Sony CFDZ-125, CFDZ-135 Service manual

CFD-Z125/Z135

MICROFILM

SERVICE MANUAL

Photo: CFD-Z135

CD Section

Tape deck Section

US Model

CFD-Z125/Z135

E Model

CFD-Z135

Model Name Using Similar Mechanism NEW CD Mechanism Type KSM-213CDM/Z-NP Optical Pick-up Name KSS-213C/Z-N Model Name Using Similar Mechanism NEW T ape Transport Mechanism Type MF-Z125

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 3.2 Ω loads, both channel driven from 250 – 6,300 Hz; rated 2W 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 + 3/-3 dB Wow and flutter Below measurable limit

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. 110 s (sec.) with Sony cassette

C-60

Frequency response TYPE Ι (normal) : 80 – 10,000 Hz

General

Speakers Full range : 10 cm (4 in) dia., 3.2 Ω, cone

type (2)

Outputs Headphones jack (stereo minijack)

For 16 – 68 Ω impedance headphones

Power output (excluding US model)

2.3 W + 2.3 W (at 3.2 Ω, 10 % harmonic distortion in DC operation)

Power requirements For CD radio cassette-corder :

120V AC, 60 Hz 9V DC, 6 size D (R20) batteries For remote (CFD-Z135 only) : 3V DC, 2 size AA (R6) batteries

Power consumption AC 19W

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CD RADIO CASSETTE-CORDER

Battery life For CD radio cassette-corder:

FM recording

Sony R20P : approx. 7 h Sony alkaline LR20 : approx. 14.5 h

Tape playbac k

Sony R20P : approx. 3.5 h Sony alkaline LR20 : approx. 8 h

CD playback

Sony R20P : approx. 2 h Sony alkaline LR20 : approx. 4.5 h

Dimensions Approx. 622 × 275 × 230 mm (w/h/d)

(24 1/2 × 10 7/8 × 9 1/8 inches) (incl. projecting

parts) Mass Approx. 6.8 kg (15 lb.) (incl. batteries) Supplied accessories AC power cord (1)

Remote controller (1) (CFD-Z135 only) Design and specifications are subject to change without notice.

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leaka ge. Check leakage as described below.

LEAKAGE

The AC leakage fr om any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT -540A. F ollow the manuf acturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a

VOM or battery-operated A C voltmeter . The “limit” indication is 0.75 V, so analog meters must have an accurate low-v oltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A)

TABLE OF CONTENTS

1. SERVICE NOTES ···························································· 3

2. GENERAL ·········································································· 4

3. DISASSEMBLY

3-1. Rear Cabinet ······································································· 9 3-2. CD Block ·········································································· 10 3-3. Main Board, SP Terminal Board ······································ 10 3-4. CD Decoder Board, Lamp Board ····································· 11 3-5. Optical Pick-up Section (KSM-213CDM/Z-NP) ············· 11 3-6. Optical Pick-up (KSS-213C/Z-N) ···································· 12 3-7. Motor Board, Sled Motor (M702) ···································· 12 3-8. Front Board, Sensor Board ··············································· 13 3-9. Mechanism Deck (MF-Z125)···········································13 3-10. Belt, Capstan/Reel Motor (M601)····································14 3-11. Cassette Door ··································································· 14

4. DIAL POINTER SETTING·········································· 15

5. ADJUSTMENTS

5-1. Mechanical Adjustment ···················································· 16 5-2. Electrical Adjustment

Tape Deck Section ···························································· 16 Tuner Section···································································· 18 CD Section ······································································· 20

6. DIAGRAMS

6-1. Circuit Boards Location ··················································· 23 6-2. Block Diagram ································································· 24 6-3. Printed Wiring Board —CD Section — ··························· 29 6-4. Schematic Diagram — CD Section — ·····························32 6-5. Schematic Diagram — Main Section — ························· 35 6-6. Printed Wiring Board —Main Section — ························ 39 6-7. Printed Wiring Board —Front Section — ························ 43 6-8. Schematic Diagram —Front Section —···························45 6-9. IC Pin Function Description ·············································47

7. EXPLODED VIEWS

7-1. Back Cabinet Section ······················································· 49 7-2. Front Panel Section ·························································· 50 7-3. CD Block Section ····························································· 51 7-4. Optical Pick-up Section (KSM-213CDM/Z-NP) ············· 52 7-5. Mechanism Deck Section-1·············································· 53 7-6. Mechanism Deck Section-2·············································· 54 7-7. Speaker Section ································································ 55

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

T o Exposed Metal

Parts on Set

0.15

Fig. A. Using an AC voltmeter to check AC leakage.

