SONY Z120, Z130 Diagram

CFD-Z500/Z501/Z550

SERVICE MANUAL

Ver 1.0 2002. 08

Photo : CFD-Z550

SPECIFICA TIONS

AUDIO POWER SPECIFICATIONS (US Model)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 3.2-ohm loads, both channels driven from 150 - 10,000 Hz; rated 1.8 W per channel-minimum RMS power, with no more than 10% total harmonic distortion in AC operation.

Section

US Model

CFD-Z500/Z501/Z550

Canadian Model

CFD-Z500/Z550

Model Name Using Similar Mechanism CFD-ZW750/ZW770 CD Mechanism Type KSM-213CDM Optical Pick-up Name KSS-213C Model Name Using Similar Mechanism NEW T ape Transport Mechanism Type MF-Z500-117

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

Frequency response

20 - 20,000 Hz +1/–2 dB

Wow and flutter

Below measurable limit

Radio section

Frequency range

FM: 87.6 - 108 MHz AM: 530 - 1,710 kHz

Antennas

FM: Telescopic antenna AM: Built-in ferrite bar antenna

Cassette-corder section

Recording system

4-track 2 channel stereo

Fast winding time

Approx. 120 s (sec.) with Sony cassette C-60

Frequency response

TYPE I (normal): 80 - 12,500 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

Power output (excluding US model)

2.3 W + 2.3 W (at 3.2 ohm, 10% harmonic distortion in AC operation)

– Continued on next page –

9-874-157-01

CD RADIO CASSETTE-CORDER

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

– 1 –

Power requirements

For CD radio cassette-corder: 120 V AC, 60 Hz 9 V DC, 6 size D (R20) batteries For memory back-up:

4.5 V DC, 3 size AA (R6) batteries For remote controller (CFD-Z550 only): 3 V DC, 2 size AA (R6) batteries

Power consumption

AC 15 W

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 For memory back-up: approx. 1 year

Dimensions

Approx. 650 × 265 × 250 mm (w/h/d)

5/8 × 10 1/2 × 9 7/8 inches) (incl. projecting parts)

(25

Mass

Approx. 7.15 kg (15 lb. 12 oz.) (incl. batteries)

Supplied accessory

AC power cord (1) Remote controller (1) (RMT-CZ550A) (CFD-Z550 only)

Design and specifications are subject to change without notice.

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 ! OR DOTTED LINE WITH MARK ! 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.

ATTENTION AU COMPOSANT AYANT RAPPORT

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMA TIQUES 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.

À LA SÉCURITÉ!!

– 2 –

S801

SERVICING NOTES

SAFETY CHECK-OUT

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

LEAKAGE TEST

The AC leakage from 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. Follow the manufacturers’ 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 v oltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage 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)

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

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

1. Turn on POWER button and press CD button to CD position.

2. Open the CD lid.

3. Turn on S801 as following figure.

4. Press the ( P (CD) button.

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

To Exposed Metal Parts on Set

0.15µF

1.5k

Ω

Earth Ground

AC voltmeter (0.75V)

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

– 3 –

TABLE OF CONTENTS

1. GENERAL

Playing a CD ........................................................................... 5

Listening to the radio...............................................................5

Playing a tape .......................................................................... 6

Recording on a tape ................................................................. 6

2. DISASSEMBLY

2-1. Cabinet Assy, Rear .............................................................. 7

2-2. Power Board........................................................................ 7

2-3. CD Block Assy.................................................................... 8

2-4. MD Block Assy, REC SW Board........................................ 8

2-5. Main Board ......................................................................... 9

2-6. CD Board ............................................................................ 9

2-7. Optical Pick-up Section..................................................... 10

2-8. Control Board.................................................................... 10

2-9. Sensor Board (CFD-Z550) ................................................ 11

3. MECHANICAL ADJUSTMENTS............................... 12

4. ELECTRICAL ADJUSTMENTS

Tape Section .......................................................................... 12

Tuner Section.........................................................................13

CD Section ............................................................................ 14

5. DIAGRAMS

5-1. IC Pin Description............................................................. 15

5-2. Circuit Boards Location .................................................... 16

5-3. Block Diagram –CD Section–........................................... 17

5-4. Block Diagram –Main Section–........................................ 19

5-5. Printed Wiring Boards –CD Section– ............................... 21

5-6. Schematic Diagram –CD Section–.................................... 23

5-7. Printed Wiring Board –Main Section–.............................. 26

5-8. Schematic Diagram –Main Section–................................. 29

5-9. Printed Wiring Boards –Control Section–.........................31

5-10. Schematic Diagram –Control Section– ............................. 33

5-11. Printed Wiring Boards –Power Section–........................... 35

5-12. Schematic Diagram –Power Section– ............................... 36

6. EXPLODED VIEWS

6-1. Rear Cabinet Section......................................................... 41

6-2. Front Cabinet Section........................................................ 42

6-3. CD Section ........................................................................ 43

6-4. Tape Mechanism Deck Section-1 ...................................... 44

6-5. Tape Mechanism Deck Section-2 ...................................... 45

6-6. CD Mechanism Section (KSM-213CDM)........................ 46

6-7. CD Mechanism Section (KSM-213RDM)........................ 47

6-8. Speaker Section ................................................................. 48

7. ELECTRICAL PARTS LIST ........................................ 49

– 4 –

SECTION 1

GENERAL

This section is extracted from instruction manual.

