Sony WM-AF22 Manuale utente

—-

Photo

WM—AF22

(See

page13)

Mode!

Name

Using

Similer

Mechanism

Tape

Transport

Mechanism

Type

Canadian

Model

WM-AF22

AEP

Model

WM-BF22

Model

WM-AF28

AEP

Model

WM-BF28

WM-31/41

MF-WMAF

22-04

MF-WMBF22-04

SPECIFICATIONS

FM:

87.5

108

MHz

(Italian

model)

87.6

107

MHz

(West

German

model)

87.6

108

MHz

(Other

model)

AM:

526.5

1,606.5

kHz

(italian

model)

5§31-1,602

kHz

(West

German

model)

530

1,605

kHz

(Other

model)

15,000

For

E-model

5SmW

operation

(at

10%

harmonic

distortion)

load

impedance

16ohms

For

other

countries:

mW+10mW

operation

(at

10%

harmonic

distortion)

load

impedance

ohms

Frequency

range

Frequency

response

Power

output

Power

requirements

Two

(size

AA)

batteries

Sony

rechargeable

battery

BP-700

jack

accepts

Optional

Sony

AC-D2L

power

adaptor

available

United

Kingdom

for

use

240V

AC,

Hz.

available

Canada

for

use

120V

AC,

available

other

countries

for

use

120V

AC,

220V

AC,

Battery

life

Approx.

hours

tape

playback

and

approx.

hours

reception,

using

Sony

alkaline

batteries

AM3

(N).

Dimensions

WM-AF22/BF22:

Approx.

134

«31.5

(w/h/d)

Other

models:

Approx.

134

«32.5

(w/h/d)

not

incl.

projecting

parts

and

controls

WM-AF22/BF22:

Approx.

2259

Other

models:

Approx.

230g

incl.

batteries,

not

incl.

other

accessories

For

Canada

and

the

United

Kingdom:

Stereo

Headphones

Weight

Accessories

supplied

Their

defferences

are

shown

the

table

below.

WM-AF22

WM-BF22

WM-BF28

WN-AF

This

instruction

manual

covers

WM-AF22/BF22and

WM-AF

/BF

28.

Rechargeable

Battery

charger

(BC-700)

Headphones

Earphones

sensitivity

selector

Stereo

headphones

For

United

Kingdom:

Stereo

headphones

For

other

countries:

Stereo

earphones

Ear

adaptors

DX/LOCAL

Optional

Supplied

Optional

STIMONO

Stereo

headphones

DX/LOCAL

Optional

Accessories

—Note

power

adaptor

car

battery

cord

NiICROFILM

(Open-air

type,

For

other

countries:

Stereo

earphones

(Open-air

type,

Ear

adaptor

(2)

For

only

WM-AF28/BF

28:

Rechargeable

battery

(1)

Battery

charger

(1)

power

adaptor

AC-D2L

Car

battery

cord

DCC-70

Battery

case

EBP-500B

Rechargeable

battery

BP-700

Battery

charger

BC-700

Stereo

active

speaker

system

SRS-30,

SRS-50

not

manufactured

Sony

used,

fuse

the

car

battery

cord

and

the

polarity

the

plug

must

illustrated.

RADIO

CASSETTE

PLAYER

must

installed

the

power

adaptor

WM-AF22/AF28/BF22/BF28

Flexible

Circuit

Board

Repairing

Keep

the

temperature

the

soldering

iron

around

270°C

during

repairing.

not

touch

the

soldering

iron

the

same

conduc-

tor

the

circuit

board

(within

times).

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.

WM-AF22/AF28/BF22/BF28

SECTION1

DISASSEMBLY

AND

INSTALLATION

—

“41-1,

CASSET

HOLDER

ASSY

REMOVAL

1—3,

CASSET

HOLDER

ASSY

INSTALLATION

Open

the

cassette

holder,

Note

:Follow

the

disassembly

procedure

the

numerical

Move

the

left

latch

the

direction

the

arrow

order

given,

—@

release

it,

Release

the

right

latch.

Remove

the

cassette

spring.

1—2.

CABINET

(REAR)

ASSY

REMOVAL

Note

:Follow

the

disassembly

procedure

the

numerical

order

given.

Insert

driver

(—)

the

portion

(3),

Move

the

driver

the

direction

the

arrow

@).

