Sony CFDS-22-L, CFDS-32-L Service manual

CFD-S22L/S32L

SERVICE MANUAL

Ver 1.0 2000. 03

Photo: CFD-S32L

Section

AEP Model

UK Model

Model Name Using Similar Mechanism CFD-S38L CD Mechanism Type KSM-213CDM Optical Pick-up Name KSS-213C Model Name Using Similar Mechanism CFD-S38L T ape Transport Mechanism T ype MF-S22-117

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

Frequency response

20 - 20,000 Hz +1/–2 dB

Wow and flutter

Below measurable limit

Radio section

Frequency range

CFD-S22L/S32L

FM 87.5 - 108 MHz MW 531 - 1,602 kHz LW 531 - 279 kHz

FM: 10.7 MHz MW/LW: 450 kHz

Aerials

FM: Telescopic aerial MW/LW: Built-in ferrite bar aerial

SPECIFICATIONS

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 - 10,000 Hz

General

Speaker

Full range: 10 cm (4 in.) dia.,

3.2 ohms, cone type (2)

Outputs

Headphones jack (stereo minijack) For 16 - 68 ohms impedance headphones

Maximum power output

2.3 W + 2.3 W

Power requirements

For CD radio cassette-corder: 230 V AC, 50 Hz 9 V DC, 6 R20 (size D) batteries For remote control (CFD-S32L only): 3 V DC, 2 R6 (size AA) batteries

Power consumption

AC 20 W

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CD RADIO CASSETTE-CORDER

Battery life

For CD radio cassette-corder:

FM recording

Sony R20P: approx. 13.5 h Sony alkaline LR20: approx. 20 h

Tape playback

Sony R20P: approx. 7.5 h Sony alkaline LR20: approx. 15 h

CD playback

Sony R20P: approx. 2.5 h Sony alkaline LR20: approx. 7 h

Dimensions

Approx. 420 × 165 × 256 mm (w/h/d)

5/8 × 6 1/2 × 10 1/8 inches) (incl. projecting parts)

(16

Mass

Approx. 4.1 kg (9 lb. 1 oz.) (incl. batteries)

Supplied accessories

Mains lead (1) Remote control RMT-CS32AD (1) (CFD-S32L onl y)

Design and specifications are subject to change without notice.

This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom exterior.

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270˚C during

repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

Notes on Chip Component Replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY P ARTS WHOSE P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.

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TABLE OF CONTENTS

1. SERVICING NOTES......................................................... 4

2. GENERAL

Location of controls.................................................................5

Adjusting the sound emphasis (MEGA BASS/TONE)........... 5

Playing a CD ........................................................................... 6

Listening to the radio............................................................... 6

Playing a tape .......................................................................... 7

Recording ................................................................................ 7

3. DISASSEMBLY

3-1. Cabinet (Front) Sub Assy.................................................... 8

3-2. Wires ................................................................................... 9

3-3. Secondary Board, Power Board .......................................... 9

3-4. Tuner Board....................................................................... 10

3-5. Cabinet (Upper) Block Assy ............................................. 10

3-6. Main Board ....................................................................... 11

3-7. CD Mechanism Block ....................................................... 11

3-8. Tape Mechanism Block ..................................................... 12

3-9. Holder Assy, Cassette ........................................................ 12

3-10. PRE Board......................................................................... 13

4. MECHANICAL ADJUSTMENTS............................... 14

5. ELECTRICAL ADJUSTMENTS

Tape Section .......................................................................... 14

Tuner Section......................................................................... 15

CD Section ............................................................................ 16

6. DIAGRAMS

6-1. IC Pin Description............................................................. 17

6-2. Circuit Boards Location .................................................... 18