– 5 –

– 6 –

(

)

SECTION 2

DISASSEMBLY

• The equipment can be removed using the following procedure.

Set

Cabinet assy, rear CD block assy

MD block assy, REC SW board

Main board

CD board

Optical pick-up section

Power board

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

2-1. CABINET ASSY, REAR

CNP901

Control board

BVTP 3x10

handle

cabinet assy, rear

Sensor board

BVTP 3x1

CFD-Z550

2-2. POWER BOARD

POWER board

BVTP 3x10

BVTP 3x14

BVTP 3x10

– 7 –

CNP902

2-3. CD BLOCK ASSY

(1) Tur n the gear, tuning

capacitor in the direction of the arrow A until it stops.

(2) Tur n the tuning, knob

in the direction of the arrow B until it stops.

gear, tuning capacitor

tuning, knob

BVTP 3x12

CD block assy

BVTP 3x12

CNP302

CNP306

CNP301

2-4. MD BLOCK ASSY, REC SW BOARD

BVTP 3x10

P 3x6

REC SW board

BVTP 3x10

MD block assy

– 8 –

2-5. MAIN BOARD

BVTP 3x10

CNP304

BVTP 3x10

MAIN boar

CNP305

2-6. CD BOARD

CNP703

BVTP 3x10

CD board

CNP702

CNP701

– 9 –

2-7. OPTICAL PICK-UP SECTION

PWH 2.6x10 tapping

optical pick-up section

2-8. CONTROL BOARD

BVTP 3x10

CONTROL board

CNP803

BVTP 3x10

– 10 –

2-9. SENSOR BOARD (CFD-Z550)

SENSOR board

BVTP 3x10

CNP804

– 11 –

SECTION 3

MECHANICAL ADJUSTMENTS

SECTION 4

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. After the adjustments, apply suitable locking compound to the parts adjusted.

5. 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

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)

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

phones jack

digital frequency counter

Ω

T ape Tension Measurement

Mode Tension meter Meter Reading

FWD CQ-403A

more than 100 g

(more than 3.53 oz)

Adjust so that the value on the frequency counter is 3 kHz.

Specification Value:

Digital frequency counter

2,985 to 3,015 Hz

Adjust so that the frequency at the beginning and that at the end of tape winding are between 2,955 to 3,045 Hz.

Adjustment Location:

– 12 –

Tape speed adjustment control inside motor

TUNER SECTION 0 dB = 1 µV

• FM Section

Setting:

RADIO BAND switch: FM

FM RF signal generator

telescopic antenna

0.01 µF

22.5 kHz frequency deviation by 400 Hz signal output level : as low as possible

• AM Section

Setting:

RADIO BAND switch: AM

AM RF signal generator

30% amplitude modulation by 400 Hz signal output level : as low as possible

Put the lead-wire antenna close to the set.

input

set

FM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L2 CT1-2

86.5 MHz 109.5 MHz

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L1 CT1-1

86.5 MHz 109.5 MHz

FM IF ADJUSTMENT

10.7 MHz

AM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L4 CT1-4

520 kHz 1,680 kHz

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L3 CT1-3

620 kHz 1,400 kHz

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

• Remove telescopic antenna in FM section adjustments.

FM VCO Adjustment

Setting:

FM RF SSG

0.001

Modulation: no modulation Output level: 0.1 V (100 dB)

telescopic antenna input

Procedure:

1. Adjust RV1 so that the reading on the frequenc y counter becomes

in 76.0 kHz ± 50 Hz.

Adjustment Location: See page 14.

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

455 kHz

Adjustment Location: See page 14.

– 13 –

Adjustment Location:

– main board (component side) –

ADJUSTMENT

TRACKING

ADJUSTMENT

RV1

FM VCO

CT1-3

CT1-4

L1 CT1-1

CT1-2 L2

T1 FM IF ADJUSTMENT

T2 AM IF ADJUSTMENT

AM FREQUENCY COVERAGE ADJUSTMEN

FM TRACKING ADJUSTMEN

FM FREQUENCY COVERAGE ADJUSTMENT

CD SECTION

CD section adjustments are done automatically in this set. In case of operation check, confirm that focus bias.

FOCUS BIAS CHECK

1. Connect the oscilloscope between IC701 pin #£ (TP RFO) and GND on CD board.

2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)

3. Press the ^ button.

4. Confirm that the oscilloscope waveform is as shown in the figure below. (eye pattern) A good eye pattern means that the diamond shape ( ) in the center of the waveform can be clearly distinguished.

• RF signal reference waveform (eye pattern)

VOLT/DIV : 200 mV (10 : 1 probe in use) TIME/DIV : 500 nS

RF level :

1.3

0.5 Vp-p

When observing the eye pattern, set the oscilloscope for AC range and raise vertical sensitivity.

Test Point:

TP (RFO)

TP(RFO)

– 14 –

+ 32 hidden pages