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Service
Manual

Please use this service manual with referring to the user guide (D.F.U) without fail.

281W855010  AO
3120 785 22013
First Issue:1999.08

ST4000/

N1B

Tuner

- ST4000 -

TABLE OF CONTENTS

1.

TECHNICAL SPECIFICATIONS ............................................................................. 1

2.

WIRING DIAGRAM ................................................................................................. 2

3.

BLOCK DIAGRAM .................................................................................................. 3

4.

SCHEMATIC DIAGRAM AND PARTS LOCATION ................................................. 5

5.

MICROPROCESSOR AND IC DATA .................................................................... 11

6.

ADJUSTMENT PROCEDURE .............................................................................. 13

7.

EXPLODED VIEW AND PARTS LIST ................................................................... 16

8.

ELECTRICAL PARTS LIST ................................................................................... 17

Printed in Japan

R

ST4000

Summary of Contents for ST4000

Page 1: ...5 22013 First Issue 1999 08 ST4000 N1B Tuner ST4000 TABLE OF CONTENTS 1 TECHNICAL SPECIFICATIONS 1 2 WIRING DIAGRAM 2 3 BLOCK DIAGRAM 3 4 SCHEMATIC DIAGRAM AND PARTS LOCATION 5 5 MICROPROCESSOR AND IC DATA 11 6 ADJUSTMENT PROCEDURE 13 7 EXPLODED VIEW AND PARTS LIST 16 8 ELECTRICAL PARTS LIST 17 Printed in Japan R ST4000 ...

Page 2: ...address 990729A O USA MARANTZ AMERICA INC MARANTZ AMERICA INC 440 MEDINAH ROAD ROSELLE ILLINOIS 60172 USA PHONE 630 307 3100 FAX 630 307 2687 BRAZIL MARANTZ BRAZIL CAIXA POSTAL 21462 CEP 04698 970 SAO PAULO SP BRAZIL PHONE 0800 123123 Discagem Direta Gratuita FAX 55 11 534 8988 JAPAN Technical MARANTZ JAPAN INC 35 1 7 CHOME SAGAMIONO SAGAMIHARA SHI KANAGAWA JAPAN 228 8505 PHONE 81 42 748 1013 FAX ...

Page 3: ...o Separation 1 kHz 40 dB Output Level Impedance 600 mV 2 2 k ohm AM Section Tuning Range 522 kHz 1 620 kHz 9 kHz steps Usable Sensitivity IHF 55 dB m 562 V m Loop Antenna Selectivity 30 dB at 9 kHz Image Response Ratio 35 dB IF Response Ratio 60 dB Distortion 1 at 85 dB m Signal to Noise Ratio 50 dB at 94 dB m Output Level Impedance 170 mV 2 2 k ohm General Power Requirements 230V AC 50 Hz Power C...

Page 4: ...FL1 VFIP FL2 REMOTE GND POWER AM 5 6V GND RESET TUNED ST IN DO CK DI CE RDS DR RDS CK PLL 2 WIRING DIAGRAM 2 ...

Page 5: ...3 BLOCK DIAGRAM 3 4 ...

Page 6: ...4 SCHEMATIC DIAGRAMS AND PARTS LOCATIONS 5 6 ...

Page 7: ...7 8 ...

Page 8: ...9 10 Q905 Q902 Q901 Q903 IC91 Q906 Q908 Q907 Q702 Q701 Q703 Q704 IC81 Q307 Q304 Q308 Q303 Q305 IC31 Q306 Q301 Q503 Q504 IC11 Q502 Q501 Q102 Q512 Q101 Q511 IC51 ...

Page 9: ...for crystal oscillator 7 2MHz IC91 ANAM 1239T IC51 BVILC7218 LC7218 12 PIN NO SYMBOL IN OUT DESCRIPTION 1 VCC I VDD CONNECTION 2 5 KEY OUT O KEY MATRIX OUTPUT 6 10 N C NO CONNECTION 11 RDS DATA I RDS DATA INPUT 12 N C NO CONNECTION 13 RDS CK I RDS CLOCK INPUT 14 16 GND GROUND 17 18 AREA OPTION I 17 H 18 H EUROPE OPTION 19 SIGNAL I SIGNAL INPUT 20 21 N C NO CONNECTION 22 23 GND GROUND 24 VREF I 5V ...

