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Sony CFM-S1MK2 Service Manual

Radio cassette-corder.
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SERVICE MANUAL
Ver 1.1 2003.05
• 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
type (1)
• Outputs Earphones jack
For 8 Ωimpedance earphones
9-874-212-02
Sony Corporation
Personal Audio Company
2003E0200-1
Published by Sony Engineering Corporation
© 2003.05
CFM-S1MK2

SPECIFICATIONS

inches) dia., 6Ω, cone
Model Name Using Similar Machanism
Tape Transport Mechanism Type
• 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
/
X 5
7
/
X 4
4
/
inches) (incl. projecting parts)
8
8
8
• Mass (incl. batteries) Approx. 2 kg (4 lb. 7 oz)
• Supplied accessory Mains lead (1)
Design and specifications are subject to change without
notice.
RADIO CASSETTE-CORDER
E Model
NEW
MF-M20-117

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Table of Contents

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   Summary of Contents for Sony CFM-S1MK2

  • Page 1: Specifications

    SW1: 2.3 - 7 MHz • Battery life SW2: 7 - 22 MHz • Aerials FM/SW: Telescopic aerial FM recording: Sony R20P: approx. 18 h MW: Built-in ferrite bar aerial Sony alkaline LR20: approx. 50 h • Recording system 2-track 1 channel mono Tape playback: Sony R20P: approx.
  • Page 2: Table Of Contents

    COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
  • Page 3: Disassembly

    CFM-S1MK2 SECTION 2 DISASSEMBLY • The equipment can be removed using the following procedure. Record/playback head (HRP101), Reel/capstan motor (M101), Belt JACK board, MAIN board, BATTERY TERMINAL board, Cabinet (front) assy MD assy FINE TUNE board POWER board Note : Follow the disassembly procedure in the numerical order given.
  • Page 4: Jack Board, Main Board, Fine Tune Board

    CFM-S1MK2 2-4. JACK BOARD, MAIN BOARD, FINE TUNE BOARD 1 Knob(sound) 1 Knob(vol) 1 Knob(function) 1 Knob(band) JACK board 3 Screw +BVTP 3X10 Rear assy, Cabinet Bracket(PWB) MAIN board Chassis(A) 1 Knob(tune) 1 Knob(FT) 2 Connector (CNP901) 7 Claw 5 Connector (CNP1)
  • Page 5: Note On Instalation

    CFM-S1MK2 2-6. NOTE ON INSTALATION Dress the lead wires as shown in figure. Main board (KH102) To jack board Main board (KH101) Main board (KH1) To battery terminal board Fine tune board (KH2) To speaker (SP1) Power board (KH901) MIC (ECM101) Power board (CN901) 2-7.
  • Page 6: Adjustments

    CFM-S1MK2 SECTION 3 ADJUSTMENTS 3-1. MECHANICAL ADJUSTMENTS 3-2. ELECTRICAL ADJUSTMENTS PRECAUTION TAPE RECORDER SECTION 0dB=0.775V 1.Clean the following parts with a denatured-alcohol-moistened FUNOTION switch : TAPE (RADIO OFF) swab : SOUND switch : OFF record/playback head pinch roller VOLUME : MIN...
  • Page 7 CFM-S1MK2 Tape Speed Adjustment Procedure : level meter Mode : Playback 8Ω digital frequency test tape counter WS-48B (3kHz, 0dB) 8Ω J101 (Earphone jack) SW Section J101 (Earphone jack) BAND switch : SW1, SW2 FINE TUNING control : mechanical center...
  • Page 8 CFM-S1MK2 • Repeat the procedures in each adjustment several times, and the SW1 FREQUENCY COVERAGE ADJUSTMENT frequency coverage and tracking adjustments should be finally Adjust for a maximum reading on level meter. done by the trimmer capacitors. 2.2MHz < > : Saudi Arabia model 7.3MHz...
  • Page 9: Diagrams

    CFM-S1MK2 SECTION 4 DIAGRAMS • Circuit Board Location. Jack board Main board Power board Fine tune board Battery terminal board...
  • Page 10 CFM-S1MK2 Ver 1.1 2003.05 Note on schematic Diagram: MAIN SECTION (1/2), (2/2) • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and W or less unless otherwise specified.
  • Page 11: Block Diagrams

    CFM-S1MK2 4-1. BLOCK DIAGRAMS • Signal path. : FM : PB : REC...
  • Page 12: Schematic Diagrams -main Section (1/2)

