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Sony CFD-S38 Service Manual
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Sony CFD-S38 Service Manual

Cd radio cassette-corder
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SERVICE MANUAL
Ver 1.2 1999. 09
With SUPPLEMENT-1
(9-926-939-81)
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 6-ohm loads, both channels driven from
100 - 10,000 Hz; rated 4 W per channel-
minimum RMS power, with no more than 10%
total harmonic distortion in AC operation.
Other Specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
MICROFILM
CFD-S38
Model Name Using Similar Mechanism NEW
CD
CD Mechanism Type
Section
Optical Pick-up Name
Model Name Using Similar Mechanism CFD-V10
TC
Section Tape Transport Mechanism Type
SPECIFICATIONS
Radio section
Frequency range
FM: 87.6 - 108 MHz
AM: 530 - 1,710 kHz
Aerials
FM: Telescopic aerial
AM: Built-in ferrite bar aerial
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 sec. with Sony cassette C-60
Frequency response
TYPE I (normal): 70 - 13,000 Hz
General
Speaker
Full range: 10 cm (4 in.) dia.,
6 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
CD RADIO CASSETTE-CORDER
– 1 –
US Model
Canadian Model
E Model
KSM-213CDM
KSS-213C
MF-V10-117
– Continued on next page –

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Summary of Contents for Sony CFD-S38

  • Page 1 Recording system Other Specifications 4-track 2 channel stereo CD player section Fast winding time System Approx. 120 sec. with Sony cassette C-60 Compact disc digital audio system Frequency response Laser diode properties TYPE I (normal): 70 - 13,000 Hz Material: GaAlAs...
  • Page 2 LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Table Of Contents

    SAFETY CHECK-OUT TABLE OF CONTENTS 1. SERVICING NOTES After correcting the original service problem, perform the following ............4 safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, 2. GENERAL and all other exposed metal parts for AC leakage. Check leakage as Playing a CD ................

  • Page 4: Servicing Notes

    SECTION 1 SERVICING NOTES LASER DIODE AND FOCUS SEARCH OPERATION CHUCK PLATE JIG ON REPAIRING CHECK 1. Turn ON the POWER button and press FUNCTION button to On repairing CD section, playing a disc without the lid (CD), use CD position. Chuck Plate Jig.

  • Page 5: General

    SECTION 2 GENERAL This section is extracted from instruction manual. – 5 –...
  • Page 6 – 6 –...

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY • The equipment can be removed using the following procedure. Lid, battery Cabinet assy, Wires Transformer, case front power Antenna, Tuner telescopic board Cabinet (upper) Main CD mechanism assy board block Tape mechanism block Note : Follow the disassembly procedure in the numerical order given. 3-1.

  • Page 8: Wires

    3-3. WIRES Put flat cable and wires between the cabinets and push them in the grooves located at A to F in the figure to prevent disconnection before assembling the set. FRONT CABINET CABINET (REAR) 3-4. TRANSFORMER, POWER 1 screws +BVTP 3x10 2 screws +BVTP 3x10 6 CNP901 4 transformer, power...

  • Page 9: Antenna, Telescopic

    3-5. ANTENNA, TELESCOPIC 2 antenna, telescopic 1 screw +B 3x8 3-6. TUNER BOARD 1 KH1 2 KH2 5 tuner retainer board 6 TUNER board 4 tuner retainer board 3 screw +BVTP 3x10 – 9 –...

  • Page 10: Cabinet (Upper) Assy

    3-7. CABINET (UPPER) ASSY 5 holder assy, cassette 0 screws +BVTP 3x10 6 screw +BVTP 3x10 7 lid (CD) 9 screws +BVTP 3x10 !¡ cabinet (upper) assy 8 screw +BVTP 3x10 !™ handle 3 CNP901 4 CNP902 1 KH1 2 KH2 3-8.

  • Page 11: Cd Mechanism Block

    3-9. CD MECHANISM BLOCK 2 screws (2.6x10) 1 screws (2.6x10) 3 CD mechanism block 3-10. TAPE MECHANISM BLOCK 1 screws +BVTP 3x10 3 tape mechanism block 2 screw +BVTP 3x10 – 11 –...

  • Page 12: Mechanical Adjustments

    SECTION 5 SECTION 4 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS PRECAUTION TAPE SECTION 0 dB = 0.775 V 1. Clean the following parts with a denatured-alcohol-moistened swab : • Standard Output Level record/playback head pinch roller Output terminal HP OUT erase head rubber belts 32 Ω...

