Sony CFD-V8 User Manual

CFD-V8

SERVICE MANUAL

Ver 1.3 2004.09

Model Name Using CD Section CFD-V7

Similar Mechanism Tape Section CFD-V7

CD Mechanism Type (Former Type/New Type) KSM-213RDP/KSM-213CDP

Optical Pick-up Type (Former Type/New Type) KSS-213R/KSS-213C

Tape Transport Mechanism Type MF-V5-117

Canadian Model

AEP Model

UK Model

E Model

Australian Model

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 - 107.0 MHz or 87.6 - 108.0 MHz AM: 531 - 1602 kHz or 530 - 1 710 kHz

Antenna

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

SPECIFICATIONS

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 - 10 000 Hz

General

Speaker

Full range: 10 cm dia., 3.2 Ω, cone type (2)

Outputs

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

Power output

1.8 W + 1.8 W (at 3.2 Ω, 10 % harmonic distortion in AC operation)

Power requirements

For CD radio cassette-corder: 120V AC, 60Hz (CND, TW)

220V AC, 60Hz (KR) 230V AC, 60Hz

(AEP, UK, AUS, CET, IT, SP)

9 V DC, 6 size D (R20) batteries

Power consumption

AC 20 W

9-961-329-04

2004I02-1

– Continued on page 2 –

CD RADIO CASSETTE-CORDER

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

CFD-V8

Ver 1.2

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 x 165 x 256 mm (w/h/d) (16 5⁄8 x 6 1⁄2 x 10 1⁄8 inches) (incl. projecting parts)

Mass

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

Supplied accessory

AC power cord (1)

Design and specifications are subject to change without notice.

• Abbreviation CND : Canadian CET : East European & Russian IT : Italian SP : Singapore AUS : Australian TW : Taiwan KR : Korean

Information For customers in Europe

TABLE OF CONTENTS

Specifications ............................................................................... 1

1. SERVICING NOTES...................................................... 3

2. GENERAL

Location and Function of Controls ....................................... 4

3. DISASSEMBLY

3-1. Cabinet (Front) Sub ASSY, Cabinet (Rear) ................. 5

3-2. Control Board .............................................................. 5

3-3. Cabinet (upper) ............................................................ 6

3-4. Power Board, Inlet Board, BATT (R) Board,

BATT (L) Board ........................................................... 6

3-5. Volume Board, FM SW Board, Main Board ............... 7

3-6. PRE Board, Mechanism Deck,

Optical Pick-up Section, CD Board ............................. 7

3-7. Belt, M601 (Capstan / Reel Motor), “HRP901 Head, Magnetic (Record/Playback)”,

HE901 Head (Erase) .................................................... 8

3-8. Optical Pick-up (KSS-213C) ....................................... 8

4. DIAL POINTER INSTALLATION .............................. 9

5. ADJUSTMENTS

5-1. Mechanical Adjustments............................................ 10

5-2. Electrical Adjustments............................................... 10

6. DIAGRAMS

6-1. IC Pin Function Descrintion ...................................... 13

6-2. Block Diagrams – Tuner/TC Section – .....................15

6-3. Block Diagrams – Main Section –............................. 16

6-4. Block Diagrams – CD Section –................................ 17

6-5. Printed Wiring Boards – Main Section – ................... 18

6-6. Schematic Diagrams – Main Section (1/3) –.............19

6-7. Schematic Diagrams – Main Section (2/3) –.............20

6-8. Schematic Diagrams – Main Section (3/3) –.............21

6-9. Printed Wiring Boards – Control/Power Section –...... 22

6-10. Printed Wiring Boards – Control/Power Section –.... 23

6-11. Schematic Diagrams – CD Section –......................... 24

6-12. Printed Wiring Boards – CD Section –...................... 25

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

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 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 PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

7. EXPLODED VIEWS

7-1. Front Cabinet Section ................................................ 30

7-2. Rear Cabinet Section ................................................. 31

7-3. Upper Cabinet Section...............................................32

7-4. Mechanism Deck Section (1) .................................... 33

7-5. Mechanism Deck Section (2) .................................... 34

7-6. CD Block Section ...................................................... 35

8. ELECTRICAL PARTS LIST ...................................... 36

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

SECTION 1

SERVICING NOTES

CFD-V8

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 pick-up block. Therefore, when checking the laser diode emission, observe more than 30 cm away from the objective lens.

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. Press CD open knob.

2. Open the lid for CD.

3. Push on SWITCH (S801) as following figure.

4. 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 once for the focus search.

Insert a precision screw driver and push SWITCH (S801)

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40°C higher

than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350°C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!

• Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

CFD-V8

LOCATION AND FUNCTION OF CONTROLS

SECTION 2

GENERAL

This section is extracted from instruction manual.

Inserting a cassette

With the side you want to play facing upward

VOLUME

MEGA BASS

Loading a CD

PLAY MODE

ENTER

FM MODE (rear)

Z PUSH OPEN/CLOSE

With the labeled side up

Display

Total track number

OPR/BATT

TUNING

FUNCTION

.,>

Track number

Programd track

DISASSEMBLY

The equipment can be removed using the following procedure.