Release

the

claw

(%),

cabinet

(front)

WM-AF22/AF28/BF22/BF28

SECTION

—.

MECHANICAL

AND

ELECTRICAL

ADJUSTMENTS

MECHANICAL

ADJUSTMENTS

PRECAUTION

Clean

the

following

parts

with

denatured—alcohol—

moistened

swab

playback

head

capstan

idlers

rubber

belts

Demagnetize

the

playback

head

with

head

demagne—

pinch

roller

tizer,

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

(0.31—0,.6302

inch)

1—2.5g

Tape

Tension

Measurement

CQ-403A

than

90g

(1.260z)

Fast

Forwand

55—

150g

ELECTRICAL

ADJUSTMENTS

CASSETTE

SECTION

Playback

Head

Phase

Check

Note

:When

replacing

the

head,

check

the

both

L-ch

and

R-ch

phases,

Procedure

Phase

Check

Mode

playback

test

tape

P-4-A063

L-CH

(6.3kHz,

—10dB)

180

oscilloscope

headphones

jack

(earphones)

Tape

Speed

Adjustment

Procedure

Mode

playback

speed

checker

test

tape

digital

frequency

WS-48A

counter

(3kHz,0dB)

headphones

jack

(earphones)

Specification

speed

checker

digital

frequency

counter

Frequency

difference

between

the

beginning

and

the

end

the

tape

should

within+2.5%

(+75%Hz).

Adjustment

Location

ELECTRICAL

ADJUSTMENTS

-|TUNER

SECTION

signal

generator

Put the

lead-wire

antenna

the

set.

30%

amplitude

modulation

400Hz

signal

Output

lavel:

low

possible

signal

generator

22.5kHz

frequency

deviation

1kHz

signal

;

Output

level:

low

possible

antenna

terminal

Note

For

adjustment

WM—BF22/BF28

BAND

STEREO.

WM-AF22/AF28/BF22/BF28

headphones

jack

@Repeat

the

procedures

each

adjustment

several

times,

and

the

frequency

coverage

and

tracking

adjustments

should

finally

done

the

trimmer

capacitors.

(

):WG

model

):IT

model

Frequency

Coverage

Adjustment

((.))

WG,

model

Pointer

Adjustment

jeaueney

position

part

86.0MHz

((87,.35MHz))

109.5MHz

(107.8MHz)

[108,25MHz]

‘f

minimum

maximum

Tracking

Adjustment

frequency

86.

OMHz

maximum

(87,35MHz)

109.5MHz

(107.8MHz)

maximum

[108.25MHz]

Frequency

Coverage

Adjustment

pen

Adjustment

Reading

505kHZ

minimum

((51

'5kHz))

maximum

1,680kHz

meumum

((1,631.3kHz))

Tracking

Adjustment

and

set

frequency

maximum

Alignment

and

set

frequency

455kHz

(468kHz)

maximum

(

model

ADJUSTMENT

LOCATION

’

‘Gu

component

side

—

WM-AF22/AF28/BF22/BF28

SECTION

DIAGRAMS

Note:

oO-——-:

parts

extracted

from

the

component

side.

Semiconductor

Location

e——

parts

extracted

from

the

conductor

side.

parts

mounted

the

conductor

side.

indicates

side

identified

with

part

number.

®)

Through

hole.

5552

Pattern

the

rear

side.

[-]

Chip

components

extracted

from

the

rear

side

ISS123

XN1501

ila

XN6501

]

SOK

—

TA8122AF

(Top

view)

re)

eat

WM-AF22/AF28/BF22/

HP9O!

HEAD

ealcadiantenieadbenienioesedanl

—

: :

——

¢)

FERRITE-ROD

: :

Pore

WM-AF22/AF28

;

)

;

[sens

NORMAL

LOCAL

}

CrO2/METAL

$30I-1

WM-BF

22/BF

MONO

—

—_

—

TSC

[wM-AF22/ar2e

22P

24P

lop

ww-

|__WG

27P|30P

10P

Hate

27P|30Pp

13P

EAEP,

UR]

22P[24P

10P

cv3

Peewee

‘

J302

PHONES

ORY

SATTERY

ERNIE

SES

SIZE°AA”

(EC

DESIGNATION

R6)

2PCsS.3V

‘

“RVBOL

cero

;

| : |

RADIO/TAPE

rs,

TAPE

——>

RADIO

<—

{RADIO

OFF

}

fo.

