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CFM-S1MK2

SERVICE MANUAL

RADIO CASSETTE-CORDER

SPECIFICATIONS

E Model

Model Name Using Similar Machanism

NEW

Tape Transport Mechanism Type

MF-M20-117

• Frequency range

FM: Saudi Arabia: 87.6 - 107 MHz
Other models: 87.6 - 108 MHz
MW: 530 - 1 605 kHz
SW1: 2.3 - 7 MHz
SW2: 7 - 22 MHz

• Aerials 

FM/SW: Telescopic aerial

MW: Built-in ferrite bar aerial

• Recording system 

2-track 1 channel mono

• Frequency response 

80 - 8 000 Hz

• Speaker 

Full range: 12 cm (4 

3

/

4

 inches) dia., 6

, cone

type (1)

• Outputs 

Earphones jack

For 8 

impedance earphones

• Maximum power output 

1.4 W

• Power requirements 

110 - 120, 220 - 240 V AC

selectable, 50/60 Hz
6 V DC, 4 R20 (size D) batteries

• Power consumption 

AC 8 W

• Battery life

FM recording: Sony R20P: approx. 18 h

Sony alkaline LR20: approx. 50 h

Tape playback: Sony R20P: approx. 12 h

Sony alkaline LR20: approx. 30 h

• Dimensions 

Approx. 287 

X

 147 

X

 110 mm (w/h/d)

(11 

3

/

8

 

X

 5 

7

/

8

 

X

 4 

4

/

8

 inches) (incl. projecting parts)

• Mass (incl. batteries) 

Approx. 2 kg (4 lb. 7 oz)

• Supplied accessory 

Mains lead (1)

Design and specifications are subject to change without
notice.

Ver 1.1  2003.05

9-874-212-02

2003E0200-1

© 2003.05

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

Summary of Contents for CFM-S1MK2

Page 1: ...k For 8 Ωimpedance earphones Maximum power output 1 4 W Power requirements 110 120 220 240 V AC selectable 50 60 Hz 6 V DC 4 R20 size D batteries Power consumption AC 8 W Battery life FM recording Sony R20P approx 18 h Sony alkaline LR20 approx 50 h Tape playback Sony R20P approx 12 h Sony alkaline LR20 approx 30 h Dimensions Approx 287 X 147 X 110 mm w h d 11 3 8 X 5 7 8 X 4 4 8 inches incl proje...

Page 2: ... Main Section 2 2 13 4 4 Printed Wiring Boards 14 5 EXPLODED VIEWS 5 1 Front Cabinet Section 16 5 2 Rear Cabinet Section 17 5 3 Mechanism Deck Section 1 MF M20 117 18 5 4 Mechanism Deck Section 2 MF M20 117 19 6 ELECTRICAL PARTS LIST 20 SECTION 1 GENERAL SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK OR DOTTED LINE WITH MARK ONTHE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICA...

Page 3: ...ont assy JACK board MAIN board FINE TUNE board BATTERY TERMINAL board POWER board MD assy Record playback head HRP101 Reel capstan motor M101 Belt 4 1 6Remove solder two places 2Screws BVTP 3X14 2Screws BVTP 3X14 Lid Battery case Cabinet front ASSY Rear assy Cabinet Claws 5 Press the STOP EJECT button 3 Microphone 2 3 RECORD PLAYBACK HEAD HRP101 REEL CAPSTAN MOTOR M101 BELT 1Screws Tapping B MD AS...

Page 4: ...crews BVTP 3X10 3Screw BVTP 3X10 7Claw Rear assy Cabinet FINE TUNE board 1Knob FT 1Knob band 1Knob function 1Knob vol 1Knob sound 6Screw BVTP 3X10 JACK board 1Knob tune Bracket PWB 5Connector CNP1 2Connector CNP901 6 2 4Remove Solder Rear assy Cabinet POWER board 3 Remove solder BATTERY TERMINAR board 5 Screws BVTP 3X10 1 Claw ...

Page 5: ...7 DIAL POINTER SETTING Dress the lead wires as shown in figure 1Turn the knob tune fully counterclockwise Pointer Chassis A 6 6 Hold the left side of pointer then insert the gear section of pointer to groove of chassis A 2Fit the pointer to the chassis B 5 Set the left side of the pointer to the convex portion a on the chassis B Chassis B 6 3 7Bracket P 4Screw BVTP 3X14 Pointer Chassis B Pointer a...

Page 6: ...ad rubber belts capstan 2 Demagnetize the record playback head with a head demagnetizer Do not bring the head demagnetizer close to the erase head 3 Do not use a magnetized screwdriver for the adjustments 4 After the adjustments apply suitable locking compound to the parts adjusted 5 The adjustments should be performed with the rated power sup ply voltage unless otherwise noted Torque Measurement ...