  • Page 13: Tuner Section

    TUNER SECTION 0 dB = 1 µV FM FREQUENCY COVERAGE • FM Section ADJUSTMENT Setting: Frequency Display 87.5 MHz 108 MHz RADIO (BAND) button: FM Reading on Digital voltmeter 1.6 ± 0.4 V 4.0 ± 0.1V Adjustment Part <confirmation> FM RF signal generator FM TRACKING ADJUSTMENT TP (FM ANT)

  • Page 14: Cd Section

    Adjustment Location: – tuner board (component side) – (FM ANT) TRACKING TP (VT) ADJUSTMENT (JW17) FREQUENCY COVERAGE ADJUSTMENT TRACKING ADJUSTMENT CD SECTION CD section adjustments are done automatically in this set. In case of operation check, confirm that focus bias. FOCUS BIAS CHECK Test Point: 1.

  • Page 15: Diagrams

    SECTION 6 DIAGRAMS 6-1. IC PIN DESCRIPTION 6-2. CIRCUIT BOARDS LOCATION • IC501 CXP83620-007Q (SYSTEM CONTROL) Pin No. Pin Name Pin Description C-SCOR CD SCOR input PRIMARY board Sircs receiver input BATTERY board 3, 4 — Not used. C-SENS1 CD SENSE-1 input C-SENS2 CD SENSE-2 input CD MOTOR board...

  • Page 16: Block Diagram - Cd Section

    CFD-S38 6-3. BLOCK DIAGRAM — CD SECTION — MAIN BOARD (1/2) RF AMP & SYSTEM SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR IC701 IC703 CNP901 RF AMP AOUT1 CD L-CH RF O EFM DEMODULATOR MAIN DIGITAL LOUT1 FILTER SECTION SERIAL & INTERFACE...

  • Page 17: Block Diagram - Main Section

    CFD-S38 6-4. BLOCK DIAGRAM — MAIN SECTION — HEADPHONE MAIN BOARD (2/2) BOARD KH306 CNP306 VOLUME/SOUND CONTROL POWER AMP REC/PB R-CH IC302 IC303 PRE-AMP CD SECTION IC301 REC L J301 R-CH ALC 2 CD L OUT-L OUT1 CD L-CH SURROUND...

  • Page 18: Schematic Diagram - Tuner Section

    CFD-S38 6-5. SCHEMATIC DIAGRAM — TUNER SECTION — • Refer to page 37 for IC Block Diagrams. CT3,L4 TRACKING CT1,L1 FM FREQUENCY TRACKING COVERAGE C14,15 US,CND,E MODEL : 0.018 AR,SP MODEL : 0.015 (Page 31) (Page 27) Note: • All capacitors are in µF unless otherwise noted. pF: µµF •...
  • Page 19 CFD-S38 6-6. PRINTED WIRING BOARD — TUNER SECTION — • Refer to page 16 for Circuit Boards Location. 6-7. PRINTED WIRING BOARD — CONTROL SECTION — • Refer to page 16 for Circuit Boards Location. • Semiconductor Location (tuner board) Ref.

  • Page 20: Printed Wiring Boards - Main Section

    CFD-S38 6-8. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 16 for Circuit Boards Location. (Page 24) CD MOTOR BOARD HRP301 RECORD/PLAYBACK HEAD M701 SPINDLE MOTOR L-CH R-CH S701 (Page 23) (LIMIT) CNP1 CNP707 M702 SLED MOTOR...
  • Page 21 CFD-S38 6-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 37 for IC Block Diagrams. (Page 36) (Page 30) (Page 31) (Page 22) • Semiconductor Location Note on Printed Wiring Boards: Ref. No. Location Ref. No. Location Ref.
  • Page 22 CFD-S38 6-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 38 for IC Block Diagrams. US,CND,E MODEL AR,SP MODEL Note: Note: • Waveforms (MODE:PLAY) The components identi- Les composants identifiés par fied by mark ! or dotted...
  • Page 23 CFD-S38 6-11. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — R527 US,CND,E MODEL : 1.5k AR,SP MODEL : 4.7k Note: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
  • Page 24 CFD-S38 6-12. PRINTED WIRING BOARDS — POWER SUPPLY SECTION — • Refer to page 16 for Circuit Boards Location. • Semiconductor BATTERY BOARD BATTERY COMMON BOARD Location Ref. No. Location D401 G-10 D402 F-10 D403 D404 D405 D406 D407 DRY BATTERY D408 SIZE "...