’

‘

Bee

eae

'WM-AF22/AF28/BF22/BF28

WM-AF22/AF28/BF22/BF28

Wee

Coots

WN-BF

22/BF

err

;

ONom

st?

yet

aac.

<—FM

peek

[MAIN

BOARD)

FERRITE-ROD

FM RF

osc

OSC

;

[MODE}s301-1—!

coe

ANTENNA

ges

’

KOO

vas

TASI22AF

;

FM/AM

FRONT

END,

ala

AMP,DET

...

......

ede

)

;

2.25)

‘

DECODER

WM-~AF

aree

nee

LOCAL®-DX

See:

CPi

‘

(ele

eee

eles

B.P.

$303

RADIO«—TAPE

IRADIO

OFF)

5303-2

$303-1

XN6SOL

SWITCH

Q101,

Q201

XNI5O1

fosclea

(2/0)

XN6501

BUFFER

LA4570M

;

POWER

AMP

Loft

ete

(Se

eee.

Len

‘

aie

eee

PHONES

CIO

1000p

(13)

HP901

foxcioe

B(!/2)

«$304

HEAD

LA4570M

l_/\

power

PRE

AMP

colo

1000p

Ren

oie.

M901

‘-

—

}

moToR

Xneso!

ahieiee

2.2

J301

S57,

‘E

ears

tae

iia

cee

sae

AIRE

TOTAL

CURRENT

$301-2

SAGE.

305-56

TAPE

PLAY:

5mA

ayy

oar

REW;

1OSmA

cst

;

CrO2/MET

AL@-

NORMAL

“Ss

eran

DRY

BATTERY

SIZE

"AA"

DESIGNATION

R6)

—

2Pcs

3V.

pot:

eae

Total

current

measured

with

cassette

installed.

All

capacitors

are

unless

otherwise

noted.

pF:

uwuF

Power

voltage

and

fed

with

requrated

power.

5OWV

less

are

not

indicated

except

for

electrolytics

supply

from

external

power

voltage

jack.

and

tantalums.

WM-

LOCAL

internal

component.

WM-BF22/BF28

Anais

Voltage

and

waveforms

are

with

respect

ground

wt:

printed

resistor.

§301-2

;

taPE

under

no-signa!

(detuned)

conditions.

mark:

PLAY

$302

BAND

sone

(

$303

FUNCTION

TAPE

cate

OWER

Voltage

variations

may

noted

due

normal.

produc-

tion

tolerances.

;

Signal

path.

[7]:

adjustment

for

repair.

:PB(DECKA)

NOTE:

The

mechanical

parts

with

reference

number

the

exploded

views

are

not

supplied.

‘The

construction.

parts

assembled

Part

are

indicated

with

collation

num-

ber

the

remark

column.

Items

marked

“*"

are

not

stocked

since

they

.are

seldom

required

for

routine

service.

Some

delay

should

antici-

pated

when

ordering

these

items.

(1)

RXEX

SES

SECTION

EXPLODED

VIEW

Due

standardization,

parts

with

part

number

suffix

-XX

and

-X

may

dif-

ferent

from

the

parts

specified

the

components

used

the

set.

Color

Indication

Appearance

Parts

Example:

(RED)...

KNOB,

BALANCE

(WHITE)

Cabinet’s

Color

Parts’

‘Color.

-AF22/AF28/BF22/BF28

The

components

identified

mark

dotted

line

with

mark

are

critical

for

safety.

epiace

only

with

part

number

specified.

Les

composants

identifiés

par

une

marque

sont

critiques

pour

sécurité.

ies

remplacer

que

par

une

piece

portant

numéro

spécifé.

~WM-AF22/AF28/BF22/BF28

Ref.No

Part

No.