CFD-V8

SECTION 3

Cabinet (front) sub ASSY

Set

Cabinet (rear) Cabinet (upper)

Control board

Power board, Inlet board, BATT (R) board, BATT (L) board

Volume board, FM SW board, Main board

PRE board, Mechanism deck, Optical pick-up section, CD board

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

3-1. CABINET (FRONT) SUB ASSY, CABINET (REAR)

knob (vol )

cabinet (front) sub assy

Belt, M601 (capstan/reel motor), “HRP901 Head, Magnetic (Record/playback)”, HE901 Head (Erase)

Optical pick-up (KSS-213C)

flat cable (16core) (CN801)

screw

+BVTP 3

cabinet (rear)

screw

+BVTP 3

3-2. CONTROL BOARD

open the Lid (CD)

cabinet (front) sub assy

three screws

+BVTP 3

CONTROL board

three screws

+BVTP 3

lid, battery case

two screws

+BVTP 2.6

three screws

+BVTP 2.6

CFD-V8

3-3. CABINET (UPPER)

two screws +BVTP 3 × 10

open the cassette holder assy by

pressing STOP/EJECT button.

screw +BVTP 3 × 12

STOP/EJECT

button

three screws

+BVTP 3

open the Lid (CD)

cabinet (upper)

screw

+BVTP 3

remove the handle in the direction of the arrow.

CNP902

(POWER board)

3-4. POWER BOARD, INLET BOARD, BATT (R) BOARD, BATT (L) BOARD

BATT (R) board

CNP907

POWER board

cabinet (rear)

CNP907

two screws

+WH 3

CNP90

+BVTP 3 × 10

four screws

two screws

+BVTP 3 × 10

BATT (L) board

INLET board

cabinet (rear)

)

3-5. VOLUME BOARD, FM SW BOARD, MAIN BOARD

)

remove solder

(four places)

three screws

+BVTP 3

MAIN board

screw

+BVTP 3

FM SW board

remove solder

(five places)

CFD-V8

wire, parallel (CN802)

(15 core)

KH801

two screws

+BVTP 3

S801

VOLUME board

CNP304

wire, parallel (CNP303

(10 core)

cabinet(upper)

3-6. PRE BOARD, MECHANISM DECK, OPTICAL PICK-UP SECTION, CD BOARD

screw

remove solder

(four places)

two screws

+PWH 2.6

CD board

optical pick-up section

+BVTT 2

wire, parallel (CNP701

(16 core)

two screws +PWH 2.6 × 10

two screws +BVTP 3 × 10

screw +BVTT 2 × 6

remove solder

(four places)

PRE board

screw

+BVTP 3

mechanism deck

cabinet(upper)

CFD-V8

)

3-7. BELT, M601 (CAPSTAN / REEL MOTOR), “ HRP901 HEAD, MAGNETIC (RECORD/PLAYBACK) ”,

HE901 HEAD (ERASE)

HRP901 head, magnetic (record/ playback)

HE901 head (erase)

claws

3-8. OPTICAL PICK-UP (KSS-213C)

belt

two screws

+B 2.6

mechanism deck

M601

(capstan/reel motor

claws

shaft, sled

cover, CD

claw

optical pick-up (KSS-213C)

claw

bend the stopper

gear

claw

chassis ASSY, motor (spindle)

SECTION 4

)

DIAL POINTER INSTALLATION

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

1 Align the pointer with the groove of “cabinet (front) sub ASSY” and insert it as shown in the illustration. 2 Align knob (TU) with “cabinet (front) sub ASSY” and fasten the screw.

Cabinet (front) sub ASSY

Pointer

knob (Tu)

CFD-V8

Screw (+BVTP 2.6 × 8)

3 Turn the tuning knob fully in the direction of the allow as shown in the illustration. 4 Turn the tuning capacitor gear fully in the direction of the allow as shown in the illustration. 5 Fasten the “cabinet (front) sub ASSY” and cabinet (rear) with the screws.

Tuning knob

Tuning capacitor gear

Cabinet (front) sub ASSY

Cabinet (rear

CFD-V8

SECTION 5

ADJUSTMENTS

5-1. MECHANICAL ADJUSTMENTS

PRECAUTION

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

record/playback head pinch roller erase head rubber belts capstan

2. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head demagnetizer 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 (9V) unless otherwise noted.

Torque Measurement

Torque Torque Meter Meter Reading

1.77 – 5.88 mN•m

Forward CQ-102C (18 – 60 g•cm)

(0.25 – 0.83 oz•inch)

Forward Back Tension

Fast Forward CQ-201B (45 – 95 g•cm)

Rewind CQ-201B (45 – 95 g•cm)

CQ-102C (1.0 – 5.0 g•cm)

Tape Tension Measurement

Torque Meter Meter Reading

CQ-403A

0.1 – 0.49 mN•m

(0.014 – 0.069 oz•inch)

4.42 – 9.31 mN•m

(0.62 – 1.32 oz•inch)

4.42 – 9.31 mN•m

(0.62 – 1.32 oz•inch)

more than 60g

(more than 2.12 oz)

Adjustment Location : Mechanism deck

Tape speed adjustment control inside motor

TUNER SECTION

0dB = 1 µV

AM Section

Function switch : AM Volume : MIN

AM RF signal generator

Put the lead-wire antenna close to the set.

