Sony WM-EX50 Bedienungsanleitung

WM-EX90/FX90

SERVICE

MANUAL

WM-EX50

TABLE

CONTENTS

GENERAL:

westecsstinpiessiniiocntetcncetasanueiaenenaarmnes

Messages,

warnings

and

tipS.........ccsssccccessessseeeeeees

Test

equipment,

Jigs

and

material

.................006

PCAGURG:

Gls

si4

sup

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erseemaacmorses

Location

and

function

controls

...................0ee

User’s

instruction

(WM-EX50

only)

..............

DET

VICE

MOLES:

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FRE

MOV

ccsccrcvasticsrest

titers

cueviausdestandivscnutanne

nus

eews

LCD

BLOCK

INFORMATION(WM-EX50

only)....

Data

code

chart

and

indication

mode

.................

BLOCK.

DIAGRAMS

xeiisssct

sasccnssmunsacchietearlinss

ees

9-10

SCHEMATICS

AND

BOARD

DIAGRAMS

.......

11-19

Semiconductor

layouts

...........cccccsssssssecceeeeeeeeeeenes

POC

Fey

GUE

Ses

haces

neve

veteh

cen

eshite

baesios

cau

Qaeusecesncenrcnsawents

SPARE

PARTS

LIB

ncdGuteecokecetitiaiacs

20-28

Exploded

views

and

mechanical

parts............

20-22

Electrical

parts

cctusctascnctiicenitiaciintivacewsn

23-28

ADUOSTIMERINGS:

sites.

dsSieoessaints

ceuurelstecbentetedecaines

29-32

Mechanical

measurements

...........ceeeeeseeeeeeeeeeneeees

Mechanical

adjustments

...............ceeeeeeeseseeneeeeeeeeee

Electrical

alignments

........cccesscceseeeeeeeeeeeetees

30-32

Adjustment

location

s...cicccccicccasscnvsessicnorersseness

29-30

SPECIE

TIONS

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coccedecteadeceeccinusavedsvsperasniohs

Model

AEP

Model

WM-EX50/FX50

Model

WM-EX50

Canadian

Model

WM-FX50

WWN-FX50

WM-EX50

MT-WMEX50-01

Tape

Transport

Mechanism

WM-FX50

MT-WMFX50-01

Dolby

noise

reduction

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

*DOLBY”

and

the

double-D

symbol

are

trade-

marks

Dolby

Laboratories

Licensing

Corporation.

CASSETTE

PLAYER

WM-EX50

RADIO

CASSETTE

PLAYER

WM-FX50

SONY.

GENERAL

Messages,

warnings

and

tips

CAUTION

Danger

explosion

battery

incorrectly

replaced.

Replace

only

with

the

same

equivalent

type

recommended

the

equipment

manufacturer.

Discard

used

batteries

according

manufacture’s

instructions.

ADVARSEL!

Lithiumbatteri

Eksplosionsfare

ved

fejlagtig

handtering.

Udskiftning

kun

ske

med

batteri

samme

fabrikat

type.

Lever

det

brugte

batteri

tilbage

til

leverand¢ren.

ADVARSEL

Lithiumbatteri

Eksplosjonsfare.

Ved

utskifting

benyttes

kun

batteri

som

anbefalt

apparatfabrikanten.

Brukt

batteri

retuneres

apparatleverand¢ren.

VARNING

Explosionsfara

vid

felaktigt

batteribyte.

Anvand

samma

batterityp

eller

ekvivalent

typ

som

rekommenderas

apparattillverkaren.

Kassera

anvant

batteri

enligt

fabrikantens

instruktion.

VAROITUS

Paristo

voi

rajahtaa,

jos

virheellisesti

asennettu.

Vaihda

paristo

ainoastaan

laitevalmistajan

suosittelemaan

tyyppiin.

Havita

kaytetty

paristo

valmistajan

ohjeiden

mukaisesti.

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

PUBLISHED

SONY.

ATTENTION

COMPOSANT

AYANT

RAPPORT

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

MARQUE

SUR

LES

DIAGRAMMES

SCHE-

MATIQUES

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

SECURITE

FONCTION-

NEMENT.

REMPLACER

CES

COMPOSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

MANUEL

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

Precautions

Notes

battery

Romove

the

battrey

when

you

will

not

use

the

unit

for

long

time

prevent

damage

from

battery

leakage

and

corrosion.

When

the

sound

becomes

unstable,

try

new

battery.

External

power

sources

The

following

external

power

sources

can

con-

nected

through

the

1.5V

jack.

House

current

using

AC-E15L

power

adaptor.