NON

BD DD

DODDS

DD Fe

et et

SESE

SSR

OUND

ENMOWOMU

ONAMNEwWNe

3-346-518-01

3-346-522-01

X-3346-503-1

X-3346-505-1

3-335-604-01

3-346-527-01

3-346-539-01

3-346~-526-01

3-346-528-01

3-346-513-0601

3-346-514-01

3-346-515-01

3-346-512-01

—3-346-512-11

3-346-513-11

3-346-514-11

3-346-515-11

3-335-605-01

3-346-502-01

3-343-358-01

3-346-538-01

3-346-503-01

3-346-504-01

3~346-525-01

3-346-508-01

3-346-508-11

3-346-508-21

—

3-346-508-31

3-346-721-01

3-346-721-11

3-346-721-21

3~346-721-31

Description

—

Remark

CLIP,

BELT

PLATE,

LOCK

GEAR

ASSY,

MIDWAY

WHEEL

ASSY,

CAPSTAN

BELT,

MIDWAY

LEVER

(REW)

SPRING

(FR)

LEVER

(FF)

LEVER

(STOP)

(WM-AF22/BF22)....BUTTON

(FF)

(WM-AF22/BF22)....

BUTTON

(REW)

(WM-AF22/BF22)....BUTTON

(STOP)

(WM-AF22/BF22)....

BUTTON

(PLAY)

(WM-AF28/BF28)....

BUTTON

(PLAY)

(WM-AF28/BF28)....BUTTON

(FF).

(WM-AF28/BF28)....

BUTTON

(REW)

(WM-AF28/BF28)....BUTTON

(STOP)

SPRING,

COMPRESSION

KNOB

(TU)

RING,

RETAINING

SPRING

(GROUND)

POINTER

COVER,

KNOB

GEAR

REEL)

(WM-~AF22

BLK)....CABINET

(FRONT)

(CF-A)

(WM-AF22

GRY)....CABINET

(FRONT)

(CF-A)

(WM-BF22

BLK)....CABINET

(FRONT)

(CF-A)

(WM~BF22

GRY)....CABINET

(FRONT)

(CFA)

(WM-AF28

BLK)....CABINET

(FRONT)

(WM-AF28

GRY)....CABINET

(FRONT)

(WM-BF28

BLK

AEP,

IT,

UK)....

CABINET

(FRONT)

(WM-BF28

GRY

AEP,

IT,

UK)....CABINET

(FRONT)

Ref.No

Part

No.

30.

32,

“33

36.

901

HPS01

3-346-721-41

3-346-721-51

3-346-517-01

3~346-517-11

3-346-5)7-21

3-346-517-31

3-346-509-01

X-3346-502-1

X-3334-005-1

X-3346-504-1

3-346-516-01

3-335-608-01

3-334-089-01.

3-346~-523-01

3-335-652-01

X~3346-501-1

3-334-412-01

3-334-057-01

3~346-506-01

3-346-506-11

3-346-506-21

3-346-506-31

X-3346-541-1

X-3346-542~1

X~3346-543-1.

A~-3060-103-A

A~-3108-292-A

1-402-361-11

Description

Remark

(WM-BF28

BLK

WG)....

CABINET

(FRONT)

(WM-BF28

GRY

WG)....

CABINET

(FRONT)

LID,

BATTERY

CASE

(BLK)

LID,

BATTERY

CASE

(WHT)

LID,BATTERY

CASE

(RED)

LID,

BATTERY

CASE

(BLU)

SPRING

TABLE

ASSY,

REEL

PINCH

ROLLER

ASSY

GEAR

ASSY,

PLAY

SPRING

GEAR,

LEVER

(SHUT-OFF)

CUSHION

(C),

MOTOR

BASE

ASSY,

GUIDE

BELT,

CAPSTAN

TERMINAL

BOARD,

RELAY

CABINET

(REAR)

(CF~C)

(BLK)

(WM~AF22/BF22

WHT)....CABINET

(REAR)

(CF-C)

(WM-AF22/BF22

RED)....CABINET

(REAR)

(CF-C)

(WM-AF22/BF22

BLU)....CABINET

(REAR)

(CF-C)

(WM-BF28

AEP,

IT,

UK)....(fMAX—-108MHz)

HOLDER

(CF-B)

ASSY,

CASSETTE

(WM-BF28

WG)...

.(fMAX—107MHz)

HOLDER

(CF-B)

ASSY,

CASSETTE

(WM~AF28)....

HOLDER

(CF-B)

ASSY,

CASSETTE

(WM-AF22/AF28)....

MOUNTED

PCB,

MAIN

BOARD

ASSY,

HEAD

ANTENNA,

FERRITE-ROD

(MW):

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