Page 7: ...pe speed adjustment control inside motor AM RF signal generator 30 amplitude modulation by 400Hz signal Output level as low as possible Put the lead wire antenna close to the set set 8Ω J101 Earphone jack level meter AM RF signal generator 30 amplitude modulation by 400Hz signal output level as low as possible telescopic antenna terminal 12pF set 8Ω J101 Earphone jack level meter FM RF signal gene...

Page 8: ... on level meter L8 6 8MHz CT8 22 5MHz FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter L2 86 50MHz 87 35MHz CT2 109 50MHz 107 80MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L1 86 50MHz 87 35MHz CT1 109 50MHz 107 80MHz Saudi Arabia model MAIN BOARD Component side CT1 FM Tracking Adjustment CT3 MW Tracking Adjustment CT6 SW1 Tracking Adjustment L...

Page 9: ...9 CFM S1MK2 Circuit Board Location SECTION 4 DIAGRAMS Battery terminal board Jack board Main board Power board Fine tune board ...

Page 10: ...or repair Power voltage is dc 6V and fed with regulated dc power supply from external power voltage jack Voltages are dc with respect to ground under no signal detuned conditions Voltages are dc with respect to ground in playback mode no mark FM SW1 SW2 MW RADIO SECTION PLAY TAPE SECTION MIC REC RADIO REC Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to no...

Page 11: ...11 11 CFM S1MK2 4 1 BLOCK DIAGRAMS Signal path F FM E PB a REC ...

Page 12: ...2 z Refer to page 10 for Notes 4 2 SCHEMATIC DIAGRAM MAIN SECTION 1 2 C12 10p C31 3p EA 8 2p C7 10p C28 C29 C30 C26 2 2p C8 2200p C24 4700p C10 C23 8 2p FM S1 L10 4 7uH C32 470p Page 13 EA UAE SP E EA Ver 1 1 2003 05 ...

Page 13: ... 3 SCHEMATIC DIAGRAM MAIN SECTION 2 2 z Refer to page 10 for Notes 6 8K R119 1k KH103 1 4 UAE SP E C152 0 01 2SC1623 L5L6 2SC1623 L5L6 10k D140 R132 1k R157 10k C151 1 50V C133 47 10V R156 KH901 Page 12 Ver 1 1 2003 05 ...

Page 14: ...NP1 CT7 CT9 CT8 CT6 C18 C19 C29 JW1 JW2 R108 R119 IC101 CNP101 S103 R106 D101 D103 D104 Q101 Q102 S101 Q103 C131 JW106 JW107 JW4 JW103 JW104 JW105 R111 R113 C102 C104 C107 C110 C111 C112 C117 C121 C140 C144 C151 C133 C146 R148 C147 C149 C150 R154 R155 Q105 JW112 JW111 JW110 JW109 JW113 D140 D141 JW3 KH1 C25 C23 C11 C10 C6 CNP102 JW108 C119 S1 1 8 1 2 4 3 6 5 8 7 E C B E C B S102 REC PB HRP101 REC ...

Page 15: ...MIX AM MIX AGC 1 2 3 4 AGC RF GND MIX OUT FM RF IN 5 6 7 8 GND FM IF IN AM IF IN VCC AM RF FM RF AF BUFF FM IF AM IF TAPE AUX REC PLAY MIX ECM NC REC POWER ON OFF AUX IN LPF ALC DEL P VCC P VCC POWER GND PBTL2 POP DEL B B B B B B B B B B B B B B MIC IN POWER GND POWER IN LIN OUT RIPPLE FILTER RIPPLE FILTER SIG VCC SIG GND BIAS VBIAS TAPE EQ TAPE NF HEAD IN HEAD IN MIC N F BTL1 21 22 23 24 25 26 27...

Page 16: ...dware mark list and accessories and packing materials are given in the last of this parts list Ref No Part No Description Remark Ref No Part No Description Remark 5 1 FRONT CABINET SECTION 2 2 2 1 1 1 ECM101 SP1 4 5 1 2 3 6 Abbreviation EA Saudi Arabia SP Singapore UAE United Arab Emirates 1 3 226 090 12 LID CASSETTE 2 X 3383 108 1 CABINET FRONT SUB ASSY 3 3 226 062 02 SPRING CAS 4 3 047 468 21 DA...

Page 17: ...66 3 226 092 01 KNOB BAND 67 3 226 065 01 TERMINAL BATT 68 3 226 064 01 TERMINAL BATT 69 3 226 038 22 CABINET REAR E SP EA 69 3 226 038 32 CABINET REAR UAE 70 3 233 333 01 KNOB TUNING 71 3 226 091 02 KNOB FT 72 1 686 565 11 POWER BOARD 73 3 226 060 01 TERMINAL ANTENNA 74 3 226 043 02 GEAR VC 75 A 3178 977 A MAIN PC BOARD ASSY E SP UAE 75 A 3178 982 A MAIN PC BOARD ASSY EA 76 3 226 045 02 SHAFT T 7...

