Страница 1: ...N Normal tape 30 13 000 Hz 40 12 000 Hz DIN Signal to noise ratio Dolby NR in 65 dB above 5kHz Dolby NR out 55dB signal level max recording level Fast forward and rewind time Input Head Dimensions Wei...
Страница 2: ...n Fast forward button a Playback button Stop button 3 Pause button Timer stand by button 45 Microphone jacks Record level adjustment QSSeeegeoe Recording indication lamp Dolby noise reduction switch B...
Страница 3: ...ecifications of test instruments 1 Audio frequency oscillator a Oscillation froquency 5Hz 500kHz 5 ranges b Frequency tolerance 3 1Hz c Sine wave Output voltage at 25 C 5 Vrms 10 without load 2 5Vrms...
Страница 4: ...100mVrms c Input impedance 1MQ 40 pF d Frequency measurement range 1OHz 100 kHz e Counting time 0 1 1 10s 6 Wow meter a Measured center frequency range 3kHz 4 b Input level range 30mV 3V c Input impe...
Страница 5: ...f frequency response particularly in high frequency range and an increase in wow due to tape elongation until meas ured values become unreliable Even in such a case when a tape is not used but stored...
Страница 6: ...oller spring in either direction shown OX A en by the arrow until the correct pressure is attained spring Fig 6 Takeup tension 1 Mount cassette torque meter on UNIT Playback mode Equipment 2 Place UNI...
Страница 7: ...Adjust the tape speed adjustment VR shown in fig 20 so that fre quency becomes 3 000 z Tape speed fluctuation Make measurements in same manner as above beginning middle arid end of tape and determine...
Страница 8: ...nection point C See fig 19 on page 12 If the measured value increases at high frequency range Short the connection point B or C Test equipment connection is shown in fig 7 2 Play standard recording le...
Страница 9: ...he bias selector to HIGH confirm that bias current become greater by 25 than that for normal Erase current Equipment VTVM Oscilloscope Resistor 0 12 REMARKS Record mode Be sure the ground end of the m...
Страница 10: ...yback recorded tape and make sure the value at LINE OUT on VTVM becomes 0 42 V f measured value is not 0 42 V adjust VR5 L CH VR6 R CH See Ww fig 20 on page 12 Repeat from step 2 Supply 1kHz signal 24...
Страница 11: ...blank test tape and place UNIT into record mode 3 Supply 1kHz signal from AF oscillator through ATT to LINE IN 4 Adjust ATT so that input level is 20dB below standard recording level standard recordi...
Страница 12: ...g without supplying signal disconnect input plug to LINE IN Rewind to recorded part and playback Measure output signal level and no signal level noise and determine the ratio in decibels dB The value...
Страница 13: ...ADJUSTMENT PARTS LOCATION VR5 R6 V VR3 tment VR jus Tape speed ad F bias current ON or OFF nese mnene Rae ERI IRSA Fig 20 Gunma PNR...
Страница 14: ...R18 56K 30 50V1 Raa cag REZ HeC4B Eec50 C2 4 R10 r 3B RAZ R40 40 zs TaK 390PT a70P 56 1gvi10 820 ak S100 47K 180 eg T 227 6047 680K T50v0 1 Tsov0 33 I R28 5 6K o 5 2 ST 2 80 s7 4 R74 150 C32 0 0056 76...
Страница 15: ...LAMPS FOR CASSETTE COMPARTMENT ERASE HEAD VU METER R URTA 2 2K R76 5 6 if 7 C30 50V1 a 2 NOTE LUG TERMINAL BLU slo SO L BLU Light Blue NIL eee No Color Mark ER WHT ig MU les L YEL WHT VLT Shield Wire...
Страница 16: ...15 EXPLODED VIEWS...
Страница 17: ...16...
Страница 18: ...ELECTRICAL PARTS LOCATION 8 El E2 Boot RS E16 AGA E19 1E S3 te et 7 i E4 E6 Ell E10 5 S6 7 CABINET PARTS Printed in Japan...
Страница 19: ...95A Flywheel Retainer QBT1486DM QBT1536DMA Record Lever Spring QDMO0980XPAB Motor QXP0347B Motor Pulley Assembly RS 630TUSD XSN2 3 Screw 2X3 COMMON QDBO141 Flywheel Belt _ RS 615USD QXG1014E Fast Wind...
Страница 20: ...bly QBN1486 Brake Spring QBJ1975B Erase Safety Lever QXB0438 Push Button Unit QG01303 Push Button QGO1304 Stop Button NOTE 1 Bien s assutet de se conformer a la liste suivante pour les commandes de pi...
Страница 21: ...B Ceramic Capacitor 680 pF ECEA16V33 Electrolytic Capacitor 33uF ECEA16V10 10uF ce 1H330K Ceramic Capacitor 33 pF ECQM05273KZ Mylar Capacitor 0 027 uF ECEA16V47 Electrolytic Capacitor 47 uF ECKD1H561K...
Страница 22: ...D25TJ392 R21 22 ERD25TJ472 8202 1 4W 3 9KQ 1 4W 4 7KQ 1 4W R23 24 ERD25TJ393 R25 26 ERD25TJ683 39KQ 1 4W 68KQ 1 4W R27 28 ERD25TJ562 5 6KQ 1 4W ERD25TJ472 R31 32 R29 30 ERD25TJ562 4 7KQ 1 4W 5 6KQ 1 4...
Страница 23: ...yback Head Qwy2iis Erase Head QSL1086RNM Cc aEMONEE QTD1164 VU Meter Cord Clamper QBT1484M Lid Spring A RS 615USD QBK7116 Fiber Washer iN XUC2FT Stop Ring 2 COMMON XSN3 8S Screw 3X8 Spring Washer 3 XW...
Страница 24: ...w 4X10 COMMON QBJ3299 Nylon Washer RS 615USD XSN3 25S Screw 3 X25 COMMON XTN3 10B Tapping Screw 3X10 XWG3 Flat Washer 3 XNG3ES Nut 3 ACCESSORIES RPOSOA DIN Cord COMMON QQT2098 instruction Book PACKING...
