Sony CFS-W435S User manual

CFS-W435S_

SERVICE

MANUAL

Model

East

European

Model

MF-W435

SPECIFICATIONS

Frequency

range

Saudi

Arabia

model

FM:

87.6-

107

MHz

MW:

530~

1,605

kHz

SWI:

2.3~7

MHz

SW2:

7-22

MHz

United

Arab

Emirates

model

FM:

87.6-

108

MHz

MW:

530-

1,605

kHz

SWI:

2.3-7

MHz

SW2:

MHz

East

European

model

FM:

87.6-

107

MHz

MW:

531-

1,602

kHz

SWI:

2.3-7

MHz

SW2:

7-22

MHz

Aerials

FM/SW:

Telescopic

Mw:

Built-in

ferrite

bar

Recording

system

4-track,

2-channel

stereo

Frequency

response

80-

8,000

Speakers

Two

way

Approx.

dia.

woofer

Approx.

dia.

tweeter

Output

Headphones

jack

(stereo

minijack)

(1)

for

300

ohm

impedance

headphones

Maximum

power

output

(2.5

W+2.5

Power

requirements

East

European

model

220-230

AC,

Other

model

110~-

120/220-

240

AC,

50/60

selectable

DC,

six

R20

(size

batteries

Power

consumption

operation

Batteriy

life

Batteriy

;

recording

Sony

SUM-1

(NS)

Approx.

8.5

hours

Sony

AMI

(N)

alkaline

Approx.

hours

Dimensions

Approx.

680

216

188

(w/h/d)

incl.

projecting

parts

and

controls,

not

incl.

handle

Mass

Approx.

5.8

incl.

batteries

Accessory

supplied

Mains

lead

(1)

Design

and

specifications

are

subject

change

without

notice.

RADIO

CASSETTE-CORDER

SONY.

TABLE

CONTENTS

Section

Title

Page

Specifications

---:-:

eee

cece

teen

nec

erences

GENERAL

Location

and

Function

Controls

-----+-----+-

DISASSEMBLY

--------:+--

eee:

bees

ADJUSTMENTS

3-1.

Mechanical

Adjustments

-+---++++++eeeeees

3-2.

Electrical

Adjustments

Tape

Section

res

Tuner

Section

DIAGRAMS

4-1.

Block

Diagram

+++:

++see

errr

eee

cease

4-2.

Printed

Wiring

Boards

--+-++++++++++sees

ee.

4-3,

Schematic

Diagram

EXPLODED

VIEWS

«------sceeee

teeters

ELECTRICAL

PARTS

LIST

..-.--------:

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

MARK

DOTTED

LINE

WITH

MARK

THE

SCHEMATIC

DIAGRAMS

AND

THE

PARTS

LIST.

ARE

CRITICAL

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

SHOWN

THIS

MANUAL

SUPPLEMENTS

PUB-

LISHED

SONY.

SECTION

GENERAL

LOCATION

AND

FUNCTION

CONTROLS

4-BAND

GRAPHIC

EQUALIZER

controls

FUNCTION

selector

Telescopic

antenna

BASS

BOOST

control

BAND

selector

OPR/BATT

indicator

FINE

TUNING

knob

SONY

SPEAKER

terminals

(rear)

soon

wor

TUNING

knob

PHONES

jack

VOLTAGE

selector

(rear)

Microphone

VOLUME

knob

jack

(rear)

Cassette

holder

————_

n°

Cassette

holder

Tape

operation

button

Tape

operation

buttons

(DECK

SECTION

DISASSEMBLY

Note:

the

disassembly

procedure

the

numerical

order

given.

Remove

rear

cabinet

ass'y

removing

screws

+P3

AUDIO

BOARD

ASS’Y

+BVTP3

LED

board

+BVTP3

@®

audio

board

GEQ

holder

board

—"QV

+BVTP3

GEQ

holder

board

CASSETTE

HOLDER

ASS’Y

+BVTP3

cassette

holder

damper

Press

claw.

“S

recision

Slide

ccrewdtivél

cassette

lid.

equivalent

SoA

casstte

spring

—4—

TUNER

BOARD

ASS’Y

VOL

BOARD

+BVTP3

Press

knob

(VOL)

with

screwdriver.

+BVTP3

@+BVTP3

connector

from

CNP304

the

audio

board

tuner

board

ass'y

band

knob

(VOL)

+BVTP3

{

knob

(FINE

TUNE)

POINTER

SETTING

scratched

line

Adjust

the

pointer

emai

+PTPWH3

the

scratched

line

pointer

the

chassis

(tuning).

tuning

knob

@®

Turn

the

tuning

cap

drum

fully

the

arrow

direction.

chassis

(tuning)

chassis

(tuning)

tuner

board

Slide

the

printer

the

chassis

(tuning).

chassis

(tuning)

SECTION

ADJUSTMENTS

3-1.