The

illustration

shows

the

polarity

1.5V

jack.

Use

only

power

cord

having

the

same

polarity.

oy,

Test

equipment,Jigs

and

Material

Test

equipment

Digital

multimeter

RFF

signal

generator

signal

generator

Stabilized

power

supply

Speed

checker

Wow

and

Flutter

Frequency

counter

VTVM

Spectrum

analyzer

SONY

Digital

tuning

radio

ICF-2001

equivalents

Feature

Double

Super

heterodyne

receiver

for

WM-F

X50

The

receiver

used

the

double

super

hetero-

dyne

system

which

superior

sensitivity

and

image

sprious

rejection.

System

comparison

chart

WM-FX50

WM-F702

Doubl

Sing]

ouble

super

ingle

super

Systm

heterodyne

(FM)

heterodyne

Detector

Double

pulse

count

Quadrature

55kHz

450kHz

28.6MHz

(1st

IF)

10.7MHz

EMR

150kHz

(2nd

IF)

Filter

element

__|

Monolisic

Ceramic

Method

calculation

NOTE:

Tuned

frequency

local

oscillator

frequency

1st

stage

local

oscillator

frequency

(fo)

(cad

(284

OSC

)

[For

Example]

Tuned

100MHz

—

150kHz

57.5

100

—

150kHz

128.6MHz

2nd

stage

local

oscillator

frequency

57.5MHz

(fixed)

Jigs

Test

tape

Part

Number

WS-48A

(3kHz,

0dB)

7-819-032-11

Cassette

type

torque

meter

CQ-102C

(normal

direction)

8-909-708-22

CQ-102RC

(reverse

direction)

8-909-708-26

CQ-201B

(FF

and

REW)

8-909-708-41

Cassette

type

Tension

meter

CQ-403A

(normal

direction)

8-909-708-92

CQ-403R

(reverse

direction)

8-909-708-95

Screw

locking

compound

Neji

lock

(1401B)

7-432-114-11

Greases

and

Oil

Machine

oil

Hydro

Fruid

NT-68

7-661-018-18

Sankol

FG-84M

7-662-001-36

image

frequency

foil

S13MHa

150kH2)

oro

[For

Example]

Tuned

100OMHz

foil

100MHz

(

SEM

150k)

150kHz

28.9MHz

157.2MHz

foi2

28.9MHz

(Fixed)

local

oscillator

frequency

(fo)

(fs

55kHz)

[For

Example]

Tuned

1000kHz

(1000kHz

55kHz)

2110kHz

image

frequency

(foi)

fol

55kHzX

[For

Example]

Tuned

1000kHz

foi

1000kHz

55kHzX

1110kHz

Location

and

Function

Controls

DIR

listen

the

other

side

the

tape

MEGA

BASS

Listening

powerful

and

heavy

sound

Set

MEGA

BASS

the

desired

position.

aon.

Bass

boosted

the

order

NORM,

MID

and

]

MAX.

oes

MAX

MID

NORM

While

playing

back

hard

and

stressed

sound

with

MEGA

BASS

set

MAX,

the

sound

may

distorted.

this

case,

set

MEGA

BASS

NORM

MID.

DOLBY

Getting

the

best

performance

from

your

tape

For

Dolby

processed

tapes

[IMW-FX50_ONLY|

LOCAL

enna)

SENS

For

normal

reception

—

very

strong

station

signal

causes

noise

Loca,

CLES

SENS

The

noise

will

reduced.

—

wind

the

tape

rapidly

STOP

stop

the

tape

MODE

playback

operation

When

the

playback

starts

from

the

reverse

side

the

cassette,

the

unit

will

shut

off

the

end

that

side.

Playing

back

both

sides

the

cassette

once

MODE

Playing

back

both

sides

the

cassette

hmm

repeatedly

MODECD*

*~)D

woe

METAU

NORM

For

normal

(TYPE

tapes

For

CrOz

(TYPE

II)

metal

(TYPE

IV)

tapes

METALS

NORM

CO,

TAPE

RADIO

CEM

MONO

TAPE

ARO

For

normal

reception

RADIOL

EMMONS

TAPE

Huot

CoD)

hard

hear

the

broadcast

due

noise,

the

noise

will

reduced.

this

mode,

there

stereo

effect.

User’s

Instruction

Setting

the

Before

setting

the

clock,

sure

that

the

clock

indication

appears

the

LCD

display

window.

Ex:

Tosetto

1:15p.m.

Press

the

OPEN

button.

Press

the

CLOCK

button

for

1.5

seconds

more.

Set

the

hour.