6-3. Block Diagram – CD Section –......................................... 19

6-4. Block Diagram – Main Section –...................................... 21

6-5. Printed Wiring Board – Tuner Section –........................... 23

6-6. Schematic Diagram – Tuner Section –.............................. 25

6-7. Printed Wiring Board – CD Section –............................... 27

6-8. Schematic Diagram – CD Section –.................................. 29

6-9. Schematic Diagram – PRE Section –................................ 31

6-10. Printed Wiring Boards – Main Section – .......................... 33

6-11. Schematic Diagram – Main Section (1/2) – ...................... 35

6-12. Schematic Diagram – Main Section (2/2) – ...................... 37

6-13. Printed Wiring Board – Control Section – ........................ 39

6-14. Schematic Diagram – Control Section – ........................... 41

6-15. Printed Wiring Boards – Power Supply Section – ............ 43

6-16. Schematic Diagram – Power Supply Section –................. 45

7. EXPLODED VIEWS

7-1. Cabinet (Front) Section ..................................................... 50

7-2. Cabinet (Rear) Section ...................................................... 51

7-3. Cabinet (Upper) Section.................................................... 52

7-4. Tape Mechanism Section-1 ............................................... 53

7-5. Tape Mechanism Section-2 ............................................... 54

7-6. Optical Pick-up Section .................................................... 55

8. ELECTRICAL PARTS LIST......................................... 56

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SECTION 1

SERVICING NOTES

CHUCK PLATE JIG ON REPAIRING

On repairing CD section, playing a disc without the lid (CD), use Chuck Plate Jig.

• Code number of Chuck Plate Jig: X-4918-255-1

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

1. Turn ON the OPERATE button and press FUNCTION button to CD position.

2. Open the lid (CD).

3. Turn on S501 with screwdriver, etc. as f ollowing figure.

4. Press the CD N X button.

5. Confirm the laser diode emission while observing the objecting lens. When there is no emission, Auto P ower Control circuit or Optical Pick-up is broken. Objective lens moves up and down three times for focus search.

S501

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SECTION 2

GENERAL

This section is extracted from instruction manual.

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– 6 –

– 7 –

SECTION 3

DISASSEMBLY

• The equipment can be removed using the following procedure.

Set Cabinet (Front) Sub Assy Wires

Note : Follow the disassembly procedure in the numerical order given.

Cabinet (Upper) Block Assy Secondary Board, Power Board Tuner Board

Tape Mechanism Block CD Mechanism Block

3-1. CABINET (FRONT) SUB ASSY

9 cabinet (front) sub assy

6 BVTP 3x12

7 CNP323

Main Board

Holder Assy, Cassette PRE Board

lid (CD)

2 BVTP 3x10

8 CNP501

5 BVTP 3x10

1 lid, battery case

4 BVTP 3x12

3 BVTP 3x10

– 8 –

3-2. WIRES

)

Put flat cable and wires between the cabinets and push them in the grooves located at A to G in the figure to prevent disconnection before assembling the set.

CABINET (FRONT

from speaker

3-3. SECONDARY BOARD, POWER BOARD

CABINET (REAR)

3 BVTP 3x10

SECONDARY board

2 BVTP 3x10

5 CNP901

6 POWER board

1 BVTP 3x10

4 CNP902

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3-4. TUNER BOARD

5 TUNER board

1 CNP1

2 BVTP 3x10

3-5. CABINET (UPPER) BLOCK ASSY

5 BVTP 3x10

9 handle

3 holder (PWB)(TU)

6 BVTP 3x12

3 holder assy, cassette

7 BVTP 3x12

4 lid (CD)

8 BVTP 3x12

0 cabinet (upper) block assy

2 CNP902

cabinet (rear)

1 CNP1

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3-6. MAIN BOARD

1 PWH 2.6x10

2 PWH 2.6x10

3 CD mechanism block

3 connector

(S501)