MECHANICAL

ADJUSTMENTS

PRECAUTION

Clean

the

following

parts

with

denatured-alcohol-moistened

swab:

record/playback

head

pinch

roller

erase

head

rubber

belts

capstan

idlers

Demagnetize

the

record/playback

head

with

head

demagentizer.

(Do

not

bring

the

head

demagnetizer

the

erase

head.)

not

use

magnetized

screwdriver

for

the

adjustments.

After

the

adjustments,

apply

suitable

locking

compound

the

parts

adjusted.

—

The

adjustments

should

performed

with

the

rated

power

supply

voltage

unless

otherwise

noted.

Torque

Measurement

Playback

CQ-102C

nos

CQ-102C

CQ-201B

Tape

Tension

Measurement

1.5

—

5.5

gecm

Back

tension

(0.021

—

0.076

ozeinch)

Deck-A:

than

80g*cm

(More

than

1.12

ozeinch)

Deck-B:

than

5Sgecm

(More

than

0.76

ozeinch)

Rewind

Fast

foward

Tension

Meter

Reading

CQ-403A

than

100

(3.53

0z)

3-2.

ELECTRICAL

ADJUSTMENTS

TAPE

SECTION

The

adjustments

should

performed

the

order

given

the

service

manual.

(As

general

rule.

Playback

circuit

adjustment

should

completed

before

performing

recording

circuit

adjustment.)

The

adjustments

should

performed

for

both

L-ch

and

R-ch

unless

otherwise

indicated.

Switch

position

FUNCTION

5:4

340408

sasaetawinreaee

TAPE

(RADIO

OFF)

GRAPHIC

EQUALIZER

«+

+++srserererecssersseens

center

click

BALANCE

0ciw

eon

atraeewanwhen

eran

iaek

anaes

center

click

VOLUME

sate

eed

nar

cea

adaaenetates

mechanical

center

BASS

BOOST

-rrrcsterereeeees

ttteees

«+++

mechanical

center

Standard

input

level

Input

level

3.085

(

—

dB)

Standard

output

level

Output

level

0.775

dB)

0.25

V(—

dB)

Test

Tape

[Type

Signal

Weed

tor

P-4-A063

6.3

kHz,

—

azimuth

speed

adjustment

dB=0.775

Record/Playback

Head

Azimuth

Adjustment

Procedure:

Mode:

playback

test

tape

P-4-A063

(6.3

kHz,

—

dB)

PHONES

jack

Turn

the

adjustment

screw

for

the

maximum

output

levels.

these

levels

not

match,

turn

the

adjustment

screw

until

both

output

levels

match

together

within

dB.

position

L-CH

R-CH

angle

Phase

Check

Mode:

playback

test

tape

P-4-A063

(6.3

kHz,

—

dB)

L-CH

oscilloscope

PHONES

jack

Screen

pattern

inphase

45°

90°

135°

180°

erreyenenctermerreereed

—

\emenenrnreypeennnnsna

good

wrong

After

the

adjustment,

lock

the

screws

with

locking

compound.

Adjustment

Location:

First

remove

cassette

lids.

Deck

screw

driver

Press

“>”

button.

Tape

Speed

Adjustment

Setting:

Mode:

playback

Procedure:

speed

checker

LFM-30

digital

frequency

counter

test

tape

WS-48B

kHz,

dB)

Tet

PHONES

jack

Adjustment

Values:

Adjustment

part

Speed

checker

Digital

frequency

counter

RV303

2,970

3,000

Frequency

difference

between

the

beginning

and

the

end

the

tape

should

within

1.5%

(45

Hz).

‘

Note:

high

speed,

Adjustment

not

reguired.

Adjustment

Location:

Audio

board

TUNER

SECTION

[FM]

SSG

0.01

telescopic

antenna

22.5

kHz

frequency

deviation

Na)

400

signal.

output

level:

low

possible

Mw]

SSG

Put

the

lead-wire

antenna

the

set.

aed

30%

amplitude

modulation

400

signal

output

level:

low

possible

[SW]

SW2

FREQUENCY

COVERAGE

ADJUSTMENT

Adjust

for

maximum

reading

VTVM.

FINE

TUNE

Mechanical

center

6.8MHz

SSG

SW2

TRACKING

ADJUSTMENT

12PF

telescopic

Adjust

for

maximum

reading

VTVM.

relate

6.8

MHz

30%

amplitude

modulation

OND)

400

signal.