Press

the

button

repeatedly

until

you

get

the

desired

setting.

Press

the

CLOCK

button.

Set

the

minute.

Press

the

button

repeatedly

until

you

get

the

desired

setting.

Press

the

CLOCK

button.

Notes

The

hour

display

the

12-hour

system.

you

keep

pressing

the

button,

the

digits

advance

sequence.

The

hour

display

does

not

advance

even

when

the

minute

indication

returns

“00”

after

‘'59”’.

change

the

hour

only

steps

then

press

the

CLOCK

button

twice.

(During

this

operation

the

minutes

and

the

seconds

not

advance.)

change

the

minute

only

steps

but

skip

step

(During

this

operation

the

seconds

advance.)

Inserting

Lithium

Battery

With

the

(plus)

mark

facing

out

Avec

repére

(plus)

vers

l’ex-

térieur

Con

marca

(positiva)

hacia

afuera

Como

lado

(positivo)

voltado

parao

exterior.

Note

the

lithium

battery

compartment

lid

detached

accidental

drop,

etc.

attach

illustrated.

Before

operation,

sure

install

lithium

battery

(supplied).

With

the

lithium

battery

installed,

this

unit

powers

the

clock

and

displays

the

tape

operation

indications

the

LCD

display

window

during

the

tape

playback.

Lithium

battery

life

Approximately

one

year

and

half

normal

operation.

the

lithium

battery

becomes

weak,

the

letters

the

display

will

become

indistinct.

this

case,

replace

the

battery

with

Sony

CR2025

lithium

battery.

Use

another

battery

may

cause

risk

fire

explosion.

After

replacing

the

battery,

reset

the

clock.

Cautions

Keep

the

lithium

battery

out

the

reach

children.

Should

the

battery

swallowed,

consult

doctor

immediately.

Before

use,

wipe

the

battery

with

dry

cloth

assure

good

contact.

sure

observe

the

correct

polarity

when

installing

the

battery.

not

hold

the

battery

with

metallic

tweezers,

otherwise

short-circuit

may

occur.

not

break

the

battery

throw

into

fire

because

may

explode.

Carefully

dispose

the

used

batteries.

Warning

Battery

may

explode

mistreated.

not

recharge,

disassembie

dispose

fire.

Service

Notes

How

check

the

operation

When

audio

board

has

been

removed

from

mechanical

deck.

Depress

the

PLAY

(®)

button

turn

the

S901

(POWER)

and

S902

(PLAY).

AUDIO

BOARD

Component

side

$902

(PLAY)

5901

(POWER)

Wide

mouth

clip

Flexible

Circuit

Board

Repairing

-Keep

the

temperature

the

soldering

iron

around

270°C

during

repairing.

-Do

not

touch

the

soldering

iron

the

same

con-

ductor

the

circuit

board

(within

times).

-Be

careful

not

apply

force

the

conductor

when

soldering

unsoldering.

Notes

Chip

Component

Replacement

-Never

reuse

disconnected

chip

component.

-Notice

that

the

minus

side

tantalum

capacitor

may

damaged

heat.

REMOVAL

Note

the

disassembly

procedure

the

numerical

order

given.

Tuner

unit

(WM-FX50)

SCREW

(M1.4x

SCREW

(M1.4X

)

COVER

TUNER

UNIT

CASSETTE

LID

ASSY

TUNER

FLEXIBLE

BOARD

(By

soldering

iron)

KNOB

(FUNCTION)

take

off

the

tuner

unit

from

cassette

lid

ass’y.

Warm

portion

heater

and

move

slowly

tweezers.

HEATER

Tweezers

Both

sides

adhesive

sheet

LCD

BLOCK

INFORMATION

Clock

operation

LCD

will

operate

clock

indication

with

the

following

conditions.

When

the

data

code

0000

0100

feed

into

input

port.

(data

code

show

chart

When

the

dry

penlight

battery

(AM3/LR6)

Ni-Cd

battery

not

built-

the

battery

case.

Refer

User’s

instruction

’Setting

the

clock”

page

Tape

running

indication

LCD

will

operate

tape

running

indication

mode

when

assembled

the

data

code

chart

PLAY

(FWD)

PLAY

(RVS)

REW

(FWD)

brink

REW

(RVS)

Error

indication

mean’s

notified

the

customer

that

abnormal

operation

when

pushing

the

button

same

time.

The

clock

will

reset

and

indicate

12:

after

all

indicator

light.

Indicator

clock

mode

when

rethium

battery

take

off.

Data

code

chart

and

indication

mode

(LS

OWS

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(20)

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