Page 18: ...33 016 01 GEAR S REEL 108 3 933 023 11 SLIDER REC 109 3 933 022 01 BASE HEAD 110 3 933 017 11 SLIDER REW 111 3 933 018 11 SLIDER FF 112 3 933 009 11 SLIDER STOP 113 3 933 008 11 SLIDER PAUSE 114 3 933 004 01 CLAW REEL 115 3 933 021 01 SLIDER FRP 116 3 933 006 01 SLIDER EJECT 117 3 934 833 01 SPRING FRP 118 3 022 794 02 SPRING BT 119 3 933 007 01 PLATE LOCK 120 3 009 076 01 CHASSIS HEAD 121 3 010 6...

Page 19: ... 01 GEAR CAM 156 3 932 999 01 SLIDER SW 157 3 932 998 01 SPRING GROUND TORSION 158 3 009 648 01 LEVER S OFF 159 3 009 650 02 SPRING K COMPRESSION 160 X 3373 572 1 REEL ASSY N T 161 3 933 020 01 BELT 162 X 3377 877 3 FLYWHEEL ASSY 163 3 932 993 01 CHASSIS OUTSERT 164 3 343 358 01 RING RETAINING 165 3 933 005 01 SPRING CAM COMPRESSION 166 3 934 336 01 BEARING 167 3 939 383 02 SPRING COMPRESSION 168 ...

Page 20: ...97 11 METAL CHIP 10 5 1 10W A 3178 977 A MAIN BOARD COMPLETE E SP UAE A 3178 982 A MAIN BOARD COMPLETE EA 1 786 130 11 SWITCH PUSH 1 KEY 3 226 043 02 GEAR VC 3 229 772 01 HOLDER ANT 3 229 784 02 CUSHION V 7 621 770 87 SCREW P 2 6X5 7 685 647 79 SCREW BVTP 3X10 TYPE2 N S 7 685 649 79 SCREW BVTP 3X14 TYPE2 N S CAPACITOR C1 1 162 927 11 CERAMIC CHIP 100PF 5 50V C2 1 162 915 11 CERAMIC CHIP 10PF 0 5PF...

Page 21: ...CT2 1 141 647 11 CAP VAR FM FREQUENCY COVERAGE CT3 1 141 647 11 CAP VAR MW TRACKING CT4 1 141 647 11 CAP VAR MW FREQUENCY COVERAGE CT6 1 141 601 11 CAP ADJ SW1 TRACKING CT7 1 141 601 11 CAP ADJ SW1 FREQUENCY COVERAGE CT8 1 141 601 11 CAP ADJ SW2 TRACKING CT9 1 141 601 11 CAP ADJ SW2 FREQUENCY COVERAGE VARIABLE CAPACITOR CV1 1 141 647 11 CAP VAR TUNING CV2 1 141 647 11 CAP VAR TUNING CV3 1 141 647 ...

Page 22: ...6 821 11 METAL CHIP 1K 5 1 10W R119 1 249 417 11 CARBON 1K 5 1 4W R130 1 216 811 11 METAL CHIP 150 5 1 10W R131 1 216 829 11 METAL CHIP 4 7K 5 1 10W R132 1 216 821 11 METAL CHIP 1K 5 1 10W R140 1 218 867 11 METAL CHIP 6 8K 5 1 10W R141 1 216 825 11 METAL CHIP 2 2K 5 1 10W R142 1 216 841 11 METAL CHIP 47K 5 1 10W R143 1 216 845 11 METAL CHIP 100K 5 1 10W R144 1 216 841 11 METAL CHIP 47K 5 1 10W R14...

Page 23: ...TELESCOPIC ECM101 1 542 118 11 MICROPHONE ELECTRET CONDENSER HE101 1 500 680 11 HEAD MAGNETIC ERASE HRP101 1 500 679 11 HEAD MAGNETIC RECORD PLAYBACK M101 A 3052 373 A MOTOR ASSY REEL CAPSTAN INCLUDING PULLEY S106 1 692 302 11 SWITCH LEAF SP1 1 529 973 11 SPEAKER ACCESSORIES 0 1 569 008 21 ADAPTOR CONVERSION EA 0 1 823 401 11 CORD POWER 3 246 350 11 MANUAL INSTRUCTION ENGLISH SPANISH FRENCH ARABIC...

Page 24: ...you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2002 10 New 1 1 2003 05 Singapore model addition ENG 03022 CFM S1MK2 ...

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