Output

level

:as

low

possible

VTVM

VCO

Adjustment

Procedure:

telescopic

antenna

FMRF

SSG

terminal

(CN2)

PHONES

jack

Repeat

the

procedures

each

adjustment

several

times,

and

the

frequency

coverage

and

tracking

adjustments

should

finally

done

the

trimmer

capacitors.

Carrier

frequency:

MHz

Modulation:

modulation

Output

level:

0.032

(90

dB)

Connect

frequency

counter

and

pins

IC1

shown

the

figure

below.

Tune

the

set

MHz.

Adjust

RV1

for

kHz

500

reading

the

frequency

counter.

ADJUSTMENT

Adjust

for

maximum

reading

VTVM.

‘10.7

MHz

FREQUENCY

COVERAGE

ADJUSTMENT

‘i

Adjust

for

maximum

reading

VTVM.

(

Saudi

Arabia

model

{

East

European

model

frequency

counter

86.5

MHz

(87.35

MHz)

[64

MHz}

tuF

TC2

109.5

MHz

(107.8

MHz)

[109.5

MHz]

per

109

Mie

107.8

wire)

(102

My]

ADJUSTMENT

Adjust

for

maximum

reading

VM.

455

kHz

FREQUENCY

COVERAGE

ADJUSTMENT

Adjust

for

maximum

reading

VTVM.

520

kHz

TC4

1680

kHz

TRACKING

ADJUSTMENT

Adjust

for

maximum

reading

VTVM.

620

kHz

TC3

1400

kHz

SW1

TRACKING

ADJUSTMENT

Adjust

for

maximum

reading

VTVM.

Adjusting

Location

[TUNER

BOARD]

TRACKING

—

Component

Side

—

noe

FMIF

FMVCO

ANT1—-TC3

RVI

CT1

SW1

FREQUENCY

COVERAGE

FREQUENCY

COVERAGE

Tc2

Telescopic

antenna

CN2

terminal

“

TC1

TRACKING

SW2

FREQUENCY

CT2

FREQUENCY

TC4

COVERAGE

Swi

Sw2

TRACKING

{AUDIO

BOARD]

—

Component

Side

—

RV303

TAPE

SPEED

tor

COVERAGE

—

SECTION

DIAGRAMS

4-1.

BLOCK

DIAGRAM

ANT2

FM/SW

TELESCOPIC

ANTENNA

REG OUT

tc1

FRONT

END/AM,

/MPX

$403

OECK

(PB)

$401

DECK

(PB)

$402

DECK

(POWER)

$404

OECK

(POWER)

SWI

OSC

ANT

S1-5

S1-1

SW2

ANT Sw2

OSC

{

ANT1

Tes

ANT

“

DECK-A

[AUDIO

BOARD)

HP601

PB,

CNPS01

—

OECK~B

CNP3502

HRP6O1

REC/PB

“

CNP3O3

CNP303

(272)

(172)

Ava

HEG6OT

ERASE

eaiee

(REC/PB)

O O

+6V

$301-5

{

gee

Py Ed

«a

(REC

BOARD]

(€201

PRE

AMP

{TUNER

cy,

BAND

MUTING

SwWwiTCH

‘CFS-W435S

BOARD)

Rv301

SIGNAL

PATH

-—

[eeabuie

Fount

zen

]—

és

BASS

;

(avn

lesa

|Gne

same

ieee

VOLUME

:PB

DECK~-A

{

BOARD

:PB

DECK-B

Pape

C>:

REC

DECK-B

avsoz

[vorume

]

GRAPHIC

;

EQUALIZER

(C203

EXz

CNP304

AMP.

1¢202

POWER

AMP

J301

SP101

SP201

SWITCH

Q300,

505

CN1

Lo?

NOR/ZHIGH

SWITCH

Q308

DUBBING

SWITCH

Q3506,

509

$3502

FUNCTION

TAPE

RADIO

OFF

{

DUBBING

NORM

DUBBIMG

HIGH

{

RADIO

+6V

REG

@3504

=10=

RV305

SPEED

CONTROL

Q307

CNPSOS

(272)

M901

REEL/CAPSTAN

[oo

¢ |

220-240Vv

110-120V

CNVB01

IN~

T901

POWER

TRANSFORMER

D901-304

CNPBO1

ORY

BATTERY

SIZE

7O"

(IEC

DESIGNATION

LR20)

GPCSx1.5V

BATTERY

BOARD

D503

OPR/BATT

{LED

BOARD)

ECM301

€2-3,

fae]

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