4 CNP651

7 CNP502

8 MAIN board

2 BVTP 3x10

1 BVTP 3x10

5 CNP322

6 CNP505

3-7. CD MECHANISM BLOCK

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3-8. TAPE MECHANISM BLOCK

1 BVTP 3x10

2 BVTP 3x10

3 tape mechanism bloc

3-9. HOLDER ASSY, CASSETTE

1 BVTP 3x10

2 DAMPER

4 holder assy, cassette

– 12 –

3-10. PRE BOARD

3 Removal the solders.

1 BVTP 2x4

2 PRE board

– 13 –

)

SECTION 4

MECHANICAL ADJUSTMENTS

SECTION 5

ELECTRICAL ADJUSTMENTS

PRECAUTION

1. Clean the following parts with a denatured-alcohol-moistened swab :

record/playback head pinch roller erase head rubber belts capstan idlers

2. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head magnetizer close to the erase head.)

3. Do not use a magnetized screwdriver for the adjustments.

4. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

Torque Measurement

Mode Torque meter Meter reading

FWD CQ-102C

FWD Back Tension (0.021 – 0.076 oz • inch)

FF CQ-201B

REW CQ-201B

T ape Tension Measurement

Mode Tension meter Meter Reading

FWD CQ-403A

CQ-102C

30 – 70 g • cm

(0.42 – 0.97 oz • inch)

1.5 – 5.5 g • cm

more than 60 g • cm

(more than 0.83 oz • inch)

more than 60 g • cm

(more than 0.83 oz • inch)

more than 100 g

(more than 3.53 oz)

TAPE SECTION 0 dB = 0.775 V

• Standard Output Level Output terminal HP OUT

load impedance 32 Ω

output signal level 0.25 V (–10 dB)

• Test Tape

Type Signal Used for

WS-48A 3 kHz, 0 dB tape speed adjustment

T ape Speed Adjustment

Procedure:

Mode: playback

test tape WS-48A (3 kHz, 0 dB)

set

ack (J321

Adjust so that the value on the digital frequency counter is 3,000 Hz.

Specification Value:

Digital frequency counter

2,910 to 3,090 Hz

digital frequency counter

32 Ω

Adjust so that the frequency at the beginning and that at the end of tape winding are between 2,910 to 3,090 Hz.

Adjustment Location:

Tape speed adjustment control inside motor

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)

TUNER SECTION 0 dB = 1 µV

• FM Section

Setting:

RADIO (BAND) button: FM

FM RF signal generator

0.01 µF

75 kHz frequency deviation by 1 kHz signal output level : as low as possible

• MW/LW Section

Setting:

RADIO (BAND) button: MW or LW

TP (JW2)

set

FM FREQUENCY COVERAGE

ADJUSTMENT

Frequency Display 87.5 MHz 108 MHz Reading on Digital voltmeter 1.6 ± 0.4 V 4.0 ± 0.3 V Adjustment Part <confirmation> L2

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L1 CT1

87.5 MHz 108 MHz

FM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

10.7 MHz

AM RF signal generator

Put the lead-wire antenna close to the set.

30% amplitude modulation by 400 Hz signal

• Connecting Level Meter (FM, MW and LW)

level meter (range: 0.5–5 V ac

32 Ω

set

i jack (J321)

• Connecting Digital Voltmeter (FM, MW and LW)

digital voltmeter

MW FREQUENCY COVERAGE

CHECK

Frequency Display 531 kHz 1,611 kHz Reading on Digital voltmeter 1.0 ± 0.5 V 5.2 ± 0.6 V Adjustment Part <confirmation> <confirmation>

MW TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L3-1 CT3

621 kHz 1,404 kHz

MW/LW IF ADJUSTMENT

Adjust for a maximum reading on level meter.

450 kHz

LW FREQUENCY COVERAGE

ADJUSTMENT

Frequency Display 153 kHz 279 kHz Reading on Digital voltmeter 0.6 ± 0.3 V 5.0 ± 0.1 V Adjustment Part <confirmation> L4

100 kΩ

TP (VT)

• Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.

L W TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L3-2 CT5

162 kHz 261 kHz

Adjustment Location: See page 16.

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