5-2. ELECTRICAL ADJUSTMENTS

TAPE RECORDER SECTION

Standard Output Level

Output terminal HP OUT

load impedance 32 Ω

output signal level 0.25V (–10dB)

Test Tape

Type Signal Used for

WS-48A 3kHz, 0dB Tape Speed Adjustment

Tape Speed Adjustment

Procedure :

Mode : Playback

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

set

Adjustment Value : 3,000Hz Standard Value : 2,940 - 3,060Hz

Frequency difference between the beginning and the end of the tape should be within 1.5% (45Hz).

32Ω

J301 (phones)

0dB = 0.775V

digital frequenc counter

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

FM Section

Function switch : FM Volume : MIN

FM RF signal generator

22.5kHz frequency deviation by 1kHz signal. Output level : as low as possible

set

32Ω

J301 (phones)

0.01µF

level mete

telescopi antenna terminal

CFD-V8

)

5 4 3

oscilloscope

(AC range)

[CD BOARD] (Conductor side)

(GND)

TP (RF)

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

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

T2 455kHz

AM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L4 520kHz

CT4 1,780kHz

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L3 620kHz

CT3 1,400kHz

FM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

T1 10.7MHz

FM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L2 86.5MHz

CT2 109.5MHz

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 TP (RF) and GND on CD board.

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

3. Press the 7 button two times (LPC ON).

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/TV : 200mV TIME/DIV : 500 nS

RF level

0.7 – 1.0 Vp-p (LPC ON)

1.0 – 1.4 Vp-p (LPC OFF

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

L1 86.5MHz

CT1 109.5MHz

Adjustment Location : Main board (See page 12)

CD SECTION

How to put the set into CD Test Mode

1. Set the function switch to power off.

2. Set the function switch to CD.

3. Set Test mode by momentarily shorting both of the IC801 51pin to GND. (Shorting the terminals momentarily is sufficient). The set is into CD test mode (88 is displayed).

4. Turn the power off to release test mode.

[MAIN BOARD] (Conductor side)

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

C844

R851

C801

IC801

C317

51pin

GND

TEST mode : momentarily short

R811

R810

C802

C810

R81 R81 R81 R81

R81

321

R711

R703

R710

R702

JW708

C705

R704

(RF)

C736

JC703

R708

C734

C742

R709

R706

R705

R701

707

709

C731

C703

C743

IC701

R729

CFD-V8

Adjustment Location :

[MAIN BOARD]

(Component side)

L4 : AM Frequency Coverage Adjustment

L3: AM Tracking Adjustment

L1 : FM Tracking Adjustment

T1 : FM IF Adjustmen

T2 : AM IF Adjustment

L2 : FM Frequency Coverage Adjustmen

[MAIN BOARD]

(Conductor side)

CT1 : FM Tracking Adjustment

CT3 : AM Tracking Adjustment

CT2 : FM Frequency Coverage Adjustment

CT4: AM Frequency Coverage Adjustment

SECTION 6

DIAGRAMS

6-1. IC PIN FUNCTION DESCRINTION

IC801 µPD789316GK-503-9ET SIGNAL PROCESSOR, D/A CONVERTER, LCD DRIVE, SYSTEM CONTROL

Pin No. Pin name I/O Description

1 to 4 NC — Not used (open)

5IC—Connect to ground.

6 XT1 I Connect to ground.

7 XT2 — Not used (open)

8 VDD — Power supply terminal (B+ 3.3 V)

9 VSS — Ground terminal

10 CL1 I Oscillator terminal (4 MHz)

11 CL2 — Oscillator terminal (4 MHz)

12 RESET I Reset signal input

13 NC — Not used (open)

14 SYNC–R — Not used (open)

15 CE O Chip enable signal output

16 C–RST O Reset signal output to the LC78645E (IC701)

17 CAPH — Charge pump capacitor terminal

18 CAPL — Charge pump capacitor terminal

19 to 21 VLC0 to 2 — Capacitor connect terminal

22 to 25 COM0 to 3 O LCD common drive output

26 to 43 S0 to 17 — Not used (open)

44 to 48 S18 to 22 O LCD segment drive output

49 S23 — Not used (open)

50 ENTER I Key (ENTER) input

51 MODE I Key (MODE) input 52 PLAY I Key (H PLAY) input 53 FR I Key (l FR) input 54 FF I Key (L FF) input 55 STOP I Key (s STOP) input

56 DOOR I Door open/close input

57 WRQ I Command signal input

58 TEST I Test mode signal terminal input (TEST: L)

59 MUTE O Mute signal output

60 FSEQ I Frame SYNC signal input

61 DRF I DRF (Defect RF) input

62 DO O Serial data output

63 DIN I Serial data input

64 CLK I Clock signal input

CFD-V8

• Circuit Boards Location

VOLUME board

POWER board

PRE board

INLET board

BATT (R) board

BATT (L) board

FM SW boar

CONTROL board

MAIN board

CD board

+ 32 hidden pages