  • Page 25: Schematic Diagram - Power Supply Section

    CFD-S38 6-13. SCHEMATIC DIAGRAM — POWER SUPPLY SECTION — • Refer to page 37 for IC Block Diagrams. (Page 28) F902 5A/125V (US,CND,E) T3.15AL/250V (AR,SP) Note: • All capacitors are in µF unless otherwise noted. pF: µµF • Total current is measured with no cassette installed.
  • Page 26 • IC Block Diagrams IC1 TA2104N IC2 LC72137-Q IC701 CXA1992BR 32 31 28 27 GND1 FM RF OUT FM RF 22 NC VCC1 FM RF IN AM RF OUT AM LOW OUT RF SUMMING AMP PD2 IV PD1 IV MIX OUT FM OSC SENS2 XOUT...
  • Page 27 IC703 CXD2589Q 59 58 57 54 53 52 51 SYSM SERIAL-IN INTERFACE LRCKI LRCK AVSS OVER SAMPLING ASYO DIGITAL FILTER ASYI ASYMMETRY DEMODULATOR CORRECTOR BIAS AVDD 3rd-ORDER AVDD NOISE SHAPER AOUT1 AIN1 CLTV LOUT1 AVSS ERROR XVDD CORRECTOR AVSS XTAI SUB CODE PROCESSOR DIGITAL...

  • Page 28: Exploded Views

    SECTION 7 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so The components identified by number in the exploded views are not supplied. they may have some difference from the mark ! or dotted line with mark. •...

  • Page 29: Cabinet (Rear) Section

    7-2. CABINET (REAR) SECTION ANT1 T901 F902 not supplied The components identified by Les composants identifiés par une mark ! or dotted line with mark. marque ! sont critiques pour la ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une piéce specified.

  • Page 30: Cabinet (Upper) Section

    7-3. CABINET (UPPER) SECTION MF-V10-117 S501 S305 S304 KSM-213CDM LCD501 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3320-814-A HOLDER ASSY, CASSETTE 3-910-095-31 RUBBER, VIBRATION PROOF 3-032-027-01 LID (CD) 3-921-725-01 SCREW (2.6X10), +PWH 1-452-899-11 MAGNET * 119 A-3321-757-A MAIN BOARD, COMPLETE (US,CND,E) 3-019-395-01 PLATE, CHUCKING * 119...

  • Page 31: Tape Mechanism Section-1

    7-4. TAPE MECHANISM SECTION-1 (MF-V10-117) HRP301 HE301 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-010-01 SPRING (S/P), TORSION * 162 3-008-587-01 SLIDER (STOP) 3-933-025-01 SPRING (P), TORSION * 163 3-008-591-01 SLIDER (PAUSE) 3-933-026-01 LEVER (P) 3-933-004-01 CLAW, REEL 3-933-024-01 ROLLER, PINCH * 165...

  • Page 32: Tape Mechanism Section-2

    7-5. TAPE MECHANISM SECTION-2 (MF-V10-117) S303 M301 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 3-933-182-01 SPRING, CASSETTE 3-343-358-01 RING, RETAINING 3-932-995-01 GEAR (MID) 3-933-005-01 SPRING (CAM), COMPRESSION X-3371-667-1 CLUTCH ASSY 3-016-349-01 WASHER 3-932-997-01 GEAR (CAM) 3-937-760-01 SPRING (GROUND), COMPRESSION...

  • Page 33: Optical Pick-Up Section

    7-6. OPTICAL PICK-UP SECTION (KSM-213CDM) not supplied M701 M702 The components identified by Les composants identifiés par une mark ! or dotted line with mark. marque ! sont critiques pour la ! are critical for safety. sécurité. Replace only with part number Ne les remplacer que par une piéce specified.