Page 10: ...he loop antenna Adjust for the indication of VTVM of the wave form of scope to be maximum NO STEP FREQUENCY ADJUST FOR ADJUS MENT 1 612KHz Max sensitivity L102 2 1503KHz Max sensitivity CT01 MW 3 Repeat steps 1 and 2 several times AM SG AM LOOP antenna 60cm MHz OUTPUT terminal AC EVM OSCILLOSCOPE 4 FM RF ADJUSTMENT Signal Generator Connects to FM ANT JACK FM IN through the dummy NO FREQUENCY ADJUS...

Page 11: ...ADJUSTMENT POINT 15 ...

Page 12: ...281W270050 7 9965 000 01246 KNOB TUNING 281W270030 8 9965 000 01247 KNOB DISPLAY 281W270040 9 9965 000 01248 KNOB PRESET 281W270020 10 nsp CABINET TOP nsp 14 nsp HOLDER PCB nsp 15 nsp CHASSIS BOTTOM nsp 16 4822 146 10926 TRANS MAINS 230V TS000780R 17 nsp BUSHING MAINS CORD nsp 18 nsp MAINS CORD nsp 19 4822 462 10695 FOOT 168W057010 20 nsp RUBBER CUSHION nsp S1 nsp SCREW nsp S8 PACKING 001T 9965 00...

Page 13: ...m capacitor One way type Mylar 10 50V 7 Capacity value Examples 7 Capacity value 0 001 F 1000 pF 102 0 1 F 104 0 0018 F 182 0 56 F 564 0 01 F 103 1 F 105 0 015 F 153 1 The above CODES R R C C and C are omitted on the schematic diagram in some case 2 On the occasion be confirmed the common parts on the parts list 3 Refer to Common Parts List for the other common parts Rl05 DD4 DK4 NOTE NOTE ON SAFE...

Page 14: ... nsp C501 nsp CER 0 01 F 50V Z nsp C502 nsp ELECT 470 F 10V nsp C503 nsp CER 33pF 50V J nsp C504 nsp CER 33pF 50V J nsp C505 nsp CER 100pF 50V K nsp C508 C510 nsp CER 0 022 F 50V Z nsp C511 nsp ELECT 4 7 F 50V nsp C512 nsp CER 0 022 F 50V Z nsp C515 nsp CER 0 01 F 50V Z nsp C516 nsp CER 5 6pF 50V K nsp C531 nsp CER 0 022 F 50V Z nsp C532 nsp CER 0 022 F 50V Z nsp C701 nsp CER 680pF 50V K nsp C702 ...

Page 15: ...2 130 60107 2SA933SR HT109331S0 Q907 4822 130 62503 DTC114YS BA000730R Q908 4822 130 62787 DTA114YS BA000190R RESISTORS R103 nsp 47 1 5W J nsp R104 nsp 390 1 5W J nsp R105 nsp 1 2k 1 5W J nsp R106 nsp 820k 1 5W J nsp R107 nsp 560 1 5W J nsp R108 nsp 470k 1 5W J nsp R109 nsp 270 1 5W J nsp R110 nsp 1 8k 1 5W J nsp R111 nsp 1 5k 1 5W J nsp R112 nsp 5 6k 1 5W J nsp R115 nsp 15k 1 5W J nsp R116 nsp 2 ...

Page 16: ...P000890R S913 9965 000 01263 SW TACT SP000890R S926 MISCELLANEOUS CN71 nsp 7 92MM YUNHO nsp CN72 nsp MOLEX 5267 07A nsp CN91 nsp MOLEX53014 0610 nsp CN92 nsp WAFER nsp BN72 nsp WIRE ASS Y nsp BN91 nsp WIRE ASS Y nsp BN92 nsp WIRE ASS Y nsp BN95 nsp WIRE ASS Y nsp FIP1 9965 000 01234 FLD SVA 14MM11 HQ300380R FP11 4822 210 10802 TUNER PACK FTA4460H AV000060R JK11 4822 265 11601 TERMINAL ANT SC021039...

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