blanco de referencia QZZCRA para Normal QZZC...
Страница 38: ...al y cambiar la cinta de prueba a QZZCRZ y grabar sefiales de 50Hz 100 Hz 200 Hz 500Hz 1kHz 4kHz 8kHz 10kHz y 12 5kHz Luego reproducir las sefiales y comprobar si la curva esta dentro de los limites m...
Страница 39: ...or NR esta en OUT Aplicar una sefal de 1kHz a LINE IN Ajustar el ATT de forma que el nivel de salida en el terminal 7 del 1C401 L CH e 1C402 R CH sea de 12 3mV El nivel de salida en el terminal 21 deb...
Страница 40: ...Printed in Japan 850405100 H M S A H...
Страница 41: ...gen gereinigt Abhilfe Fensterleder mit Lackpolierpaste oder Fliissigkeit benetzen und Kopfspiegel fluchig nachpolieren bis Pegelabsenkung behoben ist Dann mit Gaze ev Riickstande abreiben Werksseitig...
Страница 42: ......