  • Page 34: Electrical Parts List

    BATTERY BATTERY COMMON SECTION 8 ELECTRICAL PARTS LIST CD MOTOR CONTROL NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by the parts list may be different from the they are seldom required for routine service. mark ! or dotted line with mark.
  • Page 35 CONTROL HEADPHONE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S623 1-762-798-11 SWITCH, KEY BOARD (LOOP/AUTO PRESET) C185 1-126-785-11 ELECT 47uF S624 1-762-798-11 SWITCH, KEY BOARD (FLASH) C186 1-126-382-11 ELECT 100uF C187 1-104-665-11 ELECT 100uF ************************************************************** C188 1-104-665-11 ELECT...
  • Page 36 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C348 1-126-961-11 ELECT 2.2uF C707 1-161-494-00 CERAMIC 0.022uF C352 1-126-962-11 ELECT 3.3uF C708 1-136-165-00 FILM 0.1uF C353 1-101-005-00 CERAMIC 22000PF C709 1-136-165-00 FILM 0.1uF C354 1-104-666-11 ELECT 220uF C710 1-162-302-11 CERAMIC...
  • Page 37 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C777 1-162-306-11 CERAMIC 0.01uF < COIL > C780 1-162-284-31 CERAMIC 150PF C781 1-162-292-31 CERAMIC 680PF JW735 1-410-509-11 INDUCTOR 10uH (US,CND,E) C782 1-137-189-11 FILM 0.18uF C783 1-162-282-31 CERAMIC 100PF <...
  • Page 38 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R104 1-247-843-11 CARBON 3.3K 1/4W R341 1-249-413-11 CARBON 1/4W R110 1-247-807-11 CARBON 1/4W R344 1-247-863-11 CARBON 1/4W R111 1-249-429-11 CARBON 1/4W R351 1-249-441-11 CARBON 100K 1/4W R112 1-247-863-11 CARBON 1/4W R352...
  • Page 39 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R550 1-249-417-11 CARBON 1/4W R716 1-247-852-11 CARBON 7.5K 1/4W R551 1-249-417-11 CARBON 1/4W R717 1-247-903-00 CARBON 1/4W R552 1-249-417-11 CARBON 1/4W R718 1-247-899-11 CARBON 680K 1/4W R553 1-249-417-11 CARBON 1/4W R719...
  • Page 40 MAIN PRIMARY SECONDARY TUNER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < VIBRATOR > D908 8-719-991-33 DIODE 1SS133T-77 D909 8-719-991-33 DIODE 1SS133T-77 X501 1-781-357-11 VIBRATOR, CERAMIC (4.19MHz) D910 8-719-991-33 DIODE 1SS133T-77 X502 1-767-697-11 VIBRATOR, CRYSTAL (32.768kHz) X701 1-760-793-11 VIBRATOR, CERAMIC (16.9344MHz) <...
  • Page 41 TUNER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-124-903-11 ELECT < DIODE > 1-124-903-11 ELECT 1-104-666-11 ELECT 220uF 8-719-050-72 DIODE KV1370NT 1-127-888-21 CAPACITOR 0.1uF 8-719-050-72 DIODE KV1370NT 1-124-903-11 ELECT 8-719-050-69 DIODE KV1520N 8-719-923-93 DIODE MTZJ-T-77-16C 1-127-888-21 CAPACITOR 0.1uF 8-719-991-33 DIODE 1SS133T-77...
  • Page 42 CFD-S38 TUNER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-249-430-11 CARBON 1/4W ACCESSORIES & PACKING MATERIALS 1-247-843-11 CARBON 3.3K 1/4W ******************************** 1-249-416-11 CARBON 1/4W 1-249-417-11 CARBON 1/4W 1-557-287-11 CORD, POWER (E) 1-249-417-11 CARBON 1/4W 1-690-952-11 CORD, POWER (CND)
  • Page 43 1. Mexican model addition CFD-S38 Mexican model is same as CFD-S38 E model. When repairing CFD-S38 Mexican model, please refer to CFD-S38 service manual (9-926-939-∏) previously issued. 2. Main board modification There are the board change and micro computer (IC501) change for main board.
  • Page 44 2-1. Electrical Parts List — Main board — (Page 47-52) Former New-I New-II (Board (1-672-381-11) (1-672-381-12) (1-672-381-12) part No.) Ref. No. Part No. Part No. Part No. Description Remark Description Remark Description Remark D590, No mount 8-719-991-33 No mount D591 DIODE 1SS133T-77 JW506 Jumper wire...
  • Page 45 3. Tuner board modification 3-1. Electrical Parts List — Tuner board — (Page 52-53) Former Ref. No. Part No. Description Remark Part No. Description Remark 8-719-923-93 DIODE MTZJ-T-77-16C No mount 8-719-991-33 DIODE 1SS133T-77 No mount 8-759-549-84 IC TA2104AN 8-759-644-86 IC TA2104BN Note : Part change should be made at the same time.
  • Page 46 CFD-S38 Sony Corporation 99I0438-1 9-926-939-81 Personal Audio Company Printed in Japan C1999. 9 – 4 – Published by General Engineering Dept.

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