1.5 k

Ω

Earth Ground

Voltmeter (0.75 V)

CAUTION

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

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DO TTED 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.

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SECTION 1

mark 1

mark 2

CF1,4

SERVICE NOTES

CHUCK PLATE JIG ON REPAIRING

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

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

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.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

1. Turn POWER switch on with no disc inserted and make Function switch to CD position.

2. Open the lid for CD.

3. Turn on S702 as following figure.

4. Press the ﬂ button.

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

S702

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.

HOW TO CHANGE THE FM CERAMIC FILTERS

This model uses the two ceramic filters of CF1 and CF4. Y ou m ust use the same type of color marked ceramic filters in order to meet same specifications. Therefore, the ceramic filter must change two pieces together since it’s supply two pieces in one package as a spare parts.

Mark 1 Mark 2

red — 10.70MHz

blue — 10.67MHz

orange — 10.73MHz

black — 10.64MHz white — 10.76MHz white white 10.75MHz

yellow — 10.79MHz

Center

frequency

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SECTION 2

GENERAL

This section is extracted from instruction manual.

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— 5 —

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• This set can be disassembled in the order shown below.

SECTION 3

DISASSEMBLY

SET

REAR CABINET (Page 9)

CASEETTE DOOR (Page 14)

CD BLOCK (Page 10)

MECHANISM DECK (Page 13)

MAIN BOARD, SP TERMINAL BOARD (Page 10)

FRONT BOARD, SENSOR BOARD (Page 13)

BELT, CAPSTAN/REEL MOTOR (M601) (Page 14)

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

3-1. REAR CABINET

Screw 2pcs

(+KTP 3 ×12)

CD DECODER BOARD, LAMP BOARD (Page 11)

Screw

(+BTP 3 ×12)

OPTICAL PICK-UP SECTION (Page 11)

Screws 5pcs

(+BTP 3 ×16)

OPTICAL PICK-UP (Page 12)

MOTOR BOARD, SLED BOARD (M702) (Page 12)

Battery Case li

CN304

Rear Cabinet

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3-2. CD BLOCK

CD Block

CN302

Screws 5pcs

(+BTP 3 ×12)

3-3. MAIN BOARD, SP TERMINAL BOARD

SP TERMINAL

Board

CN305

MAIN Boar

Screws 3pcs

(+BTP 3 ×12)

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CN07

CN303

3-4. CD DECODER BOARD, LAMP BOARD

)

CN801

Board

Two claws

CD DECODER

CN706

Screws 2pcs

(+BTP 3 ×10)

Remove solder

LAMP Board (Z135 only)

CN701

CN802

CN703

Lag

3-5. OPTICAL PICK-UP SECTION

(KSM-213CDM/Z-NP)

Optical Pick-up Section (KSM-213CDM/Z-NP

Screws 4pcs

(+PTPWH 2.6 ×8)

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3-6. OPTICAL PICK-UP

(KSS-213C/Z-N)

Two claws

CD Pick-up Cover

Two claws

Optical Pick-up

(KSS-213C/Z-N)

A gea

Claw

Sled shaft

3-7. MOTOR BOARD, SLED MOTOR (M702)

Screws 2pcs

(+P 2 × 3)

Claw

Sled motor (M702)

MOTOR Board

Remove

two solders

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Remove

two solder

3-8. FRONT BOARD, SENSOR BOARD

)

Earth wire

CN003

!¡

SENSOR board

(Z135 only)

Two claws

Screws 3pcs

(+BTP 3 ×10)

Remove solder

Two claws

FRONT board

Three

claws

CN303

Remove solder

Function button

3-9. MECHANISM DECK (MF-Z125)

CN305

Mechanism deck

(MF-Z125)

Two claws

lag

Screws 2pcs

(+BTP 3 ×10

CN302

Press the eject ( p 6) button

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+ 29 hidden pages