    CFM-S1MK2 Ver 1.1 2003.05 4-2. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – Refer to page 10 for Notes. UAE, SP, E 8.2p (Page 13) 4.7uH 470p 8.2p 4700p 2200p 2.2p...
  • Page 13: Schematic Diagrams -main Section (2/2)

    CFM-S1MK2 Ver 1.1 2003.05 4-3. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – Refer to page 10 for Notes. (Page 12) KH103 R119 UAE,SP, E KH901 C152 0.01 6.8K R132 R157 2SC1623-L5L6 C151 C133 R156 D140 2SC1623-L5L6...
  • Page 14: Printed Wiring Boards

    CFM-S1MK2 Ver 1.1 2003.05 4-4. PRINTED WIRING BOARDS S1 1-8 S101 BAND ANT1 FUNCTION M901 TAPE TELESCOPIC ANTENNA REEL/CAPSTAN (RADIO OFF) HRP101 ANTENNA MOTOR REC/PB RADIO S106 HEAD (TAPE POWR) S103 HE101 ECM101 ERASE SOUND MAIN HEAD BOARD S102 (REC/PB)
  • Page 15: Ic Block Diagrams

    CFM-S1MK2 • IC BLOCK DIAGRAMS IC1 TA2132AF(EL) AM RF AM RF FM RF FM RF AM/FM AM/FM QUAD FM/AM BUFF FM RF FM IF FM RF AM IF IC101 MM1315BD – – – – – – –...
  • Page 16: Exploded Views

    CFM-S1MK2 SECTION 5 Ver 1.1 2003.05 EXPLODED VIEWS NOTE : • Hardware (# mark) list and accessories and • -XX, -X mean standardized parts, so they The components identified by mark 0 packing materials are given in the last of this...
  • Page 17: Rear Cabinet Section

    CFM-S1MK2 Ver 1.1 2003.05 5-2. REAR CABINET SECTION ANT1 84 85 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-226-046-01 POINTER 1-686-565-11 POWER BOARD 3-226-041-01 BRACKET (PWB) 3-226-060-01 TERMINAL, ANTENNA 3-226-040-01 CHASSIS (B) 3-226-043-02 GEAR (VC)
  • Page 18: Mechanism Deck Section-1(mf-m20-117)

    CFM-S1MK2 5-3. MECHANISM DECK SECTION-1 (MF-M20-117) HRP101 HE101 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-010-01 SPRING (S/P), TORSION 3-933-021-01 SLIDER (FRP) 3-933-025-01 SPRING (P), TORSION 3-040-857-01 LEVER (P) 3-933-006-01 SLIDER (EJECT) 3-933-024-01 ROLLER, PINCH...
  • Page 19: Mechanism Deck Section-2(mf-m20-117)

    CFM-S1MK2 5-4. MECHANISM DECK SECTION-2 (MF-M20-117) S106 M101 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-029-01 LEVER, ERASING PREVENTION 3-932-993-01 CHASSIS, OUTSERT 3-933-182-11 SPRING, CASSETTE 3-343-358-01 RING, RETAINING 3-932-995-01 GEAR (MID) 3-933-005-01 SPRING (CAM), COMPRESSION...
  • Page 20: Electrical Parts List

    CFM-S1MK2 SECTION 6 Ver 1.1 2003.05 ELECTRICAL PARTS LIST BATTERY TERMINAL FINE TUNE JACK MAIN NOTE : The components identified by mark 0 • Due to standardization, replacements in the • SEMICONDUCTORS or dotted line with mark 0 are critical parts list may be different from the parts In each case, u : µ...
  • Page 21 CFM-S1MK2 Ver 1.1 2003.05 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C105 1-162-964-11 CERAMIC CHIP 0.001uF <VARIABLE CAPACITOR> C106 1-162-964-11 CERAMIC CHIP 0.001uF 1-141-647-11 CAP, VAR (TUNING) C107 1-126-934-11 ELECT 220uF 1-141-647-11 CAP, VAR (TUNING)
  • Page 22 CFM-S1MK2 MAIN POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-754-171-11 ANTENNA, FERRITE-ROD (MW) R153 1-216-821-11 METAL CHIP 1/10W (MW TRACKING) R154 1-249-417-11 CARBON 1/4W 1-406-253-81 COIL (OSC) (MW FREQUENCY COVERAGE) R155 1-249-417-11 CARBON 1/4W...
  • Page 23 CFM-S1MK2 Ver 1.1 2003.05 Ref. No. Part No. Description Remark MISCELLANEOUS ************* ANT1 1-501-820-11 ANTENNA, 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...
  • Page 24: Revision History

    CFM-S1MK2 REVISION HISTORY Clicking the version allows 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 2002.10...

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